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Permitted26/00346/FULSubmitted 9 months agoRear extension

17 Whittlesey Street London Borough of Lambeth SE1 8SZ

Application for Full Planning Permission for the replacement of existing ground floor rear extension and replacement of existing garage roof with a green roof.

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Map of the site

Progress

Submitted
4 Feb 2026
— completed
Validated
4 Feb 2026
— completed
Consultation
—
— completed
Target date
1 Apr 2026
— completed
Decided
22 Apr 2026
— completed

Application details

Reference
26/00346/FUL
Local authority
Lambeth
Postcode
SE1 8SZ
Ward
WATERL
Application type
All Other
Property type
House

Key dates

Submitted
4 Feb 2026
Validated
4 Feb 2026
Target decision
1 Apr 2026
Decided
22 Apr 2026

Estimated project value

£20k–£33k

Based on the 8.0m² of floor area stated in the application, at inner London rates (2026). Source: FMB / Checkatrade 2026, single-storey extension £1,800-£3,000/m².

Floor area gained: 8m²

Recently sold nearby

Inside the two years most owners do their major work — kitchens, bathrooms, rewires and lofts.

Homes here go for about £2,000,000 — the median of the last 8 market sales in SE1 8SZ, £1,285,000 to £2,450,000.

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.

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