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Refused20/03988/FULSubmitted 5 years agoLoft conversion

20 Birkbeck Hill London Borough of Lambeth SE21 8JS

Erection of a mansard loft extension with hipped end, two dormers an a rooflights to the front, two dormers and a rooflight to the rear.

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Progress

Submitted
17 Nov 2020
— completed
Validated
17 Nov 2020
— completed
Consultation
23 Dec 2020
— completed
Target date
12 Jan 2021
— completed
Decided
12 Jan 2021
— completed

Application details

Reference
20/03988/FUL
Local authority
Lambeth
Postcode
SE21 8JS
Ward
THURPK
Application type
All Other
Property type
House

Key dates

Submitted
17 Nov 2020
Validated
17 Nov 2020
Comments close
23 Dec 2020
Target decision
12 Jan 2021
Decided
12 Jan 2021

Estimated project value

£53k–£110k

Based on the 32.6m² of floor area stated in the application, at inner London rates (2026). Source: Checkatrade 2026, loft conversion £1,200-£2,500/m².

Floor area gained: 32.64m² · 1 additional bedrooms

Recently sold nearby

Inside the two years most owners do their major work — kitchens, bathrooms, rewires and lofts. 4 recent sales are listed below.

Homes here go for about £550,000 — the median of the last 7 market sales in SE21 8JS, £325,000 to £843,000.

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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