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Permitted26/AP/0515Submitted 6 months agoRear extension

34 Alleyn Road London Borough of Southwark SE21 8AL

Non-material amendment to planning permission ref no. 24/AP/3809 'Ground floor rear extension, replacement ground floor side extension, replacement rear addition on reduced footprint, enlargement to existing basement with associated lightwells to front and rear, alterations to rear elevation fenestration at ground, first and second floor levels, introduction of low-profile rooflights, replacement of existing roof coverings and windows, brick cleaning and repointing, replacement rear garden boundary treatments (local to house), installation of an air source heat pump unit to lower ground floor with associated plant equipment, replacement front garden paving, and adjustment to front garden boundary to improve vehicle access'. NMA sought to amend the description of development to: 'Ground floor rear extension, replacement ground floor side extension, replacement rear addition on a reduced footprint, enlargement of the existing basement with associated lightwells to the front and rear, alterations to rear elevation fenestration at ground, first and second floor levels, introduction of low-profile rooflights, replacement of existing roof coverings and windows, brick cleaning and repointing, replacement rear garden boundary treatments (local to the house), installation of 2No. of air source heat pump units and 2No. of AC units at lower ground floor level with associated plant equipment, replacement front garden paving, and adjustment to the front garden boundary to improve vehicle access'

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Progress

Submitted
20 Feb 2026
— completed
Validated
20 Feb 2026
— completed
Consultation
— completed
Target date
19 Mar 2026
— completed
Decided
16 Mar 2026
— completed

Application details

Reference
26/AP/0515
Local authority
Southwark
Postcode
SE21 8AL
Ward
DUWO
Application type
All Other
Property type
House

Key dates

Submitted
20 Feb 2026
Validated
20 Feb 2026
Target decision
19 Mar 2026
Decided
16 Mar 2026

Estimated project value

£41k–£75k

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: MyJobQuote / Checkatrade 2026, ~20m² at £1,800-£3,000/m².

Recently sold nearby

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

Homes here go for about £3,175,000 — the median of the last 8 market sales in SE21 8AL, £850,000 to £5,600,000.

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