HA3 · Wealdstone, Kenton & Harrow Weald
HA3 runs from Wealdstone and Kenton up to Harrow Weald and the Grimsdyke ridge. Conservation coverage is lighter here than the hilltop, so permitted development carries many rear and loft projects, with the address check confirming whether a designation or Article 4 applies.
Location data: postcodes.io · Constraints: planning.data.gov.uk (borough-level) · Open Government Licence
Constraint context · Harrow
Real · planning.data.gov.ukHarrow has 27 designated conservation areas and 0 Article 4 areas. A district is too coarse to say which apply to your house — postcode districts span many streets and HA3 crosses 2 boroughs. Enter a full postcode below for the point-level check, or read the full borough picture on the Harrow planning guide.
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