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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
29,573Searchable applications
307Recorded as pending
87%Approval rate · 24,558 approved or refused records
3,266Refused applications

21,292 approved · 3,266 refused · 1,571 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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 - GrantedN6/2015/1099/FP

    Retention of single storey building for use as GP-LED Health Care Centre

    Spring House Medical Centre, Ascots Lane, Welwyn Garden City, AL7 4HL

    Received 27 May 2015
  2. Decided - Refused6/2017/2809/EM

    Erection of single storey rear extension with glass canopy to side, part garage conversion, alterations to existing side windows, enlargement of side dormer & installation of 2 x dormers and 1 x rooflight to facilitate loft conversion

    14 Roundwood Drive Welwyn Garden City AL8 7JZ

    Received 30 Nov 2017
  3. Decided - Granted6/2026/1179/EMT

    Reduce 1 x Oak by 1.5m in height and width

    75 Rosedale, Welwyn Garden City, AL7 1DP

    Received 7 Jul 2026
  4. Decided - Granted6/2021/0227/EM

    Erection of a 7m x 3.5m outbuilding to be used as habitable accommodation

    37 Rosedale Welwyn Garden City AL7 1DW

    Received 25 Jan 2021
  5. Decided - Withdrawn6/2026/1111/HOUSE

    Proposed vehicular crossover and hardstanding

    120 Broadwater Road Welwyn Garden City AL7 3BZ

    Received 26 Jun 2026
  6. Decided - Granted6/2017/1303/VAR

    Variation of condition 2 (approved plans) on planning permission S6/2012/1928/PP dated 30/01/2013

    University Of Hertfordshire College Lane Hatfield AL10 9AB

    Received 14 Jun 2017
  7. Decided - Granted6/2023/1487/FULL

    Erection of dwelling following the demolition of existing dwelling

    6 High Ridge Cuffley Potters Bar EN6 4JH

    Received 17 Jul 2023
  8. Decided - GrantedW6/2013/2314/TE

    Fell Sycamore tree

    5 Malmsdale, WELWYN GARDEN CITY, AL8 7QN

    Received 20 Sept 2013
  9. Decided - Granted6/2024/0879/TPO

    Dead and Dangerous tree application 1 x Pine - Fell to ground level as it is dead covered by TP0 774 (2018)

    Presbytery 141 Woodhall Lane Welwyn Garden City AL7 3TP

    Received 9 May 2024
  10. Appeal Decided - AllowedN6/2014/1379/FP

    Erection of two storey rear extension

    22 Mardley Hill Welwyn AL6 0TS

    Received 18 Jun 2014
  11. Decided - GrantedN6/2014/0836/DS

    Approval of details reserved by condition 3 (materials) of planning permission N6/2014/0085/FP

    1st Welwyn Scout Group, Lockleys Drive Scout Hut, Lockleys Drive, Welwyn, AL6 9NT

    Received 16 Apr 2014
  12. Decided - Refused6/2016/1817/COND

    Approval of details reserved by condition 6 (Birch Court Temporary Parking Plan) on reserved matters application 6/2015/1901/RM

    Queen Elizabeth II Hospital, Howlands, Welwyn Garden City, AL7 4HQ

    Received 2 Sept 2016
  13. Decided - Granted6/2016/0625/TPO

    Removal of deadwood from Cherry tree - Conservation Area

    9 Handside Green, Welwyn Garden City, AL8 6SQ

    Received 24 Mar 2016
  14. Decided - Granted6/2018/0757/LAWP

    Certificate of lawfulness for loft conversion including installation of rear dormer

    7 Strawmead Hatfield AL10 0JG

    Received 20 Mar 2018
  15. Decided - Withdrawn6/2025/0067/OUTLINE

    Outline planning application with all matters reserved, except for access, for the erection of 9 dwellings and the demolition of the existing built form.

    9 The Avenue Welwyn AL6 0PN

    Received 16 Jan 2025
  16. Decided - Granted6/2021/3100/EM

    Erection of single storey rear and side extension following demolition of existing single storey rear and side extension

    3 Elmwood Welwyn Garden City AL8 6LD

    Received 29 Oct 2021
  17. Decided - Granted6/2026/0537/EMT

    T1 x Cherry plum to fell

    72 Great Ganett Welwyn Garden City AL7 3DE

    Received 24 Mar 2026
  18. Decided - Granted6/2026/0540/EMT

    1 x Sycamore to fell to ground level - Extensive Decay of main stem approx 2m Below most recent pruning points 2 x Sycamore to repollard - Maintain suitable height and eleviate weigh of weak regrowth 1 x dead Cherry Plum stem to remove to ground level - Dead standing stem being held up by neighbouring tree

    48 Elmwood Welwyn Garden City AL8 6LE

    Received 24 Mar 2026
  19. Decided - Granted6/2015/2482/PN8

    Prior approval for the erection of single storey rear extension measuring 6m deep and 2.75m height, with height of eaves at 2.45m

    21 Oaklands Avenue, Brookmans Park, Hatfield, AL9 7UH

    Received 16 Dec 2015
  20. Decided - Granted6/2015/2478/COND

    Approval of details reserved by condition 12 (bin storage) on planning application N6/2014/1219/FP

    Garages at Maple Grove, Welwyn Garden City, AL7 1NN

    Received 8 Dec 2015
  21. Decided - Refused6/2016/1087/FULL

    Erection of a single storey side extension and change of use of part of land to side of property, from amenity land to residential land

    63 Wellcroft Road, Welwyn Garden City, AL7 3JX

    Received 2 Jun 2016
  22. Decided - Granted6/2024/1647/HOUSE

    Erection of a single storey rear extension

    96 Roe Green Lane Hatfield AL10 0SJ

    Received 29 Aug 2024
  23. Decided - Granted6/2016/1694/HOUSE

    Erection of single storey rear extension

    26 Reddings, Welwyn Garden City, AL8 7LA

    Received 18 Aug 2016
  24. Decided - Granted6/2024/0685/VAR

    Variation of condition 2 (approved plans) on planning permission 6/2022/2881/HOUSE, with alterations to the approved plans to include new windows in the front and side first floor elevation

    15 High Oaks Road Welwyn Garden City AL8 7BJ

    Received 11 Apr 2024

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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