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

40,250Searchable applications

321Recorded as pending

86%Approval rate · 33,746 approved or refused records

4,812Refused applications

28,934 approved · 4,812 refused · 2,213 withdrawn. Received dates in our records: 29 Apr 1948 to 29 Oct 2026. Most recent record check: 6 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 Counts reflect the last collected status; some records may be out of date.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 - GrantedS6/2015/0846/FP
Change of use from beauty salon (Sui Generis) to coffee shop (mixed A1/A3 use)
18 Station Road Cuffley Potters Bar EN6 4HT
Received 9 Apr 2015
DecidedN6/2008/1929/TC
WORKS TO TREE.
LAND ADJACENT TO 36 APPLECROFT ROAD, WELWYN GARDEN CITY, HERTFORDSHIRE
Received 9 Oct 2008
Decided - Granted6/2026/0930/EM
Erection of single storey rear extension
36 Coltsfoot Welwyn Garden City AL7 3HZ
Received 27 May 2026
Decided6/2018/1094/TPO
Fell 6 x Ash trees and 3 x Sycamore trees and remove stump - conservation area
41 Longcroft Lane Welwyn Garden City AL8 6EB
Received 26 Apr 2018
Decided - GrantedS6/2014/1903/LUP
Certificate of lawfulness for proposed 2no single storey side extensions
Woodhurst Cottage, Cattlegate Road, Northaw, Enfield, EN2 8AT
Received 27 Aug 2014
Decided - Granted6/2018/2589/FULL
Retention of change of use from B1 to Sui-Generis with opening hours Monday to Saturday 9:00 to 18:00
2 Ivy Cottage (Welwyn Luxury Beauty) Codicote Road Welwyn AL6 9NB
Received 9 Oct 2018
Decided6/2018/0217/TPO
Reduce 1 x Leyland Cypress 12m height – Conservation Area
10 Marsden Close Welwyn Garden City AL8 6YE
Received 23 Jan 2018
Decided - GrantedS6/2004/0089/FP
INSTALLATION OF SECURITY SHUTTER TO SHOP FRONT
23 Bradmore Green Brookmans Park Hatfield AL9 7QR
Received 15 Jan 2004
Decided - Granted6/2022/0911/LAWP
Erection of a single storey rear extension following garage conversion
36 Coltsfoot Welwyn Garden City Hertfordshire AL7 3HZ
Received 19 Apr 2022
Decided - GrantedS6/2008/0104/FP
ERECTION OF A SINGLE STOREY BUILDING FOR CLASSROOM USE (AMENDMENT TO PLANNING PERMISSION S6/2007/932/FP)
THE ST PHILIP HOWARD CATHOLIC PRIMARY SCHOOL, WOODS AVENUE, HATFIELD, HERTFORDSHIRE, AL10 8NN
Received 18 Jan 2008
Decided - Granted6/2025/2453/HOUSE
Erection of a masonry boundary wall to front garden area
10 Starling Lane Cuffley Potters Bar EN6 4JX
Received 24 Nov 2025
Decided - GrantedN6/2004/0957/FP
INSTALLATION OF 3 LOUVRE WINDOWS ON SECOND FLOOR.
WELWYN GARDEN CITY TELEPHONE EXCHANGE, WIGMORES NORTH, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 6PH
Received 23 Jun 2004
Decided - Withdrawn6/2017/0060/VAR
Variation of condition 3 (Drainage Statement) on planning permission 6/2015/2015/MAJ
Ocado Head Office, Buildings 1 & 2, Trident Place, Mosquito Way, Hatfield, AL10 9BW
Received 16 Jan 2017
Decided - Granted6/2016/0564/FULL
Erection of single storey accommodation for the Shire Park Business Park security office
Land adjacent to Central Drive, Shire Park, Welwyn Garden City, AL7
Received 1 Apr 2016
Decided - GrantedN6/2009/1161/LU
CERTIFICATE OF LAWFULNESS FOR INSTALLATION OF THREE ROOFLIGHTS
6 MANDEVILLE RISE, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7JU
Received 4 Jun 2009
Decided - Granted6/2016/2189/TPO
Cut back over hang on Oak tree by 2 metres covered by TPO 176 (1993)
7 Scotts View Welwyn Garden City AL8 6HF
Received 18 Oct 2016
Decided - Granted6/2016/1147/TPO
Lift & Thin Acer tree (T1) 4 Acer trees (T2) (T3) (T6) & (T7) and 2 Silver Birch trees (T4 & T5) by 25% - Conservation Area
132 Lemsford Lane, Welwyn Garden City, AL8 6YP
Received 1 Jun 2016
Decided - GrantedS6/2008/0634/FP
ERECTION OF REPLACEMENT GARAGE AND CONVERSION OF EXISTING GARAGE TO A HABITABLE ROOM
10 FARM CLOSE, CUFFLEY, HERTFORDSHIRE, EN6 4RQ
Received 27 Mar 2008
Decided - RefusedS6/2006/0568/FP
ERECTION OF FIRST FLOOR REAR EXTENSION AND PART GROUND FLOOR EXTENSION
12 Broad Acres Hatfield AL10 9LD
Received 2 May 2006
Decided - Granted6/2024/0479/HOUSE
Erection of an oak framed gazebo with tiled roof
1A Darby Drive Welwyn AL6 9TE
Received 12 Mar 2024
Decided - Granted6/2017/0311/HOUSE
Conversion of existing garage with the erection of a single storey side extension to form family annexe accommodation.
107 Crawford Road Hatfield AL10 0PF
Received 17 Feb 2017
Decided - Granted6/2021/1384/PN8
Prior approval for the erection of a single storey rear extension measuring 4m in depth, 3m in height and 3m to the eaves.
12 Orchard Way Little Heath Potters Bar EN6 1NT
Received 29 Apr 2021
Decided - Granted6/2016/2598/EM
Erection of single storey side and rear extension following part demolition of existing garage/playroom, replacement of existing garage roof, conversion of existing garage and alterations to openings.
13 Elmwood Welwyn Garden City AL8 6LD
Received 5 Dec 2016
Decided - GrantedN6/2009/2519/FP
ERECTION OF SINGLE STOREY REAR EXTENSION
4 LITTLE DELL, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7HZ
Received 10 Nov 2009

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
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.
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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