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Permitted23/04569/FULLSubmitted 3 years agoRear extension

5 Castellain Road Westminster W9 1EY

Variation of condition 1 of planning permission dated 08 February 2023 (RN: 22/08627/FULL) for erection of replacement rear extension at lower ground floor level; NAMELY, to amend garden design with introduction of gravel area, small pond, additional planting and gravel detail; lowering of planter depth.

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Map of the site

Progress

Submitted
5 Jul 2023
— completed
Validated
5 Jul 2023
— completed
Consultation
8 Aug 2023
— completed
Target date
30 Aug 2023
— completed
Decided
29 Aug 2023
— completed

Application details

Reference
23/04569/FULL
Local authority
Westminster
Postcode
W9 1EY
Ward
LVW_22
Application type
All Other
Property type
House

Key dates

Submitted
5 Jul 2023
Validated
5 Jul 2023
Comments close
8 Aug 2023
Target decision
30 Aug 2023
Decided
29 Aug 2023

Estimated project value

£41k–£75k

Typical UK cost for this job type, at inner London rates (2026). Estimated from the proposal description — planning applications do not state build cost. Source: MyJobQuote / Checkatrade 2026, ~20m² at £1,800-£3,000/m².

Recently sold nearby

Inside the two years most owners do their major work — kitchens, bathrooms, rewires and lofts. 2 recent sales are listed below.

Homes here go for about £1,050,000 — the median of the last 7 market sales in W9 1EY, £717,000 to £5,795,000.

Contains HM Land Registry data © Crown copyright and database right 2025. This data is licensed under the Open Government Licence v3.0. Sales are matched by postcode, not by property, so a sale listed here may be a neighbouring address. England and Wales only.

Planning constraints

No designations recorded at this location. This is not a formal search — always confirm with the local authority before relying on it.

Designations from planning.data.gov.uk, Open Government Licence v3.0. Indicative only — not a formal local authority search.

Nearby applications