Conversion of roof space to habitable use to include a rear dormer with Juliette balcony and 2 front and 1 side rooflights (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 3.85 metres, and for which the height of the eaves would be 2.55 metres
Conversion of roof space to habitable use to include a rear dormer, 2 front rooflights and 1 rear rooflight (Application for a Certificate of Lawful Development for a Proposed Development)
Conversion of roof space to habitable use to include a rear dormer with Juliette balcony and 2 front and 1 side rooflights (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 3.85 metres, and for which the height of the eaves would be 2.55 metres
Conversion of roof space to habitable use to include a rear dormer, 2 front rooflights and 1 rear rooflight (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 9 premises each one covers.
Designation
Coverage
Archaeological Priority Area
Sipson lies between Harmondsworth and Harlington and shares a similar history to them. GLHER records, aerial photography, and Ordnance Survey mapping show that it has also been heavily impacted by quarrying, though the village itself has not been affecte · reference 78393 · covers 9 of 9 premises. Groundworks may require archaeological assessment or investigation.
Article 4 Direction Area
Residential extensions · reference A8177 · covers 9 of 9 premises. Some normally permitted changes may require planning permission.
Archaeological Priority Area
There is considerable archaeological evidence for this area due to the extensive excavations that have taken place in relation to Heathrow Terminal 5 and mineral extraction. This APZ also includes the APAs of Harmondsworth, Harlington, West Bedfont and S · reference 77820 · covers 9 of 9 premises. Groundworks may require archaeological assessment or investigation.
Archaeological Priority Area
Sipson lies between Harmondsworth and Harlington and shares a similar history to them. GLHER records, aerial photography, and Ordnance Survey mapping show that it has also been heavily impacted by quarrying, though the village itself has not been affecte · reference 78393 · covers 9 of 9 premises. Groundworks may require archaeological assessment or investigation.
Article 4 Direction Area
Residential extensions · reference A8177 · covers 9 of 9 premises. Some normally permitted changes may require planning permission.
Archaeological Priority Area
There is considerable archaeological evidence for this area due to the extensive excavations that have taken place in relation to Heathrow Terminal 5 and mineral extraction. This APZ also includes the APAs of Harmondsworth, Harlington, West Bedfont and S · reference 77820 · covers 9 of 9 premises. Groundworks may require archaeological assessment or investigation.
Nearby postcodes and streets
Walk to the next area — linked where the Atlas has a record for it (pilot borough only for now).
Planning precedent5 applications and 5 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy6 EPC records; ratings D: 4, E: 1, F: 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
EPC F/G · 12 Dec 2015
· · source epc_register
Long hold · 18 Oct 2000
last sale £210,000 · 25 yrs held · 408 SIPSON ROAD · source hmlr_ppd
EPC F/G · 12 Dec 2015
· · source epc_register
Long hold · 18 Oct 2000
last sale £210,000 · 25 yrs held · 408 SIPSON ROAD · source hmlr_ppd
Boundary: OS Postcode Unit areas (Ordnance Survey), 2026-08-14. Planning records: canonical stage2. EPC: EPC register. Premises: OS AddressBase / UPRN.
UB7 0HT, Hillingdon: planning and property history | Planning Atlas