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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29,002 approved · 4,819 refused · 2,219 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2017/1989/EM

    T1 oak Reduce by up to 2.5m all over plus crown lift to 4m. T2 oak - fell. T3 - oak Prune to clear overhead lines by up to 2m.

    24 Roundwood Drive Welwyn Garden City AL8 7JZ

    Received 5 Sept 2017
  2. Decided - Refused6/2021/1803/HOUSE

    Extension of existing driveway

    22 Waterbeach Welwyn Garden City AL7 2PT

    Received 10 Jun 2021
  3. Decided - Granted6/2019/1964/LAWP

    Certificate of lawfulness for the alterations to front fenestration and altering position of front door

    22 Bishops Rise Hatfield AL10 9HH

    Received 8 Aug 2019
  4. Decided - Refused6/2016/1522/TPO

    Fell oak tree covered by TPO 396

    The Scout Hut, 1st Cuffley Scouts, End of Church Close, Cuffley, Potters Bar, EN6 4LS

    Received 26 Jul 2016
  5. Decided - Refused6/2017/1924/HOUSE

    Erection of a two storey rear and single storey side extension

    5 Evergreen Close Woolmer Green Knebworth SG3 6JN

    Received 29 Aug 2017
  6. Decided - Granted6/2025/0459/PIP

    Residential development for 1- 4 residential units

    Lodge Farm Harmer Green Lane Burnham Green AL6 0ET

    Received 11 Mar 2025
  7. Decided - RefusedS6/2013/1340/TP

    Fell 5 Ash trees covered by TPO11 A1 (due to low amenity value to garden)

    50 Brookmans Avenue, Brookmans Park, Hatfield, AL9 7QG

    Received 27 Jun 2013
  8. Decided - Granted6/2025/2543/LAWP

    Certificate of lawfulness for conversion of existing garage into habitable accommodation, erection of a side/rear extension following demolition of existing infill extension and insertion of skylights to existing roof slope

    4 Bluebells Welwyn AL6 0XD

    Received 9 Dec 2025
  9. Decided - GrantedS6/2006/0662/FP

    ERECTION OF TWO STOREY REAR EXTENSION

    4 Hook Lane Northaw Potters Bar EN6 4DA

    Received 24 May 2006
  10. Decided - GrantedW6/2015/1502/TE

    Remove Leylandii tree from rear garden and grind out stump

    30 Howicks Green Welwyn Garden City AL7 4RH

    Received 15 Jul 2015
  11. Decided - Refused6/2022/0494/HOUSE

    Erection of a single storey front porch extension, demolition of garage followed by a two storey side and two storey rear extension.

    130 Crawford Road Hatfield Hertfordshire AL10 0PA

    Received 2 Mar 2022
  12. Decided - Granted6/2025/0760/HOUSE

    Erection of single storey side and two storey rear extensions, front ground floor infill extension and alterations to openings following demolition of existing single storey side & rear extensions

    111 The Ridgeway Cuffley Potters Bar EN6 4BG

    Received 23 Apr 2025
  13. Decided - Granted6/2024/1312/EM

    Erection of single storey side/rear extension and part double storey rear extension, erection of timber outbuilding/Garden Room

    5 Pinnate Place Welwyn Garden City AL7 4DX

    Received 9 Jul 2024
  14. Decided - GrantedC6/1988/0308/FP

    Two storey and single storey rear extension

    75 Valley Road, Welwyn Garden City, AL8 7DR

    Received 1 Jan 1988
  15. Decided - Granted6/2016/1085/PN8

    Prior approval for the erection of a single storey rear extension measuring 6m. in depth, 3.4m. in height and 3m. to the eaves

    22 Deerswood Avenue Hatfield AL10 8RX

    Received 1 Jun 2016
  16. Decided - GrantedN6/2007/0863/FP

    ERECTION OF SINGLE STOREY SIDE EXTENSION AND REAR CONSERVATORY

    27 Wheatley Road Welwyn Garden City AL7 3LL

    Received 13 Jun 2007
  17. Decided - RefusedS6/2013/1736/FP

    Retention of existing shed and stables

    Forest Hills (Former Clubhouse), Newgate Street Village, Hertford, SG13 8NH

    Received 9 Aug 2013
  18. Decided - Granted6/2017/2824/HOUSE

    Erection of single storey side and rear Infill extension

    66 Tolmers Road Cuffley Potters Bar EN6 4JY

    Received 4 Dec 2017
  19. Decided - RefusedS6/2008/0780/LU

    CERTIFICATE OF LAWFULNESS FOR THE CONTINUED USE OF BUILDING AS A JOINERY WORKSHOP

    BREWHOUSE FARM, WILDHILL ROAD, BROOKMANS PARK, HATFIELD, HERTFORDSHIRE, AL9 6DS

    Received 15 May 2008
  20. Decided - GrantedN6/2013/2663/TC

    Lift crown of Field maple tree by 5 metres and fell 12 Conifer trees to ground level

    50 Blakemere Road, Welwyn Garden City, AL8 7PJ

    Received 16 Dec 2013
  21. Decided - Granted6/2020/0039/HOUSE

    Erection of a single storey rear and side extensions following demolition of garage and alterations to driveway. Infill front extension, erection of a porch, insertion of rooflight windows to the front and side, the insertion of a first floor window

    123 Tolmers Road Cuffley Potters Bar EN6 4JW

    Received 9 Jan 2020
  22. Decided - GrantedN6/2014/2280/FP

    Erection of single storey rear extension, detached therapy room (in rear garden) and first floor extension over garage to create an office space

    1 Leonard's Close, Welwyn, AL6 0QJ

    Received 16 Oct 2014
  23. Decided - WithdrawnS6/2013/1409/FP

    Loft conversion to incorporate hip to gable, rear flat roof dormer (including Juliet balcony), four roof lights to front elevation, and three roof lights to existing single storey rear extension

    11 Birchwood Avenue Hatfield AL10 0PL

    Received 4 Jul 2013
  24. Decided6/2022/1197/TC

    T1 Oak to reduce by 2m in height and 2.5m in width (crown diameter) to maintain size and spread T2 Oak to reduce by 2m in height and 3m in width (crown diameter) to allow more ambient light into property and lawn area. This tree is very central and dominates the sky. T4 Cherry (located in Scholars mews) to fell to ground level. The tree is leaning heavily and is in poor condition. T5 Ash (located in Scholars mews) to fell to ground level Again this tree leans excessively over the boundary and is of poor condition.

    7 Densley Close Welwyn Garden City AL8 7JX

    Received 24 May 2022

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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