England · Local authority

Welwyn Hatfield planning applications

PlanningTrack collects planning applications and decisions from the public planning register of Welwyn Hatfield Borough Council. Search an address, application reference or proposal. Official Welwyn Hatfield website

Collected application statistics

Collected records · All available dates

35,415Searchable applications

331Recorded as pending

87%Approval rate · 29,499 approved or refused records

3,978Refused applications

25,521 approved · 3,978 refused · 1,842 withdrawn. Received dates in our records: 29 Apr 1948 to 16 Oct 2026. Most recent record check: 23 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2018/3061/HOUSE
Erection of a single storey front extension
94 Aldykes Hatfield AL10 8EE
Received 30 Nov 2018
Decided - Refused6/2024/0044/FULL
Change of use from amenity land to private residential driveway and extension to existing hard standing to add one parking space
18 Birds Close Welwyn Garden City AL7 4AR
Received 8 Jan 2024
Decided - Granted6/2019/1177/HOUSE
Hip to gable roof extension to facilitate loft conversion
45 Station Road Welham Green Hatfield AL9 7PF
Received 15 May 2019
Decided - Refused6/2021/0888/EM
Two storey side extension and changes to fenestration on existing rear elevation
6 Well Garth Welwyn Garden City AL7 3AF
Received 18 Mar 2021
Decided - Granted6/2016/2381/HOUSE
Erection of a single storey rear extension
38 Bell Lane, Brookmans Park, Hatfield, AL9 7AY
Received 10 Nov 2016
Decided - Granted6/2022/1929/FULL
Erection of a single storey rear conservatory to ground floor flat
365 Howlands Welwyn Garden City AL7 4HN
Received 17 Aug 2022
Decided - GrantedW6/2013/0131/EM
Erection of shed
22 Turmore Dale, WELWYN GARDEN CITY, AL8 6HS
Received 22 Jan 2013
Decided - Withdrawn6/2016/0888/HOUSE
Erection of two storey rear extension and first floor side extension
145 Boundary Lane, Welwyn Garden City, AL7 4EQ
Received 9 May 2016
Decided - Refused6/2024/1757/COND
Submission of details pursuant to condition 8 (material samples) & 31 (materials samples) on planning permission 6/2019/3024/MAJ
29 Broadwater Road Welwyn Garden City AL7 3BQ
Received 12 Sept 2024
Decided - Granted6/2017/0979/TPO
Fell Silver birch tree - Conservation Area
108 Handside Lane Welwyn Garden City AL8 6SY
Received 8 May 2017
Decided - Granted6/2024/2025/EM
Erection of front porch, garage conversion with alteration to fenestration and addition of driveway
38 Elm Gardens, Welwyn Garden City, AL8 6RY
Received 21 Oct 2024
Appeal Decided - Dismissed6/2017/0457/HOUSE
Erection of single storey rear extension following the demolition of existing store room.
44 Longlands Road Welwyn Garden City AL7 3PZ
Received 9 Mar 2017
Decided - Granted6/2023/1034/EM
Retrospective consent for conversion of garage to form habitable space, ground floor rear extension and erection of first floor extension above and to the rear of garage following the demolition of existing conservatory
24 Thistle Grove Welwyn Garden City AL7 4AN
Received 3 May 2023
Decided - Granted6/2026/0826/HOUSE
Part conversion of garage to form utility room with two rooflights within the roof
28 The Grove Brookmans Park AL9 7RN
Received 12 May 2026
Decided - Granted6/2016/0114/HOUSE
To rebuild an existing brick and timber, pitched roof shed.
20 Walden Road Welwyn Garden City AL8 7PF
Received 25 Jan 2016
Decided - Granted6/2025/2297/HOUSE
Erection of a single storey side extension and paving works
94 Thistle Grove Welwyn Garden City AL7 4AQ
Received 30 Oct 2025
Decided - WithdrawnN6/2009/0326/AG
STORAGE OF PLANT & MACHINERY REQUIRED FOR UPKEEP OF LAND
1 CHURCH COTTAGE, BIBBS HALL LANE, AYOT ST LAWRENCE, WELWYN, HERTFORDSHIRE, AL6 9BZ
Received 27 Feb 2009
Decided - GrantedW6/2008/1126/EM
ERECTION OF REAR CONSERVATORY
10 Newfields, Welwyn Garden City, AL8 6YT
Received 4 Jul 2008
Decided - Granted6/2025/0707/LAWP
Certificate of lawfulness for the erection of a wooden fence to enclose existing parking space in rear garden
11 Margery Wood Welwyn Garden City AL7 1UN
Received 14 Apr 2025
Decided - Granted6/2019/2632/EM
Alterations to openings to change window to garage doors
50 Sherrardspark Road Welwyn Garden City AL8 7LB
Received 21 Oct 2019
Decided - Refused6/2020/1906/HOUSE
Proposed single storey rear extension and first floor side extension with loft conversion and added dormers to front, side and rear.
10 Burleigh Way Cuffley Potters Bar EN6 4LJ
Received 3 Aug 2020
Decided - Granted6/2016/1063/HOUSE
Erection of ground floor rear extension and first floor side extension.
67 Woods Avenue, Hatfield, AL10 8QF
Received 31 May 2016
Decided - Granted6/2021/1024/FULL
Change of use of land from residential curtilage to equine use and from equine use to residential curtilage
The Cottage Foxes Lane Hatfield AL9 7BA
Received 29 Mar 2021
Decided - Refused6/2021/1670/PN22
Prior approval for change of use from retail store (A1) to restaurant (A3) and the installation of rear extraction flue.
20 Hall Grove Welwyn Garden City AL7 4PH
Received 25 May 2021

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

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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