Planning application
5 Grittleton Road London W9 2DD
Works: Extension Windows or glazing Small domestic
Read from the description, not a valuation. How we read the register
Refused. Only the applicant can appeal, within the statutory time limit, and a revised scheme can be submitted instead.
Proposal
Amendments to planning permission granted by Appeal Decision dated 26 August 2025 (WCC RN: 25/01993/FULL; Appeal Ref: APP/X5990/W/25/3367634) for the erection of a single-storey side and rear extension to lower ground floor flat. NAMELY, minor repositioning of the approved lightwell within the footprint of the consented rear extension. The lightwell remains of the same size, depth, and design as previously approved and continues to provide natural light and ventilation to the internal accommodation; and revised design and material to rear elevation doors from approved sets of timber French doors with Crittall-style bifolding doors.
As published by the council, reference 25/09246/NMA
Application record
- Reference
- 25/09246/NMA
- Type
- Non-material amendments
- Status
- Decided
- Decision
- Refused As published: Application Refused
- Received
- 22 Dec 2025
- Validated
- 22 Dec 2025
- Decided
- 26 Jan 2026
- Ward
- Maida Vale
- Decision by
- Delegated Decision
- Postcode
- W9 2DD
Timeline
Dates from the published record
-
22 Dec 2025
Received by Westminster
-
26 Jan 2026
Decision issued: Application Refused
-
20 Jul 2026
Added to PlanIndex
Who's behind it
Company information only, from the register and Companies House
Peek Architecture Ltd Agent, an architecture practice
72 applications on PlanIndex · across 6 councils · 76% granted
Trade members see everything this firm has filed, how it was decided, and get an email the day it files again.
See their track recordDocuments
Plans, drawings, consultee responses and the officer's report
9 documents on file for this application
A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.
Watch members (£5 a month) open the document list from here.
Open the documentsWhat this refusal means
Westminster refused this application for the reasons on the decision notice; only the applicant can appeal, and refused schemes often return in revised form. More in our guide to what happens after a planning decision.
About amendment applications
An amendment application makes limited changes to a permission that already exists; anything beyond modest adjustment needs a fresh application. More in our guide to planning application types.
Nearby applications
Within 0.3 miles
-
Flat 1 5 Grittleton Road London W9 2DD
89% historically approved · decision due ~12 Aug
Details of tree protection method statement, detailed design relating to the foundations and floor slab; and details of a biodiversity management plan in relation to the living green roof pursuant to conditions 5 (partial), 6, 8 of planning permission dated 3rd June 2025 (RN 25/02022/FULL)
Decided Trees -
Flat 1 5 Grittleton Road London W9 2DD
89% historically approved · decision due ~12 Aug
Details of tree protection / landscape works (including green roof) / biodiversity management plan pursuant to conditions 5, 6 and 7 of planning permission granted at appeal dated 26 August 2025 (RN: 25/00067/TPREF)
Decided Trees -
Basement 8 Grittleton Road London W9 2DD
Amendments to planning permission dated 28 June 2024 (RN: 23/07655/FULL) for the erection of a new infill extension, demolition of rear infill conservatory, erection of a new single story rear extension, alterations of lower ground floor flat and replacement windows to front elevation; NAMELY replacement of three rooflights with a single rooflight.
Granted Amendments Extension Loft or dormer +2 4 docs -
Flat 1 5 Grittleton Road London W9 2DD
Erection of rear box extension, and extension of existing side in-fill extension, to lower ground floor flat.
Withdrawn Full applications Extension 28 docs -
Flat 1 5 Grittleton Road London W9 2DD
87% historically approved · decision due ~7 Aug
Alterations to lower ground floor flat with demolition of rear infill extension and erection of a new single storey rear extension. Proposed rear extension flat roof with extensive green roof behind parapet (to replace existing in-fill extension).
Awaiting decision Full applications Extension Demolition 19 docsSmall domestic -
47 Chippenham Road London W9 2AH
Alterations to shopfront to include the installation of brick bond roller shutter (Retrospective)
Granted Full applications Windows or glazing 16 docs
Other amendment applications
In Westminster
-
26/06232/NMA Awaiting decision
37 Trevor Place London SW7 1LE
Amendments to planning permission dated 17th July 2026 (RN 26/03030/FULL) for the Alterations including enlargement of louvres and installation of new plant in basement; landscaping of roof terrace; second floor windows replaced with door sets; partial demolition at ground and first floor levels to create new lightwell and landscaped courtyard. NAMELY, addition of a free-standing sauna to the second-floor roof terrace.
-
26/06256/NMA Awaiting decision
Queens Court Queensway London W2 4QN
Amendments to planning permission dated 21st May 2026 (RN:25/05013/FULL) for Variation of conditions 1, 3, 8, 9 and 17 of planning permission dated 11th May 2022 (RN 18/09765/FULL) for the Change of use of rear part of Queensway Market to Retail, Financial and Professional services, Office and Restaurant (within Class E) use and 5 residential units facing Princes Court, reconfiguration of retail units along Queensway including introduction of Retail uses at Nos.23 and 33 (current entrances to Queensway Market) and use of Nos.25 and 41-43 Queensway as Restaurant uses, installation of new shopfronts to Nos.23 to 43 Queensway 23-43, erection of infill extension to rear at ground floor level, erection of two new pavilion structures for Retail use and associated new hard and soft landscaping on land between Queens Court and Princes Court, installation of green roofs, rooflights and mechanical plant within enclosures to first floor level roofs between projecting rear wings of Queens Court installation of kitchen extract ducts to rear elevations, and associated cycle parking, waste storage, plant and other ancillary alterations ('Application 2'). Namely, to vary the hours of operation for the refrigeration plant controlled by condition 6.
-
26/06251/NMA Awaiting decision
19 Cumberland Street London SW1V 4LS
Amendments to planning permission dated 20th March 2026 (RN:25/08960/FULL) for Lower ground floor rear infill extension with terrace above, replacement of rear first floor conservatory, new roof level rear single dormer with access to third floor roof terrace, alterations to windows and external refurbishment, namely the change of conservatory gable roof to a flat GRP roof.
-
26/06201/NMA Awaiting decision
Almack House 28 King Street St James's London SW1Y 6QW
Amendments to planning permission dated 16th April 2026 (RN:26/01487/FULL) for Installation of a mechanical plant at lower ground floor and installation of two grilles to two lower ground floor windows, namely change to approved grille.
-
26/06212/NMA Awaiting decision
10 - 11 Lancaster Gate London W2 3LH
Amendment to Condition 12 (Whole Life Carbon) of planning permission dated 19th April 2024 (RN 23/04044/FULL) for Change of use from hotel to residential use (Class C3) with associated internal alterations to create 11 new units and external alterations comprising reconfiguration and recladding of the rear extension and restoration of the existing building. Namely to include additional requirement to evidence and justify where benchmarks cannot be achieved, consider mitigation measures and if none, evidence that all mitigation measures have been exhausted. (Linked with RN 26/06213/ADFULL)