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PermittedP/3991/22Submitted 3 years agoTwo-storey extension

35 Cannonbury Avenue Harrow HA5 1TP

Two storey side extension; external alterations (demolition of attached garage and rear projection)

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Progress

Submitted
6 Dec 2022
— completed
Validated
6 Dec 2022
— completed
Consultation
28 Dec 2022
— completed
Target date
31 Jan 2023
— completed
Decided
13 Feb 2023
— completed

Application details

Reference
P/3991/22
Local authority
Harrow
Postcode
HA5 1TP
Ward
Pinner South
Application type
Householder
Property type
House

Key dates

Submitted
6 Dec 2022
Validated
6 Dec 2022
Comments close
28 Dec 2022
Target decision
31 Jan 2023
Decided
13 Feb 2023

Estimated project value

£90k–£125k

Based on the 36.0m² 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: 36m² · 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 £770,000 — the median of the last 7 market sales in HA5 1TP, £581,000 to £870,000.

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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