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

30,478Searchable applications

303Recorded as pending

87%Approval rate · 25,356 approved or refused records

3,343Refused applications

22,013 approved · 3,343 refused · 1,621 withdrawn. Received dates in our records: 29 Apr 1948 to 13 Oct 2026. Most recent record check: 18 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2024/2343/EM
Installation of heat pump at rear of property
10 High Oaks Road Welwyn Garden City AL8 7BH
Received 4 Dec 2024
Decided6/2023/2521/TC
T1 - Cherry tree - Fell to ground level and grind out stump due to damage to fence and wall which need replacing
1 Scholars Mews Welwyn Garden City AL8 7JQ
Received 19 Dec 2023
Decided - Granted6/2021/3086/VAR
Variation of condition 3 (approved plans) on planning permission 6/2020/3227/HOUSE to alter fenestration.
150 Salisbury Road Welwyn Garden City AL7 3SA
Received 28 Oct 2021
Decided - Granted6/2016/2237/EM
Reduce Hornbeam tree by 10ft and remove overhanging branch plus remove three branches on Oak tree
14 Mandeville Rise Welwyn Garden City AL8 7JU
Received 11 Oct 2016
Decided - Granted6/2015/1980/EM
Fell Birch tree.
22 Templewood, Welwyn Garden City, AL8 7HX
Received 22 Sept 2015
Decided - Granted6/2016/0746/TPO
Reduce crown of Copper Beech tree by 20% to previous cuts - Conservation Area
3 Mandeville Rise, Welwyn Garden City, AL8 7JT
Received 18 Apr 2016
Decided - Granted6/2017/0666/TPO
Reduction of 2 x lime trees by 40% - Conservation Area.
34 Blakemere Road Welwyn Garden City AL8 7PJ
Received 3 Apr 2017
Decided - Granted6/2026/0217/EM
Replacement doors and windows
232 Daniells Welwyn Garden City AL7 1QQ
Received 6 Feb 2026
Decided - Granted6/2025/0605/HOUSE
Erection of a single storey rear extension, porch to front, and changes to fenestration
8 Bracken Lane Welwyn AL6 0RB
Received 31 Mar 2025
Decided - Refused6/2021/3539/COND
Submission of details pursuant to condition 2 (traffic and commercial/industrial noise) on planning application 6/2019/1452/MAJ
26 Stonehills Welwyn Garden City AL8 6NA
Received 23 Dec 2021
Decided - Granted6/2023/2313/EM
Erection of single storey side extension with pitched roof
7B Salisbury Road Welwyn Garden City AL7 3RR
Received 16 Nov 2023
Decided - GrantedN6/2014/2529/TC
Reduce Yew tree to 6ft and remove Thuja Conifer tree
7 The Valley Green, Welwyn Garden City, AL8 7DQ
Received 18 Nov 2014
Decided - GrantedN6/2014/1695/FP
Garage conversion including raised flat roof and first floor side window
3 Coneydale, Welwyn Garden City, AL8 7RX
Received 25 Jul 2014
Decided - Granted6/2024/1942/HOUSE
Erection of a single storey rear extension with roof lantern and part garage conversion which will be linked to the main dwelling
37 Crawford Road Hatfield AL10 0PF
Received 9 Oct 2024
Decided6/2020/0445/TC
Fell 1 x Norway Spruce tree (T1) Fell 1 x Crab Apple tree (T2) Reduce 1 x Beech tree (T3) to 12 ft
13 Reddings Welwyn Garden City AL8 7LA
Received 17 Feb 2020
Decided6/2018/2292/TPO
Fell 1x Poplar tree and repollard 2x Willow trees - covered by conservation area
5 Beehive Green Welwyn Garden City AL7 4BE
Received 6 Sept 2018
Decided - GrantedS6/2013/1725/FP
Erection of single storey extension to front elevation
The Annexe 2 The Drive Brookmans Park Hatfield AL9 7BD
Received 8 Aug 2013
Decided - GrantedS6/2014/2169/DS
Approval of details reserved by condition 4 (remediation) and 5 (soft landscaping) of S6/2014/1101/FP
Garages at, Roe Hill Close, High Dells, Hatfield, AL10 9JE
Received 2 Oct 2014
DecidedN6/2014/2544/TN
Installation of 1x DSLAM equipment cabinet
Mill Close, S/O 33 Lemsford Village, Welwyn Garden City, AL8 7TR
Received 19 Nov 2014
Decided - Granted6/2020/1010/EM
Erection of shed
19 Longcroft Lane Welwyn Garden City AL8 6EB
Received 5 May 2020
Decided - Granted6/2016/0327/EM
Replacement of paved drive with block paving
8 Stanborough Green, Welwyn Garden City, AL8 6XG
Received 9 Feb 2016
Decided - Granted6/2024/2428/HOUSE
Erection of a single storey rear extension
46 Langstone Ley Welwyn Garden City AL7 1FQ
Received 24 Dec 2024
Decided - Granted6/2025/1663/LB
Internal alterations to remove partition stud walls and create a shower room and utility room
10 Park Street Hatfield AL9 5AX
Received 1 Aug 2025
Decided - Granted6/2017/1019/LAWP
Certificate of Lawfulness for the replacement of rear window and door with patio sliding or bi-folding doors as well as installation of velux windows in extension roof
16 Norman Road Welwyn AL6 9JP
Received 11 May 2017

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