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

40,295Searchable applications

322Recorded as pending

86%Approval rate · 33,786 approved or refused records

4,816Refused applications

28,970 approved · 4,816 refused · 2,217 withdrawn. Received dates in our records: 29 Apr 1948 to 29 Oct 2026. Most recent record check: 7 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2024/1632/TC
Conifer tree to fell. (Estate Management Application)
41 Digswell Park Road Welwyn Garden City AL8 7NW
Received 27 Aug 2024
Decided - Granted6/2024/1574/EM
Installation of hardstanding
29 Little Ganett Welwyn Garden City AL7 3DG
Received 19 Aug 2024
Decided - RefusedW6/2007/0316/EM
TWO STOREY REAR EXTENSION AND SINGLE STOREY SIDE EXTENSION.
5 Mandeville Rise, Welwyn Garden City, AL8 7JT
Received 27 Feb 2007
Decided - GrantedN6/2009/2433/LB
INTERNAL ALTERATIONS IN CONNECTION WITH REMODELLING THE INTERIOR LAYOUT AT FIRST FLOOR LEVEL TO FORMALISE SLEEPING ACCOMMODATION. MINOR INTERNAL ALTERATIONS AT GROUND FLOOR LEVEL AND RELOCATION OF FIRE ESCAPE STAIR AND ALTERATIONS TO FRONT ELEVATION
The Wellington 1 High Street Welwyn AL6 9LZ
Received 12 Nov 2009
Decided - GrantedS6/2010/0274/NM
NON MATERIAL AMENDMENT OF PLANNING PERMISSION S6/2009/2382/FP COMPRISING ALTERATIONS TO DOORS AND WINDOWS TO REAR ELEVATION
67 CALDER AVENUE, BROOKMANS PARK, HATFIELD, HERTFORDSHIRE, AL9 7AJ
Received 19 Feb 2010
Decided - Granted6/2022/1900/VAR
Variation of condition 16 (drawing numbers) on planning permission 6/2019/1172/FULL
Units 1, 1a and 3 Swallow End, Welwyn Garden City, AL7 1JA
Received 16 Aug 2022
Decided - GrantedS6/2007/1726/FP
ERECTION OF TWO STOREY REAR EXTENSION
38 Briars Lane Hatfield AL10 8ET
Received 15 Nov 2007
Appeal Decided - Dismissed6/2025/0583/HOUSE
Erection of a first floor side extension
125 Dawley Welwyn Garden City AL7 1EB
Received 27 Mar 2025
Decided - GrantedS6/2013/0945/FP
Erection of single storey rear extension
12 Holme Close Hatfield AL10 9LQ
Received 1 May 2013
Decided - GrantedS6/2006/0330/FP
REPLACEMENT OF EXISTING WINDOWS AND CLADDING PANELS TO TWO HALLS OF RESIDENCE
University of Hertfordshire College Lane Hatfield AL10 9AB
Received 16 Mar 2006
Decided - GrantedW6/2009/2121/EM
FORMATION OF HARDSTANDING
28 HYDE VALLEY, WELWYN GARDEN CITY, HERTFORDSHIRE, AL7 4NA
Received 29 Sept 2009
Decided - Withdrawn6/2019/0030/FULL
Erection of a new dwelling and replacement garage
3 Hangmans Lane Welwyn AL6 0TJ
Received 7 Jan 2019
Decided - GrantedW6/2013/2204/EM
Installation of solar panels on rear roof slope
39 Barleycroft Road, Welwyn Garden City, AL8 6JX
Received 16 Oct 2013
Decided - Granted6/2025/2064/EM
Installation of EV charger
24 Melbourne Court, Welwyn Garden City, AL8 6LL
Received 26 Sept 2025
Decided - Granted6/2018/2632/COND
Submission of details pursuant to condition 1 (scheme of secure cycle parking) on planning permission 6/2018/1975/FULL
29 Brownfields Welwyn Garden City AL7 1AN
Received 15 Oct 2018
Decided - Granted6/2024/1025/HOUSE
Erection of a single storey rear extension
1 Rowan Walk Hatfield AL10 8SX
Received 3 Jun 2024
Decided - GrantedN6/2004/1071/FP
ERECTION OF REAR CONSERVATORY
7 Dicket Mead Welwyn AL6 9NX
Received 15 Jul 2004
Decided - GrantedN6/2009/0224/TC
REMOVAL OF APPLE TREE FROM REAR GARDEN
131 HANDSIDE LANE, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 6TA
Received 29 Jan 2009
Decided - GrantedW6/2007/1320/EM
ERECTION OF A SINGLE STOREY SIDE EXTENSION
3 Great Ganett, Welwyn Garden City, AL7 3DA
Received 5 Sept 2007
Decided - Granted6/2017/0016/PN15
Prior approval for the installation of a POGONA cabinet measuring 1230x400x1032mm located at ground level, installation of a 13.7m monopole with Holophane Vmax, swap out on a like for like basis of the existing antennas, installation of additional mast head amplifier’s (MHA’s) and associated development thereto following the removal of the existing lamppost
Lampost no.18, Panshanger, Welwyn Garden City, AL7 2BQ
Received 5 Jan 2017
Decided - GrantedN6/2009/2230/TE
REMOVAL OF FALSE ACACIA TREE LOCATED IN FRONT GARDEN
10 WALDEN ROAD, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7PF
Received 6 Oct 2009
Decided - GrantedW6/2009/2025/EM
ERECTION OF SINGLE STOREY SIDE EXTENSION FOLLOWING REMOVAL OF TIMBER OUTBUILDING
26 KIRKLANDS, WELWYN GARDEN CITY, HERTS, AL8 7RD
Received 16 Sept 2009
Decided - Granted6/2017/0175/COND
Approval of details reserved by condition 6 (Tree Retention & Removal) on planning permission N6/2012/1778/OP
The Frythe, 5 Digswell Hill, WELWYN, AL6 9AR
Received 24 Jan 2017
Decided - Granted6/2018/0208/EM
Reduce 1 x Leyland Cypress by 12m height
10 Marsden Close Welwyn Garden City AL8 6YE
Received 23 Jan 2018

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