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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29,002 approved · 4,819 refused · 2,219 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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. Appeal Decided - DismissedN6/2009/1999/FP

    RETENTION OF MEZZANINE FLOOR

    UNIT 4 MALLOW PARK, WATCHMEAD, WELWYN GARDEN CITY, HERTFORDSHIRE, AL7 1GX

    Received 11 Sept 2009
  2. Decided - Granted6/2023/0296/LAWP

    Certificate of lawfulness for the erection of a single storey rear extension

    50 Carvers Croft Woolmer Green Hertfordshire SG3 6LX

    Received 7 Feb 2023
  3. Decided - Refused6/2017/2776/HOUSE

    Erection of a single storey side infill extension to garage following partial demolition of existing, extension and alterations to roof and alterations to openings

    12 King James Avenue Cuffley Potters Bar EN6 4LR

    Received 28 Nov 2017
  4. Decided - Refused6/2022/1403/OUTLINE

    Outline permission for the erection of a 2-bed bungalow with all matters reserved

    Land to the rear of 33 Northdown Road Hatfield AL10 8SH

    Received 16 Jun 2022
  5. Decided - GrantedS6/2015/0119/AD

    Installation of 2 no internally illuminated fascia signs, Installation of 1 no, Double Sided internally illuminated projecting sign, 1 no. Internally illuminated freestanding poster sign (behind shop front glazing)

    3A Parkhouse Court, Hatfield, AL10 9RQ

    Received 22 Jan 2015
  6. Decided - Granted6/2017/1131/EM

    Partial conversion of existing garage and erection of a single storey rear extension

    13 Elmwood Welwyn Garden City AL8 6LD

    Received 24 May 2017
  7. Decided - Granted6/2020/3211/HOUSE

    Erection of a single storey side extension and infill side extension. Erection of a single storey, part two storey side/rear extension following demolition of existing conservatory and insertion of 3 x roof lanterns and 3 x roof lights, plus alterations to fenestration.

    5 Pentley Park Welwyn Garden City AL8 7RT

    Received 1 Dec 2020
  8. Decided - GrantedS6/2013/1980/FP

    Erection of single storey front extension

    The Bungalow, Vineyards Road, Northaw, Potters Bar, EN6 4PB

    Received 12 Sept 2013
  9. Decided - GrantedW6/2008/0426/EM

    ERECTION OF REAR CONSERVATORY

    106 HOWLANDS, WELWYN GARDEN CITY, HERTFORDSHIRE, AL7 4RG

    Received 3 Mar 2008
  10. Decided - Granted6/2022/0019/EM

    Single storey side/infill ground floor extenison, first floor extension, garage conversion and alterations to existing fenestration

    30 Dellcott Close Welwyn Garden City AL8 7BB

    Received 5 Jan 2022
  11. Decided - Granted6/2020/0096/TPO

    Fell 1x Oak tree

    Mulberry House Essendon Place High Road Essendon Hatfield AL9 6GZ

    Received 15 Jan 2020
  12. Appeal Decided - DismissedN6/2013/2431/FP

    Erection of single storey front, side & rear extensions, alterations to roof to include raising of roof height incorporating dormer windows and creation of secend vehicle crossover

    103 Attimore Road, Welwyn Garden City, AL8 6LG

    Received 19 Nov 2013
  13. Decided - GrantedN6/2009/0915/FP

    ERECTION OF FIRST FLOOR SIDE EXTENSION

    279 KNIGHTSFIELD, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7RA

    Received 20 Apr 2009
  14. Decided - GrantedN6/2009/2713/FP

    ERECTION OF SINGLE STOREY FRONT EXTENSION WITH NEW PITCHED ROOF, FIRST FLOOR FRONT EXTENSION, DORMERS AT FIRST FLOOR AND PITCH ROOF TO SINGLE STOREY REAR ELEMENT

    8A Woodland Way Welwyn AL6 0RZ

    Received 22 Dec 2009
  15. DecidedN6/2013/1323/TC

    Tree works - Please see schedule

    Peel House, College Way, Welwyn Garden City, AL8 6AH

    Received 20 Jun 2013
  16. Decided - Granted6/2021/0444/EM

    Erection of single storey rear extension and garage conversion

    24 Attimore Road Welwyn Garden City AL8 6LW

    Received 11 Feb 2021
  17. Decided - Granted6/2025/2433/EMT

    Fell laburnum (dead and decaying).

    42 Mill Green Road Welwyn Garden City AL7 3XF

    Received 20 Nov 2025
  18. Decided - Refused6/2018/2756/EM

    Erection of part first floor, part two storey side extension and installation of rear dormer and front roof light to facilitate loft conversion

    21 Furzefield Road Welwyn Garden City AL7 3RL

    Received 24 Oct 2018
  19. Decided - Granted6/2022/2732/HOUSE

    Erection of glass canopy on the rear elevation of the property

    22 Spinney Lane Welwyn AL6 9TF

    Received 1 Dec 2022
  20. Decided - Granted6/2015/1915/FULL

    Proposals for landscape and materials for Ludgate Barn part of Grangewood Stables, with amended fenestration to previous approval S6/2014/2316/FP and the addition of a plant room.

    Grangewood Stables, Newgate Street, Hertford, SG13 8QT (Ponsbourne Grange, SG13 8QS)

    Received 14 Sept 2015
  21. Decided - Granted6/2021/0796/TPO

    Reduce 2 x Oak by 1.5m, remove epicormic growth to height of 5m above ground level. RH Oak to remove low limb over summer house.

    20 Mardley Hill Welwyn AL6 0TS

    Received 11 Mar 2021
  22. Decided - Granted6/2015/2449/FULL

    Erection of Guide Hut following demolition of existing building

    Guide Hut, Guessens Road, Welwyn Garden City, AL8 6RE

    Received 10 Dec 2015
  23. Decided - Granted6/2017/0045/HOUSE

    Erection of a first floor front extension, single storey rear extension, front porch, 1no front dormer, 2no rear dormers, 3no side roof lights and alteration to roof

    68 Pine Grove Brookmans Park Hatfield AL9 7BW

    Received 11 Jan 2017
  24. Decided - GrantedW6/2014/0678/TE

    Coppice Hazel tree by upto 5 metres

    14 The Valley Green, Welwyn Garden City, AL8 7DQ

    Received 25 Mar 2014

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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