Conversion of roof space to habitable use to include hip to gable extension, rear dormer and 3 x front roof lights (Application for a Certificate of Lawful Development for a Proposed Development)
Erection of a single storey rear extension, which would extend beyond the rear wall of the original house by 4.00 metres, for which the maximum height would be 3.00 metres, and for which the height of the eaves would be 3.00 metres
Conversion of roof space to habitable use to include a rear dormer with 2 front roof lights and conversion of roof from hip to gable end with new gable end window. Front porch (Application for a Certificate of Lawful Development for a Proposed Development)
Change of use from dwelling house (Use Class C3) to a 7-bed House of Multiple Occupations (Sui Genesis Use) for seven residents living together as a single household where care is provided for residents
Change of use from dwellinghouse (Use Class C3) to a 7-bed House in Multiple Occupation (Sui Generis Use) for seven residents living together as a single household where care is provided for residents
Conversion of roof space to habitable use to include hip to gable extension, rear dormer and 3 x front roof lights (Application for a Certificate of Lawful Development for a Proposed Development)
Erection of a single storey rear extension, which would extend beyond the rear wall of the original house by 4.00 metres, for which the maximum height would be 3.00 metres, and for which the height of the eaves would be 3.00 metres
Conversion of roof space to habitable use to include a rear dormer with 2 front roof lights and conversion of roof from hip to gable end with new gable end window. Front porch (Application for a Certificate of Lawful Development for a Proposed Development)
Change of use from dwelling house (Use Class C3) to a 7-bed House of Multiple Occupations (Sui Genesis Use) for seven residents living together as a single household where care is provided for residents
Change of use from dwellinghouse (Use Class C3) to a 7-bed House in Multiple Occupation (Sui Generis Use) for seven residents living together as a single household where care is provided for residents
Building-control records are not yet collected for Hillingdon — the register is being gathered borough by borough (held so far: Lambeth, Brent, Ealing, Westminster, City and others).
Place
What affects it?
Every mapped designation touching a premises in this postcode, with how many of its 27 premises each one covers.
Designation
Coverage
Article 4 Direction Area
Residential extensions · reference A8177 · covers 27 of 27 premises. Some normally permitted changes may require planning permission.
Article 4 Direction Area
Residential extensions · reference A8177 · covers 27 of 27 premises. Some normally permitted changes may require planning permission.
Nearby postcodes and streets
Walk to the next area — linked where the Atlas has a record for it (pilot borough only for now).
Planning precedent23 applications and 27 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy15 EPC records; ratings C: 7, D: 6, E: 2.
What is not assertedNo capacity, value or ownership claim is made at area level; those belong to individual premises records and their evidence.
Intent signals
Planning Atlas Pro
Ownership, finance and market signals recorded at addresses in this postcode — each with date and source. Signals are evidence of change, not a prediction.
Signal
Evidence
Repeat sale · 10 Jun 2025
last sale £475,000 · 24 CAMPION CLOSE · source hmlr_ppd
Repeat sale · 10 Jun 2025
last sale £475,000 · 24 CAMPION CLOSE · source hmlr_ppd
Boundary: OS Postcode Unit areas (Ordnance Survey), 2026-08-14. Planning records: canonical stage2. EPC: EPC register. Premises: OS AddressBase / UPRN.
UB8 3PY, Hillingdon: planning and property history | Planning Atlas