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Permitted20/AP/2911Submitted 5 years agoLoft conversion

14 Rosenthorpe Road London Borough of Southwark SE15 3EG

Construction of an L-shaped rear dormer extension including raising the ridge by 300mm.

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Progress

Submitted
8 Oct 2020
— completed
Validated
8 Oct 2020
— completed
Consultation
—
— completed
Target date
3 Dec 2020
— completed
Decided
30 Nov 2020
— completed

Application details

Reference
20/AP/2911
Local authority
Southwark
Postcode
SE15 3EG
Ward
PERY
Application type
Householder
Property type
House

Key dates

Submitted
8 Oct 2020
Validated
8 Oct 2020
Target decision
3 Dec 2020
Decided
30 Nov 2020

Estimated project value

£37k–£100k

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: Checkatrade 2026 loft conversion cost guide.

Recently sold nearby

New owners, recently moved in. First work on a house usually follows within months of completing. 2 recent sales are listed below.

Homes here go for about £1,190,000 — the median of the last 8 market sales in SE15 3EG, £575,000 to £1,300,000.

Contains HM Land Registry data © Crown copyright and database right 2026. 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