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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
23,782Searchable applications
313Recorded as pending
86%Approval rate · 19,448 approved or refused records
2,709Refused applications

16,739 approved · 2,709 refused · 1,230 withdrawn. Received dates in our records: 5 Jan 2005 to 2 Oct 2026. Most recent record check: 14 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 Counts reflect the last collected status; some records may be out of date.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 - Withdrawn6/2026/0740/FULL

    Erection of a single storey detached dwelling with basement

    Land to the rear of 8 Birds Close Welwyn Garden City AL7 4AR

    Received 27 Apr 2026
  2. Decided6/2019/3067/TC

    Fell 1 x Cherry tree T1

    43 Sherrardspark Road Welwyn Garden City AL8 7LD

    Received 4 Dec 2019
  3. Decided - Granted6/2021/3531/EM

    Erection of a single storey side/rear infill extension and a single storey rear extension, to include insertion of 1 x roof light into existing roof and 1 x raised roof light into proposed roof and erection of raised patio area.

    3 Pentley Park Welwyn Garden City AL8 7RT

    Received 21 Dec 2021
  4. Decided - Granted6/2021/2876/LAWP

    Certificate of Lawfulness for proposed garage conversion

    7 Oaklea Welwyn AL6 0PT

    Received 6 Oct 2021
  5. Decided - Granted6/2020/3259/LAWP

    Certificate of lawfulness for hip-to-gable loft conversion to include erection of rear facing dormer and insertion of 4 x front facing roof lights

    64 Homestead Lane Welwyn Garden City AL7 4NF

    Received 4 Dec 2020
  6. Decided - Granted6/2023/2193/EM

    Installation of roof lantern to existing side flat roof

    4 Barleycroft Green Welwyn Garden City AL8 6JY

    Received 27 Oct 2023
  7. Decided6/2025/2448/TC

    Two yews pruned 25%. Holly tree pruned 25%.

    10 Roundwood Drive Welwyn Garden City AL8 7JZ

    Received 24 Nov 2025
  8. Decided - Granted6/2023/0113/EMT

    Reduce 1 x weeping willow by 1.6m

    6 Lytton Gardens Welwyn Garden City AL8 6EG

    Received 16 Jan 2023
  9. Decided - Granted6/2024/2179/EMT

    1 x Lawson cypress to remove to ground level. 1 x Group of hornbeams to cut back to clear phone lines by 0.5m, and to reduce lateral growth by 3m over garden area.

    24 Little Ganett Welwyn Garden City AL7 3DG

    Received 12 Nov 2024
  10. Decided - Granted6/2024/0139/TPO

    Pollard two sweet spanish chestnut trees, marked as T1 & T2 , back to previous points on plan to keep them in good condition and maintain current size

    23 Marlborough Close Welwyn AL6 0UG

    Received 25 Jan 2024
  11. Decided - Granted6/2019/0040/EM

    Reduce 3 x Maple trees by 10-12 feet and 1 x Birch tree by 8 feet

    9 Stonemead Welwyn Garden City AL8 7LX

    Received 8 Jan 2019
  12. Decided - Granted6/2024/0537/PN27

    Prior approval for the construction of an additional storey to facilitate the enlargement of the dwellinghouse to a maximum of approximately 8.85m in height

    24 Fulling Mill Lane Welwyn AL6 9NS

    Received 19 Mar 2024
  13. Decided - Granted6/2017/2927/TPO

    Reduce crown of 1 x Hornbeam by 25 % and 1 x Hornbeam by 30 % covered by TPO 103 (1985)

    3 Copper Beeches Welwyn AL6 0SS

    Received 18 Dec 2017
  14. Decided - Granted6/2022/1122/COND

    Submission of details pursuant to Condition 1 (materials) on plannng reference 6/2021/2481/FULL

    23A The Ridgeway Cuffley Potters Bar EN6 4BB

    Received 16 May 2022
  15. Decided - Withdrawn6/2024/1250/LAWE

    Certificate of lawfulness for the existing erection of a shed for business use

    50 Bullens Green Lane Hatfield AL4 0QS

    Received 4 Jul 2024
  16. Decided - Withdrawn6/2017/2405/FULL

    Installation of 4 x front and 3 x rear dormer windows and raising of roof height to facilitate conversion of loft, creating a single residential dwelling (Class C3)

    8 Howardsgate Welwyn Garden City AL8 6BQ

    Received 19 Oct 2017
  17. Decided - Granted6/2022/0944/TPO

    T2 - Hornbeam (Common) - Crown reduce by 3.5m – 4m all around to achieve a crown volume reduction in line with BRE IP7/06.

    14 Mandeville Rise Welwyn Garden City Hertfordshire AL8 7JU

    Received 21 Apr 2022
  18. Appeal Decided - Dismissed6/2019/2546/HOUSE

    Erection of first floor side extension and installation of new window to rear elevation

    35 Templewood Welwyn Garden City AL8 7HS

    Received 10 Oct 2019
  19. Decided6/2023/1925/PN10

    Prior approval for a change of use from agricultural building to five dwellings

    Park Farm Northaw Road West Northaw EN6 4NS

    Received 18 Sept 2023
  20. Decided - Granted6/2025/1370/HOUSE

    Erection of a single storey rear conservatory

    91 Warren Way Digswell Welwyn AL6 0DL

    Received 1 Jul 2025
  21. Decided - Granted6/2025/2563/EMT

    T1 - 1 x Beech left-hand stem over footpath and road to reduce by 4 metres. Branch over roadway to reduce by 3 metres. Branch over right side of footpath to reduce by 2.5 metres and lift to 5 metres over roadway. Remove ivy clad dead Cherry from within the canopy. Beech to reduce lower canopy as heavily extended over roadway and footpath. Remove cherry as dead and ivy clad T2 - 1 x Rowan to remove in sections to ground level To remove to ground level due to canopy in severe decline

    29 Digswell Park Road Welwyn Garden City AL8 7NW

    Received 12 Dec 2025
  22. Decided - Withdrawn6/2017/0739/FULL

    Installation of 1x internally illuminated fascia sign.

    51 Bradmore Green Brookmans Park Hatfield AL9 7QS

    Received 12 Apr 2017
  23. Decided - Granted6/2024/1028/HOUSE

    Erection of timber clad single storey garden room and associated landscaping

    42 Firs Wood Close Northaw Potters Bar EN6 4BY

    Received 3 Jun 2024
  24. Decided - Refused6/2022/1890/LAWE

    Certificate of lawfulness for the existing use of land as residential curtilage

    30 Reynards Road Welwyn AL6 9TP

    Received 12 Aug 2022

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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