®Planning appeal decision
3 Grosvenor Gardens, London, NW11 0HH
Planning appeal 6004391 at 3 Grosvenor Gardens, London, NW11 0HH (London Borough of Barnet) was allowed on 21 April 2026 by Inspector Kemmann-Lane T, by written representations. The main issue, as the Inspector framed it: the effect of the proposed ground floor rear extension on the character of the host property, the street scene and the locality.
part single, part two storey side and rear extensions including conversion of existing garage into habitable room and first floor Juliette balcony and new rear patio area. Two storey front extension incorporating new front porch. Associated alterations and extensions to roof including increasing ridge height to create a new crown roof with 2no. rear dormer windows and 1no. dormer window to both side elevations, 3no. rooflights to front roofslope and 2no. rooflights to both side roofslopes
- Authority
- London Borough of Barnet
- Appeal type
- householder · Householder (HAS)
- Procedure
- Written Representations
- Development
- residential · Householder developments
- Inspector
- Kemmann-Lane T
- Postcode
- NW11 0HH
Main issues, as the Inspector framed them
- the effect of the proposed ground floor rear extension on the character of the host property, the street scene and the locality
- the effect of the proposed ground floor rear extension on the living conditions of the neighbouring occupiers at No.5 Grosvenor Gardens in respect of loss of outlook, increased sense of enclosure and potential loss of light and overshadowing
What decided it
The prior approval determination that the ground floor rear extension met the provisions of permitted development rights under Schedule 2, Part 1, Class of the Town and Country Planning (General Permitted Development) (England) Order 2015 satisfied the Inspector that the proposal was acceptable despite its impact on neighbouring living conditions.
What the Inspector cited
- Development plan policies
- Residential Design Guidance Supplementary Planning Document paragraph 14.23Residential Design Guidance Supplementary Planning Document paragraph 14.26Residential Design Guidance Supplementary Planning Document paragraph 14.28Residential Design Guidance Supplementary Planning Document paragraph 14.29Residential Design Guidance Supplementary Planning Document paragraph 14.15Residential Design Guidance Supplementary Planning Document paragraph 14.17Residential Design Guidance Supplementary Planning Document paragraph 14.21
How the Inspector dealt with each one is set out in the app, in order: the development plan, national policy, housing land supply, other considerations and the planning balance, beside the letter.
See how each was appliedThe decision letter
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With an account
What an account adds to this decision
More decisions in London Borough of Barnet
The authority’s record since 2016 · every decision in 2026
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- Allowed10 September 2026600040541 Brent Park Road, London, NW4 3HN
- Notice upheld28 August 2026336160153 Essex Park, London, N3 1ND
- Notice varied and upheld27 August 2026336134827 Dale Grove, London, N12 8EE
- Notice upheld26 August 2026337608848 Oldberry Road, Edgware, HA8 9DB
The main issues, what decided it, the planning balance and the policies and judgments listed as cited are read from the published letter by Town Planner Pro and are our summary, not the Inspector’s words; the letter itself is the record. Contains public sector information licensed under the Open Government Licence v3.0. Research, not advice.