PlanningTrack
Get started

England · Local authority

Welwyn Hatfield Borough Council
Planning applications.

Explore collected planning applications and decisions for Welwyn Hatfield Borough Council. Search an address, application reference or proposal to find a record.

Collected application statistics

Collected records · All available dates
33,238Searchable applications
313Recorded as pending
87%Approval rate · 27,827 approved or refused records
3,634Refused applications

24,193 approved · 3,634 refused · 1,743 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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. Appeal Decided - Allowed6/2024/0945/FULL

    Change of use to install a driveway

    5 Lady Grove Welwyn Garden City AL7 4DS

    Received 21 May 2024
  2. Decided - RefusedS6/2014/0799/NM

    Non material amendment following approval of planning permission S6/2012/0369/FP - Alteration of fenestration to road. Use of Bat boxes in lieu of Bat loft

    Cucumber Barn, Cucumber Lane, Essendon, Hatfield, AL9 6JB

    Received 15 Apr 2014
  3. Decided - GrantedS6/2014/2080/OR

    Prior approval for the change of use of office building (Use Class B1) to 15 residential flats (Use Class C3)

    Prospect House 85 Great North Road Hatfield AL9 5EU

    Received 19 Sept 2014
  4. Decided - GrantedN6/2013/1168/TC

    Reduce dangerous low branch on Oak tree by 25%

    12 Sherrardspark Road, WELWYN GARDEN CITY, AL8 7JP

    Received 7 Jun 2013
  5. DecidedN6/2014/1231/TC

    Removal of Laburnam tree

    8 Dellcott Close, Welwyn Garden City, AL8 7BD

    Received 10 Jun 2014
  6. Decided - Withdrawn6/2018/2320/COND

    Submission of details pursuant to condition 1 (Material Samples) on planning application 6/2018/1740/HOUSE

    21 The Avenue Welwyn AL6 0PW

    Received 10 Sept 2018
  7. Decided - Granted6/2021/3042/TPO

    2x yew reduce back to previous points (approx 1m) or to suitable growth point to balance the crown. 1x birch removal on roadside. Health of tree is declining with die back in crown. Recommend removal and replant. 1x dead birch removal.

    1A Adele Avenue Digswell Welwyn AL6 0AU

    Received 22 Oct 2021
  8. Decided - Granted6/2017/2916/HOUSE

    Erection of first floor rear extension

    70 Upperfield Road Welwyn Garden City AL7 3LW

    Received 18 Dec 2017
  9. Decided - Granted6/2023/0523/EM

    Full replacement of roof, PVC guttering and down pipes replaced, dormer to be re clad in replacement white plastic, similar to existing

    95 Daniells Welwyn Garden City AL7 1QT

    Received 8 Mar 2023
  10. Decided - Granted6/2021/0398/PN8

    Prior approval for the erection of a single storey rear extension measuring 6m in depth, 3.80m in height and 2.30m to the eaves

    22 Homestead Road Hatfield AL10 0QL

    Received 5 Feb 2021
  11. Decided6/2019/2418/TC

    Reduce 2 x Apple trees by 2.5m to previous points Reduce 1 x Greengage by 1.5m to previous points

    6 The Lawns Welwyn Garden City AL8 7HU

    Received 30 Sept 2019
  12. Decided6/2024/1126/TC

    1 x Apple to reduce by approximately 1m in height and width

    84 Valley Road Welwyn Garden City AL8 7DP

    Received 17 Jun 2024
  13. Decided - Granted6/2016/1454/EM

    Sycamore tree (T1) (multi stem) Reduction by 2-3m and thin by 10%

    174 Handside Lane, Welwyn Garden City, AL8 6SZ

    Received 8 Jul 2016
  14. Decided - Granted6/2023/1998/HOUSE

    Retention of single storey rear extension and access steps (retrospective)

    7 Hurstlings Welwyn Garden City AL7 3LX

    Received 28 Sept 2023
  15. Decided - Granted6/2015/2279/TPO

    Remove basal growth from field maple tree T1 covered by TPO 301.

    Land at Parkhouse Court, Hatfield, AL10 9RQ

    Received 9 Nov 2015
  16. Decided - RefusedS6/2009/1359/FP

    EXTENSION TO EXISTING REAR DORMER AND ERECTION OF SINGLE STOREY REAR EXTENSION

    81 CRANFIELD CRESCENT, CUFFLEY, HERTFORDSHIRE, EN6 4DZ

    Received 24 Jun 2009
  17. Decided - Granted6/2016/1325/TPO

    Reduce & shape Beech tree by upto 40% - Conservation Area

    7 & 8 The Valley Green, Welwyn Garden City, AL8 7DQ

    Received 23 Jun 2016
  18. Decided - GrantedW6/2015/0288/EM

    Single storey side and rear extensions

    55 Longcroft Lane, Welwyn Garden City, AL8 6EB

    Received 12 Feb 2015
  19. Decided - Granted6/2018/1867/COND

    Submission of details pursuant to condition 2 (material samples) on planning permission 6/2016/2216/RM

    Land to the rear of Unit D City Park Watchmead Welwyn Garden City AL7 1LT

    Received 17 Jul 2018
  20. Decided - Granted6/2018/1104/HOUSE

    Erection of a part single storey, part two storey rear extension and single storey side extension

    10 Orchard Way Little Heath Potters Bar EN6 1NT

    Received 27 Apr 2018
  21. Decided - GrantedN6/2015/0309/DS

    Approval of details reserved by condition 3 (materials) of planning permission N6/2014/2150/FP

    86 Rowans, Welwyn Garden City, AL7 1PD

    Received 17 Feb 2015
  22. Decided - Granted6/2023/2261/HOUSE

    Erection of a single storey rear extension, alterations to the front, side and rear of the existing dwelling, material changes to an existing garage, new carport and boundary treatment including new front gates, installation of solar PV panels to roof and erection of a new garden outbuilding.

    44A Harmer Green Lane Digswell Welwyn AL6 0AT

    Received 8 Nov 2023
  23. Decided - Granted6/2023/1617/HOUSE

    Alterations to existing conservatory, removal of chimney, alterations to the fenestration's including rendering and relocating windows and front door. Formation of Portico to South elevation. Conversion of two garages into habitable rooms and stonework to gables, parapet walls and windows surrounds, new roof tiles and altering ground floor pitched roofs (South Elevation) to flat roofs.

    15 Brookmans Avenue Hatfield AL9 7QH

    Received 4 Aug 2023
  24. Decided - Granted6/2016/0558/EM

    Removal of Conifer tree from front garden

    168 Howlands, Welwyn Garden City, AL7 4RQ

    Received 1 Apr 2016

Records are ordered by application ID, not submission date. Use search to find a particular address or proposal.

View all applications

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

All planning guides

  • Understanding planning · 13 min read

    Planning application documents: what to read first

    Understand planning application documents, officer reports and decision notices. Use a reading checklist, document table and worked example to inspect a case.

    UK research
    Published Updated

  • Understanding planning · 13 min read

    Planning permission drawings: how to read plans

    Read planning drawings, floor plans, elevations and sections. Use labelled diagrams, a drawing comparison table and revision checks to understand a proposal.

    UK research
    Published Updated

  • Property research · 13 min read

    Planning approval rates: how to read council statistics

    Understand planning approval rates with an interactive calculator, worked examples and comparison table. Check sample sizes, outcomes and coverage before comparing.

    UK research
    Published Updated

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.

Check collection coverage

More planning authorities in England

Browse all authorities