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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
38,466Searchable applications
335Recorded as pending
86%Approval rate · 32,138 approved or refused records
4,593Refused applications

27,545 approved · 4,593 refused · 2,089 withdrawn. Received dates in our records: 29 Apr 1948 to 20 Oct 2026. Most recent record check: 26 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 Counts reflect the last collected status; some records may be out of date.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 buildingLocal plan Our Local PlanPre-application advice Pre-application advice (planning applications)Conservation areas Schedule of properties removed from the Welwyn Conservation AreaArticle 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

  1. Decided - GrantedS6/2008/1031/DS

    DISCHARGE OF CONDITION 4 OF PLANNING PERMISSION S6/2006/0737/DE (BOUNDARY TREATMENT)

    6 MYMMS DRIVE, BROOKMANS PARK, HATFIELD, HERTS, AL9 7AF

    Received 10 Jul 2008
  2. Decided - Granted6/2023/0069/FULL

    Change of use of land from residential amenity land to residential curtilage and erection of an outbuilding with associated landscaping

    Silver Gables Hawkshead Road Little Heath Potters Bar EN6 1LX

    Received 11 Jan 2023
  3. Appeal Decided - AllowedN6/2008/2463/FP

    ERECTION OF TWO STOREY REAR EXTENSION

    326 KNIGHTSFIELD, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7NQ

    Received 19 Dec 2008
  4. Decided - Granted6/2017/0909/EM

    Crown lift 3 Oak trees to 5m and removal of deadwood from 4 Oak trees

    11 Willow Grove Welwyn Garden City AL8 7NA

    Received 2 May 2017
  5. Decided6/2023/1350/TC

    1 x Lime to reduce by approximately 2m to previous pruning points

    14 The Old Drive Welwyn Garden City AL8 6TB

    Received 29 Jun 2023
  6. Decided - Granted6/2019/2160/EM

    Erection of first floor side extension

    76 Longcroft Lane Welwyn Garden City AL8 6EF

    Received 30 Aug 2019
  7. Decided - GrantedS6/2014/1588/FP

    Retention of single storey side extension incorporating existing detached garage and increased hardstanding

    105 The Ryde, Hatfield, AL9 5DN

    Received 14 Jul 2014
  8. Decided - Withdrawn6/2021/2669/LAWP

    Certificate of lawfulness for proposed use of residential dwelling for childcare services including erection of extension of outbuilding in rear garden

    1 Holloways Lane Welham Green Hatfield AL9 7NR

    Received 14 Sept 2021
  9. Decided - GrantedN6/2008/1155/CA

    DEMOLITION OF EXISTING GARAGE AND SIDE EXTENSION

    1 REDDINGS, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7LA

    Received 5 Jul 2008
  10. Decided - GrantedW6/2014/2748/EM

    Infill of side covered way to form utility room and minor internal alterations

    8 Aldock, Welwyn Garden City, AL7 4QF

    Received 23 Dec 2014
  11. Decided - Granted6/2019/1471/FULL

    Conversion of the existing car port to 1 x residential dwelling with associated car and cycle parking

    Swan Lodge Bell Lane Brookmans Park Hatfield AL9 7AY

    Received 18 Jun 2019
  12. Decided - Granted6/2023/0784/HOUSE

    Installation of external air conditioning units and the retention of the erection of summer house

    2 Frythe Avenue Welwyn AL6 9GF

    Received 11 Apr 2023
  13. Decided - Granted6/2023/0068/COND

    Submission of details pursuant to condition number 1 (roofing materials), on Listed Building Consent 6/2022/1668/LB

    26 High Street Welwyn AL6 9EQ

    Received 11 Jan 2023
  14. Decided - Granted6/2016/1377/TPO

    Removal of dead Silver Birch tree - Dead & Dangerous - Conservation Area

    87 Valley Road, Welwyn Garden City, AL8 7DR

    Received 7 Jul 2016
  15. Decided - Granted6/2026/0764/COND

    Submission of details pursuant to condition 1 (method) and 2 (structural survey and a detailed schedule of repair works) on listed building consent 6/2025/2626/LB

    45 High Street Welwyn AL6 9EH

    Received 30 Apr 2026
  16. Decided - Granted6/2018/0737/FULL

    Erection of front and side extensions to the existing industrial building to incorporate an extended retail area and café and engineering works to form internal access road, car park and turning area.

    61 London Road Woolmer Green Knebworth SG3 6JE

    Received 19 Mar 2018
  17. Decided - Granted6/2022/0702/EMT

    T5 - Multi-stemmed Ash to be felled to ground level.

    115 Handside Lane Welwyn Garden City AL8 6TA

    Received 24 Mar 2022
  18. Decided - Granted6/2019/2004/EM

    Remove deadwood 1x Pedunculate Oak Fell 2x Norway Spruce tree Crown reduce 1x Copper Beech by 2m Remove deadwood 1x Sessile Oak tree

    2 Roundwood Drive Welwyn Garden City AL8 7JZ

    Received 12 Aug 2019
  19. Decided - Granted6/2016/2294/EM

    Removal of Leylandii tree

    81 The Vineyard Welwyn Garden City AL8 7PX

    Received 2 Nov 2016
  20. Decided - GrantedW6/2013/1463/EM

    Erection of single storey rear extension incorporating french doors

    15 Beehive Green, Welwyn Garden City, AL7 4BE

    Received 10 Jul 2013
  21. Decided - Granted6/2023/1495/HOUSE

    Erection of first floor side extension

    8 South Drive Cuffley Potters Bar EN6 4HP

    Received 17 Jul 2023
  22. Decided - Granted6/2018/1303/EM

    Replacement of roof to existing conservatory

    3 Willow Grove Welwyn Garden City AL8 7NA

    Received 17 May 2018
  23. Appeal Decided - Dismissed6/2019/2122/EM

    Enlargement of driveway

    6 Broadfield Place Welwyn Garden City AL8 6LJ

    Received 27 Aug 2019
  24. Decided - RefusedN6/2013/0702/FP

    Erection of attached garage following demolition of existing garage and two storey front and rear extensions

    Mulberry House, Bibbs Hall Lane, Ayot St Lawrence, WELWYN, AL6 9BY

    Received 5 Apr 2013

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

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  • 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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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.

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