Planning application
35 Lancaster Mews London W2 3QF
Works: Loft or dormer Domestic
Read from the description, not a valuation. How we read the register
Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.
Proposal
Excavation of basement level, replacement of existing rooflight with proposed rooflight, alteration to garage doors and associated external and internal alterations to mews dwellinghouse.
As published by the council, reference 26/03593/FULL
Application record
- Reference
- 26/03593/FULL
- Type
- Full Planning Permission Application
- Status
- Pending
- Received
- 2 Jun 2026
- Validated
- 2 Jun 2026
- Ward
- Lancaster Gate
- Postcode
- W2 3QF
Timeline
Dates from the published record
-
2 Jun 2026
Received by Westminster
-
21 Jul 2026
Added to PlanIndex
-
Decision
Awaiting decision
Decision expected by 28 July 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.
Westminster took a median of 65 days over the applications it decided in the last year.
Who's behind it
Company information only, from the register and Companies House
Tetra Tech Consulting Ltd Agent, registered in Abingdon
Active · incorporated 1979 · Abingdon
91 applications on PlanIndex · across 29 councils · 97% 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
20 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.
Trade members open them from here.
Open the documentsWhat happens while it is decided
This application is with Westminster for determination, against a statutory target of eight weeks. Over the last year Westminster decided full applications in a median of 89 days. More in our guide to how long planning decisions take.
About full applications
A full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.
Nearby applications
Within 500 metres
-
36 Lancaster Mews London W2 3QF
Details of Glass and rear window restrictor, glass to rear rooflight, signed appendix A and pre-demolition audit pursuant to conditions 4,5,12 and 14 of planning permission dated 5th December 2024 (RN: 24/05136/FULL).
Granted Full applications Loft or dormer Demolition +1 16 docs -
Ambassador Court 17 Craven Terrace London W2 3QH
Erection of a roof extension to provide 2-bedroom flat with terraces to the front and rear.
Withdrawn Full applications Extension 22 docs -
26 Lancaster Mews London W2 3QE
87% historically approved · decision due ~3 Apr
Variation of Condition 1 of planning permission dated 17 June 2025 (RN: 25/02702/FULL) for 'Removal of the dormer extension at roof level, construction of a mansard roof extension and alterations to front elevation including new and replacement windows, juliette balcony, entrance door and garage doors and conversion of garage'. Namely to install low-profile railings at roof level, add recessed planters, and amend the position and size of rooflights.
Awaiting decision Full applications Extension Loft or dormer +1 4 docs -
Ground Floor 21 Craven Terrace London W2 3QH
84% historically approved · decision due ~6 Jul
Display of non-illuminated painted signage to glazing measuring 1.985m x 1.155m.
Awaiting decision Advertising Windows or glazing 7 docs -
Ambassador Court 17 Craven Terrace London W2 3QH
87% historically approved · decision due ~8 Jun
Variation of condition 1 of planning permission dated 8th August 2025 (RN:25/02877/FULL) for the Erection of a roof extension to provide 2-bedroom flat with terraces to the front and rear and including the installation of two condenser units at rear elevation. Namely, infill of the 2nos small set back at the rear and outdoor units (air source heat pump/AC) not stacked up, but placed side to side on the terrace at rear
Awaiting decision Full applications Extension 6 docs -
Ambassador Court 17 Craven Terrace London W2 3QH
87% historically approved · decision due ~8 Dec
Details of glass balustrading, windows, grey roof cladding, sound insulation measures to minimise noise transmission between the new flat and the existing flats on the fourth floor, secure cycle storage, mitigation of the potential increased demand for on-street residents car parking and vibration pursuant to conditions 5, 6, 7, 8, 10,12 of planning permission dated 10th June 2026 (RN:26/02259/FULL).
Awaiting decision Full applications New dwelling Windows or glazing 19 docs
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26/06297/FULL Awaiting decision
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Alterations to rear elevation at basement level comprising repolacement window and installation of double opening door.
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Removal and Installation of external rear air condensers and associated pipe work to ground floor, including internal works to ground and first floor. (Linked with 26/06250/LBC)
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26/03576/FULL Decided
15A Devonshire Terrace London W2 3DW
Erection of an infill extension to basement courtyard to form new bedroom and internal alterations. (Linked with 26/03577/LBC)