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

40,297Searchable applications

283Recorded as pending

86%Approval rate · 33,821 approved or refused records

4,819Refused applications

29,002 approved · 4,819 refused · 2,219 withdrawn. Received dates in our records: 29 Apr 1948 to 29 Oct 2026. Most recent record check: 9 Nov 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2022/0334/HOUSE
Two single storey rear extensions, office roof raised and new roof over the dining room bay window
27 Attimore Road Welwyn Garden City AL8 6LQ
Received 14 Feb 2022
Decided - GrantedS6/2015/1299/FP
Erection of single storey rear and front extensions to the existing garage and pitched roof over front canopy
8 Grangewood Little Heath Potters Bar EN6 1SH
Received 19 Jun 2015
Decided - GrantedW6/2015/0868/EM
Formation of hardstanding
2 Malmsdale Welwyn Garden City AL8 7QN
Received 24 Apr 2015
Decided - Granted6/2025/0894/EMT
English Oak to reduce by 40%.
4 Meadow Green Welwyn Garden City AL8 6SS
Received 15 May 2025
Decided - GrantedN6/2007/1353/FP
Erection of detached single storey dwelling and change of use of existing outbuilding to garage
Outer Walled Garden Danesbury Park Road Welwyn AL6
Received 12 Sept 2007
Decided - Granted6/2018/2334/EM
Reduce oak tree TPO 757 (2018) by 10%
116 Howlands Welwyn Garden City AL7 4RG
Received 12 Sept 2018
Decided - Granted6/2025/0216/HOUSE
Erection of single storey rear extension following demolition of conservatory, single storey front extension and two storey side extension
2 Astwick Avenue Hatfield AL10 9LA
Received 10 Feb 2025
Decided - RefusedW6/2008/0561/EM
ERECTION OF FIRST FLOOR REAR AND SINGLE STOREY SIDE EXTENSION
16 ROUNDWOOD DRIVE, WELWYN GARDEN CITY, HERTSFORDSHIRE, AL8 7JZ
Received 12 Mar 2008
Decided - Granted6/2024/1892/HOUSE
Erection of a single storey side extension and front porch with addition of side gate and fencing
120 Boundary Lane Welwyn Garden City AL7 4DL
Received 2 Oct 2024
Decided - Granted6/2018/2771/HOUSE
Erection of single storey rear extension
13 Sandpit Road Welwyn Garden City AL7 3TW
Received 26 Oct 2018
Decided - Withdrawn6/2025/2083/HOUSE
Erection of fence
30 Honeysuckle Gardens Hatfield AL10 8PJ
Received 1 Oct 2025
Decided - Granted6/2023/2305/HOUSE
Erection of part first floor rear extension with rear 3m infill extension
6 Puttocks Close Welham Green Hatfield AL9 7LN
Received 15 Nov 2023
Decided - Granted6/2020/2578/HOUSE
Erection of outbuilding
Gable House Warren Wood Kentish Lane Hatfield AL9 6JG
Received 25 Sept 2020
Decided - Granted6/2020/1484/HOUSE
Erection of single storey rear extension
11 Selwyn Drive Hatfiled AL10 9NH
Received 9 Jun 2020
Decided - GrantedS6/2007/0812/FP
ERECTION OF REAR CONSERVATORY.
139 Tolmers Road Cuffley Potters Bar EN6 4JW
Received 29 May 2007
Decided - GrantedN6/2004/0685/FP
CHANGE OF USE OF AMENITY LAND TO RESIDENTAL USE.
259 Handside Lane Welwyn Garden City AL8 6TF
Received 6 May 2004
Decided - Granted6/2024/1603/EMT
T1 Conifer row to reduce in height by approx 4m (to the height of the yew tree), and to remove two stems on the end tree as they are overhanging the neighbours property.
35 Bridge Road Welwyn Garden City AL8 6UG
Received 21 Aug 2024
Decided - Granted6/2022/0420/LAWP
Erection of front porch
23 The Cloisters Welwyn Garden City Hertfordshire AL8 6DU
Received 23 Feb 2022
Decided - Withdrawn6/2018/3004/EM
Reduce by 50% Line of Leyland Cypress trees and trim sides
39 Moorlands Welwyn Garden City AL7 4PY
Received 23 Nov 2018
Decided - GrantedN6/2008/2483/TP
CUT BACK CROWN TO PREVIOUS CUTS AND TO BALANCE CROWN OF OAK TREE T3 COVERED BY TPO 442
5B Roundabout Lane Welwyn AL6 0TH
Received 23 Dec 2008
Decided - Granted6/2018/1741/HOUSE
Erection of single storey rear extension
38 Woods Avenue Hatfield AL10 8NA
Received 2 Jul 2018
Decided - GrantedW6/2004/0991/EM
ERECTION OF REAR CONSERVATORY
70 Boundary Lane, Welwyn Garden City, AL7 4DP
Received 29 Jun 2004
Decided - GrantedN6/2005/1419/TP
WORK TO TREES (3 SYCAMORE AND 1 HORNBEAM) COVERED BY TPO 260 G5
8 Mornington Digswell Welwyn AL6 0AJ
Received 14 Nov 2005
Decided - GrantedS6/2005/1543/LU
CERTIFICATE OF LAWFULNESS (PROPOSED) FOR SINGLE STOREY REAR EXTENSION
10A Hanyards Lane Cuffley Potters Bar EN6 4AT
Received 14 Dec 2005

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