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Permitted23/AP/1984Submitted 3 years agoLoft conversion

61 Calton Avenue London Borough of Southwark SE21 7DF

Raising of the existing outrigger roof by approx. 1050mm, to provide additional floorspace on the Second Floor. A new sash window matching the existing windows will replace the small existing window of the outrigger and two rooflights are added to the outrigger roof. The existing dormer on the rear elevation is proposed to be widened by approx. 700mm with two new sash windows to match the existing. The new dormer roof will be finished with roof tiles that will match the existing. The proposed works also include a new conservatory infill extension to the Ground Floor and the Crittall -type glazed conservatory extension will have a matching glazed roof to provide further sunlight into the Ground Floor space. The existing rooflight and double doors to the side of the proposed conservatory will be replaced with a Crittall-type rooflight and double doors, respectively, to match the proposed conservatory.

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Progress

Submitted
18 Jul 2023
— completed
Validated
18 Jul 2023
— completed
Consultation
— completed
Target date
11 Sept 2023
— completed
Decided
28 Sept 2023
— completed

Application details

Reference
23/AP/1984
Local authority
Southwark
Postcode
SE21 7DF
Ward
DUVI
Application type
Householder
Property type
House

Key dates

Submitted
18 Jul 2023
Validated
18 Jul 2023
Target decision
11 Sept 2023
Decided
28 Sept 2023

Estimated project value

£35k–£72k

Based on the 21.3m² 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: 21.3 · 1 additional bedrooms

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.

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