England · Local authority

Welwyn Hatfield Borough Council
Planning applications.

Explore collected planning applications and decisions for Welwyn Hatfield Borough Council. Search an address, application reference or proposal to find a record.

Collected application statistics

Collected records · All available dates

21,076Searchable applications

298Recorded as pending

86%Approval rate · 17,018 approved or refused records

2,408Refused applications

14,610 approved · 2,408 refused · 1,082 withdrawn. Received dates in our records: 5 Jan 2005 to 30 Sept 2026. Most recent record check: 13 Oct 2026. Counts reflect the last collected status; some records may be out of date.

Local planning information

Council sources checked 14 Sept 2026

Planning information Planning and building Local plan Our Local Plan Pre-application advice Pre-application advice (planning applications)Conservation areas Schedule of properties removed from the Welwyn Conservation Area Article 4 directions Article 4 Directions

Conservation areas and Article 4 directions

Explore published planning boundaries and follow their source records for designation details. Coverage varies: an empty map does not mean there are no restrictions. Check the council’s current maps and documents before relying on a boundary.

Conservation areas9 mapped area records

Article 4 direction areasNo boundary records available in this collection

Interactive planning map loads with JavaScript. Dataset sources are linked below.

Download Article 4 coverage for all authorities (CSV)

Data downloaded 14 Sept 2026. Display boundaries are simplified and indicative. Map record counts are not a complete count of designations or directions.

Sources: Planning Data conservation areas and Article 4 direction areas. Contains public sector information licensed under the Open Government Licence v3.0.

More application records

Decided6/2020/2595/TC
American locust to prune back to previous prunning
10 Graysfield Welwyn Garden City AL7 4BL
Received 7 Oct 2020
Decided - Granted6/2021/0974/COND
Submission of details pursuant to condition 2 ( acoustic commissioning report & noise impact assessment), on planning permission 6/2019/0577/VAR
1 Howardsgate Welwyn Garden City AL8 6AL
Received 25 Mar 2021
Decided - Granted6/2022/0617/FULL
Installation of 2 Air Source Heat Pumps (revision to approved scheme 6/2021/1789/FULL).
Campus East The Campus Welwyn Garden City Hertfordshire AL8 6AE
Received 15 Mar 2022
Decided - Granted6/2018/2137/HOUSE
Erection of single storey rear extension
59 Marsden Road Welwyn Garden City AL8 6YH
Received 16 Aug 2018
Decided - Granted6/2023/2084/TPO
Reduce oak tree by 50%. The main tree canopy back to the edge of the stumps previously pruned to as tree branches are hitting the roof of 49 and 47a Great Ley. TPO 768 (2018)
49 Great Ley Welwyn Garden City AL7 4TJ
Received 12 Oct 2023
Decided - Granted6/2022/2892/EM
Retrospective installation of concrete driveway with ACO drainage. Installation of mature shrubs
27 Middlefield Welwyn Garden City AL7 4DQ
Received 22 Dec 2022
Decided - Granted6/2024/1411/EM
Replacement of 3 windows and the front door on the front elevation
16 Pitsfield Welwyn Garden City AL8 7SJ
Received 24 Jul 2024
Decided - Granted6/2024/0229/EM
Erection of single storey rear extension
62 Golden Dell Welwyn Garden City AL7 4EB
Received 5 Feb 2024
Decided - Refused6/2020/1069/HOUSE
Erection of single storey rear extension and raising part of garage roof to facilitate the partial conversion of existing garage
42 Longcroft Gardens Welwyn Garden City AL8 6JR
Received 13 May 2020
Decided - Refused6/2021/2436/EM
Conversion of roof space to habitable use to include 1 x rear roof light, erection of a single storey rear extension to include insertion of 1 x roof lantern
27 Furzefield Road Welwyn Garden City AL7 3RL
Received 19 Aug 2021
Decided - Granted6/2021/2711/HOUSE
Erection of two storey side extensions to both side elevations, single storey rear extension and conversion of roof space to habitable use with rear dormer and skylights
18 Thrush Lane Cuffley Potters Bar EN6 4JT
Received 20 Sept 2021
Decided - Granted6/2020/0109/EM
Fell 1x Cherry Plum tree
26 Little Ganett Welwyn Garden City AL7 3DG
Received 16 Jan 2020
Decided - Granted6/2025/2259/EMT
1 x Lawson cypress to fell.
13 Fallowfield Welwyn Garden City AL7 1EE
Received 23 Oct 2025
Decided - Granted6/2021/3495/TPO
Remove lower branches to south side of crown over garage by approximately 2-4 metres to prevent potential damage to garage roof and thin crown by up to 10% also removing any dead wood
5 Heath Cottages Heath Road Little Heath Potters Bar EN6 1LS
Received 16 Dec 2021
Decided6/2022/2634/TC
Robinia tree - 30% crown reduction 2x Maple trees and Plum tree - cut back all over hanging branches from neighbour’s garden
12 The Valley Green Welwyn Garden City AL8 7DQ
Received 21 Nov 2022
Decided - Granted6/2023/0790/HOUSE
Erection of a single storey rear extension
16 Gresley Close Welwyn Garden City AL8 7QB
Received 12 Apr 2023
Decided - Refused6/2019/1588/FULL
Retention of a temporary of mobile home
Mobile Home Vera Lane Digswell Welwyn AL6 0EW
Received 28 Jun 2019
Decided - Granted6/2021/0918/EMT
1 x Silver Birch to reduce by 1.5m height & width. 1 x Silver Birch to remove 2m from dead top section and reduce remainder by 1.5m
22 Fordwich Road Welwyn Garden City AL8 6EY
Received 22 Mar 2021
Decided - Granted6/2019/0919/COND
Submission of details pursuant to condition 1 (material samples), 2 (construction method statement) and 3 (hard and soft landscaping) on planning permission 6/2018/3202/FULL
43 Brookmans Avenue Brookmans Park Hatfield AL9 7QH
Received 16 Apr 2019
Decided - Granted6/2017/2557/EM
Fell 2 x Conifer trees located in rear garden
28 Reddings Welwyn Garden City AL8 7LA
Received 25 Oct 2017
Decided - Granted6/2024/1020/EM
Conversion of garage with extension to front and roof alterations
17 Brockswood Lane Welwyn Garden City AL8 7BA
Received 31 May 2024
Decided - Refused6/2023/2501/HOUSE
Increase in ridge height, alteration from hipped roof to pitched roof and the installation of window, two rooflights and two dormers to facilitate the conversion of the roof of an existing garage to home office
38A Great North Road Welwyn AL6 0PX
Received 14 Dec 2023
Decided - Granted6/2022/2010/PN24
Prior Approval for installation of 114kW solar PV system comprising of 300 x 380w Canadian Solar modules.
East Showroom Hatfield Business Park Hatfield AL10 9WN
Received 30 Aug 2022
Decided - Withdrawn6/2023/1716/LB
Installation of four conservation roof lights to facilitate loft conversion
9 Northaw Place Coopers Lane Northaw Potters Bar EN6 4NQ
Received 15 Aug 2023

Records are ordered by application ID, not submission date. Use search to find a particular address or proposal.

View all applications

Researching a proposal in Welwyn Hatfield Borough Council

Start with the address or application reference. Open a record to read the proposal, dates and available documents, then check the official register for the latest plans and consultation details. If nothing appears, check coverage before treating the result as a complete planning history.

How to search planning applications

Guides to planning records

All planning guides

Understanding planning · 13 min read
Planning application documents: what to read first
Understand planning application documents, officer reports and decision notices. Use a reading checklist, document table and worked example to inspect a case.
UK research
Published 16 Jul 2026Updated 13 Sept 2026
Understanding planning · 13 min read
Planning permission drawings: how to read plans
Read planning drawings, floor plans, elevations and sections. Use labelled diagrams, a drawing comparison table and revision checks to understand a proposal.
UK research
Published 6 Aug 2026Updated 13 Sept 2026
Property research · 13 min read
Planning approval rates: how to read council statistics
Understand planning approval rates with an interactive calculator, worked examples and comparison table. Check sample sizes, outcomes and coverage before comparing.
UK research
Published 13 Aug 2026Updated 13 Sept 2026

What these statistics cover

These figures describe applications collected by PlanningTrack for Welwyn Hatfield Borough Council, across all dates currently available. They are a partial dataset, rather than an authority-wide performance measure. The date range does not establish continuous historical coverage.

The approval percentage is approved records divided by approved plus refused records. Pending, withdrawn and unknown outcomes are excluded. No percentage is shown until there is an approved or refused record.

Check collection coverage