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

39,607Searchable applications

344Recorded as pending

86%Approval rate · 33,152 approved or refused records

4,742Refused applications

28,410 approved · 4,742 refused · 2,168 withdrawn. Received dates in our records: 29 Apr 1948 to 21 Oct 2026. Most recent record check: 27 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 Counts reflect the last collected status; some records may be out of date.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

Decided6/2026/1280/TC
T1- muti-stemmed Oak tree to lift by 4 metres and cut back by 2-3 metres the long lateral on the property side by 3 metres over the grounds/pathway. T2-a row of 7 Beech trees to lift to 4 metres and cut back by 2-3 metres for light and maintenance as they are overgrowing the building.
110 Woodside House Bridge Road Welwyn Garden City AL8 6UL
Received 21 Jul 2026
Decided - Granted6/2020/0616/EMT
Reduce 2 x Leyland Cypress Trees [G1] by 5m Install 2 supplemental support cables in group of 2 x Leyland Cypress Trees [G1]
33 Digswell Road Welwyn Garden City AL8 7PB
Received 4 Mar 2020
Decided - Granted6/2020/2288/HOUSE
Erection of replacement metal mesh balustrading to front and erection of 1800mm high timber close boarded fence.
26 Pentley Park Welwyn Garden City AL8 7SB
Received 8 Sept 2020
Decided - GrantedW6/2004/0907/EM
ERECTION OF CONSERVATORY.
24 Great Ganett, Welwyn Garden City, AL7 3DE
Received 15 Jun 2004
Decided - GrantedS6/2013/0539/FP
Change of use from A1 (Retail) to a combination of A1 and D1 (Medical and Health Services) and alterations to the north elevation
Unit 1, Pets at Home Ltd, Oldings Corner, HATFIELD, AL9 5JY
Received 14 Mar 2013
Decided - GrantedS6/2013/2185/FP
Erection of detached dwelling following demolition of existing
150 Brookside Crescent Cuffley Potters Bar EN6 4QL
Received 21 Oct 2013
Decided - RefusedS6/2004/0977/FP
ERECTION OF SINGLE STOREY SIDE EXTENSION.
11 Swanland Road North Mymms Hatfield AL9 7TG
Received 25 Jun 2004
Decided6/2019/1820/TC
Fell 1x Oak Tree
20 Roundwood Drive Welwyn Garden City AL8 7JZ
Received 24 Jul 2019
Decided - Granted6/2021/3127/HOUSE
Conversion of loft to habitable use to include 1 x front dormer
25 Dixons Hill Close Welham Green Hatfield AL9 7EF
Received 2 Nov 2021
Decided - Refused6/2020/2122/PN8
Single storey rear extension with flat roof and fenestration details to rear elevation.
22 The Avenue Welwyn AL6 0PP
Received 21 Aug 2020
Decided - GrantedW6/2007/0535/EM
ERECTION OF A FIRST FLOOR SIDE EXTENSION AND SINGLE STOREY REAR EXTENSION
13 Beehive Lane, Welwyn Garden City, AL7 4BB
Received 2 Apr 2007
Decided - Granted6/2017/0185/ADV
Installation of 4 fascia signs: 1x internally illuminated 3x non-illuminated on warehouse building.
Distribution Centre Bessemer Road Welwyn Garden City AL7 1HU
Received 1 Feb 2017
Decided - Granted6/2016/2135/PN8
Prior approval for a single storey rear extension measuring 3.7m. in depth, 3.57m. in height and 2.45m. to the eaves
64 Chelwood Avenue Hatfield AL10 0RE
Received 12 Oct 2016
Decided - Withdrawn6/2024/2356/COND
Submission of details pursuant to condition 2 (Landscape) on planning permission 6/2024/1342/RM
Land to the north east of King George V Playing Fields Northaw Road East Cuffley EN6 4RD
Received 9 Dec 2024
Decided - GrantedN6/2008/1860/TP
REDUCE CROWN BY 30% OF OAK TREE T2 COVERED BY TPO 225
5A Roundabout Lane Welwyn AL6 0TH
Received 27 Sept 2008
Decided - Granted6/2018/1130/EM
Erection of single storey side and rear extension, including alterations to openings
28 Brockswood Lane Welwyn Garden City AL8 7BG
Received 27 Apr 2018
Decided - GrantedS6/2009/0360/FP
APPLICATION FOR 6 MONTH TEMPORARY PERMISSION FOR USE OF LEVEL 6 OF MULTI-STOREY CAR PARK FOR USE AS CAR BOOT SALE ON SUNDAY MORNINGS
CAR PARK LEVEL 6, THE GALLERIA, COMET WAY, HATFIELD, HERTFORDSHIRE, AL10 0XR
Received 19 Feb 2009
Decided - Granted6/2024/2337/HOUSE
Erection of a single storey rear extension, garage conversion with alterations to fenestration and the retention of rooflight installed in the front elevation
5 Tomlinson Court Welwyn AL6 9GD
Received 4 Dec 2024
Decided - Granted6/2021/0148/HOUSE
Erection of a single storey rear extension.
4 Dellsome Lane Welham Green Hatfield AL9 7NF
Received 19 Jan 2021
Decided - Granted6/2018/1115/HOUSE
Erection of single storey side and rear extension, including alterations to openings
28 Brockswood Lane Welwyn Garden City AL8 7BG
Received 30 Apr 2018
Decided - GrantedN6/2009/2597/FP
ERECTION OF SINGLE STOREY REAR EXTENSION AND GARAGE CONVERSION
33 STIRLING WAY, WELWYN GARDEN CITY, HERTFORDSHIRE, AL7 2QA
Received 26 Nov 2009
Decided - WithdrawnN6/2013/2022/TP
Fell to ground level Goldcrest Conifer covered by TPO130 T1
Quince Cottage 10 Wendover Lodge Church Street Welwyn AL6 9LR
Received 17 Sept 2013
Decided - GrantedN6/2014/0365/TC
Reduce One Magnolia and One Maple tree by 33%
76 Brockswood Lane, Welwyn Garden City, AL8 7BQ
Received 13 Feb 2014
Decided - Granted6/2016/1754/FULL
Conversion of garage to habitable accommodation with alterations to front elevation and conversion of one bedroom flat to a two bedroom flat
13A Northaw Road East, Cuffley, EN6 4LU
Received 26 Aug 2016

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.
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Published 16 Jul 2026Updated 13 Sept 2026
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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.
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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.
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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