First floor side extension; rear dormer roof extension (involving conversion of roofspace into habitable use); front rooflight and replacement ground floor rear door.
Erection of a single storey rear extension, which would extend beyond the rear wall of the original house by 4 metres, for which the maximum height would be 4 metres, and for which the height of the eaves would be 3 metres
Erection of a single storey rear extension, which would extend beyond the rear wall of the original house by 4 metres, for which the maximum height would be 3 metres, and for which the height of the eaves would be 3 metres
Conversion of roofspace to habitable use to include a rear dormer, 3 rear rooflights and 1 side rooflight (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 6 metres, for which the maximum height would be 3 metres, and for which the height of the eaves would be 3 metres
Conversion of roof space to habitable use to include a rear dormer, 2 front rooflights and conversion of roof from hip to gable end with a new gable end window, single storey detached outbuilding to rear for use as a gym/store/sauna and porch to front (Application for a Certificate of Lawful Develop
Conversion of roof space to habitable use to include a rear dormer, 2 front rooflights and conversion of roof from hip to gable end and Single storey detached outbuilding to rear for use as a gym/store/sauna (Application for a Certificate of Lawful Development for a Proposed Development)
First floor side extension; rear dormer roof extension (involving conversion of roofspace into habitable use); front rooflight and replacement ground floor rear door.
Erection of a single storey rear extension, which would extend beyond the rear wall of the original house by 4 metres, for which the maximum height would be 4 metres, and for which the height of the eaves would be 3 metres
Erection of a single storey rear extension, which would extend beyond the rear wall of the original house by 4 metres, for which the maximum height would be 3 metres, and for which the height of the eaves would be 3 metres
Conversion of roofspace to habitable use to include a rear dormer, 3 rear rooflights and 1 side rooflight (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 6 metres, for which the maximum height would be 3 metres, and for which the height of the eaves would be 3 metres
Conversion of roof space to habitable use to include a rear dormer, 2 front rooflights and conversion of roof from hip to gable end with a new gable end window, single storey detached outbuilding to rear for use as a gym/store/sauna and porch to front (Application for a Certificate of Lawful Develop
Conversion of roof space to habitable use to include a rear dormer, 2 front rooflights and conversion of roof from hip to gable end and Single storey detached outbuilding to rear for use as a gym/store/sauna (Application for a Certificate of Lawful Development for a Proposed Development)
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 11 premises each one covers.
Designation
Coverage
Article 4 Direction Area
Residential extensions · reference A8177 · covers 11 of 11 premises. Some normally permitted changes may require planning permission.
Article 4 Direction Area
Residential extensions · reference A8177 · covers 11 of 11 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 precedent17 applications and 17 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy1 EPC records; ratings D: 1.
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
Long hold · 24 May 2001
last sale £166,500 · 25 yrs held · 6 NORTHFIELD PARK · source hmlr_ppd
Long hold · 15 Apr 1999
last sale £162,000 · 27 yrs held · 8 NORTHFIELD PARK · source hmlr_ppd
Long hold · 16 Jul 1998
last sale £95,000 · 27 yrs held · 13 NORTHFIELD PARK · source hmlr_ppd
Long hold · 24 May 2001
last sale £166,500 · 25 yrs held · 6 NORTHFIELD PARK · source hmlr_ppd
Long hold · 15 Apr 1999
last sale £162,000 · 27 yrs held · 8 NORTHFIELD PARK · source hmlr_ppd
Long hold · 16 Jul 1998
last sale £95,000 · 27 yrs held · 13 NORTHFIELD PARK · source hmlr_ppd
Boundary: OS Postcode Unit areas (Ordnance Survey), 2026-08-14. Planning records: canonical stage2. EPC: EPC register. Premises: OS AddressBase / UPRN.
UB3 4NT, Hillingdon: planning and property history | Planning Atlas