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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
22,517Searchable applications
293Recorded as pending
86%Approval rate · 18,306 approved or refused records
2,588Refused applications

15,718 approved · 2,588 refused · 1,170 withdrawn. Received dates in our records: 5 Jan 2005 to 30 Sept 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 Counts reflect the last collected status; some records may be out of date.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
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 - Granted6/2020/0941/LAWP

    Certificate of lawfulness for the proposed stationing of a mobile shepherd's hut structure on the land edged in red and its use for purposes incidental and ancillary to the use of that land (including the use of the shepherd's hut for rest, washing, the storage of gardening tools and equipment, and for raising seeds and plants) for the growing of fruit and vegetables).

    2A Whitehill Welwyn AL6 9AF

    Received 27 Apr 2020
  2. Decided - Refused6/2017/1124/LAWP

    Certificate of Lawfulness for the erection of hip to gable roof, installation of rear dormer and rear rooflights to facilitate loft conversion

    14A Northaw Road West Northaw Potters Bar EN6 4NR

    Received 24 May 2017
  3. Decided - Granted6/2024/0918/EMT

    Fell 1 x Pear tree. Reduction of 1 x Apple tree by approximately 1.2m in height and width.

    19 Barleycroft Road Welwyn Garden City AL8 6JX

    Received 16 May 2024
  4. Decided - Granted6/2026/0842/HOUSE

    Erection of a single storey side extension

    57 Briars Lane Hatfield AL10 8EX

    Received 13 May 2026
  5. Decided - Granted6/2023/0713/PN15

    Prior approval for the installation of 15.0m phase 8 monopole and associated ancillary works

    Woodhall Lane Hatfield Hyde Welwyn Garden City AL7 4JL

    Received 29 Mar 2023
  6. Decided - Granted6/2024/1037/ADV

    Installation of 1 x illuminated fascia sign,1 x unilluminated disabled parking sign, 1 x unilluminated colleague parking sign 1 x unilluminated patient parking sign

    Shire Park Falcon Gate Falcon Way Welwyn Garden City Hertfordshire AL7 1TW

    Received 4 Jun 2024
  7. Decided6/2018/2346/DDD

    5 day notice to remove dead Horse Chestnut tree

    8 Handside Close Welwyn Garden City AL8 6SR

    Received 13 Sept 2018
  8. Decided - Withdrawn6/2018/1746/EM

    Erection of first floor side and two storey rear extensions including alterations to openings

    1 Palmerston Close Welwyn Garden City AL8 7DL

    Received 2 Jul 2018
  9. Decided - Granted6/2016/2398/PN8

    Prior approval for the erection of a flat roofed single storey rear extension measuring 8m. in depth, 3m. in height and 3m. to the eaves

    7 Rosecroft Lane Welwyn AL6 0UB

    Received 9 Nov 2016
  10. Decided - Granted6/2018/1450/COND

    Submission of details pursuant to condition 1 (materials), 2 (hard & soft landscape), 3 (boundary treatments) & 4 (construction management plan) on planning permission 6/2017/2366/VAR

    Garages adjacent to The Firs Welwyn Garden City AL8 7EA

    Received 30 May 2018
  11. Decided - Granted6/2018/1155/COND

    Submission of details pursuant to condition 6 (details of external lighting) on planning permission 6/2016/2214/MAJ.

    Gate House Fretherne Road Welwyn Garden City AL8 6NS

    Received 2 May 2018
  12. Decided - Granted6/2020/2945/LAWP

    Certificate of lawfulness for loft conversion with rear dormer and three velux windows to principle elevation.

    12 Mount Pleasant Lane Hatfield AL9 5BY

    Received 10 Nov 2020
  13. Decided - Granted6/2026/0201/EM

    Erection of ground floor rear extension following the removal of existing conservatory

    12 The Valley Green Welwyn Garden City AL8 7DQ

    Received 4 Feb 2026
  14. Decided - Granted6/2024/2231/HOUSE

    Erection of a single storey rear and side extension, two storey front extension with porch canopy, garage conversion including raising of roof and insertion of roof lights, render to existing front and rear elevations

    9 Greenfield Hatfield AL9 5HW

    Received 19 Nov 2024
  15. Decided6/2023/1027/TC

    Fell 1 Leyland Cypress tree

    65 Valley Road Welwyn Garden City AL8 7DR

    Received 16 May 2023
  16. Decided - Granted6/2023/2454/OUTLINE

    Outline permission for the erection of 2 dwellings with all matters reserved except for access and layout

    Swan Stables Woodside Lane Hatfield AL9 6DE

    Received 5 Dec 2023
  17. Decided - Refused6/2024/1054/HOUSE

    Installation of Juliette balcony on the rear elevation, 2x rooflights on the side elevation at first floor level, new circular window on the rear elevation at loft level with the repositioning of the windows on the front elevation at first floor level, following the removal of existing dormer windows at first floor level and windows on the rear elevation at first floor level.

    20 Roundwood Drive Welwyn Garden City AL8 7JZ

    Received 5 Jun 2024
  18. Decided - Granted6/2023/1131/EM

    Partial removal of front hedge for hardstand access adjacent to driveway

    1 Pentley Close Welwyn Garden City AL8 7SH

    Received 30 May 2023
  19. Decided6/2020/2750/TC

    Honey Locust to reduce by 3m height & reduce width by 1.5m to balance 1 x Field Maple to fell to ground level

    22 High Oaks Road Welwyn Garden City AL8 7BH

    Received 22 Oct 2020
  20. Decided - Granted6/2026/0629/EM

    Alterations to the existing rear part of the dwelling, including replacement of the existing sloping roof with a flat roof, and replacement of existing uPVC windows and French doors with full width white aluminium bifolding doors

    8 Moorside Welwyn Garden City AL7 4QH

    Received 9 Apr 2026
  21. Decided - Granted6/2023/1216/TPO

    1 x Cherry to fell to ground level - TPO 642 (2017) G1

    23 Hillside Way Welwyn AL6 0TY

    Received 8 Jun 2023
  22. Decided - Granted6/2021/0271/ADV

    Erection of illuminated fascia sign board and an illuminated double sided projecting sign.

    32 Fretherne Road Welwyn Garden City AL8 6NU

    Received 29 Jan 2021
  23. Decided - Withdrawn6/2022/0088/TPO

    Walnut tree - reduce the height and width by 40% in our garden for safety and general maintenance. The tree is not covered with specific TPO, however we believe it falls within the general TPO covering this area.

    9 The Drive Welwyn AL6 0TW

    Received 13 Jan 2022
  24. Decided - Refused6/2017/1009/HOUSE

    Erection of single storey rear extension at ground level

    111 Hatfield Road Little Heath Potters Bar EN6 1HZ

    Received 10 May 2017

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

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    Planning application documents: what to read first

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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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