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

23,594Searchable applications

313Recorded as pending

86%Approval rate · 19,283 approved or refused records

2,695Refused applications

16,588 approved · 2,695 refused · 1,216 withdrawn. Received dates in our records: 5 Jan 2005 to 2 Oct 2026. Most recent record check: 14 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2019/2569/HOUSE
Erection of two storey rear extension with installation of 1x roof light
35 Brockswood Lane Welwyn Garden City AL8 7BE
Received 14 Oct 2019
Decided - Withdrawn6/2018/1957/HOUSE
Erection of first floor rear extension and installation of rear roof solar panels
42 Digswell Rise Welwyn Garden City AL8 7PW
Received 25 Jul 2018
Decided - Granted6/2025/2439/COND
Submission of details pursuant to condition 9 (Energy Efficiency) on planning permission 6/2024/1323/MAJ
Premier Inn Lemsford Road Hatfield AL10 0DA
Received 21 Nov 2025
Decided - Refused6/2024/0302/HOUSE
Erection of a two storey side extension
38 Mount Way Welwyn Garden City AL7 4LB
Received 13 Feb 2024
Decided - Granted6/2024/2256/EM
Installation of solar panels
35 Brockswood Lane Welwyn Garden City AL8 7BE
Received 25 Nov 2024
Decided6/2020/2019/TC
Reduce 1 x Oak by 30% and lift to 4.5m
17 Woodland Rise Welwyn Garden City AL8 7LJ
Received 12 Aug 2020
Decided - Granted6/2019/2736/HOUSE
Erection of two storey front, two storey side extension, two single storey side extensions, loft conversion and new access with front boundary treatment
2 The Ridgeway Cuffley Potters Bar EN6 4AR
Received 30 Oct 2019
Decided - Refused6/2024/0296/FULL
Erection of a bungalow following the demolition of existing barn
22 The Avenue Welwyn AL6 0PP
Received 13 Feb 2024
Decided - Granted6/2019/3130/EM
Erection of single two storey rear extension following the demolition of outside storage with installation of dormer to facilitate loft conversion and alterations to fenestration's
41 Valley Road Welwyn Garden City AL8 7DH
Received 11 Dec 2019
Decided - Granted6/2022/2002/EM
Installation of solar panels on east-south-east facing roof.
11 The Vineyard Welwyn Garden City AL8 7PY
Received 30 Aug 2022
Decided - Split6/2019/2018/COND
Submission of details pursuant to condition 11 (highway improvement) and 12 (bin provision) on planning permission 6/2017/0848/MAJ
Entech House London Road Woolmer Green SG3 6JE
Received 13 Aug 2019
Decided - Granted6/2022/0829/EMT
T1 Reduce 45ft Oak tree by 30%
347 Knightsfield Welwyn Garden City AL8 7NB
Received 5 Apr 2022
Decided6/2025/2548/TC
Cherry Tree - to fell
St Lawrence Old Churchyard Hill Farm Lane Welwyn AL6 9BX
Received 9 Dec 2025
Decided - Granted6/2021/0592/HOUSE
Erection of a loft conversion
111 Eddington Crescent Welwyn Garden City AL7 4SX
Received 24 Feb 2021
Decided - Granted6/2022/1761/PN8
Prior approval for the erection of a single storey rear extension measuring 4m in depth, 3.29m in height and 3m to the eaves.
21 Fern Dells Hatfield AL10 9HX
Received 27 Jul 2022
Decided - Granted6/2026/0096/HOUSE
Erection of ground and first floor rear extensions
7 Moorend Welwyn Garden City AL7 4QL
Received 22 Jan 2026
Decided - Granted6/2018/2939/EM
Fell 2x T1 Conifer Reduce lower limbs 1x T2 Conifer Reduce and Shape 1x T3 Beech Tree by 2m Reduce and shape 1x T4 Hornbeam by up to 2m
8 Sherrardspark Road Welwyn Garden City AL8 7JP
Received 15 Nov 2018
Decided - Granted6/2017/2966/HOUSE
Erection of part single part two storey side and rear extensions and alterations to roof
95 Brookmans Avenue Brookmans Park Hatfield AL9 7QG
Received 22 Dec 2017
Decided - Granted6/2026/0631/EM
Erection of single storey side and rear extensions
10 Pinewood Welwyn Garden City AL7 3TL
Received 9 Apr 2026
Decided - Granted6/2023/1096/HOUSE
Erection of part single storey rear extension, part two storey rear extension and single storey side extension, following demolition of existing garage and ground floor extension, with alterations to openings
72 Pentley Park Welwyn Garden City Hertfordshire AL8 7SG
Received 24 May 2023
Decided - Granted6/2018/0900/EM
Fell 1 x Apple tree (T1), 1 x Conifer tree (T2) and 1 x Cherry tree (T3) to ground level
32 Brockswood Lane Welwyn Garden City AL8 7BG
Received 5 Apr 2018
Decided - Refused6/2024/0307/VAR
Variation of condition 1 (Time Limit for works to fencing) on planning permission 6/2023/1277/FULL
The Beehive Beehive Lane Welwyn Garden City AL7 4BW
Received 15 Feb 2024
Decided - Granted6/2018/3055/EM
Erection of a single storey rear extension and alterations to existing flat roof
395 Knightsfield Welwyn Garden City AL8 7LY
Received 30 Nov 2018
Decided - Granted6/2018/1506/EM
Erection of a single storey rear extension to include alterations to openings and insertion of roof lantern to existing rear flat roof
26 Elmwood Welwyn Garden City AL8 6LE
Received 4 Jun 2018

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