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

40,146Searchable applications

300Recorded as pending

86%Approval rate · 33,676 approved or refused records

4,802Refused applications

28,874 approved · 4,802 refused · 2,208 withdrawn. Received dates in our records: 29 Apr 1948 to 26 Oct 2026. Most recent record check: 2 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2020/1196/EM
Erection of outbuilding following demolition of existing shed
7 Parkway Close Welwyn Garden City AL8 6HJ
Received 28 May 2020
Decided6/2021/3138/TC
Removal of trees in the front garden: - 15ft palm tree roots which could cause damage to the property (building structure); - 20 ft magnolia tree
58 Lemsford Lane Welwyn Garden City AL8 6YJ
Received 2 Nov 2021
Decided - Granted6/2022/0815/EM
Proposed installation of new ground floor window to match existing
250 Daniells Welwyn Garden City AL7 1QE
Received 4 Apr 2022
Decided - Refused6/2019/0605/HOUSE
Alteration to roof design
Just House Coopers Lane Northaw Potters Bar EN6 4NJ
Received 14 Mar 2019
Decided - GrantedW6/2012/2459/EM
Formation of vehicle hardstanding to front garden
260 Daniells, WELWYN GARDEN CITY, AL7 1QE
Received 23 Nov 2012
Decided - Granted6/2022/0901/HOUSE
Erection of two storey and single storey rear extension.
143 Blythway Welwyn Garden City AL7 1DN
Received 14 Apr 2022
Decided - GrantedN6/2004/0621/FP
ERECTION OF REAR CONSERVATORY
20 Rosedale Welwyn Garden City AL7 1DR
Received 26 Apr 2004
Decided - GrantedS6/2010/0190/DS
COMPLIANCE OF CONDITIONS
1 ST JOHNS SQUARE, ALDYKES, OFF BISHOPS RISE, HATFIELD, HERTFORDSHIRE, AL10 9QT
Received 12 Jan 2010
Decided - Granted6/2021/1031/HOUSE
Retrospective application for erection of front porch
4 Holly Road Woolmer Green SG3 6LL
Received 29 Mar 2021
Decided - Granted6/2023/0084/TPO
English Oak - TPO 1047 (2022) T1. Prune two lowest branches on the south side of the tree without unduly distorting the shape, by 14 ft and 10 ft
40 Huggins Lane Welham Green Hatfield AL9 7LE
Received 12 Jan 2023
Decided6/2021/2692/TC
Fell 2 x Sycamore trees covered by conservation area
26 Beehive Green Welwyn Garden City AL7 4BG
Received 17 Sept 2021
Decided - Granted6/2018/0546/ADV
Installation of 1 x internally illuminated fascia sign, 1 x non-illuminated hoarding sign and 1 x non-illuminated timber sign
ASDA Hatfield 98 Town Centre Hatfield AL10 0JP
Received 23 Feb 2018
Decided - Granted6/2021/2778/EMT
1 x Oak to reduce 2 low main limbs over neighbours summer house by 2m
24 Monks Rise Welwyn Garden City AL8 7NF
Received 27 Sept 2021
Decided - Refused6/2017/0253/PN8
Prior approval for the erection of single storey rear extension measuring 6m in depth, 3m in height and 3m to the eaves
9 Little Lake Welwyn Garden City AL7 4RT
Received 1 Feb 2017
Decided - GrantedN6/2009/1280/TE
FELLING OF TWO HAWTHORN TREES TO GROUND LEVEL
ADJACANT TO, 94 PARKWAY, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 6HL
Received 25 Jun 2009
Decided - GrantedS6/2004/1090/FP
ERECTION OF TWO STOREY SIDE EXTENSION AND ALTERATIONS
9A Brookside Hatfield AL10 9RR
Received 13 Jul 2004
Decided - Refused6/2020/3225/COND
Submission of details pursuant to conditions 1 (materials) 2 (crown roof), 3 (hard and soft landscape), 4 (landscaping seasons) and 5 (glazing) on planning permission 6/2020/1767/FULL
154 Tolmers Road Cuffley Potters Bar EN6 4JR
Received 1 Dec 2020
Decided - Granted6/2022/0792/EM
Change of front door - from current white PVC door to white wooden door
78 Pentley Park Welwyn Garden City AL8 7SG
Received 31 Mar 2022
Decided - Granted6/2021/2160/HOUSE
Erection of a part two storey rear and single storey side extension.
181 Howlands Welwyn Garden City AL7 4RL
Received 16 Jul 2021
Decided - Granted6/2021/1120/EMH
Installation of rooflights to rear elevation
71 Mill Green Road Welwyn Garden City AL7 3UX
Received 6 Apr 2021
Decided - GrantedW6/2004/0463/EM
ERECTION OF REAR CONSERVATORY
4 Little Rivers, Welwyn Garden City, AL7 1QJ
Received 25 Mar 2004
Decided - GrantedS6/2013/0992/LB
Replacement windows and doors
The Old Cottage Green Lanes Hatfield AL10 9BH
Received 8 May 2013
Decided - GrantedN6/2004/1101/TP
WORK TO TREES G1 (LAWSON CYPRESS) COVERED BY TPO 169.
6 Whetstone Close Welwyn AL6 0QW
Received 16 Jul 2004
Decided - GrantedW6/2008/0640/EM
EXTENSION TO EXISTING HARDSTANDING ON FRONT DRIVE
23 WOODLAND RISE, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7LJ
Received 28 Mar 2008

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