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

40,247Searchable applications

321Recorded as pending

86%Approval rate · 33,743 approved or refused records

4,812Refused applications

28,931 approved · 4,812 refused · 2,213 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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

Appeal Decided - Allowed6/2017/2204/ADV
Installation of 3 x internally illuminated freestanding forecourt signs measuring 3m in height and 1.8m in width
Trade Park 1 Bessemer Road Welwyn Garden City AL7 1HF
Received 28 Sept 2017
Decided - Granted6/2020/3004/PN8
Prior approval for the erection of a single storey rear extension measuring 8m in depth, 3m in height and 3m to the eaves
Tylers Cottage Tylers Causeway Newgate Street Hertford SG13 8QN
Received 12 Nov 2020
Decided - GrantedN6/2012/2585/DS
Discharge of conditions 3 (Green Travel Plan) of planning permission N6/2012/0417/FP
Salvation For The Nations Herts International Churches, Unit 2 Sterling Court, 2 Mundells, WELWYN GARDEN CITY, AL7 1FT
Received 4 Dec 2012
Decided - Granted6/2019/1977/TPO
Reduce 1x Walnut tree by 25% (TPO 698)
25 Mardley Avenue Welwyn AL6 0TU
Received 8 Aug 2019
Decided - GrantedS6/2015/1146/FP
Installation of eight louvre windows
Beaconsfield Court Beaconsfield Road Hatfield AL10 8BE
Received 1 Jun 2015
Decided - Granted6/2017/1502/EM
Replace existing tarmac front driveway with block paving
38 Beehive Lane Welwyn Garden City AL7 4BP
Received 10 Jul 2017
Decided - Granted6/2018/3220/LAWP
Certificate of lawfulness for installation of rear dormer to facilitate loft conversion and installation of 2 x roof lights to front elevation of existing roof
8 The Brambles Welwyn AL6 0PG
Received 18 Dec 2018
Decided - Granted6/2018/1020/EM
Installation of satellite dish
1 Polayn Garth Welwyn Garden City AL8 7DJ
Received 18 Apr 2018
Decided - GrantedW6/2013/1215/TE
Reduce Eucalyptus tree to 4ft
42 Longcroft Lane, WELWYN GARDEN CITY, AL8 6EF
Received 24 May 2013
Decided - Granted6/2017/2325/COND
Submission of details pursuant to condition 18 (noise survey) on planning permission S6/2015/1061/MA, dated 05/11/2015
Plot 6000 Hatfield Avenue Hatfield business Park Hatfield AL10 9UA
Received 11 Oct 2017
Decided - Granted6/2025/0104/EMT
Reduction of crown of Beech Tree in rear garden by 20%
22 Turmore Dale Welwyn Garden City AL8 6HS
Received 22 Jan 2025
Decided - Granted6/2026/0324/COND
Submission of details pursuant to Condition 3 (Construction Management Plan) & Condition 7 (Landscape and Ecology Management Plan (LEMP)) on planning permission 6/2023/1532/OUTLINE
Land at South Way Hatfield AL10 8HS
Received 23 Feb 2026
Decided - Refused6/2019/2132/LAWP
Certificate of lawfulness for the erection of single storey rear extension with Installation of windows to facilitate garage conversion
34 Bradmore Way Brookmans Park Hatfield AL9 7QX
Received 28 Aug 2019
Decided - GrantedS6/2004/0572/LB
Conversion, Alteration and Change of UseoOf Northaw House to Single Residential Unit, Stable Block to 1 Residential Unit, Ballroom Wing to 3 Residences, Seven New Build Dwellings; (3 of Which Live / Work) Extension, Alterations and Refurbishment of Oak Cottage, Plus Associated Car Parking, Driveway and Access and Landscaping, including Some Demolition
NORTHAW HOUSE, JUDGES HILL, NORTHAW, POTTERS BAR, HERTFORDSHIRE
Received 6 Apr 2004
Decided - Withdrawn6/2023/1933/FULL
Change of use from amenity land to residential driveway (retrospective)
12 Golden Dell Welwyn Garden City AL7 4EB
Received 19 Sept 2023
Decided - GrantedS6/2009/2615/DS
DISCHARGE OF CONDITION 2 (SAMPLES OF MATERIALS) FROM PLANNING PERMISSION S6/2007/1521/FP
GREAT NAST HYDE HOUSE, WILKINS GREEN LANE, HATFIELD, HERTFORDSHIRE, AL10 9RB
Received 2 Dec 2009
Decided - Granted6/2022/1786/FULL
Erection of a single vehicle spray booth for the use of bodywork preparation and motor repairs (retrospective)
51-53 London Road Woolmer Green Hertfordshire SG3 6JE
Received 28 Jul 2022
Decided - Granted6/2020/0064/HOUSE
Erection of part single part two storey rear extension, raising of roof and single storey front extension
45 Hill Rise Cuffley Potters Bar EN6 4EH
Received 13 Jan 2020
Decided - Granted6/2025/0792/EMT
5 x Leyland Cypress to remove in sections to ground level.
100 Ridgeway Welwyn Garden City AL7 2DA
Received 28 Apr 2025
Decided - GrantedN6/2010/0044/FP
CHANGE OF USE FROM OFFICE USE TO D1 (EDUCATION)
2 CHURCH ROAD, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 6PT
Received 11 Jan 2010
Decided - RefusedW6/2008/2364/EM
ERECTION OF TWO STOREY REAR AND SINGLE STOREY SIDE AND REAR EXTENSIONS
16 COWPER ROAD, WELWYN GARDEN CITY, HERTFORDSHIRE, AL7 3LS
Received 1 Dec 2008
Decided - Granted6/2021/1261/HOUSE
Erection of single storey rear extension
4 Mill Green Cottages Low Road Essendon Hatfield AL9 6AB
Received 19 Apr 2021
Decided - Granted6/2017/2448/FULL
Alterations to roof to form second floor office accommodation (Amendment to planning permission reference S6/2015/0825/FP).
Alfred House 20 The Common Hatfield AL10 0ND
Received 24 Oct 2017
Decided - WithdrawnC6/1988/0486/OP
Site for Class B1 development
Land adjacent to, Chequers Field, Welwyn Garden City, AL7 4TX
Received 1 Jan 1988

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