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You are here: BAILII >> Databases >> England and Wales High Court (Administrative Court) Decisions >> R (Rights: Community: Action) v Secretary of State for Housing, Communities And Local Government [2020] EWHC 3073 (Admin) (17 November 2020) URL: http://www.bailii.org/ew/cases/EWHC/Admin/2020/3073.html Cite as: [2020] EWHC 3073 (Admin), [2021] PTSR 553, [2020] WLR(D) 618, [2021] JPL 799, [2021] Env LR 21 |
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QUEEN'S BENCH DIVISION
DIVISIONAL COURT
Strand, London, WC2A 2LL |
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B e f o r e :
MR JUSTICE HOLGATE
____________________
R (RIGHTS: COMMUNITY: ACTION) |
Claimant |
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- and - |
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SECRETARY OF STATE FOR HOUSING, COMMUNITIES and LOCAL GOVERNMENT |
Defendant |
____________________
Rupert Warren QC and Ms. Anjoli Foster (instructed by Government Legal Department ) for the Defendant
Hearing dates: 14th to 15th October 2020
____________________
Crown Copyright ©
Lord Justice Lewis and Mr Justice Holgate :
- The Town and Country Planning (General Permitted Development) (England) (Amendment) (No. 2) Order 2020 ("SI 2020 No. 755")
- The Town and Country Planning (General Permitted Development) (England) (Amendment) (No. 3) Order 2020 ("SI 2020 No. 756")
- The Town and Country Planning (Use Classes) (Amendment) (England) Regulations 2020 ("SI 2020 No. 757").
(i) Whether each of the statutory instruments constituted a plan or programme which ought to have been the subject of an environmental assessment before being made, pursuant to the Environmental Assessment of Plans and Programmes Regulations 2004 (SI 2004 No. 1633) ("the 2004 Regulations");
(ii) Whether in making SI 2020 No. 755 and SI 2020 No. 756 the defendant failed to comply with the public sector equality duty ("PSED") contained in section 149 of the Equality Act 2010;
(iii) Whether the defendant acted unlawfully as he (a) did not comply with requirements for lawful consultation by failing "conscientiously to consider" the responses submitted on the planning reforms proposed, (b) failed to take into account advice from the Government's own experts before making SI 2020 No. 755 and SI 2020 No. 756, (c) failed to act consistently by consulting on proposals relating to phone masts but not consulting on the statutory instruments at issue in the present case and (d) failed to undertake a further consultation exercise in relation to SI 2020 No 756.
The Background
The Claimant
Permitted Development Rights
The Process Leading to the SIs
The Statutory Framework
Town and Country Planning Act 1990
"For the purposes of this Act "building operations" includes—
demolition of buildings;
rebuilding;
structural alterations of or additions to buildings; and
other operations normally undertaken by a person carrying on business as a builder."
"in the case of buildings or other land which are used for a purpose of any class specified in an order made by the Secretary of State under this section, the use of the buildings or other land or, subject to the provisions of the order, of any part of the buildings or the other land, for any other purpose of the same class."
The UCO 1987 was made under the predecessor to this provision (s. 22(2)(f) of the Town and Country Planning Act 1971).
- a development order,
- a local development order,
- a neighbourhood order, or
- the LPA on an application made to that authority
Planning permission may also be granted through a "simplified planning zone scheme" (ss. 82 and 86) or through the designation of an "enterprise zone" (s. 88).
"(1) The Secretary of State shall by order (in this Act referred to as a "development order") provide for the granting of planning permission."
(2) A development order may either—
(a) itself grant planning permission for development specified in the order or for development of any class specified; or
(b) in respect of development for which planning permission is not granted by the order itself, provide for the granting of planning permission by the local planning authority (or, in the cases provided in the following provisions, by the Secretary of State [or the Welsh Ministers on application to the authority (or, in the cases provided in the following provisions, on application to the Secretary of State or the Welsh Ministers) in accordance with the provisions of the order.
(3) A development order may be made either—
(a) as a general order applicable, except so far as the order otherwise provides, to all land, or
(b) as a special order applicable only to such land or descriptions of land as may be specified in the order.
(4) In this Act, references to a development order are—
in relation to England, references to a development order made by the Secretary of State;
in relation to Wales, references to a development order made by the Welsh Ministers."
"(1) Planning permission granted by a development order may be granted either unconditionally or subject to such conditions or limitations as may be specified in the order.
(1A) Without prejudice to the generality of subsection (1), where planning permission is granted by a development order for building operations in England, the order may require the approval of the local planning authority, or the Secretary of State, to be obtained—
(a) for those operations, or
(b) with respect to any matters that relate to those operations, or to the use of the land in question following those operations, and are specified in the order.
(2) …….
(2A) Without prejudice to the generality of subsection (1), where planning permission is granted by a development order for development consisting of a change in the use of land in England, the order may require the approval of the local planning authority, or of the Secretary of State, to be obtained—
(a) for the use of the land for the new use;
(b) with respect to matters that relate to the new use and are specified in the order.
…….."
"A "prior approval application", in connection with planning permission granted by a development order, means an application made to a local planning authority for—
(a) any approval of the authority required under the order, or
(b) a determination from the authority as to whether such approval is required."
The GPDO 2015
"planning permission is hereby granted for the classes of development described as permitted development in schedule 2."
"any permission granted by article 3(1) is subject to any relevant exception, limitation or condition specified in Schedule 2."
"Land within—
(a) an area designated as a conservation area under section 69 of the Planning (Listed Buildings and Conservation Areas) Act 1990 (designation of conservation areas);
(b) an area of outstanding natural beauty;
(c) an area specified by the Secretary of State for the purposes of section 41(3) of the Wildlife and Countryside Act 1981 (enhancement and protection of the natural beauty and amenity of the countryside);
(d) the Broads;
(e) a National Park; and
(f) a World Heritage Site."
The Use Classes Order 1987
"Subject to the provisions of this Order, where a building or other land is used for a purpose of any class specified in the Schedule, the use of that building or that other land for any other purpose of the same class shall not be taken to involve development of the land.
A "building" includes land occupied with the building and used for the same purposes (article 3(2))."
A1 – Shops
A2 – Financial and professional services
A3 – Restaurants and cafes
A4 – Drinking establishments
A5 – Hot food takeaways
B1 – Business use
B2 – General industrial use
B3 – Storage or distribution use
C1 – Hotels
C2 – Residential institutions
C2A – Secure residential institutions
C3 – Dwelling houses
C4 – Houses in multiple occupation
D1 – Non-residential institutions
D2 – Assembly and leisure
The Statutory Instruments under challenge
SI 2020 No. 632
SI 2020 No. 755
Class AA
Up to two additional storeys of new dwelling houses above the topmost storey of a detached building used for retail purposes (Use Classes A1 to A3), offices, a betting office, launderette or pay day loan shop ("commercial uses") or a mixture of such uses, with or without dwelling houses. The overall height of the completed development may not exceed 30m.
Class AB
One additional storey of new dwelling houses (where the existing building is single storey), or otherwise up to two additional storeys, above a terraced building used for the same purposes as in Class AA. The overall height of the completed development may not exceed 18m.
Class AC
One additional storey of new dwelling houses, (where the existing building is single storey), or otherwise up to two additional storeys, above a terraced building in use as a single dwelling. The overall height of the completed development may not exceed 18m.
Class AD
One additional storey of new dwelling houses (where the existing building is single storey) or otherwise up to two additional storeys, above a detached single dwelling. The overall height of the completed development must not exceed 18m.
SI 2020 No.756
SI 2020 No. 757
(i) The existing schedule to the UCO 1987 is renamed "Schedule 1";
(ii) The existing Use Classes A, B1 and D are revoked, so that schedule 1 refers solely to Classes B2, B8, C1, C2, C2A, C3 and C4;
(iii) Schedule 2 has been added to the UCO 1987. It includes a single new Class E, a "commercial, business and service" Use Class, which amalgamates much of the former A1 to A3 Use Classes, the B1 Use Class and elements of the D1 and D2 Use Classes;
(iv) Other uses in the former D1 and D2 Use Classes now form the new F1 (learning and non-residential institutions) and F2 (local community) Use Classes.
(v) Certain uses in the former A4, A5 and D2 Use Classes have been added to the list of article 3(6) sui generis uses, and thus brought into planning control.
The Directive and the 2004 Regulations
The Directive
"Article 174 of the Treaty provides that Community policy on the environment is to contribute to, inter alia, the preservation, protection and improvement of the quality of the environment, the protection of human health and the prudent and rational utilisation of natural resources and that it is to be based on the precautionary principle. Article 6 of the Treaty provides that environmental protection requirements are to be integrated into the definition of Community policies and activities, in particular with a view to promoting sustainable development."
"Environmental assessment is an important tool for integrating environmental considerations into the preparation and adoption of certain plans and programmes which are likely to have significant effects on the environment in the Member States, because it ensures that such effects of implementing plans and programmes are taken into account during their preparation and before their adoption."
"Other plans and programmes which set the framework for future development consent of projects may not have significant effects on the environment in all cases and should be assessed only where Member States determine that they are likely to have such effects."
"The objective of this Directive is to provide for a high level of protection of the environment and to contribute to the integration of environmental considerations into the preparation and adoption of plans and programmes with a view to promoting sustainable development, by ensuring that, in accordance with this Directive, an environmental assessment is carried out of certain plans and programmes which are likely to have significant effects on the environment."
" 'plans and programmes' shall mean plans and programmes, including those co-financed by the European Community, as well as any modifications to them:
— which are subject to preparation and/or adoption by an authority at national, regional or local level or which are prepared by an authority for adoption, through a legislative procedure by Parliament or Government, and
— which are required by legislative, regulatory or administrative provisions".
"1. An environmental assessment, in accordance with Articles 4 to 9, shall be carried out for plans and programmes referred to in paragraphs 2 to 4 which are likely to have significant environmental effects.
2. Subject to paragraph 3, an environmental assessment shall be carried out for all plans and programmes,
(a) which are prepared for agriculture, forestry, fisheries, energy, industry, transport, waste management, water management, telecommunications, tourism, town and country planning or land use and which set the framework for future development consent of projects listed in Annexes I and II to Directive 85/337/EEC, or
(b) which, in view of the likely effect on sites, have been determined to require an assessment pursuant to Article 6 or 7 of Directive 92/43/EEC.
3. Plans and programmes referred to in paragraph 2 which determine the use of small areas at local level and minor modifications to plans and programmes referred to in paragraph 2 shall require an environmental assessment only where the Member States determine that they are likely to have significant environmental effects.
4. Member States shall determine whether plans and programmes, other than those referred to in paragraph 2, which set the framework for future development consent of projects, are likely to have significant environmental effects."
"1. The characteristics of plans and programmes, having regard, in particular, to
— the degree to which the plan or programme sets a framework for projects and other activities, either with regard to the location, nature, size and operating conditions or by allocating resources,
— the degree to which the plan or programme influences other plans and programmes including those in a hierarchy,
— the relevance of the plan or programme for the integration of environmental considerations in particular with a view to promoting sustainable development,
— environmental problems relevant to the plan or programme,
— the relevance of the plan or programme for the implementation of Community legislation on the environment (e.g. plans and programmes linked to waste-management or water protection).
2. Characteristics of the effects and of the area likely to be affected, having regard, in particular, to
— the probability, duration, frequency and reversibility of the effects,
— the cumulative nature of the effects,
— the transboundary nature of the effects,
— the risks to human health or the environment (e.g. due to accidents),
— the magnitude and spatial extent of the effects (geographical area and size of the population likely to be affected),
— the value and vulnerability of the area likely to be affected due to:
— special natural characteristics or cultural heritage,
— exceeded environmental quality standards or limit values,
— intensive land-use,
— the effects on areas or landscapes which have a recognised national, Community or international protection status."
The 2004 Regulations
"Subject to paragraph (5) and regulation 7, where–
(a) the first formal preparatory act of a plan or programme, other than a plan or programme of the description set out in paragraph (2) or (3), is on or after 21st July 2004;
(b) the plan or programme sets the framework for future development consent of projects; and
(c) the plan or programme is the subject of a determination under regulation 9(1) or a direction under regulation 10(3) that it is likely to have significant environmental effects,
the responsible authority shall carry out, or secure the carrying out of, an environmental assessment, in accordance with Part 3 of these Regulations, during the preparation of that plan or programme and before its adoption or submission to the legislative procedure"
The Grounds of Challenge
(1) In respect of each of the three SIs, the Secretary of State unlawfully failed to carry out an environmental assessment pursuant to the Directive and the 2004 Regulations. The measures in question clearly set the framework for development consents: alternatively, they modify an existing plan or programme that sets the framework for development consents. In terms of environmental impacts, the Secretary of State cannot rely on EIA to bypass the overarching SEA requirement: and in any event, the potential environmental impacts cannot be summarily dismissed without a proper screening process.
(2) In respect of SI 2020 N0. 755 and SI 2020 No. 756 the Secretary of State failed to have due regard to the PSED in s.149 of the Equality Act 2010. In the light of the previously unpublished equality impact assessments, the claimant no longer pursues the argument that due regard was not had to the equality impacts of Class E (SI 2020 No. 757).
(3) In respect of each of the three SIs, the Secretary of State failed to consider the weight of the evidence against these radical reforms, including prior consultation responses and the advice of his own experts. Moreover, he acted with unlawful inconsistency, and in breach of an express promise to re-consult. This composite ground is divided as follows:
(a) The Secretary of State failed conscientiously to consider the responses to the consultation on proposed planning reforms which ran from 29 October 2018 to 14 January 2019, contrary to the fourth Sedley/Gunning principle (R v Brent London Borough Council, ex p Gunning (1985) 84 LGR 168). While he may have been aware of the highly negative consultation responses, he approached the consultation exercise with no intention of changing his mind about the substance of the reforms.
(b) In respect of SI 2020 No. 755 and SI 2020 No. 756, the Secretary of State failed to take into account the advice of the Government's own experts: in particular, the findings of the Building Better, Building Beautiful Commission's "Living with Beauty" Report and the findings of his own commissioned expert report "Research into the quality standard of homes delivered through change of use Permitted Development rights" (The Clifford report). While he may have been aware of these reports, he did not actively consider their findings or weigh them up in his mind.
(c) In respect of SI 2020 No. 755 and SI 2020 No. 756, the Secretary of State adopted an approach which was unfair, inconsistent and/or irrational in the context of the approach taken to similar proposed PD reforms: namely those relating to the deployment of 5G wireless masts.
(d) In respect of SI 2020 No. 756, the Secretary of State was required to reconsult before introducing Class ZA. There was a legitimate expectation of reconsultation on the proposal for a PD right allowing the demolition and rebuild of commercial properties and residential blocks, arising from an express and unequivocal promise to re-consult which was made in the original consultation document.
Ground 1 – The Applicability of the Directive and the 2004 Regulations to the SIs
The issues
(1) The plan or programme must be subject to preparation or adoption by an authority at national, regional, or local level, or be prepared by an authority for adoption, through a legislative procedure by Parliament or Government;
(2) The plan or programme must be required by legislative, regulatory or administrative provisions;
(3) The plan or programme must set the framework for future development consents of projects; and
(4) The plan or programme must be likely to have significant environmental effects.
Submissions
Discussion
"The starting point is that the SEA Directive plainly does not require an environmental assessment to be carried out for all "plans or programmes" whose implementation would have a major impact on the environment. Even on the footing that a plan or programme is required (or regulated) by legislative, regulatory or administrative provisions within article 2(a) and has a "significant environmental [effect]" within article 3(1), an environmental assessment is still not required unless the plan or programme in question "[sets] the framework for future development consent" within article 3(2)(a)."
Ground 2 – The Public Sector Equality Duty
Discussion
"(1) A public authority must, in the exercise of its functions, have due regard to the need to—
(a) eliminate discrimination, harassment, victimisation and any other conduct that is prohibited by or under this Act;
(b) advance equality of opportunity between persons who share a relevant protected characteristic and persons who do not share it;
(c) foster good relations between persons who share a relevant protected characteristic and persons who do not share it.
"(3) Having due regard to the need to advance equality of opportunity between persons who share a relevant protected characteristic and persons who do not share it involves having due regard, in particular, to the need to—
(a) remove or minimise disadvantages suffered by persons who share a relevant protected characteristic that are connected to that characteristic;
(b) take steps to meet the needs of persons who share a relevant protected characteristic that are different from the needs of persons who do not share it;
…..
" (7) The relevant protected characteristics are—
age;
disability;
….."
Ground 3 – Failure to take account of material considerations, inconsistency, and departure from a promise to consult
Discussion
"121. In summary, the trend of modern authority, judicial and academic, favours a narrow interpretation of the Coughlan principle, which can be simply stated. Where a promise or representation, which is "clear, unambiguous and devoid of relevant qualification", has been given to an identifiable defined person or group by a public authority for its own purposes, either in return for action by the person or group, or on the basis of which the person or group has acted to its detriment, the court will require it to be honoured, unless the authority is able to show good reasons, judged by the court to be proportionate, to resile from it. In judging proportionality the court will take into account any conflict with wider policy issues, particularly those of a "macro-economic" or "macro-political" kind. By that test, for the reasons given by Lord Neuberger PSC, the present appeal must fail."
CONCLUSIONS
Annex: Example of a permitted development right subject to prior approval Class AA of Part 1 to Schedule 2 to GPDO 2015 (inserted by SI 2020 No. 755)
"Class AA - enlargement of a dwellinghouse by construction of additional storeys
AA. - Permitted development
The enlargement of a dwellinghouse consisting of the construction of—
(a) up to two additional storeys, where the existing dwellinghouse consists of two or more storeys; or
(b) one additional storey, where the existing dwellinghouse consists of one storey,
immediately above the topmost storey of the dwellinghouse, together with any engineering operations reasonably necessary for the purpose of that construction.
AA.1. - Development not permitted
Development is not permitted by Class AA if—
(a) permission to use the dwellinghouse as a dwellinghouse has been granted only by virtue of Class M, N, O, P, PA or Q of Part 3 of this Schedule (changes of use);
(b) the dwellinghouse is located on—
(i) article 2(3) land; or(ii) a site of special scientific interest;
(c) the dwellinghouse was constructed before 1st July 1948 or after 28th October 2018;
(d) the existing dwellinghouse has been enlarged by the addition of one or more storeys above the original dwellinghouse, whether in reliance on the permission granted by Class AA or otherwise;
(e) following the development the height of the highest part of the roof of the dwellinghouse would exceed 18 metres;
(f) following the development the height of the highest part of the roof of the dwellinghouse would exceed the height of the highest part of the roof of the existing dwellinghouse by more than—
(i) 3.5 metres, where the existing dwellinghouse consists of one storey; or(ii) 7 metres, where the existing dwellinghouse consists of more than one storey;
(g) the dwellinghouse is not detached and following the development the height of the highest part of its roof would exceed by more than 3.5 metres—
(i) in the case of a semi-detached house, the height of the highest part of the roof of the building with which it shares a party wall (or, as the case may be, which has a main wall adjoining its main wall); or(ii) in the case of a terrace house, the height of the highest part of the roof of every other building in the row in which it is situated;
(h) the floor to ceiling height of any additional storey, measured internally, would exceed the lower of—
(i) 3 metres; or(ii) the floor to ceiling height, measured internally, of any storey of the principal part of the existing dwellinghouse;
(i) any additional storey is constructed other than on the principal part of the dwellinghouse;
(j) the development would include the provision of visible support structures on or attached to the exterior of the dwellinghouse upon completion of the development; or
(k) the development would include any engineering operations other than works within the curtilage of the dwellinghouse to strengthen its existing walls or existing foundations.
AA.2. - Conditions
(1) Development is permitted by Class AA subject to the conditions set out in sub-paragraphs (2) and (3).
(2) The conditions in this sub-paragraph are as follows—
(a) the materials used in any exterior work must be of a similar appearance to those used in the construction of the exterior of the existing dwellinghouse;
(b) the development must not include a window in any wall or roof slope forming a side elevation of the dwelling house;
(c) the roof pitch of the principal part of the dwellinghouse following the development must be the same as the roof pitch of the existing dwellinghouse; and
(d) following the development, the dwellinghouse must be used as a dwellinghouse within the meaning of Class C3 of the Schedule to the Use Classes Order and for no other purpose, except to the extent that the other purpose is ancillary to the primary use as a dwellinghouse.
(3) The conditions in this sub-paragraph are as follows—
(a) before beginning the development, the developer must apply to the local planning authority for prior approval as to—
(i) impact on the amenity of any adjoining premises including overlooking, privacy and the loss of light;(ii) the external appearance of the dwellinghouse, including the design and architectural features of—(aa) the principal elevation of the dwellinghouse, and(bb) any side elevation of the dwellinghouse that fronts a highway;(iii) air traffic and defence asset impacts of the development; and(iv) whether, as a result of the siting of the dwellinghouse, the development will impact on a protected view identified in the Directions Relating to Protected Vistas dated 15th March 2012 issued by the Secretary of State;
(b) before beginning the development, the developer must provide the local planning authority with a report for the management of the construction of the development, which sets out the proposed development hours of operation and how any adverse impact of noise, dust, vibration and traffic on adjoining owners or occupiers will be mitigated;
(c) the development must be completed within a period of 3 years starting with the date prior approval is granted;
(d) the developer must notify the local planning authority of the completion of the development as soon as reasonably practicable after completion; and
(e) that notification must be in writing and include—
(i) the name of the developer;(ii) the address of the dwellinghouse; and(iii) the date of completion.
AA.3. - Procedure for applications for prior approval
(1) The following sub-paragraphs apply where an application to the local planning authority for prior approval is required by paragraph AA.2(3)(a)
(2) The application must be accompanied by—
(a) a written description of the proposed development, including details of any works proposed;
(b) a plan which is drawn to an identified scale and shows the direction of North, indicating the site and showing the proposed development; and
(c) a plan which is drawn to an identified scale and shows—
(i) the existing and proposed elevations of the dwellinghouse, and(ii) the position and dimensions of the proposed windows.
(3) The local planning authority may refuse an application where, in its opinion—
(a) the proposed development does not comply with, or
(b) the developer has provided insufficient information to enable the authority to establish whether the proposed development complies with,
any conditions, limitations or restrictions specified in paragraphs AA.1 and AA.2.
(4) Sub-paragraphs (5) to (8) do not apply where a local planning authority refuses an application under sub-paragraph (3); and for the purposes of section 78 (appeals) of the Act, such a refusal is to be treated as a refusal of an application for approval.
(5) The local planning authority must notify each adjoining owner or occupier about the proposed development by serving on them a notice which—
(a) describes the proposed development, including the maximum height of the proposed additional storeys;
(b) provides the address of the proposed development; and
(c) specifies the date, which must not be less than 21 days from the date the notice is given, by which representations are to be received by the local planning authority.
(6) Where the application relates to prior approval as to the impact on air traffic or defence assets, the local planning authority must consult any relevant operators of aerodromes, technical sites or defence assets and where appropriate the Civil Aviation Authority and the Secretary of State for Defence.
(7) Where an aerodrome, technical site or defence asset is identified on a safeguarding map provided to the local planning authority, the local planning authority must not grant prior approval contrary to the advice of the operator of the aerodrome, technical site or defence asset, the Civil Aviation Authority or the Secretary of State for Defence.
(8) Where the application relates to prior approval as to the impact on protected views, the local planning authority must consult Historic England, the Mayor of London and any local planning authorities identified in the Directions Relating to Protected Vistas dated 15th March 2012 issued by the Secretary of State.
(9) The local planning authority must notify the consultees referred to in sub-paragraphs (6) and (8) specifying the date by which they must respond, being not less than 21 days from the date the notice is given.
(10) When computing the number of days in sub-paragraphs (5)(c) and (9), any day which is a public holiday must be disregarded.
(11) The local planning authority may require the developer to submit such information as the authority may reasonably require in order to determine the application, which may include—
(a) assessments of impacts or risks;
(b) statements setting out how impacts or risks are to be mitigated, having regard to the National Planning Policy Framework issued by the Ministry of Housing, Communities and Local Government in February 2019; and
(c) details of proposed building or other operations.
(12) The local planning authority must, when determining an application—
(a) take into account any representations made to them as a result of any notice given under sub-paragraph (5) and any consultation under sub-paragraph (6) or (8); and
(b) have regard to the National Planning Policy Framework issued by the Ministry of Housing, Communities and Local Government in February 2019, so far as relevant to the subject matter of the prior approval, as if the application were a planning application.
(13) The development must not begin before the receipt by the applicant from the local planning authority of a written notice giving their prior approval.
(14) The development must be carried out in accordance with the details approved by the local planning authority.
(15) The local planning authority may grant prior approval unconditionally or subject to conditions reasonably related to the subject matter of the prior approval.
AA.4. - Interpretation of Class AA
(1) For the purposes of Class AA—
"defence asset" means a site identified on a safeguarding map provided to the local planning authority for the purposes of a direction made by the Secretary of State in exercise of the powers conferred by article 31(1) of the Procedure Order or any previous powers to the like effect;
"detached", in relation to a dwellinghouse, means that the dwellinghouse does not—
(a) share a party wall with another building; or
(b) have a main wall adjoining the main wall of another building;
"principal part", in relation to a dwellinghouse, means the main part of the dwellinghouse excluding any front, side or rear extension of a lower height, whether this forms part of the original dwellinghouse or is a subsequent addition;
"semi-detached", in relation to a dwellinghouse, means that the dwellinghouse is neither detached nor a terrace house;
"technical sites" has the same meaning as in the Town and Country Planning (Safeguarded Aerodromes, Technical Sites and Military Explosives Storage Areas) Direction 2002;
"terrace house" means a dwellinghouse situated in a row of three or more buildings, where—
(a) it shares a party wall with, or has a main wall adjoining the main wall of, the building on either side; or
(b) if it is at the end of a row, it shares a party wall with, or has a main wall adjoining the main wall of, a building which fulfils the requirements of paragraph a.
(2) In Class AA references to a "storey" do not include—
(a) any storey below ground level; or
(b) any accommodation within the roof of a dwellinghouse, whether comprising part of the original dwellinghouse or created by a subsequent addition or alteration,
and accordingly, references to an "additional storey" include a storey constructed in reliance on the permission granted by Class AA which replaces accommodation within the roof of the existing dwellinghouse.".
(3) In Class B (additions etc to the roof of a dwellinghouse), in paragraph B.1 (development not permitted)—
(a) at the end of sub-paragraph (f) omit "or";
(b) at the end of sub-paragraph (g) insert—
"; or
(h) the existing dwellinghouse has been enlarged in reliance on the permission granted by Class AA (enlargement of a dwellinghouse by construction of additional storeys).".
(4) In paragraph I (interpretation of Part 1), in the definition of "terrace house", before "means" insert ", except in Class AA (enlargement of a dwellinghouse by construction of additional storeys),"."