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

28,144Searchable applications

307Recorded as pending

87%Approval rate · 23,257 approved or refused records

3,128Refused applications

20,129 approved · 3,128 refused · 1,508 withdrawn. Received dates in our records: 1 Nov 1999 to 13 Oct 2026. Most recent record check: 17 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 Counts reflect the last collected status; some records may be out of date.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

Decided - Granted6/2026/0016/COND
Submission of details pursuant to condition 1 (Biodiversity Gain Plan), condition 2 (Habitat Management Monitoring Plan), condition 3 (Landscaping) and condition 4 (Material samples of proposed fenestration) on planning permission 6/2025/0781/FULL
The North Star Nursery 82 Great North Road Oaklands AL6 0TA
Received 5 Jan 2026
Decided - GrantedN6/2014/1163/FP
Change of use of commercial property to residential (4no one bed flats)
1 - 10 Fretherne Chambers, Fretherne Road, Welwyn Garden City, AL8 6NY
Received 22 May 2014
Decided - Refused6/2022/0935/COND
Submission of details pursuant of condition 3 (landscape plan) on planning permission 6/2020/1588/FULL
48 Bradmore Way Brookmans Park Hertfordshire AL9 7QX
Received 20 Apr 2022
Decided - Granted6/2021/1455/COND
Submission of details pursuant to conditions 2 (landscape works), 7 (car parking allocation) and 8 (cycle parking) on planning permission 6/2017/1242/FULL
2 St Albans Road East Hatfield AL10 0HE
Received 10 May 2021
Decided - Granted6/2025/2039/EM
Removal of existing hedgerow to the front and one side of the property and replace with ever-green hedge Ligustrum hedge or similar type subject to availability
31 Turmore Dale Welwyn Garden City AL8 6HT
Received 24 Sept 2025
Decided - Granted6/2019/1777/PN8
Prior approval for the erection of a single storey rear extension measuring 3.5m in depth, 2.9m in height and 2.9m to the eaves
6 Whitethorn Welwyn Garden City Herts AL7 3EX
Received 18 Jul 2019
Decided - Granted6/2018/0782/HOUSE
Erection of a single storey rear extension and front porch canopy
26 Coulter Close Cuffley Potters Bar EN6 4RR
Received 22 Mar 2018
Decided - Refused6/2024/2390/HOUSE
Erecting a single storey rear extension incorporating a flat roof roof-light and a pitch roof dormer to the existing double storey rear extension with alterations to existing gable roof and rear windows
10 Ayot Green Ayot St Peter Welwyn AL6 9AB
Received 17 Dec 2024
Decided - Granted6/2017/1376/HOUSE
Erection of single storey and part two storey rear extension, with erection of new rear outbuildings following demolition of existing rear outbuilding
127 Thistle Grove Welwyn Garden City AL7 4AG
Received 26 Jun 2017
Decided - Granted6/2022/1517/HOUSE
Erection of a single storey side extension to the main house and the addition of a first floor, dormers and a side extension to the existing detached garage to form an annex
40 Great North Road Welwyn AL6 0PX
Received 29 Jun 2022
Decided - Refused6/2017/2631/EM
Installation of 2 front dormers, 1 rear dormer, 2 rear rooflights and 1 side window to facilitate loft conversion together with removal of chimney stack
41 Woodhall Lane Welwyn Garden City AL7 3TB
Received 10 Nov 2017
Decided - Granted6/2020/1858/LAWP
Certificate of lawfulness for the erection of a single storey rear extension and amendments to ground floor fenestration
62 Broomhills Welwyn Garden City AL7 1RD
Received 28 Jul 2020
Decided - Granted6/2017/0641/PN8
Prior approval for the erection of a single storey rear extension measuring 4.278m in depth, 3.8m in height and 3m to the eaves.
9 Parsonage Road Welham Green Hatfield AL9 7NA
Received 29 Mar 2017
Decided - Granted6/2022/1668/LB
Listed building consent for alterations to roof and chimneys.
26 High Street Welwyn Hertfordshire AL6 9EQ
Received 14 Jul 2022
Decided - Granted6/2021/3416/FULL
Erection of detached dwelling with a detached garage and a detached outbuilding and associated landscaping works, following the demolition of existing dwelling.
Wood Farm Harmer Green Lane Digswell Welwyn AL6 0AP
Received 7 Dec 2021
Decided - Granted6/2021/3290/FULL
Erection of 4 dwellings (Use Class C3) with associated access, parking, landscaping and site infrastructure
Land between The Manor House and Whitehall Field Cottage Essendon Hill Essendon Hertfordshire AL9 6AJ
Received 19 Nov 2021
Decided - Granted6/2025/0764/FULL
Redevelopment of the site to include the erection of 7 x 3-bedroom dwellings following the demolition of existing buildings
Land at Great North Road Stanborough Welwyn Garden City AL8 7TQ
Received 23 Apr 2025
Under Consultation6/2026/1718/TC
1 x Lawson cypress to remove to ground level Remove as tree in severe decline 1 x Lawson cypress hedge to remove to ground level Remove as hedge is dead 1 x Amelanchier to remove to ground level Remove as tree is dead
125 Handside Lane Welwyn Garden City AL8 6TA
Received 29 Sept 2026
Decided - Withdrawn6/2024/0349/EM
Erection of a single storey side extension, part single, part double storey rear extension and replacement garage
16 Guessens Road Welwyn Garden City AL8 6QR
Received 22 Feb 2024
Decided - Withdrawn6/2016/1444/HOUSE
Erection of single storey rear extension following demolition of conservatory and single storey side extension
7 Aspen Way, Welwyn Garden City, AL7 1HR
Received 18 Jul 2016
Decided - Granted6/2023/0799/ADV
Installation of 4 internally illuminated aluminium totem signs within the hard/soft landscape area
H R Owen Mosquito Way Hatfield AL10 9WN
Received 13 Apr 2023
Decided - Withdrawn6/2026/0421/HOUSE
Erection of a first floor side extension
78 Hazel Grove Hatfield AL10 9DZ
Received 6 Mar 2026
Decided - Refused6/2025/1049/EMT
Removal of lime tree as tree is too tall and overhanging, affecting light to garden and neighbours gardens
16 Marley Road Welwyn Garden City AL7 4BS
Received 3 Jun 2025
Decided - GrantedN6/2014/0394/DS
Discharge of condition 2 (Hard & Soft Landscaping) of planning permission N6/2013/2658/S73A
216A Knella Road, Welwyn Garden City, AL7 3NW
Received 21 Feb 2014

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