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Permitted20/AP/3692Submitted 5 years agoLoft conversion

17 Piermont Road London Borough of Southwark SE22 0LN

Certificate of lawful development (proposed) for the construction of a dormer roof extension at roof level over rear portion of main house and outrigger; installation of 3 x rooflights to front elevtion and 1x roof light to dormer.

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Progress

Submitted
16 Dec 2020
— completed
Validated
16 Dec 2020
— completed
Consultation
—
— completed
Target date
9 Feb 2021
— completed
Decided
26 Jan 2021
— completed

Application details

Reference
20/AP/3692
Local authority
Southwark
Postcode
SE22 0LN
Ward
DULH
Application type
All Other
Property type
House

Key dates

Submitted
16 Dec 2020
Validated
16 Dec 2020
Target decision
9 Feb 2021
Decided
26 Jan 2021

Estimated project value

£19k–£39k

Based on the 11.4m² 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: 11.4m² · 1 additional bedrooms

Recently sold nearby

Inside the two years most owners do their major work — kitchens, bathrooms, rewires and lofts. 3 recent sales are listed below.

Homes here go for about £972,500 — the median of the last 8 market sales in SE22 0LN, £541,000 to £1,515,000.

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.

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