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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29,002 approved · 4,819 refused · 2,219 withdrawn.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: 9 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 Counts reflect the last collected status; some records may be out of date.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 - SplitN6/2009/1931/DS

    DISCHARGE OF CONDITIONS 3 (SAMPLES OF MATERIALS) AND 4 (ARCHAEOLOGICAL DETAILS) FROM PLANNING PERMISSIONS N6/2009/370/LB & N6/2009/369/FP

    MELBOURNE STUD, WATEREND LANE, AYOT ST PETER, WELWYN, HERTFORDSHIRE, AL6 9BB

    Received 2 Sept 2009
  2. Decided - Refused6/2023/1497/LAWP

    Certificate of Lawfulness for the erection of side and rear extensions on the main dwelling and managers cottage

    Woodlands Well Road Northaw Potters Bar EN6 4BN

    Received 17 Jul 2023
  3. Decided6/2024/0091/TC

    Tree species: Eucalyptus Sketch plan number: T1 Works description: monolithing the declining tree to 4m height, to retain as a garden feature for bird boxes Tree species: Sycamore Sketch plan number: T2 Works description: prune back extended and slender branches back to boundary by 2m, and up to height of 4.5m Tree species: Sycamore Sketch plan number: T3 Works description: prune back extended and slender branches back to boundary by 2m, and up to height of 4.5m

    37 Great Break Welwyn Garden City AL7 3EZ

    Received 15 Jan 2024
  4. Decided - Granted6/2021/2397/EMT

    Reduce 1 x Eucalyptus tree by 3-4m

    9 Attimore Close Welwyn Garden City AL8 6LN

    Received 13 Aug 2021
  5. Under Consultation6/2026/1785/FULL

    Erection of two GRP substations, two kiosks and ancillary infrastructure

    17 Tewin Road Welwyn Garden City AL7 1BD

    Received 7 Oct 2026
  6. Decided - GrantedN6/2013/2477/TC

    Fell Cherry tree and reduce Oak tree by 30%

    2 Woodland Rise, WELWYN GARDEN CITY, AL8 7LF

    Received 7 Nov 2013
  7. Decided - GrantedN6/2014/2740/TC

    Removal of Silver Birch tree and Apple tree

    43 Barleycroft Road, Welwyn Garden City, AL8 6JX

    Received 22 Dec 2014
  8. Decided - Refused6/2017/2362/HOUSE

    Erection of a two storey side, single storey front and rear extension, following demolition of existing garage and conservatory

    15 Marlborough Close Welwyn AL6 0UG

    Received 13 Oct 2017
  9. Under Consideration6/2026/1189/LAWE

    Certificate of lawfulness for the existing use of the property as a HMO (C4)

    7 Ely Close Hatfield AL10 0DW

    Received 8 Jul 2026
  10. DecidedN6/2008/1893/TC

    WORKS TO ACER TREES.

    LAND ADJACENT TO 215 & 217 HANDSIDE LANE, WELWYN GARDEN CITY, HERTS

    Received 9 Oct 2008
  11. Decided - Granted6/2024/2092/LAWP

    Certificate of lawfulness for a proposed new driveway, fencing and brick wall with piers

    43 Raymonds Plain Welwyn Garden City AL7 4TE

    Received 30 Oct 2024
  12. Decided - GrantedN6/2013/1978/NM

    Non material amendment following the approval of planning permission N6/2013/0279/FP - Amendment of description of development to; Erection of part single and part two storey rear extensions and single storey extensions to side and front following demolition of garage and store. Loft conversion with dormer to rear and insertion of first floor window to side.

    58 Attimore Road, WELWYN GARDEN CITY, AL8 6LP

    Received 9 Sept 2013
  13. Decided6/2021/3399/TC

    Fell 1x Eucalyptus (T1) by 100% and 1x Leylandi conifer (T2) by 100%.

    18 Coneydale Welwyn Garden City AL8 7RZ

    Received 3 Dec 2021
  14. Decided - GrantedS6/2014/2690/AD

    Installation of replacement notice board

    St Marys Church, North Mymms, Hatfield, AL9 7TN

    Received 16 Dec 2014
  15. Decided - Granted6/2018/0976/HOUSE

    Erection of part single, part two storey rear extension including installation of 2 x side windows

    129 Thistle Grove Welwyn Garden City AL7 4AG

    Received 16 Apr 2018
  16. Decided - GrantedN6/2009/1569/FP

    INSTALLATION OF GROUND FLOOR SIDE ELEVATION WINDOW AND ENLARGEMENT OF EXISTING WINDOW ON REAR ELEVATION

    4 SCHOLARS MEWS, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7JQ

    Received 21 Jul 2009
  17. Decided - Granted6/2016/2171/EM

    Thin Oak tree crown by 15% and reduce the height by upto 10ft

    25 Elmwood Welwyn Garden City AL8 6LD

    Received 17 Oct 2016
  18. Decided - RefusedN6/2013/1768/S73B

    Removal of condition 7 (No more than 25 engaged in external play activity/picnic) and 8 (Maximum number of children) of planning permission N6/2013/0721/FP - Change of use of ground and first floors from B1 (Business) to D1 (Day Nursery)

    Trevelyan House, 7 Church Road, Welwyn Garden City, AL8 6NT

    Received 15 Aug 2013
  19. Decided - Granted6/2024/1309/HOUSE

    Erection of a porch extension

    4 Bridge Road Woolmer Green SG3 6JG

    Received 9 Jul 2024
  20. Decided - GrantedN6/2014/0860/AD

    Installation of 2x wall mounted signs and 1x post mounted car park sign

    Parkway Community Health Centre, Birdcroft Road, Welwyn Garden City, AL8 6EH

    Received 22 Apr 2014
  21. Decided - Granted6/2025/2011/HOUSE

    Erection of a first floor side extension and new front boundary gates.

    18 Mardley Hill Welwyn AL6 0TN

    Received 18 Sept 2025
  22. Decided - Granted6/2017/1448/LAWP

    Certificate of lawfulness for the removal of chimney stack

    26 Hunters Way Welwyn Garden City AL7 4NP

    Received 3 Jul 2017
  23. Decided - Granted6/2023/1602/LAWP

    Certificate of lawfulness for proposed garage conversion to habitable use including replacing garage door to window & brickwork below

    35 Marsden Green Welwyn Garden City AL8 6YD

    Received 2 Aug 2023
  24. Decided - RefusedS6/2015/1276/FP

    Erection of detached summerhouse

    North Lodge Holwell Court Hatfield AL9 5RL

    Received 16 Jun 2015

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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