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PermittedP/4271/21Submitted 4 years agoRear extension

8 Mayfield Avenue Harrow HA3 8EU

CERTIFICATE OF LAWFUL DEVELOPMENT (PROPOSED): Single storey rear extension

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Progress

Submitted
22 Oct 2021
— completed
Validated
22 Oct 2021
— completed
Consultation
22 Oct 2021
— completed
Target date
17 Dec 2021
— completed
Decided
17 Dec 2021
— completed

Application details

Reference
P/4271/21
Local authority
Harrow
Postcode
HA3 8EU
Ward
KENTON WEST
Application type
All Other
Property type
House

Key dates

Submitted
22 Oct 2021
Validated
22 Oct 2021
Comments close
22 Oct 2021
Target decision
17 Dec 2021
Decided
17 Dec 2021

Estimated project value

£75k–£125k

Based on the 33.0m² 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: 33m²

Recently sold nearby

Inside the two years most owners do their major work — kitchens, bathrooms, rewires and lofts.

Homes here go for about £610,000 — the median of the last 7 market sales in HA3 8EU, £191,000 to £770,000.

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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