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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29,002 approved · 4,819 refused · 2,219 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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 - Refused6/2016/1876/EM

    Erection of 2 no. bedroom end of terrace house and rear extension following demolition of attached garage

    189 Boundary Lane, Welwyn Garden City, AL7 4EJ

    Received 12 Sept 2016
  2. Decided - Granted6/2016/2202/COND

    Approval of details reserved by condition 2 (Green roof details) on planning permission 6/2016/1492/FULL

    Ludgate Barn, Ponsbourne Park, Newgate Street, Hertford SG13 8QT

    Received 19 Oct 2016
  3. Decided - Granted6/2018/0488/EM

    Fell 1 x Birch tree - conservation area

    42 Springfields Welwyn Garden City AL8 6XN

    Received 20 Feb 2018
  4. Decided - Refused6/2018/0225/HOUSE

    Erection of first floor side extension and single storey rear extension

    31 Selwyn Crescent Hatfield AL10 9NL

    Received 24 Jan 2018
  5. Decided - Granted6/2022/1499/FULL

    Change of use of part of ground floor (rear only with retention of shop unit) and first floor from Class E to class C3, alterations and extensions to create four self-contained flats (one on ground floor (rear), three on first floor) and associated amenity space, parking, bins and bike storage

    35 Town Centre Hatfield AL10 0JU

    Received 27 Jun 2022
  6. Decided - Granted6/2021/3240/FULL

    Erection of chemical storage units

    Eisai Europe Limited European Knowledge Centre Mosquito Way Hatfield AL10 9SN

    Received 12 Nov 2021
  7. Decided - GrantedN6/2009/1221/TE

    CROWN LIFT SYCAMORE TREE TO 3 METRES

    LAND ADJACANT TO, 27 AUTUMN GROVE, WELWYN GARDEN CITY, HERTFORDSHIRE, AL7 4DB

    Received 22 Jun 2009
  8. Decided - GrantedN6/2008/0991/CA

    DEMOLITION OF REAR CONSERVATORY

    23 WOODLAND RISE, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7LJ

    Received 26 Jun 2008
  9. Decided - Refused6/2023/1008/FULL

    Erection of two dwellings (semi-detached pair)

    6 Stanborough Cottages Great North Road Welwyn Garden City AL8 7TE

    Received 12 May 2023
  10. Decided - GrantedS6/2013/1327/FP

    Installation of two air handling units on roof with associated services and installation of two screens to enclosure for plant area

    Building 6 Trident Place, Mosquito Way, Hatfield, AL10 9BW

    Received 19 Jun 2013
  11. Decided - GrantedW6/2013/0232/EM

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

    36 Fordwich Road, WELWYN GARDEN CITY, AL8 6EY

    Received 4 Feb 2013
  12. Decided - Granted6/2021/1715/HOUSE

    Erection of first floor side extension above garage and linked to the first floor of the house

    62 New Park Road Newgate Street Hertford SG13 8RF

    Received 28 May 2021
  13. Decided - GrantedW6/2009/1702/EM

    ERECTION OF SINGLE STOREY REAR CONSERVATORY AND ENCLOSURE OF EXISTING FRONT PORCH

    5 BEDWELL CLOSE, WELWYN GARDEN CITY, HERTS, AL7 3XH

    Received 6 Aug 2009
  14. Decided - Granted6/2024/0476/HOUSE

    Installation of side dormer replacing roof lights, addition of roof light and replacement of pitched roof to flat roof over porch

    8 The Ryde Hatfield AL9 5DH

    Received 12 Mar 2024
  15. Decided - Withdrawn6/2023/0154/TC

    In accordance with the approval notice dated 20 January 23 and condition 8: Installation of the following: One of Prunus cerasifera 'Nigra' (Height between 5.0m to 6.0m) Two of Prunus Umineko (Height between 4.5m to 5.0m) Two of Malus ‘Everste (Height between 4.5m to 5.0m) Two of Prunus avium 'Plena' (Height between 4.0m to 4.05m) Enabling Works To enable the above, there are 24 Leylandi Trees 0.5 metres from the rear fence that will be moved to 0.5 metres from the left boundary fence as per the Landscape Design Booklet.

    21 Barleycroft Road Welwyn Garden City AL8 6JX

    Received 23 Jan 2023
  16. Decided - Granted6/2019/1934/EM

    Installation of shed following removal of shed

    8 Longcroft Lane Welwyn Garden City AL8 6EA

    Received 7 Aug 2019
  17. Decided - Granted6/2026/1293/HOUSE

    Erection of a single storey rear conservatory

    33 Claves Crescent Welwyn Garden City AL7 1WN

    Received 22 Jul 2026
  18. Decided - RefusedS6/2004/0344/FP

    ERECTION OF PART TWO STOREY, PART SINGLE STOREY REAR AND SIDE EXTENSIONS TO FORM 2 FLATS AND 1 DWELLING

    49 Bishops Rise Hatfield AL10 9BU

    Received 9 Mar 2004
  19. Decided - WithdrawnW6/2010/0231/EM

    FORMATION OF HARDSTANDING

    77 UPPERFIELD ROAD, WELWYN GARDEN CITY, HERTFORDSHIRE, AL7 3LR

    Received 16 Feb 2010
  20. Decided - RefusedN6/2004/1552/TP

    REMOVAL OF OAK (T1) COVERED BY TPO 303

    28 Reddings Welwyn Garden City AL8 7LA

    Received 18 Oct 2004
  21. Decided6/2020/1704/TC

    Fell 1 x Yew to rear of property linked with 2020/1717/EMT

    15 The Old Drive Welwyn Garden City AL8 6TB

    Received 14 Jul 2020
  22. Decided - Granted6/2023/2564/TPO

    Reduce 2 x Sycamore crown by 3m to previous cutting point covered by TPO 990, in line with historic tree management.

    13 Beehive Lane Welwyn Garden City AL7 4BB

    Received 28 Dec 2023
  23. Decided6/2020/3250/TC

    T1 Sycamore: fell to ground level Reason: Poorly formed fork at ground level. Self set tree. T2 Ash: fell to ground level Reason: Early signs of ash dieback. Poor fork near base. G3 Sycamore: crown lift to 5m. Prune northern tree laterally by 2m over nearby house. Reason: to improve clearance from nearby property

    St Audreys Car Park Church Lane Hatfield AL9 5HX

    Received 3 Dec 2020
  24. Decided - Granted6/2023/0990/LAWP

    Certificate of lawfulness for construction of a two storey rear extension

    116 Harmer Green Lane Digswell Welwyn Hertfordshire AL6 0ET

    Received 10 May 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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