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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
33,318Searchable applications
313Recorded as pending
87%Approval rate · 27,885 approved or refused records
3,643Refused applications

24,242 approved · 3,643 refused · 1,745 withdrawn. Received dates in our records: 29 Apr 1948 to 14 Oct 2026. Most recent record check: 21 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2020/1940/COND

    Submission of details perusant to Conditions 26, 32, 37, on planning permission 6/2017/1641/MAJ

    Onslow St Audreys School Old Rectory Drive Hatfield AL10 8AB

    Received 5 Aug 2020
  2. Decided - Granted6/2026/0345/EMT

    3 x Leyland Cypress to reduce by around 6ft in height

    110 Mill Green Road Welwyn Garden City AL7 3XE

    Received 24 Feb 2026
  3. Decided - GrantedS6/2009/2705/FP

    SINGLE AND TWO STOREY REAR EXTENSION AND ALTERATIONS TO INCLUDE BIN STORE, TERRACE, RETAINING WALLS, HARD SURFACING AND STAIRS

    5 HIGH RIDGE, CUFFLEY, POTTERS BAR, HERTFORDSHIRE, EN6 4JH

    Received 17 Dec 2009
  4. Decided - Withdrawn6/2022/0153/VAR

    Variation of condition 1 (approved plans/details) on planning permission 6/2020/1530/HOUSE

    76 Warren Way Digswell Welwyn AL6 0DN

    Received 21 Jan 2022
  5. Decided - Granted6/2025/0084/HOUSE

    Erection of a single storey rear extension with canopy, two storey part side and rear extension with replacement glazed balustrade

    19 The Holdings Hatfield AL9 5HH

    Received 20 Jan 2025
  6. Decided - Granted6/2022/2730/FULL

    Retention of alterations to an approved equestrian facility, granted under planning application ref: 6/2021/1677/HOUSE

    Ayot Farm Bibbs Hall Lane Ayot St Lawrence AL6 9BY

    Received 1 Dec 2022
  7. Decided - Refused6/2017/1698/LAWE

    Certificate of Lawfulness for existing use of dwelling as two self-contained units

    1 Meadow Croft Hatfield AL10 0SG

    Received 2 Aug 2017
  8. Decided - Granted6/2022/1551/HOUSE

    Replacement of existing conservatory with single storey rear extension

    1 Melbourne Court Welwyn Garden City AL8 6LL

    Received 4 Jul 2022
  9. Decided - Granted6/2025/1419/COND

    Submission of details pursuant of condition 1 (materials) on planning permission 6/2025/0034/LB

    26 Pentley Park Welwyn Garden City AL8 7SB

    Received 4 Jul 2025
  10. Decided - Granted6/2020/1164/EMT

    Reduce 1 x Sweet Chestnut Tree by 3m height & width

    157 Heronswood Road Welwyn Garden City AL7 3EJ

    Received 22 May 2020
  11. Under Consultation6/2026/1538/TPO

    Ground works and associated root pruning/ severance of T3 (Oak) and other trees not advised to be the subject of a TPO to facilitate installation of a root barrier 66m in length and 4m in depth TPO 580 (2016)

    Chine House Wild Hill Hatfield AL9 6EB

    Received 3 Sept 2026
  12. Decided - Refused6/2021/1306/EMH

    Loft conversion to include dormer to rear, erection of a single storey rear extension and glazed side shelter/walk-way area

    27 Furzefield Road Welwyn Garden City AL7 3RL

    Received 22 Apr 2021
  13. Decided - GrantedC6/1987/0383/FP

    Single storey rear externsion

    50 Woodland Rise, Welwyn Garden City, AL8 7LF

    Received 1 Jan 1987
  14. Decided6/2022/1964/TC

    1 x Ash (larger tree) To dismantle in sections to ground level using specialist rigging techniques to lower branches to the ground in a safe and manner - This tree has bracket fungus, is rotten in parts, and one heavy branch has already fallen off, endangering the neighbour's property. 1 x Ash to reduce over long limb over neighbouring property by approximately 5m, shorten secondary branches to balance shape.

    57 Longcroft Lane Welwyn Garden City Hertfordshire AL8 6EB

    Received 23 Aug 2022
  15. Decided - GrantedN6/2014/1945/FP

    Erection of single storey rear extension

    29 Glebe Road Welwyn AL6 9PB

    Received 2 Sept 2014
  16. Decided - Granted6/2016/0658/EM

    Erection of single storey rear extension following demolition of existing conservatory and workshop; insertion of window on side elevation

    10 Marsden Road, Welwyn Garden City, AL8 6XZ

    Received 8 Apr 2016
  17. Decided - Split6/2021/2960/COND

    Submission of details pursuant to planning condition 1 (submission of Remediation Scheme) against planning application 6/2019/1618/FULL

    Land and Garages at The Commons Welwyn Garden City, AL7 4RP.

    Received 14 Oct 2021
  18. Decided - RefusedS6/2013/2075/LUP

    Proposed erection of outbuilding

    32A Brookmans Avenue, Brookmans Park, Hatfield, AL9 7QJ

    Received 26 Sept 2013
  19. Decided - Refused6/2018/1693/EM

    Erection of part single storey, part two storey rear and side extensions

    1 The Links Welwyn Garden City AL8 7DS

    Received 26 Jun 2018
  20. Decided - Granted6/2018/0270/PN8

    Prior approval for the erection of a single storey rear extension measuring 6m in depth, 3m in height and 3m to the eaves

    8 Cecil Crescent Hatfield AL10 0HF

    Received 22 Jan 2018
  21. Decided - Granted6/2021/2046/COND

    Submission of details pursuant to condition 2 (landscaping and play area) on planning permission N6/2014/0208/DE

    Wilshere Park Welwyn The Frythe 5 Digswell Hill Welwyn AL6 9AL

    Received 6 Jul 2021
  22. Decided - Granted6/2018/1546/LAWP

    Certificate of lawfulness for the erection of a single storey rear extension, single storey front porch and driveway re-paved

    11 Wheatley Close Welwyn Garden City AL7 3LJ

    Received 11 Jun 2018
  23. Decided - Granted6/2015/1959/FULL

    Installation of 3no high level windows and reconfiguration of escape doors to rear elevation

    Next PLC, 29 The Howard Centre, Howardsgate, Welwyn Garden City, AL8 6HA

    Received 21 Sept 2015
  24. Decided - Refused6/2016/0164/EM

    Erection of single storey, part two storey rear extension and alterations to openings

    73 The Vineyard, Welwyn Garden City, AL8 7PY

    Received 28 Jan 2016

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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