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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
29,865Searchable applications
307Recorded as pending
87%Approval rate · 24,813 approved or refused records
3,296Refused applications

21,517 approved · 3,296 refused · 1,588 withdrawn. Received dates in our records: 29 Apr 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 Counts reflect the last collected status; some records may be out of date.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. Decided6/2017/2353/EM

    Reduce height of leylandii tree at the bottom of garden by 50%

    33 Reddings Welwyn Garden City AL8 7LA

    Received 10 Oct 2017
  2. Decided - RefusedS6/2015/1107/FP

    Retention of modified land levels and further land remodelling to agreed contours

    Spike Island Hornbeam Lane Brookmans Park

    Received 26 May 2015
  3. Appeal Decided - Allowed6/2019/1084/HOUSE

    Erection of a two storey rear extension and two single storey side extensions following demolition of existing garage and store

    7 Dudley Hill Close Welwyn AL6 0QQ

    Received 7 May 2019
  4. Decided - Withdrawn6/2019/2628/EM

    Enlargement of driveway and dropped kerb

    34 Coneydale Welwyn Garden City AL8 7RZ

    Received 17 Oct 2019
  5. Decided - Granted6/2017/0667/VAR

    Variation of condition 1 (approved plans) on planning permission N6/2015/1130/FP

    Land to the rear of 31-39 Cowper Road Welwyn Garden City AL7 3LS

    Received 3 Apr 2017
  6. Decided - Granted6/2018/0827/COND

    Submission of details pursuant to condition 13 (reporting of contamination) of planning permission 6/2017/0550/MAJ

    Plot 6000 Land adjacent to Porsche Garage Hatfield Avenue Hatfield Business Park Hatfield AL10 9UA

    Received 28 Mar 2018
  7. DecidedS6/2015/0518/CD

    Application to the local magistrates court for stopping up of part of the highway

    Queensway/Woods Avenue, Hatfield, AL10 8NN

    Received 11 Mar 2015
  8. Decided - Granted6/2021/2284/EM

    Erection of a 6m (W) x 3m (D) x 2.5m (H) garden studio in rear garden.

    31 Great Break Welwyn Garden City AL7 3EZ

    Received 29 Jul 2021
  9. Decided - Granted6/2025/1504/COND

    Submission of details pursuant to condition number 4 (Landscaping Scheme) and 5 (Sustainable Design Statement) on planning permission 6/2024/0042/FULL (Appeal APP/C1950/W/24/3341182)

    Brockfield Stables Homerswood Lane AL6 9AD

    Received 10 Jul 2025
  10. Decided - Granted6/2019/2597/TPO

    Reduce 1 x Oak (T1) crown by 20%

    17 Oaklands Rise Welwyn AL6 0RN

    Received 14 Oct 2019
  11. Decided - Granted6/2020/3468/HOUSE

    Erection of single storey rear extension, extension of existing raised patio, garage conversion, internal alterations and alterations to fenestration

    152 Tolmers Road Cuffley Potters Bar EN6 4JR

    Received 31 Dec 2020
  12. Decided - Granted6/2026/0009/EM

    Installation of EV charger

    9 The Quadrangle Welwyn Garden City AL8 6SG

    Received 5 Jan 2026
  13. Decided - Granted6/2018/1234/LAWP

    Certificate of lawfulness for the installation of 3 rooflights to facilitate loft conversion to habitable space and erection of a single storey rear extension

    4 Stacklands Welwyn Garden City AL8 6XW

    Received 9 May 2018
  14. Decided - Refused6/2025/1789/PN8

    Prior approval for the erection of a single rear extension measuring 6m in depth, 2.91m in height and 2.91m to the eaves

    9 Hill Rise Cuffley Potters Bar EN6 4ED

    Received 22 Aug 2025
  15. Decided - Granted6/2026/1385/PN14

    Prior approval for demolition of existing carpark building

    Car Park at Bishops Square Hatfield Business Park Hatfield AL10 9NE

    Received 5 Aug 2026
  16. Decided - Granted6/2025/1431/EMT

    Reduce 1 x Sycamore by 3m in height and 2m in width

    236 Howlands Welwyn Garden City AL7 4HF

    Received 7 Jul 2025
  17. Decided6/2018/2934/TPO

    Fell 1x T1 Cherry and grind stump -Conservation area

    10 Fore Street Hatfield AL9 5AH

    Received 14 Nov 2018
  18. Decided6/2019/0847/TPO

    Fell 1x Hawthorn and 1x Ash Tree -Conservation area

    Opposite Ayot Farm Bibbs Hall Lane Ayot St. Lawrence Welwyn AL6 9BU

    Received 29 Mar 2019
  19. Decided - Granted6/2024/0825/LAWP

    Certificate of lawfulness for the erection of 2 x outbuildings in the rear garden

    Hanyards 12 The Ridgeway Cuffley Potters Bar EN6 4AR

    Received 1 May 2024
  20. Decided - Granted6/2024/0287/COND

    Confirmation that conditions 1 (Development Date), 2 (Approved Plans), 3 (Material samples), 4 (Landscape plans), 5 (Surface Water Drainage), 6 (Construction Method Statement), 7 (Remediation Scheme), 8 (On-site Car Park), 9 (Car park area), 10 (Landscape Details), 11 (Windows) and 12 (General Permitted Development) on planning permission N6/2015/0234/FP have been discharged

    7 Sterling Court Mundells Welwyn Garden City AL7 1FZ

    Received 12 Feb 2024
  21. Decided - Granted6/2018/1499/HOUSE

    Erection of a single storey rear extension to include alterations to openings and insertion of roof lantern to existing rear flat roof

    26 Elmwood Welwyn Garden City AL8 6LE

    Received 5 Jun 2018
  22. Decided - Granted6/2019/2374/HOUSE

    Erection of conservatory following demolition of existing and installation of two rear dormers

    31 The Grove Brookmans Park Hatfield AL9 7RL

    Received 25 Sept 2019
  23. Decided6/2023/2434/TC

    Fell dead tree of unknown species Prune willow tree in rear garden by 2-2.5m Reduce crab apple tree in front garden 15% in height and 10% in circumference.

    35 Turmore Dale Welwyn Garden City AL8 6HT

    Received 4 Dec 2023
  24. Decided - Granted6/2017/1834/COND

    Submission of details pursuant to condition 1 (materials samples) on planning permission 6/2016/2432/FULL, dated 12/01/2017

    19 Woodland Way Welwyn AL6 0RX

    Received 17 Aug 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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