21 Hawthorn Drive New Denham Buckinghamshire UB9 4AJ
Proposal
Double storey rear extension with dormers
- Received
- 17 August 2026
- Council
- Buckinghamshire Council
- ReceivedSubmitted17 Aug
- ValidatedValidated
- Consult.Consultation
- TargetTarget Date
- DecidedDecided
This is a planning application for a two storey rear extension at 21 Hawthorn Drive New Denham Buckinghamshire UB9 4AJ. Buckinghamshire has handled 9,404 applications of this type and approves 78% of them, typically deciding them in 55 days. It was submitted on 17 August 2026 and is still awaiting a decision. The site is in 1 listed building nearby. There are no previous applications recorded at this address. We hold 1,173 applications in total for the UB9 postcode area.
Application Details
Applicant & Agent
Planning Application Dates
Planning Decision
Publicity
Appeal
Additional Information
Source: Buckinghamshire
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Planning constraints
Designations that overlap or adjoin the site outline.
- Flood zone 3: High probability (rivers and sea)Part of the site
- Conservation area: Uxbridge LockNext to the site
Also checked, none recorded (23)
flood storage areas, listed buildings, Article 4 directions, tree preservation orders, green belt, scheduled monuments, World Heritage Sites, World Heritage Site buffer zones, registered parks and gardens, registered battlefields, Heritage at Risk entries, nutrient neutrality catchments, national parks, National Landscapes, SSSIs, Special Areas of Conservation, Special Protection Areas, Ramsar sites, ancient woodland, national nature reserves, local nature reserves, heritage coasts and brownfield registers.
A guide only, from official open data; it is not a planning search. Flood zones cover rivers and sea, not surface water.
Data © Crown copyright and others · sources and licences
Contains public sector information from planning.data.gov.uk (MHCLG and local planning authorities), licensed under the Open Government Licence v3.0. © Crown copyright and database right 2026.
© Historic England 2026. Contains Ordnance Survey data © Crown copyright and database right 2026. The Historic England GIS Data contained in this material was obtained on 2026-10-09. The most publicly available up to date Historic England GIS Data can be obtained from HistoricEngland.org.uk.
© Natural England copyright. Contains Ordnance Survey data © Crown copyright and database right 2026.
© Environment Agency copyright and/or database right 2026. All rights reserved. Flood Map for Planning, Open Government Licence v3.0.
Contains Ordnance Survey data © Crown copyright and database right 2026.
Source: Office for National Statistics licensed under the Open Government Licence v.3.0. Contains OS data © Crown copyright and database right 2026.
Before the decision
You may need a flood risk assessment. Drainage & flood risk consultants near this site
The site is in flood zone 3 (Environment Agency).
- 9.5 miTwickenham
- 10.1 miRichmondRTPI
- 10.3 miTeddingtonRTPI
Nearest first, within 25 miles of the site. Every firm is listed free.
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