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Permitted20/01734/GPDESubmitted 6 years agoRear extension

415 Blackfen Road London Borough of Bexley DA15 9NN

The erection of a single storey rear extension, which the total extension (including previous enlargements) would extend beyond the rear wall of the original dwelling by 6 metres, for which the maximum height of the total enlargement will be 3 metres, and for which the height of the eaves would be 2.8 metres.

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Progress

Submitted
13 Jul 2020
— completed
Validated
13 Jul 2020
— completed
Consultation
7 Aug 2020
— completed
Target date
24 Aug 2020
— completed
Decided
21 Aug 2020
— completed

Application details

Reference
20/01734/GPDE
Local authority
Bexley
Postcode
DA15 9NN
Ward
BLENPE
Application type
Prior Approval
Property type
House

Key dates

Submitted
13 Jul 2020
Validated
13 Jul 2020
Comments close
7 Aug 2020
Target decision
24 Aug 2020
Decided
21 Aug 2020

Estimated project value

£38k–£69k

Typical UK cost for this job type, at outer 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. 3 recent sales are listed below.

Homes here go for about £230,000 — the median of the last 7 market sales in DA15 9NN, £180,000 to £470,000.

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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