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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
21,876Searchable applications
296Recorded as pending
86%Approval rate · 17,726 approved or refused records
2,515Refused applications

15,211 approved · 2,515 refused · 1,132 withdrawn. Received dates in our records: 5 Jan 2005 to 30 Sept 2026. Most recent record check: 13 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2021/2106/LAWP

    Certificate of lawfulness for an outbuiding to replace existing garage and workshops

    Hill House Waterend Lane Ayot St Peter Welwyn AL6 9BB

    Received 13 Jul 2021
  2. Decided6/2019/2673/TC

    Fell Line of Leyland Cypress Reduce 1 x Beech tree by 2m height & 1m width

    27 Rooks Hill Welwyn Garden City AL8 6EU

    Received 23 Oct 2019
  3. Decided - Refused6/2021/2737/COND

    Submission of details pusuant to condition 19 (details of cycle parking) on planning application 6/2018/0171/MAJ

    Former Shredded Wheat Factory Welwyn Garden City AL8 6UN

    Received 22 Sept 2021
  4. Decided - Granted6/2020/1270/TPO

    Reduce 2 x Oak Trees by 40% off limbs and 40% off height Reduce 1 x Ash Tree by 40% off limbs and 40% off height Covered by TPO 524 [2016 WI]

    9 York Way Welwyn AL6 9LB

    Received 4 Jun 2020
  5. Decided - Granted6/2022/2638/HOUSE

    Erection of single storey front/side extension

    24 Worcester Road Hatfield AL10 0DX

    Received 21 Nov 2022
  6. Decided - Granted6/2024/2286/EM

    Erection of two storey side, part single storey side and rear extension, following demolition of conservatory, plus addition of solar panels

    11 Pentley Close Welwyn Garden City AL8 7SH

    Received 27 Nov 2024
  7. Decided - Granted6/2022/2536/HOUSE

    Erection of outbuilding following the felling of 1 x Apple Tree

    37 Blakemere Road Welwyn Garden City AL8 7PQ

    Received 7 Nov 2022
  8. Decided - Granted6/2021/1606/EM

    Erection of a single storey rear extension following the demolition of existing conservatory, to create a party wall with No. 3 and No. 5 Little Rivers

    4 Little Rivers Welwyn Garden City AL7 1QJ

    Received 19 May 2021
  9. Decided - Granted6/2022/1559/EMT

    Lime Tree to front 30% crown reduction, 15% to 20% crown thinning, deadwood and lift crown to approximately 3m Beech tree to front. carry out 20% crown reduction, 10% crown thinning, deadwood and lift crown to 3m

    325 Knightsfield Welwyn Garden City AL8 7NJ

    Received 4 Jul 2022
  10. Decided6/2023/1967/TC

    T1 Lawson cypress fell - low quality tree, non native. Roots starting to damage drive and pavement. T2 Lawson cypress fell - large tree been left to grow in the wrong area. Rubbing on wall and roof of property potentially causing more damage if left

    35 Woodland Rise Welwyn Garden City AL8 7LJ

    Received 25 Sept 2023
  11. Decided - Refused6/2023/0588/FULL

    Change of use from amenity land to private driveway with hardstanding and dropped kerb to accommodate car parking and retrospective consent for a car charging point

    58 Hillcrest Hatfield AL10 8HG

    Received 15 Mar 2023
  12. Decided - Granted6/2018/1240/HOUSE

    Installation of 2 x front pitched roof dormers and 2 x skylights within the rear roof slope

    15 Heronfield Little Heath Potters Bar EN6 1JA

    Received 17 Apr 2018
  13. Decided - Granted6/2022/0278/LAWP

    Certificate of lawfulness for external cladding to be installed on three external walls

    46 High Dells Hatfield Hertfordshire AL10 9HU

    Received 8 Feb 2022
  14. Decided - Granted6/2020/0551/COND

    Submission of details pursuant to condition 1 (crown roof details) 6/2019/2313/FULL

    101 Brookmans Avenue, Brookmans Park, Hatfield, AL9 7QG

    Received 27 Feb 2020
  15. Decided - Refused6/2021/1586/EMH

    Ground floor rear extension and part garage conversion; Loft conversion with rear facing dormer

    19 Fearnley Road Welwyn Garden City AL8 6HW

    Received 18 May 2021
  16. Decided - Granted6/2019/0391/HOUSE

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

    59 Valley Road Welwyn Garden City AL8 7DH

    Received 20 Feb 2019
  17. Decided - Granted6/2021/2591/EMT

    Fell 2 x Ash trees

    7 Pondcroft Welwyn Garden City AL7 3XJ

    Received 6 Sept 2021
  18. Appeal Decided - Dismissed6/2019/1330/FULL

    Alterations and amendments to planning permission 6/2018/0171/MAJ, for the erection of a five-storey community bridge building (1,257m2) for flexible use (b1/d1/d2 use classes), incorporating a minimum of 338 square metres of D2 use class floor space, the removal of the skate park.

    Former Shredded Wheat Factory Welwyn Garden City AL8 6UN

    Received 4 Jun 2019
  19. Decided - Refused6/2024/1049/LAWP

    Certificate of lawfulness for the erection of a single storey side extension

    Gosmore Brocket Road Welwyn Garden City AL8 7TT

    Received 5 Jun 2024
  20. Decided - Granted6/2025/2109/LAWP

    Certificate of lawfulness for a loft conversion, including the installation of three rooflights to the rear roof slope & the removal of the central chimney stack; conversion of garage to habitable area, including the installation of a window to the front elevation & a rooflight to the shower room; & installation of ground floor WC window to front elevation

    96 Lemsford Lane Welwyn Garden City AL8 6YL

    Received 2 Oct 2025
  21. Decided - Granted6/2018/0617/HOUSE

    Erection of a single storey side extension and replacement of existing front dormers & installation of one additional dormer.

    29 Mandeville Rise Welwyn Garden City AL8 7JT

    Received 5 Mar 2018
  22. Decided - Granted6/2025/2493/COND

    Submission of details pursuant to Condition 2 (Construction Management Plan and 7 (Bat Box Details) on planning permission 6/2025/1212/HOUSE

    The Old Rectory 23-25 Mill Lane Welwyn AL6 9EU

    Received 28 Nov 2025
  23. Decided - Granted6/2024/0981/EM

    Erection of part single, part two storey rear extension and alterations to openings with replacement of all metal windows to upvc

    22 Melbourne Court Welwyn Garden City AL8 6LL

    Received 24 May 2024
  24. Decided - Granted6/2018/3248/LAWP

    Certificate of lawfulness for the erection of a single storey rear extension

    35A Plough Hill Cuffley EN6 4DW

    Received 20 Dec 2018

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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