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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
34,897Searchable applications
313Recorded as pending
87%Approval rate · 29,069 approved or refused records
3,877Refused applications

25,192 approved · 3,877 refused · 1,817 withdrawn. Received dates in our records: 29 Apr 1948 to 14 Oct 2026. Most recent record check: 22 Oct 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2017/0423/TPO

    1 x Atlas Cedar to reduce by 3m on height and 2m on width - Conservation Area

    8 Turmore Dale Welwyn Garden City AL8 6HS

    Received 6 Mar 2017
  2. Decided - Granted6/2023/0179/FULL

    Change of use from taxi booking office to kitchen for preparation of food for delivery service with the erection of external chimney to house an extraction flue

    10 Bury Road Hatfield AL10 8BJ

    Received 25 Jan 2023
  3. Appeal Decided - DismissedS6/2014/1536/FP

    Erection of single storey front and rear extensions, completion of loft conversion with 1 front dormer and 1 rear dormer window and roof lights and provision of carport to southern elevation

    49 Osborne Road, Little Heath, Potters Bar, EN6 1SB

    Received 8 Jul 2014
  4. Appeal Decided - Allowed6/2021/1389/HOUSE

    Installation of solar panels to the front elevation of the property

    315 Knightsfield Welwyn Garden City AL8 7NJ

    Received 30 Apr 2021
  5. Decided - GrantedW6/2015/1306/EM

    Erection of proposed single storey side extension, enlarged porch, new opening in rear external wall and internal alterations

    11 Nut Grove Welwyn Garden City AL8 7SQ

    Received 18 Jun 2015
  6. Decided - WithdrawnS6/2015/0445/FP

    Erection of five new dwellings and shop (use class A5) with new access following demolition of shed and two garages

    17 Maynard Place Cuffley Potters Bar EN6 4JA

    Received 5 Mar 2015
  7. Decided - Granted6/2020/1093/EM

    Replace 1x front UPVC door with composite one

    9 Rollswood Welwyn Garden City AL7 4DG

    Received 14 May 2020
  8. Decided - Granted6/2018/1877/COND

    Confirmation that conditions attached to application 6/1974/0306 have been complied with

    Flats 1-11 (odd), and Flats 15-51 (odd) at Middlefield, Hatfield, AL10 0EE

    Received 12 Jul 2018
  9. Decided - Granted6/2018/1586/HOUSE

    Erection of single storey side extension and raising height of existing east elevation wall following partial demolition

    The Manor House Hill Farm Lane Welwyn AL6 9BP

    Received 13 Jun 2018
  10. Decided - Granted6/2018/1260/EM

    Fell 1x Oak tree - Dead and Dangerous

    16 Roundwood Drive Welwyn Garden City AL8 7JZ

    Received 14 May 2018
  11. Decided - Refused6/2018/0591/FULL

    Erection of detached two storey dwelling following demolition of existing detached garage and workshop building.

    31 Mill Lane Welwyn AL6 9EU

    Received 1 Mar 2018
  12. Decided - GrantedW6/2013/2442/TE

    Reduce dangerous Willow tree by 50%

    75 Digswell Park Road, Welwyn Garden City, AL8 7NW

    Received 15 Nov 2013
  13. Decided - Granted6/2026/1370/LAWP

    Certificate of lawfulness for the change of use of offices to 3 x 2 bedroom flats

    17-17A Mill Lane Welwyn AL6 9EU

    Received 3 Aug 2026
  14. Decided - Granted6/2020/0131/HOUSE

    Erection of side infill extension and first floor rear extension with alterations to openings

    36 Thornton Road Little Heath Potters Bar EN6 1JH

    Received 20 Jan 2020
  15. Decided - Granted6/2016/0485/HOUSE

    Loft conversion plus construction of front facing dormer

    25 Dixons Hill Close, Welham Green, Hatfield, AL9 7EF

    Received 24 Mar 2016
  16. Decided - GrantedN6/2013/2088/LUP

    Certificate of lawfulness for proposed erection of first floor rear extension

    28 Brocket Road, Welwyn Garden City, AL8 7TY

    Received 1 Oct 2013
  17. Decided - Granted6/2016/2372/TPO

    Tree Group - T4 - T8 to be managed together T4 Sycamore fell to ground - T5, T6, T7 and T8 Common Horse chestnuts fell to groud level T43 and T46 Alder and Silver Birch Fell to ground level T10 Sycamore Reduce leaning limb by 25%. Shape into the untouched crown, covered by TPO 73

    6 Codicote Road Welwyn AL6 9NB

    Received 10 Nov 2016
  18. Decided - Granted6/2016/0668/HOUSE

    Erection of front porch and single storey rear extension following demolition of existing porch

    25 Rosedale, Welwyn Garden City, AL7 1DW

    Received 8 Apr 2016
  19. Decided - Refused6/2021/1179/EM

    Erection of rear single-storey extension with roof lights in order to create extended family/kitchen area with utility and associated works.

    25 Rooks Hill Welwyn Garden City AL8 6EU

    Received 12 Apr 2021
  20. Decided - Granted6/2022/0477/HOUSE

    Alterations to fenestration, part conversion of front hipped roof to gable roof, erection of rear roof extension with conversion of rear hipped roof to gable and insertion of two side dormers.

    21 Kingswell Ride Cuffley Potters Bar EN6 4LH

    Received 1 Mar 2022
  21. Decided - Granted6/2018/0777/EM

    Prune and shape 1 x Holly tree (T1) by 2m in height, reduce crown spread of 1 x Yew tree (T2) by approx 1.5-2m, pollard 1 x Sycamore (T4) to remove all sprouts from cut ends of branches and dismantle declining and decay in base and main stem from 2 x Sycamores in group TG3 - leave stump low.

    9 Brockett Close Welwyn Garden City AL8 7BN

    Received 21 Mar 2018
  22. Decided - Granted6/2023/2087/HOUSE

    Erection of single storey rear extension following the demolition of the existing conservatory

    4 Bridge Road Knebworth SG3 6JG

    Received 13 Oct 2023
  23. Decided - Granted6/2021/2746/HOUSE

    Erection of a part two storey, part single storey rear extension and two storey side extension to include insertion of 1 x roof light

    79 Lark Rise Hatfield AL10 8RN

    Received 22 Sept 2021
  24. Decided - Refused6/2017/1670/LAWP

    Certificate of lawfulness for the erection of summer house in rear garden following demolition of existing summer house

    17 Danesbury Park North Ride Welwyn AL6 9SA

    Received 28 Jul 2017

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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