25 De Laune Street London Borough of Southwark SE17 3UU
Demolition of the existing rear addition and the construction of a single-storey side and rear extension and an outrigger dormer extension; the replacement of the windows to the side and rear of the dwelling with timber framed double glazed units; addition of rooflight to existing mansard; and the addition of a Juliet balcony to the rear elevation, to replace the existing window.
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Progress
Application details
- Reference
- 25/AP/3455
- Local authority
- Southwark
- Postcode
- SE17 3UU
- Ward
- NWNG
- Application type
- Householder
- Property type
- House
Key dates
- Submitted
- 1 Dec 2025
- Validated
- 1 Dec 2025
- Target decision
- 25 Jan 2026
- Decided
- 16 Jan 2026
Estimated project value
£38k–£79k
Based on the 23.4m² 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: 23.4m²
Recently sold nearby
Inside the two years most owners do their major work — kitchens, bathrooms, rewires and lofts.
- 25 DE LAUNE STREET, LONDON, SE17 3UUTerraced · £1,600,00014 months ago25 Jun 2025
- 5 DE LAUNE STREET, LONDON, SE17 3UUTerraced · £1,150,0002 years ago24 May 2024
- 32 DE LAUNE STREET, LONDON, SE17 3UUTerraced · £1,525,0003 years ago24 Aug 2023
- 3 DE LAUNE STREET, LONDON, SE17 3UUTerraced · £1,110,0004 years ago11 Mar 2022
- 16 DE LAUNE STREET, LONDON, SE17 3UUFlat or maisonette · Leasehold · £430,0007 years ago2 Sept 2019
- 26 DE LAUNE STREET, LONDON, SE17 3UUTerraced · £1,525,0008 years ago28 Nov 2017
- 22 DE LAUNE STREET, LONDON, SE17 3UUTerraced · £1,240,0009 years ago5 Jun 2017
- 24 DE LAUNE STREET, LONDON, SE17 3UUTerraced · £1,200,0009 years ago27 Apr 2017
Homes here go for about £1,220,000 — the median of the last 8 market sales in SE17 3UU, £430,000 to £1,600,000.
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
- 25 De Laune Street London Borough of Southwark SE17 3UUPermittedNext door
- 25 De Laune Street London Borough of Southwark SE17 3UUPendingNext door
- 25 De Laune Street London Borough of Southwark SE17 3UUPendingNext door
- 25 De Laune Street London Borough of Southwark SE17 3UUPermittedNext door
- London Borough of Southwark SE17 3UUPermittedNext door
- London Borough of Southwark SE17 3TNRefusedAdjoining