HA6 · Northwood
HA6 is Northwood — the Frithwood and Green Lane conservation areas and the wooded, higher-value streets on the borough's northern edge. Generous plots support extensions and lofts under permitted development, with conservation designation and the borough's Article 4 directions the exceptions.
Location data: postcodes.io · Constraints: planning.data.gov.uk (borough-level) · Open Government Licence
Constraint context · Hillingdon
Real · planning.data.gov.ukHillingdon has 31 designated conservation areas and 4 Article 4 areas. A district is too coarse to say which apply to your house — postcode districts span many streets and HA6 crosses 2 boroughs. Enter a full postcode below for the point-level check, or read the full borough picture on the Hillingdon planning guide.
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