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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
40,295Searchable applications
322Recorded as pending
86%Approval rate · 33,786 approved or refused records
4,816Refused applications

28,970 approved · 4,816 refused · 2,217 withdrawn. Received dates in our records: 29 Apr 1948 to 29 Oct 2026. Most recent record check: 7 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 Counts reflect the last collected status; some records may be out of date.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 - GrantedS6/2008/1970/FP

    ERECTION OF NEW REAR CONSERVATORY, FOLLOWING DEMOLITION OF EXISTING CONSERVATORY

    GREAT OAK HOUSE, ESSENDON PLACE, ESSENDON, HATFIELD, HERTFORDSHIRE, AL9 6GZ

    Received 15 Oct 2008
  2. Decided - Granted6/2021/0149/LAWP

    Certificate of Lawfulness for the use of the property as a class E Cafe

    35-37 Howardsgate Welwyn Garden City AL8 6AP

    Received 19 Jan 2021
  3. Decided - Granted6/2021/0643/EMT

    Fell 1x Fir Tree

    31 Colgrove Welwyn Garden City AL8 6HY

    Received 26 Feb 2021
  4. Decided - Granted6/2017/1208/LAWE

    Certificate of lawfulness for the retention of existing rear garden outbuilding with new extension Class C3 (Dwelling houses)

    22 Homestead Lane Welwyn Garden City AL7 4LU

    Received 2 Jun 2017
  5. Decided - Split6/2018/2708/COND

    Submission of details pursuant to condition 2 (materials) on planning permission 6/2016/1882/FULL

    Former Roche Products Site 40 Broadwater Road AL7 3AY

    Received 23 Oct 2018
  6. Appeal Decided - DismissedN6/2006/0542/FP

    PROPOSED SINGLE STOREY REAR EXTENSION

    174 Boundary Lane Welwyn Garden City AL7 4DF

    Received 26 Apr 2006
  7. Decided - Granted6/2025/2225/LAWP

    Certificate of lawfulness for a ground floor rear extension

    26 Byfield Welwyn Garden City AL8 7AL

    Received 21 Oct 2025
  8. Decided - Granted6/2016/0825/HOUSE

    Retention of service plant to rear of the garage and formation of a basement with vehicular access and annexe within the roof space

    Warrenwood Manor, Hornbeam Lane, Brookmans Park, Hatfield, AL9 6JF

    Received 3 May 2016
  9. Decided - Granted6/2021/3142/PN8

    Prior approval for the erection of a single storey rear extension measuring 8m in depth, 2.65m in height and 2.295m to the eaves

    12 Rollswood Road Welwyn AL6 9TX

    Received 3 Nov 2021
  10. Decided - Withdrawn6/2015/2351/TPO

    Reduce Oak tree crown by 30% - Conservation Area.

    31 Reddings, Welwyn Garden City, AL8 7LA

    Received 18 Nov 2015
  11. Decided6/2025/1969/TC

    3x Leylandii trees to be removed.

    9 The Quadrangle Welwyn Garden City AL8 6SG

    Received 15 Sept 2025
  12. Decided - Refused6/2017/1127/EM

    Fell 1 x Oak tree

    12 Sherrardspark Road Welwyn Garden City AL8 7JP

    Received 24 May 2017
  13. Decided - Granted6/2018/1461/HOUSE

    Erection of a car port

    2 The Drive Welwyn AL6 0TR

    Received 1 Jun 2018
  14. Decided - Refused6/2021/3109/HOUSE

    Erection of front boundary wall with gates

    7 Great North Road Hatfield AL9 6LB

    Received 1 Nov 2021
  15. Decided - Granted6/2015/1803/FULL

    Installation of window

    Blenheim House Blenheim Court Brownfields Welwyn Garden City AL7 1AD

    Received 25 Aug 2015
  16. Decided - GrantedN6/2009/1716/FP

    THE REPAIR AND REBUILD OF SECTIONS FOLLOWING FIRE DAMAGE

    The Wellington 1 High Street Welwyn AL6 9LZ

    Received 6 Aug 2009
  17. Decided - GrantedN6/2015/0129/NM

    Non material amendment following approval of planning permission N6/2014/0640/FP - Addition of high level window 1.75m from internal floor level, south facing towards No 10 to first floor extension

    12 Canonsfield Road Welwyn AL6 0QH

    Received 23 Jan 2015
  18. Decided - Granted6/2016/1540/HOUSE

    Erection of single storey part two storey rear extension with balcony

    13 Sycamore Avenue, Hatfield, AL10 8LZ

    Received 28 Jul 2016
  19. Decided - Granted6/2024/1592/EMT

    3 x Holly trees on the right-hand side of the garden to reduce back to previous cuts 1 x Holly on left hand side of garden to reduce to match other 3 holly 1 x Magnolia to remove one stem and shape canopy to balance crown

    22 Mandeville Rise Welwyn Garden City AL8 7JU

    Received 21 Aug 2024
  20. Decided - Granted6/2020/0391/HOUSE

    Erection of a single, part two storey rear extension, alterations to openings and formation of hardstanding and dropped kerb

    3 The Valley Green Welwyn Garden City AL8 7DQ

    Received 12 Feb 2020
  21. Decided - Granted6/2018/1328/EM

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

    7 Russellcroft Road Welwyn Garden City AL8 6QY

    Received 15 May 2018
  22. Decided - Withdrawn6/2021/0171/TC

    Reduce 1 x Oak tree by 30% covered by conservation area

    8 Hillside Welwyn Garden City AL7 4PZ

    Received 20 Jan 2021
  23. Decided - Granted6/2022/2463/HOUSE

    Erection of single storey rear extension with new patio area, following demolition of existing conservatory

    9 Copse Hill Welwyn AL6 0RY

    Received 26 Oct 2022
  24. Decided - RefusedS6/2009/1356/FP

    RETENTION OF SINGLE STOREY SUMMER HOUSE TO REAR GARDEN

    58 Briars Lane Hatfield AL10 8ET

    Received 30 Jun 2009

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

Start with the address or application reference. Open a record to read the proposal, dates and available documents, then check the official register for the latest plans and consultation details. If nothing appears, check coverage before treating the result as a complete planning history.

How to search planning applications

Guides to planning records

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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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