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21 Thornden Cowfold Horsham West Sussex RH13 8AG

DC/21/0278Certificate Proposed Lawful Use/DevApproved
Outline / PiP

Approved on 14 April 2021

Council decision: Application PermittedDelegated (officer decision)

Approximate site (title boundary)
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

Construction of a rear dormer (Certificate of Lawfulness - Proposed)

Received
5 February 2021
Decision level
Delegated (officer decision)
Ward
Cowfold, Shermanbury and West Grinstead
  1. Received5 Feb
  2. Validated5 Feb
  3. Consult.23 Mar
  4. Target2 Apr
  5. Decided14 Apr

Decided in 68 days (council typically 56)

About this application

This is an outline application for a dormer extension at 21 Thornden Cowfold Horsham West Sussex RH13 8AG. Horsham has handled 569 applications of this type. This one was decided in 68 days, 12 days longer than Horsham's typical decision time. There has been 1 other application at this address. In the past year there have been 79 applications across Cowfold, Shermanbury and West Grinstead. We hold 2,379 applications in total for the RH13 postcode area.

83% of outline applications at Horsham District Council were approved. Across all application types, the council typically decides in about 8 weeks (median).

Based on decided applications received in the last 3 years.See what's approved near your address

Application details

Postcode
RH13 8AG
Application type
Certificate Proposed Lawful Use/Dev
Scale / size
Small
Parish
Cowfold PC

Planning application dates

Date validated
5 February 2021
Consultation expiry
23 March 2021
Neighbour consultation end
23 March 2021
Last date for comments
23 March 2021
Target decision date
2 April 2021

Applicant and agent

Agent address
21 THORNDEN COWFOLD HORSHAM RH13 8AG

Planning decision

Statutory period
56 days

Additional information

Planning Portal ID
PP-09492725
Documents
12
Constraints
9

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Flood zone 1: Low probability (rivers and sea)
Also checked, none recorded (24)

flood storage areas, conservation 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 2026-11-03. 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.

Source: Horsham

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