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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
19,452Searchable applications
298Recorded as pending
86%Approval rate · 15,719 approved or refused records
2,184Refused applications

13,535 approved · 2,184 refused · 984 withdrawn. Received dates in our records: 5 Jan 2005 to 30 Sept 2026. Most recent record check: 12 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2019/1080/COND

    Submission of details pursuant to condition 8 (accessible homes) on planning permission 6/2018/2809/MAJ, dated 25/03/2019

    Queen Elizabeth Ii Hospital Howlands Welwyn Garden City AL7 4HQ

    Received 7 May 2019
  2. Decided - Granted6/2022/0683/HOUSE

    Single storey front extension and conversion of garage into habitable room

    95 Hatfield Road Little Heath Potters Bar Hertfordshire EN6 1HZ

    Received 22 Mar 2022
  3. Decided - Granted6/2026/0320/EMT

    Reduce Hornbeam crown by 30%

    3 Handside Green Welwyn Garden City AL8 6SQ

    Received 20 Feb 2026
  4. Decided - Granted6/2025/1285/HOUSE

    Installation of two side dormer windows including front hip-to-gable extension to facilitate the conversion of the loft to habitable space

    7 South Drive Cuffley Potters Bar EN6 4HP

    Received 20 Jun 2025
  5. Decided - Refused6/2021/0002/HOUSE

    Demolition of existing single storey side extension, and construction of two storey side extension and single story rear extension

    4 Hawthorns Welwyn Garden City AL8 7SE

    Received 4 Jan 2021
  6. Decided - Granted6/2023/2038/HOUSE

    Erection of front porch extension and rear open porch

    2 Acorn Glade Digswell Welwyn AL6 0AZ

    Received 4 Oct 2023
  7. Decided - Granted6/2025/2251/PN19

    Prior approval for the erection of an agricultural building measuring 30m in length, 12m in width, 3.96m to the eaves and 5.82m to the ridge

    Hill View Farm Northaw Road West Potters Bar EN6 4QY

    Received 23 Oct 2025
  8. Decided - Granted6/2024/0079/HOUSE

    Erection of part single and part two storey rear extension, garage conversion and front porch with insertion of window to side elevation

    14 Queens Avenue Welwyn Garden City AL7 4BZ

    Received 12 Jan 2024
  9. Decided - Refused6/2021/3173/FULL

    Alterations to building façade, and erection of 1 x trolley bay involving the removal of 1 x existing trolley bay

    71-73 Moors Walk Welwyn Garden City AL7 2BQ

    Received 5 Nov 2021
  10. Appeal Decided - Allowed6/2020/0714/MAJ

    Change of use of land from general industrial and storage (B2 and B8) to dwelling houses (C3) to facilitate erection of 7x dwellings following demolition of existing buildings

    Land at Oakleigh Farm Industrial Estate Codicote Road Welwyn AL6 9TY

    Received 13 Mar 2020
  11. Decided - Granted6/2020/3432/HOUSE

    Erection of a single storey side/rear extension and a single storey rear extension

    30 Melbourne Court Welwyn Garden City AL8 6LL

    Received 23 Dec 2020
  12. Decided - Granted6/2021/1549/PN8

    Prior approval for the erection of a single storey rear extension measuring 4.10m in depth, 3.74m in height and 2.55 to the eaves

    7 Norman Road Welwyn AL6 9JW

    Received 13 May 2021
  13. Decided - Granted6/2025/1021/HOUSE

    Erection of part-single part-two storey side and rear extensions, first floor front extension with front portico, together with internal alterations following demolition of existing conservatory and side extension

    17 Thrush Lane Cuffley Potters Bar EN6 4JT

    Received 30 May 2025
  14. Decided - Granted6/2020/2433/HOUSE

    Erection of single storey extension to rear.

    9 Falcon Close Hatfield AL10 8QY

    Received 23 Sept 2020
  15. Decided - Granted6/2020/0066/EM

    Erection of part two storey storey side, and two storey rear extension

    15 Broadfield Place Welwyn Garden City AL8 6LJ

    Received 13 Jan 2020
  16. Decided - Granted6/2019/1943/LAWLB

    Certificate of lawfulness for proposed work to listed building to include sole plate and stud repairs to north gable,north east corner of main barn,western wall,north west corner of main barn and wall plate and rafter repairs to northern wall,north east corner of adjacent single-storey barn

    Brewhouse Farm Wildhill Road Brookmans Park Hatfield AL9 6DS

    Received 6 Aug 2019
  17. Decided - Granted6/2020/2609/HOUSE

    Erection of a white PVCU framed conservatory to the rear of the property

    3 Walden Road Welwyn Garden City AL8 7PE

    Received 8 Oct 2020
  18. Decided - Granted6/2020/2222/LAWP

    Certificate of Lawfulness for the erection of single storey side extension.

    1 Longlands Road Welwyn Garden City AL7 3QD

    Received 1 Sept 2020
  19. Decided - Granted6/2020/3253/EM

    Formation of on site parking facilities for two cars with paved area, increase width of existing opening through hedge to permit vehicle to pass and construction of crossover.

    91 Broomhills Welwyn Garden City AL7 1RE

    Received 3 Dec 2020
  20. Decided - Granted6/2018/3283/HOUSE

    Conversion of existing storage shed into a music rehearsal room

    Hill House Wildhill Road Hatfield AL9 6EB

    Received 28 Dec 2018
  21. Decided6/2023/2056/TC

    Sycamore tree - to fell the dead roadside tree that is infected with Sooty Bark disease. It has already lost a significant limb and posing a risk to neighbouring traffic

    The Limes 51 High Road Essendon Hatfield AL9 6HS

    Received 6 Oct 2023
  22. Decided - Granted6/2019/3246/HOUSE

    Erection of a single storey side and part two storey, part single storey rear extension following demolition of existing conservatory and alterations to fenestration

    5 Wheatley Road Welwyn Garden City AL7 3LL

    Received 24 Dec 2019
  23. Decided - Granted6/2018/1978/COND

    Submission of details pursuant to condition 4 (hard and soft landscaping details) on planning permission 6/2018/0337/FULL

    7 Lanercost Close Welwyn AL6 0RW

    Received 26 Jul 2018
  24. Decided6/2019/0867/TC

    Reduce 1 x Holly tree by 2.5 metres in height, 1 x Lawson Cypress tree by 4 metres in height & remove left stem and 1 x Cherry tree by 2.5 metres in height and 1.5 metres in width - Conservation Area

    1 The Orchard Welwyn Garden City AL8 7PL

    Received 10 Apr 2019

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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    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.

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    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.

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    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.

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