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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29,002 approved · 4,819 refused · 2,219 withdrawn.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: 10 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2016/2356/EM

    Crown reduce Ash tree by 30%

    86 The Vineyard Welwyn Garden City AL8 7PU

    Received 2 Nov 2016
  2. Decided - Granted6/2017/1360/HOUSE

    Erection of attached garage and single storey rear extension, following demolition of existing detached garage. Installation of conservation rooflight, bullseye windows to front and rear elevation and the construction of a boundary wall.

    9 Coneydale Welwyn Garden City AL8 7RX

    Received 23 Jun 2017
  3. Appeal Decided - AllowedS6/2015/0470/FP

    Erection of two storey side extension

    Woodvale 1 Carbone Hill Northaw Potters Bar EN6 4PJ

    Received 5 Mar 2015
  4. Decided - Granted6/2019/0140/EM

    Fell 1 x Goat Willow tree

    70 Thistle Grove Welwyn Garden City AL7 4AQ

    Received 24 Jan 2019
  5. Under Consideration6/2026/1725/TPO

    T1 & T2 – Oak, full 20% crown reduction to above previous pruning points as shown in photographs (TPO 459)

    20A The Ridgeway Cuffley EN6 4AR

    Received 30 Sept 2026
  6. Decided - Granted6/2019/0475/EM

    Conversion of garage to include installation of front windows

    9 Robin Mead Welwyn Garden City AL7 1PP

    Received 4 Mar 2019
  7. Decided - Split6/2019/3125/COND

    Submission of details pursuant to condition 1 (landscape mitigation) and 2 (tree planting) on planning permission 6/2019/0564/RM

    Land at Waterbeach Bericot Way Shackleton Way Welwyn Garden City AL7 2PT

    Received 11 Dec 2019
  8. Decided - GrantedN6/2004/0057/FP

    ERECTION OF SINGLE STOREY REAR EXTENSION

    17 Marsden Green Welwyn Garden City AL8 6YD

    Received 16 Jan 2004
  9. Decided - Granted6/2016/0951/COND

    Approval of details reserved by condition 2 (details of partition wall) and condition 3 (vent, piping and tiling) on listed building consent 6/2016/0199/LB

    Templewood Primary School, Pentley Park, Welwyn Garden City, AL8 7SD

    Received 16 May 2016
  10. Decided - Granted6/2017/0312/HOUSE

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

    16 Grange Hill Welwyn AL6 9RW

    Received 17 Feb 2017
  11. Decided - Split6/2019/2875/COND

    Submission of details pursuant to condition 2 (traffic noise) and 3 (acoustic report) on planning permission 6/2019/0702/VAR

    33 Lemsford Road Hatfield AL10 0DL

    Received 14 Nov 2019
  12. Decided - Granted6/2015/2007/EM

    Retention of summerhouse

    16 Youngs Rise, Welwyn Garden City, AL8 6RU

    Received 25 Sept 2015
  13. Decided - Granted6/2024/1395/PN8

    Prior approval for 6m rear extension measuring 6m in depth, 3m in height and 3m to the eaves

    22 Grangewood Little Heath Potters Bar EN6 1SH

    Received 22 Jul 2024
  14. Decided - Granted6/2023/0128/TPO

    Tree No. 2: False Acacia – Dismantle to ground level to mitigate any risk of failure - due to heavily weighted towards back building of Property No.28 Church Street, imbalanced crown favouring the side it leans towards. To replace with a fruit tree appropriate for the limited space we have. Trees No. 3 & 4: Holly x 2 – Reduce in height by 2.5m due to both intruding into No. 9 ‘s Garden and causing damage/rotting to their shed roof and to allow natural light and help growing the lawn/plants in the garden and as part of ongoing maintenance of trees size. TPO 814 (2018) G1

    8 Welwyn Hall Gardens Welwyn AL6 9LF

    Received 17 Jan 2023
  15. Decided - GrantedN6/2008/1374/LB

    ERECTION OF SINGLE STOREY EXTENSION FOR USE AS BOILER ROOM AND SCREEN WALL

    THE MANOR HOUSE, HILL FARM LANE, AYOT ST LAWRENCE, WELWYN, HERTFORDSHIRE, AL6 9BP

    Received 7 Aug 2008
  16. Decided - GrantedN6/2007/0883/FP

    ERECTION OF A REAR CONSERVATORY

    45 Langstone Ley Welwyn Garden City AL7 1FR

    Received 18 Jun 2007
  17. Decided - GrantedN6/2004/0855/FP

    SINGLE STOREY REAR EXTENSION AND FIRST FLOOR SIDE EXTENSION

    27 Wyton Welwyn Garden City AL7 2PE

    Received 7 Jun 2004
  18. Decided - GrantedW6/2013/1817/TE

    Fell diseased Horse Chestnut tree

    59 Valley Road, WELWYN GARDEN CITY, AL8 7DH

    Received 30 Aug 2013
  19. Decided - Granted6/2018/3164/LAWP

    Certificate of lawfulness for the replacement of extension roof and raising of garage roof to facilitate partial garage conversion

    9 Moffats Lane Brookmans Park Hatfield AL9 7RX

    Received 11 Dec 2018
  20. Decided - Granted6/2020/1774/TPO

    Fell 1 x Leyland Cypress Tree Covered by TPO 642 [2017] G1

    27 Hillside Way Welwyn AL6 0TY

    Received 20 Jul 2020
  21. Decided - GrantedN6/2004/0811/FP

    SINGLE STOREY REAR EXTENSION

    11 Shoplands Welwyn Garden City AL8 7RH

    Received 1 Jun 2004
  22. Decided - Granted6/2020/1979/EM

    Drive way and hard standing put in to property.

    91 Haldens Welwyn Garden City AL7 1DQ

    Received 8 Aug 2020
  23. Decided - Refused6/2020/2833/HOUSE

    Part single storey, part two storey rear extension following demolition of existing conservatory

    41 Longcroft Lane Welwyn Garden City AL8 6EB

    Received 29 Oct 2020
  24. Decided - Withdrawn6/2023/1914/EM

    Erection of single storey extension to link existing house and outbuilding, conversion of outbuilding into habitable space and internal alterations including general and external refurbishment

    1 Digswell Park Cottages Digswell Park Road Welwyn Garden City AL8 7NN

    Received 15 Sept 2023

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

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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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