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PermittedP/0399/22Submitted 4 years agoRear extension

50 Borrowdale Avenue Harrow HA3 7PZ

Single storey side to rear extension incorporating garage; re-location of main entrance to front; external alterations (demolition of attached garage)

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Progress

Submitted
8 Feb 2022
— completed
Validated
8 Feb 2022
— completed
Consultation
16 Mar 2022
— completed
Target date
5 Apr 2022
— completed
Decided
5 Apr 2022
— completed

Application details

Reference
P/0399/22
Local authority
Harrow
Postcode
HA3 7PZ
Ward
Marlborough
Application type
Householder
Property type
House

Key dates

Submitted
8 Feb 2022
Validated
8 Feb 2022
Comments close
16 Mar 2022
Target decision
5 Apr 2022
Decided
5 Apr 2022

Estimated project value

£70k–£115k

Based on the 31.0m² of floor area stated in the application, at outer London rates (2026). Source: FMB / Checkatrade 2026, single-storey extension £1,800-£3,000/m².

Floor area gained: 31m²

Recently sold nearby

Inside the two years most owners do their major work — kitchens, bathrooms, rewires and lofts. 5 recent sales are listed below.

Homes here go for about £550,000 — the median of the last 7 market sales in HA3 7PZ, £497,000 to £1,000,000.

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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