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
21,114Searchable applications
298Recorded as pending
86%Approval rate · 17,049 approved or refused records
2,410Refused applications

14,639 approved · 2,410 refused · 1,082 withdrawn. Received dates in our records: 5 Jan 2005 to 30 Sept 2026. Most recent record check: 13 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2018/0942/HOUSE

    Erection of a part single storey, part two storey rear extension following the demolition of existing conservatory and part of rear ground floor extension.

    54 Valley Road Welwyn Garden City AL8 7DN

    Received 9 Apr 2018
  2. Decided - Refused6/2019/2485/FULL

    Erection of dwelling following demolition of existing dwelling

    7 Pine Grove, Brookmans Park, Hatfield, AL9 7BP

    Received 7 Oct 2019
  3. Decided6/2022/1175/TC

    T1 - Yew Tree - Looking to be felled and the stump to be ground out to 15cm below ground level to increase space and the light in the garden

    203 Handside Lane Welwyn Garden City AL8 6TE

    Received 23 May 2022
  4. Decided - Granted6/2019/1391/TC

    Reduce mixed shrubs (G1) to 12ft Reduce 2 x Apple Trees (G2) Reduce 1 x Hornbeam tree (T1) by 2.4m

    35 Ayot Green Ayot St Peter Welwyn AL6 9AB

    Received 11 Jun 2019
  5. Decided - Granted6/2018/1771/HOUSE

    Erection of single storey side/rear extension

    34 Oaklands Avenue Brookmans Park Hatfield AL9 7UJ

    Received 5 Jul 2018
  6. Under Consideration6/2026/0573/LAWP

    Certificate of lawfulness for the erection of a mobile home

    Woodside Garden Lodge Wildhill Road Hatfield AL9 6DD

    Received 30 Mar 2026
  7. Decided - Granted6/2018/2805/EM

    Removal of mixed hedgerow and replacement with yew hedging

    11 Sherrardspark Road Welwyn Garden City AL8 7JW

    Received 31 Oct 2018
  8. Decided - Granted6/2019/1350/COND

    Submission of details pursuant to condition 3a and 3b (Contamination) on planning permission 6/2018/1922/FULL

    Premier Inn Stanborough Road Welwyn Garden City AL8 6DQ

    Received 5 Jun 2019
  9. Decided - Granted6/2024/0976/FULL

    Change of use from residential to education (Class F1)

    The Teachers House 14 London Road Woolmer Green SG3 6JP

    Received 24 May 2024
  10. Decided - Refused6/2018/2811/LAWP

    Certificate of lawfulness for detached double garage with pitched roof

    47 Great North Road Brookmans Park Hatfield AL9 6LB

    Received 31 Oct 2018
  11. Decided - Granted6/2023/1090/HOUSE

    Erection of a single storey side and rear extension, two storey rear extension, alteration and enlargement of roof, 5 x front, side, rear dormers, 2 x side roof lights and front bay window

    18 Plough Hill Cuffley Potters Bar EN6 4DR

    Received 23 May 2023
  12. Decided6/2019/2689/TC

    Reduce 1 x Elder tree by 75%

    30 Youngs Rise Welwyn Garden City AL8 6RU

    Received 24 Oct 2019
  13. Decided - Granted6/2025/2626/LB

    Replace existing roof tiles and flashings with like-for-like materials and structural improvements to roof

    45 High Street Welwyn AL6 9EH

    Received 30 Dec 2025
  14. Decided - Granted6/2022/2800/COND

    Submission of details pursuant to condition 1 (roof), on planning permission 6/2022/2239/HOUSE

    115 Tolmers Road Cuffley Potters Bar EN6 4JL

    Received 9 Dec 2022
  15. Decided - Granted6/2018/2451/HOUSE

    Erection of front porch, single storey front, side and rear extensions following demolition of existing rear extension and conversion of outbuilding to habitable space

    12 The Gardens Brookmans Park Hatfield AL9 7UL

    Received 25 Sept 2018
  16. Decided - Granted6/2025/0518/HOUSE

    Replacement roof including the installation of rear rooflights, the erection of a ground floor rear extension and fenestration alterations

    39 Sandpit Road Welwyn Garden City AL7 3TW

    Received 19 Mar 2025
  17. Decided - Granted6/2021/1086/COND

    Submission of details pursuant to condition number 1 (sample materials) on planning permission 6/2019/0984/HOUSE

    50 Church Road Welwyn Garden City AL8 6QJ

    Received 1 Apr 2021
  18. Decided - Granted6/2020/2744/HOUSE

    Erection of single story front extension

    19 Chalgrove Welwyn Garden City AL7 2QJ

    Received 21 Oct 2020
  19. Decided - Granted6/2020/2332/LAWP

    Certificate of lawfulness for the erection of a single storey rear extension following the demolition of existing conservatory.

    178 Thistle Grove Welwyn Garden City AL7 4AJ

    Received 10 Sept 2020
  20. Decided - Granted6/2024/1643/EMT

    Ash tree to fell due to ash die back. No replanting due to other existing trees within property. Rear garden ///hope.dare.stone ash tree closest dwelling, green blob on plan

    150 Blythway Welwyn Garden City AL7 1DU

    Received 28 Aug 2024
  21. Decided - Granted6/2026/0972/EMT

    3 x Elms (dead) to remove to ground level. 1 x Oak to reduce decayed stem by around 3m. Reduce small overextended stem by 1.5m. 1 x Lawson Cypress to remove to ground level.

    1 The Orchard Welwyn Garden City AL8 7PL

    Received 2 Jun 2026
  22. Decided - Granted6/2022/0761/EM

    Conversion of garage, single storey rear extension, raised patio and loft conversion with rear facing dormers

    13 Colgrove Welwyn Garden City AL8 6HY

    Received 29 Mar 2022
  23. Decided - Granted6/2023/2508/LAWP

    Certificate of lawfulness for a loft conversion with hip to gable extension with formation of side and rear dormer

    81 Bramble Road Hatfield AL10 9SB

    Received 18 Dec 2023
  24. Decided - Granted6/2021/3435/HOUSE

    Retention of the installation of bow window to facilitate the conversion of garage into habitable space and erection of single storey front extension

    8 Skimpans Close Welham Green Hatfield AL9 7PB

    Received 8 Dec 2021

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