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

17,457Searchable applications

298Recorded as pending

86%Approval rate · 14,067 approved or refused records

1,931Refused applications

12,136 approved · 1,931 refused · 884 withdrawn. Received dates in our records: 5 Jan 2005 to 30 Sept 2026. Most recent record check: 11 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2026/1332/EMT
Fell a mature mulberry tree
3 Youngs Rise Welwyn Garden City AL8 6RT
Received 29 Jul 2026
Decided6/2020/1683/TC
Reduce 1 x Yew Tree [T1] 30% reduction and dead wood of the tree
5 Barleycroft Green Welwyn Garden City AL8 6JY
Received 13 Jul 2020
Decided - Granted6/2020/1041/COND
Submission of details pursuant to condition 1 (sample of materials) on planning permission 6/2020/0437/HOUSE
25 Pentley Park Welwyn Garden City AL8 7RT
Received 11 May 2020
Decided - Granted6/2025/0817/PN8
Prior approval for the erection of a single storey rear extension measuring 3.10m in height, 4.50m in depth and 2.5m to the eaves
14 Gorse Close Hatfield AL10 9DW
Received 29 Apr 2025
Decided6/2025/1666/TC
T1 Wild Cherry tree to reduce canopy and height by up to 2 metres
81 Valley Road Welwyn Garden City AL8 7DR
Received 4 Aug 2025
Decided - Granted6/2021/0840/HOUSE
Erection of single storey rear extension
53 Clover Way Hatfield AL10 9FN
Received 15 Mar 2021
Decided - Granted6/2025/1797/PN35
Prior approval for installation of a solar PV system comprising of 20 solar panels on the flat roof of the building
39 Woodland Rise Welwyn Garden City AL8 7LJ
Received 22 Aug 2025
Decided - Granted6/2024/2430/EMT
Cutting down/removing of a tree in our back garden
12 Katescroft Welwyn Garden City AL7 4DR
Received 24 Dec 2024
Decided - Granted6/2019/1013/EM
Replacement windows and front door
23 Coneydale Welwyn Garden City AL8 7RX
Received 26 Apr 2019
Decided - Granted6/2023/0573/LAWE
Certificate of lawfulness for the existing use of HMO (use class C4)
36 Haseldine Meadows Hatfield AL10 8HB
Received 14 Mar 2023
Decided - Granted6/2021/0572/FULL
Erection of a rear extension, elevational alterations, amendments to service yard layout and car park, installation of a cycle shelter and smoking shelter, installation of external plant and refrigeration equipment and associated works
30 Watchmead Welwyn Garden City AL7 1LT
Received 23 Feb 2021
Decided - Refused6/2026/0843/HOUSE
Formation of four dormers to front and a rear dormer to facilitate loft conversion
57 Briars Lane Hatfield AL10 8EX
Received 13 May 2026
Decided - Refused6/2021/0807/HOUSE
Demolition of conservatory, erection of part ground floor, part first floor extension, and conversion of existing garage into habitable space.
134 Longcroft Lane Welwyn Garden City AL8 6EN
Received 12 Mar 2021
Decided - Granted6/2022/1040/EMH
Proposed side extension and garage
7 Guessens Road, Welwyn Garden City, AL8 6QW
Received 4 May 2022
Decided - Withdrawn6/2021/3073/EMT
Crown reduction of 2 oaks by 30%.
9 Roundwood Drive, Welwyn Garden City, AL8 7JZ
Received 26 Oct 2021
Decided - Granted6/2019/0585/FULL
Erection of new teaching block, replacement tarmac play areas and additional parking provision
Stanborough School Lemsford Lane Welwyn Garden City AL8 6YR
Received 8 Mar 2019
Decided - Granted6/2021/0405/HOUSE
Erection of single storey rear extension
13 Youngs Rise Welwyn Garden City AL8 6RT
Received 9 Feb 2021
Decided - Granted6/2025/0559/EMT
1 x Oak tree and 1 x Sycamore tree 30% crown reduction and lifting of both crowns to 3.5m off the ground
13 Digswell Lodge Digswell Rise Welwyn Garden City AL8 7NU
Received 24 Mar 2025
Decided - Granted6/2022/0227/LAWP
Certificate of lawfulness for the erection of an outbuilding
Elm Cottage Great North Road Welwyn Garden City AL8 7TF
Received 1 Feb 2022
Decided - Granted6/2021/0093/HOUSE
Erection of single storey rear extension.
32 Holloways Lane Welham Green Hatfield AL9 7NP
Received 13 Jan 2021
Decided - Granted6/2021/2006/EMT
Reduce 2 x Oak trees by 30%
1 Reddings Welwyn Garden City AL8 7LA
Received 1 Jul 2021
Decided - Granted6/2022/1821/HOUSE
Erection of two storey front, first floor side and single storey, part two storey rear extension following the conversion of garage into habitable space
8 Starling Lane Cuffley Potters Bar Hertfordshire EN6 4JX
Received 3 Aug 2022
Decided - Granted6/2022/1975/EM
Erection of single storey rear extension, front porch and conversion of garage
110 Guessens Road Welwyn Garden City AL8 6RS
Received 24 Aug 2022
Decided - Granted6/2025/0720/EMT
Removing Dead Branches And Reducing Crown Of Oak Tree by 2m in height and 1.5m laterally on the south, east and west sides. App Ref To Council: 6/2025/0649/TC
13 Reddings Welwyn Garden City AL8 7LA
Received 16 Apr 2025

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