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
23,661Searchable applications
313Recorded as pending
86%Approval rate · 19,341 approved or refused records
2,699Refused applications

16,642 approved · 2,699 refused · 1,223 withdrawn. Received dates in our records: 5 Jan 2005 to 2 Oct 2026. Most recent record check: 14 Oct 2026. Counts reflect the last collected status; some records may be out of date.

Local planning information

Council sources checked 14 Sept 2026

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 - Granted6/2024/0750/EMT

    Reduce Crab Apple tree back to previous pruning points (around 0.5m) to retain tree to suitable size for garden

    90 Handside Lane Welwyn Garden City AL8 6SN

    Received 23 Apr 2024
  2. Decided - Granted6/2017/2051/FULL

    Erection of a first floor rear extension to form staff rest/training room and construction of boundary wall

    23 Fiddlebridge Lane Hatfield AL10 0SP

    Received 13 Sept 2017
  3. Decided - Granted6/2018/2124/FULL

    Erection of a single storey side extension to join with existing outbuilding, construction of an iron ballustrade and stairs, installation of 3 rooflights and conversion of existing dwelling to create 4 flats (1 x 1-bedroom, 2 x 2-bedroom and 1 x 3-bedroom), with associated landscaping and parking

    54 New Road Digswell Welwyn AL6 0AH

    Received 14 Aug 2018
  4. Decided6/2023/1465/TC

    1 x Pine Tree to reduce the eastern branches by 30% at rear of the garden encroaching upon adjacent council garages

    67 Handside Lane Welwyn Garden City AL8 6SH

    Received 14 Jul 2023
  5. Decided - Granted6/2018/0041/FULL

    Extension of staff car parking facilities to provide an additional 27 spaces.

    The Listed Hangar Mosquito Way Hatfield AL10 9AX

    Received 5 Jan 2018
  6. Decided - Granted6/2018/0018/HOUSE

    Erection of a single storey rear extension

    5 Bacons Drive Cuffley Potters Bar EN6 4EF

    Received 3 Jan 2018
  7. Decided - Granted6/2017/0865/PN3

    Prior approval for the erection of a grain store measuring 30m in length, 15m in breadth, 8m to the eaves and 10m to the ridge

    Land east of Cucumber Lane Essendon Nr Hatfield AL9 6JB

    Received 26 Apr 2017
  8. Decided - Granted6/2021/1267/COND

    Submission of details pursuant to condition number 2 (traffic noise) on planning permission (6/2020/3187/FULL)

    7 Wendover Drive Welwyn AL6 9LT

    Received 20 Apr 2021
  9. Decided - Granted6/2025/2284/LAWE

    Certificate of lawfulness for the Meaningful Commencement of Development in Connection with Planning Permission ref: 6/2022/0821/FULL (Appeal Ref: APP/C1950/W/22/3307181)

    5 Oakwell Drive Northaw Potters Bar EN6 4EZ

    Received 27 Oct 2025
  10. Decided - Granted6/2026/0775/FULL

    Replacement of external wall insulation to match existing, replacement windows and doors, to double/triple glazed units and thermal doors, balcony insulation system to be added to balcony slab and new railings to match existing

    1-11, 13-23, 23-35 & 37-47 Grove Mead; 2-12, 14-24 Briars Wood & 2-12 & 22-32 Briars Lane Hatfield

    Received 1 May 2026
  11. Decided - Granted6/2021/0994/PN8

    Prior approval for the erection of a single storey rear extension measuring 4m in depth, 3m in height and 2.70m to the eaves

    18 Westland Drive Brookmans Park Hatfield AL9 7UQ

    Received 25 Mar 2021
  12. Appeal Decided - Dismissed6/2022/0499/FULL

    Erection of one detached dwelling to enable the restoration of the Walled Garden following the demolition of existing stables

    Woodside Wildhill Road Hatfield Hertfordshire AL9 6DN

    Received 2 Mar 2022
  13. Decided - Refused6/2019/3025/HOUSE

    Proposed loft conversion with a hip to gable roof, erection of storm porch and pitched roofs to front bay windows

    2 Waterworks Cottages Northaw Road East Cuffley Potters Bar EN6 4RB

    Received 29 Nov 2019
  14. Decided - Withdrawn6/2021/2344/LAWP

    Certificate of lawfulness for erection of rear extension and alterations to fenestration.

    1 Somersham Welwyn Garden City AL7 2PZ

    Received 9 Aug 2021
  15. Decided - Withdrawn6/2025/0900/LAWP

    Certificate of lawfulness for a dormer conversion to the rear of the property

    21 Hillside Way Welwyn AL6 0TY

    Received 15 May 2025
  16. Decided - Granted6/2018/1780/HOUSE

    Installation of rear dormer to existing loft bedroom

    50 The Ryde Hatfield AL9 5DL

    Received 5 Jul 2018
  17. Decided - Granted6/2020/3444/EM

    Erection of a single storey rear extension with roof lanterns and garage conversion, following the demolition of existing conservatory.

    9 Barleycroft Road Welwyn Garden City AL8 6JX

    Received 23 Dec 2020
  18. Decided - Granted6/2016/1929/HOUSE

    Loft conversion with alterations to the roof including extension of the roof over existing single storey rear extension, increase in roof height of 0.5m, installation of two front facing dormers and two rear dormers.

    4 Mardley Avenue Welwyn AL6 0UD

    Received 15 Sept 2016
  19. Decided - Granted6/2021/3334/EMT

    1 x Ash to remove entire low limb over garden back to trunk.

    76 Valley Road Welwyn Garden City AL8 7DP

    Received 25 Nov 2021
  20. Decided - Granted6/2024/0485/HOUSE

    Erection of front porch extension and external wall insulation

    15 Cranmer Close Little Heath Potters Bar EN6 1LB

    Received 13 Mar 2024
  21. Decided - Granted6/2017/1865/FULL

    Erection of 1 x 5-bedroom house following demolition of existing

    43 Brookmans Avenue Brookmans Park Hatfield AL9 7QH

    Received 22 Aug 2017
  22. Decided - Granted6/2018/1414/EM

    Fell 1 x Hawthorn tree and reduce 1 x Hawthorn tree by 70%

    6 Little Youngs Welwyn Garden City AL8 6SL

    Received 29 May 2018
  23. Decided6/2022/0616/TC

    A) Remove upright growth to 31 Lawson’s Cypress conifers, which are located on both sides of his back garden – this will entail shaping each tree and reducing the 40 foot trees by c30%. B) to remove dead-wood from the 2 oak trees in his back garden The purpose of this work is to maintain the shape and form of the trees in relation to the house and garden. This application conforms with previous applications made to the Council over the years.

    14 Mandeville Rise Welwyn Garden City AL8 7JU

    Received 15 Mar 2022
  24. Decided - Granted6/2016/2543/TPO

    Reduce branches at height of 4m on Oak tree, reduce 7 Leylandii trees by 2m and reduce Holly tree by 1.5m - Conservation Area

    29 Reddings Welwyn Garden City AL8 7LA

    Received 17 Nov 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.

  • 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.

  • 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.

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