PlanningTrack
Get started

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
30,988Searchable applications
303Recorded as pending
87%Approval rate · 25,820 approved or refused records
3,389Refused applications

22,431 approved · 3,389 refused · 1,645 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2017/2934/COND

    Submission of details pursuant to condition 1 (details of mechanical heat recovery ventilation/cooling system) on planning permission 6/2017/1519/PN11.

    Inspira House Martinfield Welwyn Garden City AL7 1GW

    Received 19 Dec 2017
  2. Decided - Granted6/2016/2522/FULL

    Change of use from amenity to garden land

    35 Endymion Road Hatfield AL10 8AT

    Received 28 Nov 2016
  3. Decided - Granted6/2017/2914/COND

    Submission of details pursuants to condition 2 (hard and soft landscaping plan) on planning permission 6/2017/1268/FULL

    Oshwal Centre Coopers Lane Road Northaw Potters Bar EN6 4DG

    Received 18 Dec 2017
  4. Decided - Granted6/2018/3153/HOUSE

    Erection of a single storey side extension and alterations to rear fenestration.

    54 Lemsford Lane Welwyn Garden City AL8 6YJ

    Received 11 Dec 2018
  5. Decided - Granted6/2018/0497/HOUSE

    Erection of a single storey rear extension

    363 St Albans Road West Hatfield AL10 9RU

    Received 20 Feb 2018
  6. Decided - Granted6/2025/1924/EMT

    7 of Hornbeam trees - Crown reduction by 25% and crown lifting by 10% to remove the lowest branches currently resting on and causing damage to fences

    154 Parkway Welwyn Garden City AL8 6HZ

    Received 8 Sept 2025
  7. Appeal Decided - Allowed6/2023/2558/HOUSE

    Retention of detached outbuilding, single storey side extension with loft accommodation within roof space and associated works including dormer windows and rooflights, single storey rear conservatory, alterations to main dwelling with an attached front garage and link extension

    95 Robbery Bottom Lane Welwyn Hertfordshire AL6 0UL

    Received 22 Dec 2023
  8. Decided - Granted6/2022/0770/EM

    T1 poplar to fell (including killing of tree stump). Proposed Tree Replacement: replacement with a silver birch.

    168 Parkway Welwyn Garden City AL8 6HZ

    Received 30 Mar 2022
  9. Decided - Granted6/2024/1570/PN10

    Prior approval for the change of use and conversion of existing agricultural storage building to one 3-bedroom dwelling

    Chestnut Farm Woodfield Lane Hatfield AL9 6JJ

    Received 19 Aug 2024
  10. Decided - Granted6/2023/1314/HOUSE

    Erection of single storey side extension, garage conversion with first floor side extension, alterations to porch and front boundary wall

    153 Tolmers Road Cuffley Potters Bar EN6 4JP

    Received 22 Jun 2023
  11. Decided - Granted6/2021/2685/EMT

    Reduce 2x Ash by 3m height and 2m width and remove major deadwood

    75 Newfields Welwyn Garden City AL8 6YS

    Received 16 Sept 2021
  12. Decided - Granted6/2023/2337/HOUSE

    Erection of single storey rear extension following demolition of existing conservatory, increase in ridge height, change main roof from hip to gable with insertion of two first floor side windows, conversion of loft to habitable space with 2x front and 1x rear dormers, installation of Juliet balcony, removal of chimney stack, and alteration from flat roof to gable roof of garage to accommodate storage space

    2A Kingswell Ride Cuffley Potters Bar Hertfordshire EN6 4LH

    Received 20 Nov 2023
  13. Decided - Refused6/2024/0348/LAWP

    Certificate of lawfulness for change of use from Acupuncture Herbal medicine (class E) to Sui Generis for a nail spa business

    39A Howardsgate Welwyn Garden City AL8 6AP

    Received 22 Feb 2024
  14. Decided - Refused6/2021/0719/HOUSE

    Erection of a single storey rear extension

    48 The Ryde Hatfield AL9 5DL

    Received 4 Mar 2021
  15. Decided - Refused6/2018/0275/HOUSE

    Erection of a two storey side and rear extension including alterations to roof following demolition of existing ground floor side extension

    19 The Avenue Welwyn AL6 0PW

    Received 29 Jan 2018
  16. Decided - Granted6/2017/1835/FULL

    Erection of a single storey barn for use as a dairy unit and repositioning of Poly Tunnels.

    Boltons Park Farm 44 Hawkshead Road Little Heath Potters Bar EN6 1NB

    Received 17 Aug 2017
  17. Decided - Granted6/2018/0269/EM

    Erection of a single storey rear 'wraparound' extension

    90 Parkway Welwyn Garden City AL8 6HL

    Received 29 Jan 2018
  18. Decided - GrantedN6/2015/0831/FP

    Erection of single storey extension following demolition of existing conservatory

    East House Digswell Place Rectory Road Welwyn Garden City AL8 7SU

    Received 16 Apr 2015
  19. Decided - Granted6/2024/0812/EMT

    15ft (4.5m) crown reduction to 11 conifer trees at rear of garden.

    36 Fordwich Road Welwyn Garden City AL8 6EY

    Received 30 Apr 2024
  20. Decided - Granted6/2025/1806/HOUSE

    Erection of a first floor side extension

    76 Longcroft Lane Welwyn Garden City AL8 6EF

    Received 26 Aug 2025
  21. Decided - Granted6/2020/0437/HOUSE

    Erection of a single storey rear and two storey side extensions

    25 Pentley Park Welwyn Garden City AL8 7RT

    Received 17 Feb 2020
  22. Decided - Granted6/2016/0341/HOUSE

    Erection of a rear ground floor conservatory

    7 Sunningdale Mews, Welwyn Garden City, AL7 1UP

    Received 29 Feb 2016
  23. Decided - Granted6/2026/0317/FULL

    Installation of a new entrance door in front facade of No 44

    44 Howardsgate Welwyn Garden City AL8 6BW

    Received 20 Feb 2026
  24. Decided - Granted6/2015/2233/HOUSE

    Erection of two storey rear, single storey side and rear extensions, porch and loft conversion

    2 Fearnley Road, Welwyn Garden City, AL8 6HW

    Received 3 Nov 2015

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.

    UK research
    Published Updated

  • 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.

    UK research
    Published Updated

  • 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.

    UK research
    Published Updated

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.

Check collection coverage

More planning authorities in England

Browse all authorities