9 Alpha Street London Borough of Southwark SE15 4NX

Progress

Estimated project value

£47k–£78k

Based on the 19.2m² 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: 19.2m²

Recently sold nearby

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

• FLAT 2, 16 ALPHA STREET, LONDON, SE15 4NXFlat or maisonette · Leasehold · £436,8007 months ago30 Jan 2026
• FLAT 6, 16 ALPHA STREET, LONDON, SE15 4NXFlat or maisonette · Leasehold · £380,0006 years ago10 Dec 2019
• FLAT 5, 16 ALPHA STREET, LONDON, SE15 4NXFlat or maisonette · Leasehold · Not a standard market sale · £220,0008 years ago30 Nov 2017
• 12 ALPHA STREET, LONDON, SE15 4NXTerraced · £795,0008 years ago8 Nov 2017
• FLAT 7, 16 ALPHA STREET, LONDON, SE15 4NXFlat or maisonette · Leasehold · £200,00010 years ago4 Mar 2016
• 13 ALPHA STREET, LONDON, SE15 4NXTerraced · £825,00010 years ago27 Oct 2015
• 8 ALPHA STREET, LONDON, SE15 4NXTerraced · £840,00011 years ago17 Dec 2014
• 4 ALPHA STREET, LONDON, SE15 4NXSemi-detached · £499,99514 years ago18 Nov 2011

Homes here go for about £499,995 — the median of the last 7 market sales in SE15 4NX, £200,000 to £840,000.

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

• 9 Alpha Street London Borough of Southwark SE15 4NXPermittedNext door
• 11 Alpha Street London Borough of Southwark SE15 4NXPermittedNext door
• 11 Alpha Street London Borough of Southwark SE15 4NXPermittedNext door
• 1 Relf Road London Borough of Southwark SE15 4JSPermittedAdjoining
• London Borough of SouthwarkPermittedAdjoining
• 33 Sternhall Lane London Borough of Southwark SE15 4NTRefusedAdjoining