19 Clayton Avenue Hassocks West Sussex BN6 8HD
Approved on 3 February 2026
Council decision: PermissionDelegated (officer decision)4 conditions
Boundary © HM Land Registry, © Ordnance Survey · details
This information is subject to Crown copyright and database rights 2026 and is reproduced with the permission of HM Land Registry. The polygons (including the associated geometry, namely x, y co-ordinates) are subject to Crown copyright and database rights 2026 Ordnance Survey AC0000851063. Conditions of use.
Proposal
Proposed single storey rear extension, single storey front extension and first floor flank extension with associated changes to internal layout and fenestration.
- Received
- 10 December 2025
- Decision level
- Delegated (officer decision)
- Council
- Mid Sussex District Council
- Ward
- Hassocks
- ReceivedReceived10 Dec
- ValidatedValidated10 Dec
- Consult.Consultation
- TargetTarget Date4 Feb
- DecidedDecided3 Feb
Decided in 55 days (council typically 49)
About this application
This is a full planning application for a single storey rear extension at 19 Clayton Avenue Hassocks West Sussex BN6 8HD. Mid Sussex has handled 2,577 applications of this type. This one was decided in 55 days, 6 days longer than Mid Sussex's typical decision time. There has been 1 other application at this address. In the past year there have been 101 applications across Hassocks. We hold 1,707 applications in total for the BN6 postcode area.
94% of full applications at Mid Sussex District Council were approved. Across all application types, the council typically decides in about 7 weeks (median).
Based on decided applications received in the last 3 years.Planning something similar? See what gets approved on your street
Application details
- Postcode
- BN6 8HD
- Application type
- Householder Application
- Scale / size
- Small
- Parish
- Hassocks
Planning application dates
- Date validated
- 10 December 2025
- Target decision date
- 4 February 2026
Applicant and agent
- Agent address
- Lightbox Architecture Ltd 121 Greenbank Avenue Saltdean BN2 8QP
Planning decision
- Statutory period
- 56 days
Additional information
- Planning Portal ID
- PP-14552361
- Documents
- 11
Site constraints
Designations that overlap or adjoin the site outline.
- Flood zone 1: Low probability (rivers and sea)
Not published by this council, so not checked: Article 4 directions. Ask the council if these matter.
Possibly incomplete for this council: tree preservation orders.
Also checked, none recorded (22)
flood storage areas, conservation areas, listed buildings, 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 2026-11-03. 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.
Planning history at this site
1 other application at this property, newest first.
Source: Mid Sussex
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Around this site
Nearby applications
- 19 Clayton Avenue Hassocks West Sussex BN6 8HDDM/22/2684 · FullApproved0.0 mi
- 17 Clayton Avenue Hassocks West Sussex BN6 8HDDM/21/2651 · OutlineApproved0.0 mi
- Land To The Rear Of 2 Keymer Road Hassocks West Sussex BN6 8HADM/25/2253 · FullWithdrawn0.0 mi
- Land To The Rear Of 2 Keymer Road Hassocks West Sussex BN6 8HADM/23/3181 · FullApproved0.0 mi
- Adjacent To 27 Clayton Avenue Hassocks West Sussex BN6 8HDDM/24/0800 · TreesApproved0.1 mi
For applicants and trades
Contractors near this project
Find contractors for extensions near this site- Prime Electrical LtdElectrician0.2 mi
- Ben Watson Electrical LtdElectrician0.2 mi
- J. P. G. Builder and Contractors LtdSolid Fuel Heating0.3 mi
- Oxygen ElectricalElectrician0.4 mi
Planning something similar?
See what the council approved and refused for two-storey and first-floor extensions on your street. Pick your home and get the evidence before you pay for drawings.