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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
24,752Searchable applications
313Recorded as pending
86%Approval rate · 20,299 approved or refused records
2,802Refused applications

17,497 approved · 2,802 refused · 1,307 withdrawn. Received dates in our records: 5 Jan 2005 to 2 Oct 2026. Most recent record check: 15 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2023/0638/LAWP

    Certificate of lawfulness for the construction of front porch

    85 Garden Avenue Hatfield Hertfordshire AL10 8LH

    Received 22 Mar 2023
  2. Decided - Granted6/2017/1830/EM

    Erection of single storey infill extension to side porch

    32 High Oaks Road Welwyn Garden City AL8 7BH

    Received 16 Aug 2017
  3. Decided - Granted6/2024/0987/HOUSE

    Internal alterations to the Grade II listed building including general refurbishment and the conversion of existing outbuilding into habitable space

    1 Digswell Park Cottages Digswell Park Road Welwyn Garden City AL8 7NN

    Received 28 May 2024
  4. Decided - Granted6/2017/2575/EM

    Installation of Bi-Fold patio doors to replace current ground floor window rear of property

    13 Marley Road Welwyn Garden City AL7 4BT

    Received 7 Nov 2017
  5. Decided6/2025/2053/TC

    1 x Apple to reduce by approximately 2m height & width. 1 x Holly to reduce by 2.5m.

    4 High Grove Welwyn Garden City AL8 7DW

    Received 25 Sept 2025
  6. Decided - Granted6/2017/2171/TPO

    Removal of 5 cherry trees 1-5 covered by TPO 371 (2006)

    Land adj to Unit 1 The Polaris Centre 41 Brownfields Welwyn Garden City AL7 1AN

    Received 26 Sept 2017
  7. Decided - Withdrawn6/2017/1402/HOUSE

    Erection of two storey rear extension, lower ground floor 'garden room' with associated steps and the installation of 4 front and 2 rear dormer windows to facilitate loft conversion to habitable space

    24 Heathbrow Road Welwyn AL6 0QG

    Received 20 Jun 2017
  8. Decided - Granted6/2018/2766/VAR

    Variation of condition 9 (approved drainage strategy) and 14 (approved plans) on planning application 6/2018/0598/MAJ

    Ponsbourne Riding School and Ponsbourne Grange Newgate Street Hertford SG13 8QS

    Received 26 Oct 2018
  9. Decided - Granted6/2023/0505/EM

    Erection of single storey rear extension

    15 Dawley Welwyn Garden City AL7 1EA

    Received 6 Mar 2023
  10. Decided - Granted6/2021/2019/LAWE

    Certificate of lawfulness for the existing outbuilding structure

    6 The Ridgeway Cuffley Potters Bar EN6 4AR

    Received 2 Jul 2021
  11. Decided - Granted6/2026/0242/TPO

    Horse chestnut to reduce crown by 3m. Lime to reduce crown by 3m. (TPO 913 (2023))

    Hatfield Community Free School Briars Lane Hatfield AL10 8ES

    Received 11 Feb 2026
  12. Decided - Granted6/2026/0920/COND

    Submission of details pursuant to Condition 1 (Arboricultural Method Statement and Tree Protection Strategy) on planning permission 6/2025/2612/HOUSE

    14 Elmwood Welwyn Garden City AL8 6LE

    Received 22 May 2026
  13. Under Consideration6/2026/1566/TC

    (T1) Hazel – Reduce the height and lateral spread by approx 1.5–2m, pruning back to the previous pruning points where appropriate (T2) Yew – Reduce the height and lateral spread by approx 0.5m, growth encroaching over the pathway

    16 Northaw Road West Northaw EN6 4NR

    Received 9 Sept 2026
  14. Appeal Decided - Dismissed6/2022/2056/HOUSE

    Replacement of existing garage to include a pitched roof

    1 High Oaks Road Welwyn Garden City AL8 7BJ

    Received 5 Sept 2022
  15. Decided - Granted6/2016/1683/EM

    Erection of shed

    16 Daniells, Welwyn Garden City, AL7 1PZ

    Received 15 Aug 2016
  16. Appeal Decided - Dismissed6/2018/2851/EM

    Proposed replacement rear conservatory

    74 Rosedale Welwyn Garden City AL7 1DR

    Received 6 Nov 2018
  17. Decided - Granted6/2022/1492/HOUSE

    Erection of a part single, part two storey rear extension and two storey side extension with front porch and fenestration alterations

    8 Peplins Way Brookmans Park AL9 7UU

    Received 27 Jun 2022
  18. Decided - Granted6/2016/1645/FULL

    Change of use from Mixed Use (Sui Generis) to Restaurant (A3) on first floor

    Taj Mahal 2 High Street Welwyn AL6 9EQ

    Received 11 Aug 2016
  19. Decided - Granted6/2017/1075/TPO

    Fell two Conifer trees located in rear garden - Conservation Area

    40 Brockswood Lane Welwyn Garden City AL8 7BG

    Received 18 May 2017
  20. Decided - Granted6/2022/0889/TPO

    T1, T2, T3, T4, T6 and T7, Sweet Chestnut - crown reduce by 30%; remove epicormic growth from stem up to 6m from ground level and remove deadwood due to excessive shading. T5, Sweet Chestnut – remove to ground level as it is dead.

    Chestnut House 19A Woodland Way Welwyn AL6 0RX

    Received 13 Apr 2022
  21. Decided - Split6/2019/1203/COND

    Submission of details pursuant to condition 1 (Construction Plan), 3 (Materials), 4 (Noise), 5 (Elevations), 6 (Bins) on planning application 6/2018/2611/FULL

    265 Knella Road Welwyn Garden City AL7 3NS

    Received 17 May 2019
  22. Decided - Granted6/2016/1065/HOUSE

    Erection of two storey rear extension and conversion of existing linked garage into living room

    36 Bull Stag Green Hatfield AL9 5DE

    Received 31 May 2016
  23. Decided6/2020/2053/TC

    Fell 1 x Conifer (T1) to ground level

    49 Brockswood Lane Welwyn Garden City AL8 7BU

    Received 13 Aug 2020
  24. Decided - Split6/2022/1942/COND

    Submission of details pursuant to condition 18 (Travel plan) on planning permission 6/2018/0171/MAJ

    Former Shredded Wheat Factory 3 Bridge Road Welwyn Garden City AL8 6UN

    Received 19 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

  • Understanding planning · 13 min read

    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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