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Permitted19/AP/5427Submitted 7 years agoLoft conversion

97 Calton Avenue London Borough of Southwark SE21 7DF

Demolition of existing single storey rear extensions. Construction of new single storey rear extension, excavation of new basement (with front and rear lightwells), enlargement of existing rear dormer window, and raising the ridge height of existing rear outrigger.

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Map of the site

Progress

Submitted
12 Sept 2019
— completed
Validated
12 Sept 2019
— completed
Consultation
9 Dec 2019
— completed
Target date
7 Nov 2019
— completed
Decided
13 Jan 2020
— completed

Application details

Reference
19/AP/5427
Local authority
Southwark
Postcode
SE21 7DF
Ward
DUVI
Application type
Householder
Property type
House

Key dates

Submitted
12 Sept 2019
Validated
12 Sept 2019
Comments close
9 Dec 2019
Target decision
7 Nov 2019
Decided
13 Jan 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

Inside the two years most owners do their major work — kitchens, bathrooms, rewires and lofts. 2 recent sales are listed below.

Homes here go for about £3,420,001 — the median of the last 8 market sales in SE21 7DF, £2,600,000 to £3,525,100.

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