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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
40,297Searchable applications
283Recorded as pending
86%Approval rate · 33,821 approved or refused records
4,819Refused applications

29,002 approved · 4,819 refused · 2,219 withdrawn. Received dates in our records: 29 Apr 1948 to 29 Oct 2026. Most recent record check: 8 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 Counts reflect the last collected status; some records may be out of date.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 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 - Refused6/2022/0954/EM

    Proposed two-storey front extension, a first-floor side extension and new garage following the demolition of the front utility room. With minor alterations to the front landscape

    20 Roundwood Drive Welwyn Garden City AL8 7JZ

    Received 22 Apr 2022
  2. Decided - Refused6/2018/3178/EM

    Installation of new porch pitched tiled roof to replace flat roof

    5 Howicks Green Welwyn Garden City AL7 4RJ

    Received 13 Dec 2018
  3. Decided - RefusedS6/2015/1405/HH

    Prior approval for a single storey rear extension

    28 Roe Green Lane Hatfield AL10 0RZ

    Received 1 Jul 2015
  4. Decided - Granted6/2023/2456/TPO

    T1 - Laurel reduce by 30% due to excessive shading. T2 - Hornbeam reduce by 20% side reduce back to boundary. T3 - Mixed Ash and Maple reduce by 20% side reduce back to boundary. All trees covered by TPO 640 (2017) G3.

    30 Mardley Hill Welwyn AL6 0TS

    Received 6 Dec 2023
  5. Decided - WithdrawnS6/2008/0599/FP

    ERECTION OF PICKET FENCE AND FORMATION OF PATIO

    14 & 16 Astwick Manor Coopers Green Lane Hatfield AL10 9BP

    Received 19 Mar 2008
  6. Decided - Granted6/2018/2392/TPO

    Reduce(T1) 1x Oak Tree by 30% Covered by TPO 252 (2002) and (T2) 1x Oak Tree by 30% Covered by TPO 252 (2002) - Conservation area

    19 Scholars Mews Welwyn Garden City AL8 7JQ

    Received 18 Sept 2018
  7. Decided - GrantedS6/2015/0991/FP

    Erection of single storey side extension

    4 Selwyn Crescent, Hatfield, AL10 9NN

    Received 14 May 2015
  8. Decided - Granted6/2016/2592/LB

    Conversion of existing airing cupboard into a WC, which is accessed via the rear bedroom on the 1st floor.

    14 Mill Lane Welwyn AL6 9ET

    Received 5 Dec 2016
  9. Decided - GrantedS6/2008/2060/FP

    ERECTION OF SINGLE STOREY REAR EXTENSION

    13 SCHOLARS WALK, HATFIELD, HERTFORDSHIRE, AL10 8ST

    Received 27 Oct 2008
  10. Decided - Refused6/2025/2077/COND

    Submission of details pursuant to Condition 2 (Construction Management Plan) of planning permission 6/2025/0843/HOUSE.

    32 Wilga Road Welwyn AL6 9PS

    Received 30 Sept 2025
  11. Decided - Granted6/2020/1354/EM

    Insertion of new composite double glazed front door and replacement of existing vertical wooden cladding to front porch with smooth coloured render

    23 Reddings Welwyn Garden City AL8 7LA

    Received 15 Jun 2020
  12. Appeal Decided - DismissedN6/2014/0037/FP

    Erection of detached dwelling with car parking space

    24 Mill Lane Welwyn AL6 9ET

    Received 10 Jan 2014
  13. Decided - Granted6/2024/1106/LB

    Internal alterations, including conversion of ground floor room to utility with new boiler and flue and walls to be dry-lined and plastered. Subdivision of bedroom to create new 1st floor bathroom. New shower room in 2nd floor bathroom. Installation of central heating system, flooring and skirting boards

    56 Bell Lane Brookmans Park AL9 7AY

    Received 14 Jun 2024
  14. Decided - Granted6/2021/3405/HOUSE

    Proposed single storey extension

    353 St Albans Road West Hatfield AL10 9RN

    Received 3 Dec 2021
  15. Decided - Granted6/2021/2365/HOUSE

    Erection of a single storey rear extension

    50 Oaklands Avenue Hatfield AL9 7UJ

    Received 10 Aug 2021
  16. Decided - GrantedS6/2007/1186/FP

    ERECTION OF FIRST FLOOR REAR EXTENSION

    317 St ALBANS ROAD WEST, HATFIELD, HERTFORDSHIRE, AL10 9RJ

    Received 7 Aug 2007
  17. Decided - GrantedN6/2009/1868/DS

    DISCHARGE OF CONDITION 3 (SAMPLE OF MATERIALS) FROM PLANNING PERMISSION N6/2009/0441/FP

    4 ATTIMORE ROAD, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 6LW

    Received 28 Aug 2009
  18. Decided - Granted6/2020/3331/HOUSE

    Erection of a single storey front extension following the demolition of the existing porch

    11A Windsor Close Welwyn AL6 9JZ

    Received 11 Dec 2020
  19. Decided - Granted6/2021/0686/PN8

    Prior approval for a rear extension with a flat roof and low level parapet wall surround to measure 4m in depth, 3.1m in height and 2.8m to the eaves.

    70 Heronswood Road Welwyn Garden City AL7 3ES

    Received 2 Mar 2021
  20. Decided - RefusedS6/2008/2001/FP

    ERECTION OF FOUR SELF-CONTAINED FLATS WITH ASSOCIATED PARKING

    LAND TO THE REAR OF, 81A, 81B, 81C & 81D LEMSFORD ROAD, HATFIELD, HERTFORDSHIRE, AL10 0DZ

    Received 20 Oct 2008
  21. Decided - GrantedS6/2004/1445/FP

    ADDITION OF PORT-A-CABIN FOR OFFICE USE

    Mably House Lemsford Road Hatfield AL10 0DT

    Received 30 Sept 2004
  22. Decided - GrantedS6/2015/1115/AD

    Installation of 1no flex face non illuminated to replace existing sign

    Service Road south from Hatfield Galleria to, Cavendish Way, Hatfield, AL10 0XR

    Received 26 May 2015
  23. Decided - GrantedN6/2013/2019/TP

    Sycamore T1 reduce overhang to give 2m clearance to garage, Hornbeams T2, T3 and T5 reduce back to re-growth, twin stemmed Hornbeam T4 re-coppice to ground level, fell dead Cherry T6 and reduce Holly T7 by 1/3 covered by TPO 230 A1

    37 Turpins Ride Welwyn AL6 0QX

    Received 16 Sept 2013
  24. Decided - GrantedW6/2004/0091/EM

    ERECTION OF SINGLE STOREY REAR EXTENSION

    72 Moorlands, Welwyn Garden City, AL7 4QG

    Received 21 Jan 2004

Records are ordered by application ID, not submission date. Use search to find a particular address or proposal.

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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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