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PermittedP/0711/21Submitted 5 years agoTwo-storey extension

21 AVONDALE ROAD Harrow HA3 7RE

Single and two storey side extension; single storey rear extension; external alterations (demolition of attached garage)

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Map of the site

Progress

Submitted
4 Mar 2021
— completed
Validated
4 Mar 2021
— completed
Consultation
—
— completed
Target date
19 Apr 2021
— completed
Decided
21 Apr 2021
— completed

Application details

Reference
P/0711/21
Local authority
Harrow
Postcode
HA3 7RE
Ward
Marlborough
Application type
Householder
Property type
House

Key dates

Submitted
4 Mar 2021
Validated
4 Mar 2021
Target decision
19 Apr 2021
Decided
21 Apr 2021

Estimated project value

£110k–£150k

Based on the 43.0m² of floor area stated in the application, at outer London rates (2026). Source: FMB / Checkatrade 2026, two-storey extension £2,000-£2,800/m².

Floor area gained: 43m² · 1 additional bedrooms

Recently sold nearby

New owners, recently moved in. First work on a house usually follows within months of completing. 4 recent sales are listed below.

Homes here go for about £432,500 — the median of the last 6 market sales in HA3 7RE, £316,577 to £520,000.

Contains HM Land Registry data © Crown copyright and database right 2026. 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.

Recorded changes

  • 7 Oct 2026: Approved

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