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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
322Recorded as pending
86%Approval rate · 33,788 approved or refused records
4,816Refused applications

28,972 approved · 4,816 refused · 2,217 withdrawn. Received dates in our records: 29 Apr 1948 to 29 Oct 2026. Most recent record check: 7 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2025/0899/HOUSE

    Erection of single storey rear extension

    10 Longlands Road Welwyn Garden City AL7 3QB

    Received 15 May 2025
  2. Decided - Granted6/2019/2446/EM

    Reduce 1 x Hawthorn tree by 1.5m height & width

    116 Parkway Welwyn Garden City AL8 6HN

    Received 2 Oct 2019
  3. Decided - Granted6/2015/1541/HOUSE

    Erection of single storey rear extension

    9 Attimore Close Welwyn Garden City AL8 6LN

    Received 21 Jul 2015
  4. Decided - GrantedN6/2004/0425/FP

    ERECTION OF DETACHED GARAGE AND FORMATION OF VEHICLE CROSSOVER

    8 Woodside Road Digswell Welwyn AL6 0DR

    Received 18 Mar 2004
  5. Decided - Granted6/2018/0144/FULL

    Installation of Bank of Ireland ATM to shop front

    1 Bradmore Green Brookmans Park Hatfield AL9 7QW

    Received 16 Jan 2018
  6. Decided6/2023/1733/TC

    Fell 1 x Cypress tree to front boundary due to damage caused by root network. This will be replaced with a boundary hedgerow

    156 Parkway Welwyn Garden City AL8 6HZ

    Received 17 Aug 2023
  7. Decided - Granted6/2017/2126/HOUSE

    Addition of single-storey glass canopy to rear elevation of property

    67 The Ridgeway Cuffley Potters Bar EN6 4BD

    Received 21 Sept 2017
  8. Decided - GrantedS6/2012/2374/FP

    Erection of two storey side, part two storey and part single storey rear extension

    5 The Gardens, Brookmans Park, HATFIELD, AL9 7UL

    Received 5 Nov 2012
  9. Decided - Granted6/2026/1274/FULL

    Installation of external wall insulation, replacing windows and doors with energy-efficient units, insulating and upgrading balconies, and replacing the existing cladding with non combustible fibre-cement plank

    Council owned flats: 38-48 & 50-60 Aldykes Hatfield AL10 8EF

    Received 20 Jul 2026
  10. Decided - Granted6/2026/0548/ADV

    Upgrading existing fascia, new KFC lettering, graphics to box sign, window sign and graphics to projecting sign

    46 Fretherne Road Welwyn Garden City AL8 6NU

    Received 25 Mar 2026
  11. Decided - Granted6/2021/3098/HOUSE

    Erection of single storey rear and side extension following demolition of existing single storey rear and side extension

    3 Elmwood Welwyn Garden City AL8 6LD

    Received 29 Oct 2021
  12. Decided - GrantedW6/2014/0121/EM

    Installation of rear canopy to include solar pv panels

    326 Knightsfield, Welwyn Garden City, AL8 7NQ

    Received 22 Jan 2014
  13. Decided - WithdrawnS6/2013/2596/FP

    Erection of a single storey, first floor extension with dormer windows on the east elevation and alterations to existing groundfloor windows and doors on the east, west and south elevations

    Northfield, Woodfield Lane, Brookmans Park, Hatfield, AL9 6JJ

    Received 5 Dec 2013
  14. Appeal Decided - DismissedS6/2014/0232/FP

    Change of Use of part of ground floor from House in Multiple Occupation (class C4) to three self contained units (class C3)

    2 De Havilland Close Hatfield AL10 0DR

    Received 27 Jan 2014
  15. Decided - GrantedW6/2015/1080/TE

    Removal of Sweet gum

    116 Lemsford Lane, Welwyn Garden City, AL8 6YP

    Received 21 May 2015
  16. Decided - GrantedN6/2013/1315/FP

    Erection of single storey rear extension

    10 Wilga Road, WELWYN, AL6 9PS

    Received 21 Jun 2013
  17. Decided - GrantedS6/2014/1565/TP

    Reduce crown by 2 metres of Ash covered by TPO240 T1

    4 Lea Green, Mill Green Lane, Hatfield, AL9 5NX

    Received 11 Jul 2014
  18. Decided - GrantedW6/2009/1195/EM

    INSTALLATION OF PATIO DOORS TO REAR ELEVATION

    20 HYDE VALLEY, WELWYN GARDEN CITY, HERTS, AL7 4NA

    Received 3 Jun 2009
  19. Decided - Granted6/2017/1251/HOUSE

    Erection of a single storey rear extension

    25 Middlefield Welwyn Garden City AL7 4DQ

    Received 8 Jun 2017
  20. Decided - Refused6/2020/0539/FULL

    Retention of car port, summerhouse and front bi-folding doors

    Hyde Cottage 16-18 Cromer Hyde Lane Lemsford Welwyn Garden City AL8 7XE

    Received 25 Feb 2020
  21. Decided - Granted6/2016/0831/HOUSE

    Erection of single storey rear extension

    16 Sefton Court, Welwyn Garden City, AL8 6WW

    Received 29 Apr 2016
  22. Decided - Granted6/2025/1565/HOUSE

    Erection of a single storey rear extension, following demolition of timber shed

    15 Barnfield Road Welwyn Garden City AL7 3TQ

    Received 21 Jul 2025
  23. Decided6/2017/1548/TPO

    Reduce side branches of Ash tree (T2) by 1.5m, reduce side branches of Cherry tree (T3) by 2m, Fell Silver Birch tree (T1) and fell Conifer tree (T4) - Conservation Area

    181 Parkway Welwyn Garden City AL8 6JA

    Received 17 Jul 2017
  24. Decided - Granted6/2018/2600/TPO

    Reduce 1x Hornbeam (T4) tree covered by TPO 711(2017) by approx. 2 metres and thin by 30%

    2 Juniper Gardens Welwyn AL6 0XH

    Received 10 Oct 2018

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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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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