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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29,002 approved · 4,819 refused · 2,219 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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. Under Consultation6/2026/1678/HOUSE

    Installation of front dormer and insertion of bi folding doors to rear

    Sunnyside Essendon Hill Essendon Hatfield AL9 6AJ

    Received 22 Sept 2026
  2. Decided - GrantedN6/2013/1486/FP

    Erection of two storey front extension

    1A New Road Woolmer Green Knebworth SG3 6JX

    Received 9 Jul 2013
  3. Decided - Granted6/2017/1754/HOUSE

    Erection of single storey front extension

    62 Lords Wood Welwyn Garden City AL7 2HG

    Received 8 Aug 2017
  4. Decided - Granted6/2024/0697/HOUSE

    Erection of rear conservatory

    19 Poundwell Welwyn Garden City AL7 3NP

    Received 15 Apr 2024
  5. Decided - Granted6/2022/2107/EM

    Erection of ground floor rear extension and window replacement

    10 Dognell Green Welwyn Garden City AL8 7BL

    Received 9 Sept 2022
  6. Decided - GrantedS6/2006/0434/FP

    ERECTION OF A SINGLE STOREY SIDE EXTENSION

    91 Brookside Crescent Cuffley Potters Bar EN6 4QP

    Received 4 Apr 2006
  7. Decided - Granted6/2020/2717/HOUSE

    Erection of first floor side extension

    46 Blakemere Road Welwyn Garden City AL8 7PJ

    Received 19 Oct 2020
  8. Decided6/2024/1827/TC

    T1: The large 42-foot-tall (approx.) Common Ash (Fraxinus Excelsior) tree growing next to and over the front drive to undergo a crown reduction by 30% (12.6 feet / 3.8 meters) along with a cut back of the limbs from over the drive to allow more light onto the garden and drive below. An Ivy ring will be cut from around the trunk. The limbs on the neighbours' side to be cut back towards the boundary, to leave the tree balanced. T2: The 40-foot-tall (approx.) Field Maple (Acer Campestre) tree growing over the front drive to undergo a crown reduction by 30% (12 feet / 3.6 meters) along with a cut back of the limbs from over the front drive. An Ivy ring will be cut from around the trunk. T3: Option: The younger 22-feet-tall (approx.) Common Ash (Fraxinus Excelsior) tree growing nearer the front of the drive to be safely and systematically dismantled down to a low sump to allow more room for the Maple tree growing next to it.

    33 Applecroft Road Welwyn Garden City AL8 6JZ

    Received 23 Sept 2024
  9. Decided - GrantedN6/2009/1277/FP

    INSTALLATION OF NEW BAY WINDOW, NEW STEPS AND PORCH TO SIDE ENTRANCE

    26 Great North Road Welwyn AL6 0PS

    Received 15 Jun 2009
  10. Decided - Granted6/2021/0665/EM

    Insertion of 7 x solar panels

    4 Handside Green Welwyn Garden City AL8 6SQ

    Received 1 Mar 2021
  11. Decided - Granted6/2017/1189/HOUSE

    Erection of a front porch, two storey side and single storey rear infill extension following the demolition of existing garage and single storey side extension.

    4 Peplins Way Brookmans Park Hatfield AL9 7UU

    Received 30 May 2017
  12. Decided6/2020/1821/TC

    Reduce plum tree by 30% and removal of ash- covered by conservation area

    60 Handside Lane Welwyn Garden City AL8 6SJ

    Received 23 Jul 2020
  13. Decided - GrantedS6/2006/1077/FP

    ERECTION OF 24 DWELLINGS

    LAND ADJACENT TO, THE OLD RECTORY, OLD RECTORY DRIVE, HATFIELD, HERTFORDSHIRE, AL108AD

    Received 7 Aug 2006
  14. Decided - Granted6/2020/0108/EM

    1 x Beech to reduce by 1m height & width

    15 The Valley Green Welwyn Garden City AL8 7DQ

    Received 16 Jan 2020
  15. DecidedN6/2014/0044/TC

    Reduce Pine, Oak and Two Ash trees away from BT phone cables

    Land at 32 & 34 High Oaks Road, Welwyn Garden City, AL8 7BH

    Received 9 Jan 2014
  16. Decided - Granted6/2021/0512/EM

    Brick up bottom plastic panel of front window, replace all front windows to allow for additional openings and to open outwards rather than inwards.

    51 Broomhills Welwyn Garden City AL7 1RE

    Received 16 Feb 2021
  17. Decided - GrantedS6/2015/0514/TP

    Reduce lower laterals by 1.5m on Oak tree covered by TPO 283

    19 Tolmers Avenue, Potters Bar, EN6 4QA

    Received 10 Mar 2015
  18. Decided - Granted6/2022/0338/EM

    Replacement of front door for a newer door

    107 The Vineyard Welwyn Garden City AL8 7PX

    Received 14 Feb 2022
  19. Decided - Refused6/2023/0708/PN14

    Demolition of the existing structures as part of site redevelopment to include installation of EV charging, and upgrade to shop facilities and fuel infrastructure

    Stadium Service Station Stanborough Road Welwyn Garden City AL8 6XA

    Received 29 Mar 2023
  20. Decided - Granted6/2026/0073/HOUSE

    Erection of a single storey rear infill extension, garage conversion, outbuilding conversion to study with raising of roof

    345 Knightsfield Welwyn Garden City AL8 7NB

    Received 15 Jan 2026
  21. Decided6/2022/1867/TC

    Fell T1 Cypress and T2 Cypress to ground level.

    16 The Pastures Welwyn Garden City AL7 4PX

    Received 9 Aug 2022
  22. Decided - Withdrawn6/2022/1123/EM

    Erection of two-story rear extension and loft conversion with dormer

    21 Barleycroft Road, Welwyn Garden City, AL8 6JX

    Received 16 May 2022
  23. Decided - Granted6/2026/1417/HOUSE

    Erection of single storey side and first floor rear extensions, front porch extension, door and fenestration alterations to rear elevation, new front boundary fence and landscaping works

    15 Ramsey Close Brookmans Park AL9 6NP

    Received 11 Aug 2026
  24. Decided6/2020/1687/TC

    Reduce x1 Hornbeam tree by 2 metres. (T1) Remove x1 Cherry tree. (T2)

    5 Sherrardspark Road Welwyn Garden City AL8 7JW

    Received 13 Jul 2020

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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