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31 Kentish Lane Brookmans Park AL9 6NG

6/2026/1924/PN8Class A – enlargement, improvement or other alteration of a dwellinghouse - PRIOR APPROVALAwaiting decision
Prior approval
Approximate location: the centre of the postcode, not the exact property.

Proposal

Prior Approval application for 2 x single storey rear extensions and 1 x single storey side/rear extension measuring 8m in depth, 3m to the eaves and the maximum height of 4m

Received
23 October 2026
Ward
Brookmans Park & Little Heath
  1. Received23 Oct
  2. Validated23 Oct
  3. Consult.
  4. Target
  5. Decided

About this application

This is a planning application for a rear extension at 31 Kentish Lane Brookmans Park AL9 6NG. Welwyn Hatfield has handled 7 applications of this type. It has been with the council since 23 October 2026 and is still awaiting a decision. There are no previous applications recorded at this address. In the past year there have been 79 applications across Brookmans Park & Little Heath. We hold 277 applications in total for the AL9 postcode area.

88% of all applications at Welwyn Hatfield Borough 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.Planning something similar? See what gets approved on your street

Application details

Postcode
AL9 6NG
Application type
Class A – enlargement, improvement or other alteration of a dwellinghouse - PRIOR APPROVAL
Parish
North Mymms

Planning application dates

Date validated
23 October 2026

Applicant and agent

Applicant
Private applicant
Agent address
Highway House Lower Froyle GU34 4NB

Planning decision

Case officer
Mrs Kerrie Charles

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations at the address point. Ones next to the site may also apply.

  • Green belt: Welwyn Hatfield
  • Flood zone 1: Low probability (rivers and sea)

Not published by this council, so not checked: Article 4 directions and tree preservation orders. Ask the council if these matter.

Also checked, none recorded (21)

flood storage areas, conservation areas, listed buildings, 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: Welwyn Hatfield

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