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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
34,417Searchable applications
313Recorded as pending
87%Approval rate · 28,711 approved or refused records
3,793Refused applications

24,918 approved · 3,793 refused · 1,787 withdrawn. Received dates in our records: 29 Apr 1948 to 14 Oct 2026. Most recent record check: 21 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2023/0377/EMT

    Leyland Cypress hedge to dismantle in sections to ground level

    57 Knightsfield Welwyn Garden City AL8 7JE

    Received 17 Feb 2023
  2. Decided6/2023/1302/TC

    1 x Oak to reduce by 3m in height, 1.2m in width and lift to 4m above ground level. 1 x Hornbeam to reduce by 2m in height and 1.2m in width.

    9 Scholars Mews Welwyn Garden City AL8 7JQ

    Received 21 Jun 2023
  3. Decided - Granted6/2017/0259/TPO

    Removal of sycamore - Conservation Area

    The Two Brewers 1 Northaw Road West Northaw Potters Bar EN6 4NW

    Received 13 Feb 2017
  4. Decided - Granted6/2022/0317/HOUSE

    Erection of part first floor rear extension, replacement of single storey side extension, installation of vehicle crossover and one car parking space to front

    52 Maryland Hatfield AL10 8DX

    Received 10 Feb 2022
  5. Decided - Granted6/2021/0146/PN8

    Prior approval for the erection of a single storey rear extension measuring 5m in depth, 3.40m in height, 3m to the eaves.

    40 Oaklands Avenue Hatfield AL9 7UJ

    Received 18 Jan 2021
  6. Decided - GrantedW6/2014/1670/TE

    Removal of 2 dead cypress trees

    6 Stonemead, Welwyn Garden City, AL8 7LX

    Received 24 Jul 2014
  7. Decided - Granted6/2017/1255/EM

    Erection of single storey rear extension, two storey side extension, new window openings, and internal alterations.

    4 The Lawns Welwyn Garden City AL8 7HU

    Received 8 Jun 2017
  8. Decided - Granted6/2017/2582/HOUSE

    Erection of a single storey rear extension

    36 Hazel Grove Welwyn Garden City AL7 2DG

    Received 6 Nov 2017
  9. Decided - Granted6/2016/1601/HOUSE

    Erection of single storey rear extension and alterations to drive

    31 Glebe Road Welwyn AL6 9PB

    Received 5 Aug 2016
  10. Decided - GrantedS6/2008/2431/DS

    DISCHARGE OF CONDITIONS 2 (MATERIALS) & 3 (LANDSCAPING DETAILS) AND 4 (SITE LEVELS) FROM PLANNING DECISION NOTICE S6/2004/932/FP

    58 New Park Road, Hertford, SG13 8RF

    Received 16 Dec 2008
  11. Decided - GrantedS6/2015/0724/FP

    Erection of single storey and first floor rear extensions and roof extension to raise roof

    10 Bluebridge Road Brookmans Park Hatfield AL9 7SB

    Received 2 Apr 2015
  12. Decided - Granted6/2017/1542/PN8

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

    47 Holme Road Hatfield AL10 9LG

    Received 10 Jul 2017
  13. Decided - Granted6/2019/0705/HOUSE

    Erection of rear and side extension

    58 Briars Lane Hatfield AL10 8ET

    Received 25 Mar 2019
  14. Decided - Granted6/2020/3265/LB

    Demolition of existing conservatory and erection of a single storey timber and brick conservatory with a flat roof, roof light and clear double glazing.

    Hyde Cottage 16-18 Cromer Hyde Lane Lemsford Welwyn Garden City AL8 7XE

    Received 4 Dec 2020
  15. Decided - Granted6/2025/1371/EM

    Insertion of part dormer window

    19 Elmwood Welwyn Garden City AL8 6LD

    Received 1 Jul 2025
  16. Decided - Refused6/2023/1984/HOUSE

    To rebuild and reduce the length of the existing one storey garage and erect a first floor extension with dormer windows and rooflights

    116 Harmer Green Lane Digswell Welwyn AL6 0ET

    Received 26 Sept 2023
  17. Decided - Granted6/2020/2568/FULL

    Change of use from doctors surgery to 5 bedroom house

    185 Knightsfield Welwyn Garden City AL8 7QG

    Received 30 Sept 2020
  18. Decided - Granted6/2015/2349/HOUSE

    Erection of single storey rear extension, loft conversion to include side dormers and alterations.

    9 Georges Wood Road, Brookmans Park, Hatfield, AL9 7BY

    Received 17 Nov 2015
  19. Decided - Granted6/2019/0735/HOUSE

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

    109 Salisbury Road Welwyn Garden City AL7 3RY

    Received 28 Mar 2019
  20. Decided - Granted6/2024/0253/COND

    Submission of details pursuant to condition 4 (Part A- Site Characterisation and Part B - Remediation Scheme) for Phase 1 on planning permission 6/2022/2249/VAR

    Hertfordshire Constabulary Stanborough Road Welwyn Garden City AL8 6XF

    Received 7 Feb 2024
  21. Decided - Withdrawn6/2021/0971/FULL

    Change of use from offices B1(a) to dwelling houses C3 to include the creation of 9 residential units

    Andre House 19-25 Salisbury Square Hatfield AL9 5BT

    Received 25 Mar 2021
  22. Decided - Granted6/2020/1492/EM

    Erection of a shared party wall

    4 Archers Ride Welwyn Garden City AL7 4PS

    Received 19 Jun 2020
  23. Decided - Granted6/2022/2741/TPO

    TPO 450 T105 - Holm oak - Cut back to boundary on the south east and north east side with maximum 2m crown reduction for the remaining canopy

    Rear of 37 Butterwick Way Welwyn AL6 9GH

    Received 2 Dec 2022
  24. Decided - Granted6/2023/1098/EMT

    T1-Crab Apple- Fell to ground level as it has outgrown its position

    106 Mill Green Road Welwyn Garden City AL7 3XE

    Received 24 May 2023

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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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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