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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
31,016Searchable applications
303Recorded as pending
87%Approval rate · 25,847 approved or refused records
3,394Refused applications

22,453 approved · 3,394 refused · 1,645 withdrawn. Received dates in our records: 29 Apr 1948 to 13 Oct 2026. Most recent record check: 19 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2021/2908/EMH

    Erection of a single storey front and rear extension, insertion of 1 x rear dormer, and extension to gable wall to left front elevation

    13 Digswell Park Road Welwyn Garden City AL8 7NW

    Received 8 Oct 2021
  2. Decided - Granted6/2026/0316/TPO

    TPO 1156 Large Beech tree to reduce lowest limb by 2-3 metres

    41 Warren Way Digswell Welwyn AL6 0DQ

    Received 20 Feb 2026
  3. Decided - GrantedN6/2013/2739/TC

    Reduce 2 Oak trees by 20%

    3 Guessens Walk, Welwyn Garden City, AL8 6QS

    Received 22 Nov 2013
  4. Decided - Granted6/2022/1686/EMT

    Coppicing of mature ash tree T4 that is in decline with Ash Dieback. It is hoped that a new tree will develop from the new strong growth that is apparent at the base of the tree

    12 Mandeville Rise Welwyn Garden City AL8 7JU

    Received 18 Jul 2022
  5. Decided - Granted6/2023/0123/COND

    Submission of details pursuant to condition 1 (Construction Management Plan) on planning permission 6/2019/2431/MAJ

    Link Drive Car Park Link Drive Hatfield AL10 8TY

    Received 17 Jan 2023
  6. Decided - Granted6/2023/0209/HOUSE

    Erection of a single storey side and rear extension

    2 Howlands Welwyn Garden City Hertfordshire AL7 4RD

    Received 27 Jan 2023
  7. Decided - Refused6/2017/1085/EM

    Erection of a single storey rear extension and extension of existing front porch

    5 The Spinney Welwyn Garden City AL7 3EG

    Received 19 May 2017
  8. Decided - Granted6/2021/1863/EMT

    1 x Hornbeam - cut back lateral growth over greenhouse by 1.5m

    13 Colgrove Welwyn Garden City AL8 6HY

    Received 16 Jun 2021
  9. Decided - GrantedW6/2013/1310/EM

    Installation of roof light in side elevation

    7 Attimore Close, WELWYN GARDEN CITY, AL8 6LN

    Received 20 Jun 2013
  10. Decided - Granted6/2015/1723/COND

    Approval of details reserved by condition 3 (details of the approved roof lights, including plans and elevations) & condition 4 (details of the aluminium trim to parapet/fascia and manufacturers details and colour) on S6/2015/0572/LB

    41 The Ryde Hatfield AL9 5DQ

    Received 13 Aug 2015
  11. Decided - Withdrawn6/2020/0035/HOUSE

    Erection of single storey rear extension

    109 Warren Way Digswell Welwyn AL6 0DL

    Received 9 Jan 2020
  12. Decided - Refused6/2026/0584/HOUSE

    Loft conversion with rear dormer

    35 Sandpit Road Welwyn Garden City AL7 3TW

    Received 1 Apr 2026
  13. Decided - Granted6/2023/2369/TPO

    Hornbeam lopping. Tree deprived of light and is straggly. To reduce by 20% in order to retain shape and reduce size Tpo 907

    3 Sherrards Mews Rectory Road Welwyn Garden City AL8 7AX

    Received 23 Nov 2023
  14. Decided - Granted6/2022/0924/HOUSE

    Erection of single storey rear garden room

    64 Moorlands Welwyn Garden City Hertfordshire AL7 4QG

    Received 19 Apr 2022
  15. Decided6/2021/3114/TC

    To trim lime tree back to previous cuts. The lime tree is in our hedge line and hangs over a pedestrian path. (this application is in addition to the permission approved to trim a larger lime and Beech earlier this year)

    30 Youngs Rise Welwyn Garden City AL8 6RU

    Received 1 Nov 2021
  16. Decided - Granted6/2023/2188/TPO

    Sycamore tree - deadwood and remove three lower limbs that are overhanging the neighbours' car park

    Acacia Mews Care Home St Albans Road East Hatfield AL10 0FJ

    Received 26 Oct 2023
  17. Decided - Refused6/2025/1810/HOUSE

    Erection of a part single, part two storey rear extension and two storey front extension, alterations to fenestration, internal changes and timber cladding to first floor

    9 Farm Close Cuffley Potters Bar EN6 4RQ

    Received 27 Aug 2025
  18. Decided - Granted6/2020/3303/EM

    Demolition of existing detached garage, replacement attached garage with single storey rear extension. Insertion of conservation rooflights and bulleyes windows to front and rear elevation, and new pitched roof outbuilding at rear of garden.

    9 Coneydale Welwyn Garden City AL8 7RX

    Received 8 Dec 2020
  19. Decided - Granted6/2018/3050/PN8

    Prior approval for the erection of single storey rear extension measuring 8.00m in depth, 3.225m in height, 3.00m to the eaves

    52 Pine Grove Brookmans Park Hatfield AL9 7BW

    Received 26 Nov 2018
  20. Decided - Granted6/2018/1569/EM

    Fell 1 x Bay( laurus Nobilis), Fell 1 x Cherry, Fell 1 x Bay (Laurus Nobilis)

    11 Fearnley Road Welwyn Garden City AL8 6HW

    Received 12 Jun 2018
  21. Decided - GrantedN6/2015/0774/HH

    Prior approval of single storey rear extension

    206 Thistle Grove, Welwyn Garden City, AL7 4AJ

    Received 9 Apr 2015
  22. Decided - GrantedS6/2013/2587/DS

    Discharge of conditions 6 (Verification Report) 7 (Ground Investigation) of planning permission S6/2013/1181/MA

    University of Hertfordshire, College Lane, Hatfield, AL10 9AB

    Received 2 Dec 2013
  23. Decided - Granted6/2018/2296/EM

    Installation of replacement windows

    455 Howlands Welwyn Garden City AL7 4HP

    Received 7 Sept 2018
  24. Decided - Granted6/2021/1517/EMH

    Erection of single storey side/front extension, single storey rear extension with insertion of roof light and replacing some glazing with facing brickwork to front existing window.

    25 Windhill Welwyn Garden City AL7 1RH

    Received 12 May 2021

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

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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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