70 Grange Gardens, Pinner, Harrow, HA5 5QF Data via plota.co.uk
Proposal
Two storey side extension; alterations and extension to roof; rear dormer; two rooflights in front roof slope; external alterations (demolition of attached garage and rear projection) Data via plota.co.uk
Application progress
Approved on 12 May 2026 · Delegated decision · Last checked 1 Oct 2026
Documents 16
Decision & officer reports 2
Statements & assessments 1
Plans & drawings 4
Application forms 1
Consultation & comments 2
Other documents 6
Associated applications 2
- Two storey side extension; alterations and extension to roof; rear dormer; two rooflights in front roof slope; external…
Conditions variation sought for 3
Site constraints 4
Checked on 17 October 2026. Historic England, the Environment Agency, Natural England, Transport for London (public transport access levels, Powered by TfL Open Data, OGL v3.0, contains OS data © Crown copyright and database right 2025) and council datasets, Open Government Licence. A boundary can run through a site and the council holds the definitive record: confirm with the council before relying on this.
Sales history 3
Last sold for £875,000 in January 2026. Semi-detached house, freehold.
Sale prices from HM Land Registry's price paid record, matched to this application by its address.
Building
From the energy performance certificate lodged in August 2022, the latest held for this property, matched to this application by its address. The building may have changed since. View the certificate
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Important details
How this decision compares
Decided in 78 days from validation, 22 days slower than Harrow's median of 56 for extensions. Approved, as 79% of extensions here are.
Plota live figures for extensions decided by Harrow in the last twelve months, from validation. Harrow decision record →
Consultation & key dates
- Statutory expiry
- 12 May 2026
Historical activity at this location
25 nearby applications on record - archival context, not part of the live application.
Nearby activity
Harrow ranks #115 out of 296 councils for householder decision speed. Harrow is also one of the strictest councils - it refuses more householder applications than almost any other, with only 83% approved vs 90% nationally.
Sale prices: Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.
Energy performance: Energy performance certificates from the Energy Performance of Buildings Register, Ministry of Housing, Communities and Local Government. Contains public sector information licensed under the Open Government Licence v3.0. © Crown copyright 2026.
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70 Grange Gardens, Pinner, Harrow, HA5 5QF
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