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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
29,634Searchable applications
307Recorded as pending
87%Approval rate · 24,613 approved or refused records
3,274Refused applications

21,339 approved · 3,274 refused · 1,574 withdrawn. Received dates in our records: 15 Jun 1948 to 13 Oct 2026. Most recent record check: 18 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2021/2603/TPO

    English Oak - prune to about 12m in height and to not less than 6m in spread, near the old reduction points

    6 Mary Proud Court Oak Piece Welwyn AL6 0XG

    Received 7 Sept 2021
  2. Decided - Granted6/2015/1683/HOUSE

    Erection of single storey side and rear infill extension

    10 Kingsmead Cuffley Potters Bar EN6 4AN

    Received 11 Aug 2015
  3. Appeal Decided - Dismissed6/2019/3168/FULL

    Conversion of stables to one residential dwelling

    45 Dixons Hill Close Welham Green Hatfield AL9 7EF

    Received 17 Dec 2019
  4. Decided - Withdrawn6/2023/2559/HOUSE

    Erection of additional storey (part rear), single storey rear extension, front porch and alterations to the front driveway

    70 The Meadway Potters Bar EN6 4ES

    Received 28 Dec 2023
  5. Decided - Granted6/2019/1885/HOUSE

    Erection of a part single, part two-storey side extension, single storey rear extension and installation of a front dormer following demolition of existing garage and conservatory

    14 Wood View Cuffley Potters Bar EN6 4RE

    Received 1 Aug 2019
  6. Decided - Granted6/2021/2204/HOUSE

    Erection of a single storey rear extension

    31 Daniells Welwyn Garden City AL7 1QY

    Received 21 Jul 2021
  7. Decided - Granted6/2017/0386/EM

    Erection of single storey rear extension

    453 Howlands Welwyn Garden City AL7 4HP

    Received 28 Feb 2017
  8. Decided - GrantedN6/2014/1995/FP

    Erection of first floor rear extension, insertion of rooflight and new side window

    13 Brockswood Lane, Welwyn Garden City, AL8 7BA

    Received 8 Sept 2014
  9. Decided - Granted6/2024/1837/LAWP

    Certificate of lawfulness for the installation of a rear dormer window

    22 Pleasant Rise Hatfield AL9 5DU

    Received 24 Sept 2024
  10. Decided - Granted6/2017/2626/LAWP

    Certificate of lawfulness for the conversion of existing garage

    45 Homewood Avenue Cuffley Potters Bar EN6 4QQ

    Received 10 Nov 2017
  11. Decided - Refused6/2020/1398/LAWP

    Certificate of Lawfulness to increase garden size

    107 Campion Road Hatfield AL10 9FL

    Received 17 Jun 2020
  12. Decided - Granted6/2016/0755/COND

    Approval of details reserved by condition 2 (materials), condition 3 (landscaping), condition 4 (construction management plan), condition 5 (parking plan), condition 6 (cycle parking plan), condition 7 (noise) and condition 9 (reptile survey) on planning permission S6/2015/1061/MA

    Plot 6000, Hatfield Avenue, Hatfield Business Park, Hatfield, AL10 9UA

    Received 22 Apr 2016
  13. Decided - Granted6/2021/2247/HOUSE

    Erection of garage

    6 The Links Welwyn Garden City AL8 7DS

    Received 27 Jul 2021
  14. Decided - Granted6/2020/2788/VAR

    Variation of condition 4 (approved plans) on planning permission 6/2017/1903/FULL

    36 Salisbury Square Hatfield AL9 5AF

    Received 26 Oct 2020
  15. Decided - Granted6/2021/3354/HOUSE

    Erection of first floor side extension

    7 Halifax Way Welwyn Garden City AL7 2QH

    Received 29 Nov 2021
  16. Decided - Granted6/2018/2478/HOUSE

    Erection of part single, part two storey side extension and external alterations

    151 Harwood Hill Welwyn Garden City AL8 7AF

    Received 26 Sept 2018
  17. Decided - Granted6/2021/2249/EM

    Erection of garage

    6 The Links Welwyn Garden City AL8 7DS

    Received 27 Jul 2021
  18. Decided - Granted6/2016/0292/COND

    Approval of details reserved by condition 4 (SUDs), condition 5 (landscaping) and condition 6 (planting details) on planning permission 6/2015/2441/HOUSE

    5 Copse Hill Welwyn AL6 0RY

    Received 23 Feb 2016
  19. Decided - Granted6/2017/0332/TPO

    Fell Silver birch tree - Conservation Area

    52 Brockswood Lane Welwyn Garden City AL8 7BG

    Received 20 Feb 2017
  20. Decided - Granted6/2022/0927/FULL

    Erection of replacement dwelling

    108 Tolmers Road Cuffley Potters Bar Hertfordshire EN6 4JR

    Received 20 Apr 2022
  21. Decided - Granted6/2016/1793/TPO

    Within the rear garden of 45 Mardley Hill Fell small decayed oak, Reduce oak back to previous pruning points and crown lift to 4m. High pollard two oaks to leave a scaffold framework Within the rear garden of 47: Crown reduce oak by 25% by TPO 24 (1976)

    45 Mardley Hill Welwyn AL6 0TT

    Received 1 Sept 2016
  22. Decided6/2019/2790/TC

    Fell 1x Laurel tree Fell 2x Conifer trees Fell 1x Silver Birch tree

    49 Bridge Road Welwyn Garden City AL8 6UH

    Received 4 Nov 2019
  23. Decided - Granted6/2018/1029/FULL

    Erection of 9 houses (6 x 2-bedoom and 3 x 3-bedroom) and a community hall with associated parking and landscaping, following the demolition of existing church and dwelling.

    Diocesan Education Centre Hall Grove Welwyn Garden City AL7 4PJ

    Received 20 Apr 2018
  24. Decided - Refused6/2023/0727/EM

    Erection of single sided post sign

    Medivet 129 131 Mill Green Rd Welwyn Garden City AL7 3XB

    Received 31 Mar 2023

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.

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  • 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.

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  • 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.

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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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