For a timber garden outbuilding incidental to the main dwelling

Appeal Decision Site visit made on 19 August 2026 by Mr C J Tivey BSc (Hons) BPl MRTPI an Inspector appointed by the Secretary of State Decision date:27 August 2026 Appeal Ref: 6012259 12 The Grove, Luton LU1 5PE • The appeal is made under section 78 of the Town and Country Planning Act 1990 (as amended) against a refusal to grant planning permission. • The appeal is made by Sonia Aiken against the decision of the Council of the Borough of Luton. • The application Ref. is 26/00281/FULHH. • The development proposed is for a timber garden outbuilding incidental to the main dwelling. Decision 1. The appeal is allowed and planning permission is granted for a timber garden outbuilding incidental to the main dwelling at 12 The Grove, Luton LU1 5PE in accordance with the terms of the application, Ref. 26/00281/FULHH, subject to the following conditions: 1) The development hereby permitted shall be maintained in accordance with the following approved plans: TG001, TG002, TG003, TG004 and TG005. 2) The development hereby permitted shall not be used other than for purposes incidental to the dwelling known as 12 The Grove, Luton LU1 5PE. Preliminary Matters 2. A new National Planning Policy Framework (Framework) was issued on 17 August 2026 which replaced the previous version published in December 2024, and all other iterations. Paragraph 1 of Policy S4, as set out therein, stipulates that development proposals within settlements should be approved unless the benefits of doing so would be substantially outweighed by any adverse effects, when assessed against the national decision-making policies in the framework. 3. Policy L2 of the Framework stipulates that substantial weight should be given to the benefits where development proposals would achieve, amongst other things, the creation of additional homes or floor space within settlements through additional development within existing plots, provided that it is consistent with the overall street scene (Policy L2, para. 1.d i.). Furthermore, paragraph 1.d.iii. of Policy L2 states that where the development would involve the use of residential curtilages, it should not occupy more than twice the footprint of all existing buildings on the site and, following development, should retain at least 50% of the non-developed area within the curtilage of the existing buildings, unless additional development can be accommodated without harm to the overall character of the area. Policy DP3 of the Framework sets out the key principles for well-designed places. Appeal Decision 6012259 2 4. I consider that this new national policy does not affect the substance of the proposal before me and therefore it was not necessary to refer back to the parties. I am also aware that the application, the subject of the appeal, was retrospective in nature, however, that in itself does not constitute development for which planning permission is required and therefore I have simplified the description of development in the banner heading and decision above. I have determined the appeal on this basis Main Issues 5. The main issues are the effect of the appeal proposal upon the character and appearance of the area and upon the living conditions of 11 The Grove, with specific reference to outlook. Reasons 6. A very sizeable attached outbuilding has been constructed along the eastern boundary of the site’s rear garden and which runs for the majority of its depth. I understand that it essentially comprises 3no modular units which have been merged into one structure. It is attached to the rear of the host dwelling, and its intended use is for purposes incidental to the residential enjoyment of the host dwelling, which has primarily come about to accommodate the appellant’s child’s special educational needs. 7. The garden within which the outbuilding is located is well screened by mature vegetation to the rear and western side boundary and due to the size of the plot has enabled a relatively generous area of private amenity space to remain; and following development retains at least 50% of the non-developed area within the curtilage of the existing building. 8. The outbuilding has a shallow, mono-pitched roof with the eaves to the rear only marginally higher than the fence along the boundary shared with no11, which itself also has a very generous rear garden. I note the Council’s concerns with regard to an almost continuous expanse of built form along the boundary, however, by virtue of its limited height, I consider that it does not appear visually intrusive or overbearing to the occupants of the neighbouring property. With the rear garden of the host dwelling being visually self contained in all other directions, I consider that the outbuilding is not unduly obtrusive within the rear garden scene. 9. Whilst the length of the outbuilding is such that one would not normally consider it to be subordinate to the depth of the main range of the host dwelling as an extension, in this case and notwithstanding its attachment it is more akin to a garden structure in its design and appearance. Considering the fact that it is concealed from public views, on balance, I find that it does not give rise to demonstrable harm to the character and appearance of the area or to the living conditions of the occupants of no11. 10. I therefore find that the proposal complies with Policies LLP1, LLP19 and LLP25 of the Local Luton Plan 2011 – 2031 which together, in addition to applying a presumption in favour of sustainable development, require extensions to dwellings, amongst other things, to ensure that they do not adversely affect the amenity of nearby occupiers in respect of visual intrusion, having regard to detailed matters of design and scale, whilst also being flexible to accommodate changing living and working requirements of all the members of the community. Appeal Decision 6012259 3 Conclusion and Conditions 11. For the reasons set out above and having regard to all other matters raised, I conclude that the appeal should succeed. 12. As the outbuilding has already been constructed, there is no need to impose the standard time limit condition, however, I consider it is appropriate to require the proposed development to be maintained in accordance with the submitted plans and pursuant to the Council’s suggestion, I have imposed a standard Planning Inspectorate condition regarding the use of the building for incidental purposes only, in the interests of protecting the character and appearance of the area as well as the living conditions of the occupants of neighbouring dwellings. C Tivey INSPECTOR