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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
31,603Searchable applications
303Recorded as pending
87%Approval rate · 26,385 approved or refused records
3,462Refused applications

22,923 approved · 3,462 refused · 1,670 withdrawn. Received dates in our records: 29 Apr 1948 to 13 Oct 2026. Most recent record check: 19 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 Counts reflect the last collected status; some records may be out of date.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 - GrantedN6/2013/1856/FP

    Part demolition of existing side extension and erection of single storey side extension, erection of two storey rear extension with roof alterations incorporating loft conversion

    11 Roundwood Drive, Welwyn Garden City, AL8 7JZ

    Received 28 Aug 2013
  2. Under Consultation6/2026/1564/EMT

    Removal of cypress hedge and hawthorn tree

    33 Digswell Road Welwyn Garden City AL8 7PB

    Received 9 Sept 2026
  3. Decided - GrantedC6/1988/0676/FP

    Single storey rear extension

    24 The Commons, Welwyn Garden City, AL7 4RP

    Received 1 Jan 1988
  4. Decided - Granted6/2021/3069/LAWP

    Certificate of lawfulness for the demolition of historical rear two storey extension, and erection of a two storey rear extension projecting off the original rear wall with rooflights installed to the side and rear roof pitches.

    Colesdale Farmhouse Northaw Road West Northaw Potters Bar EN6 4QZ

    Received 26 Oct 2021
  5. Decided - Granted6/2016/0590/HOUSE

    Installation of wrought iron gates to the main entrance from Wildhill Road.

    St Michaels, Woodside, Wildhill Road, Brookmans Park, Hatfield, AL9 6DL

    Received 5 Apr 2016
  6. Decided - Granted6/2020/1224/EMT

    Fell 1 x Ash tree [T1]

    221 Heronswood Road Welwyn Garden City AL7 3JH

    Received 2 Jun 2020
  7. Decided - Refused6/2020/2486/COND

    Submission of details pursuant to conditions 1 (materials), 2 (roof) and 3 (side window) on planning permission 6/2019/1367/HOUSE

    62 Brookmans Avenue Hatfield AL9 7QQ

    Received 29 Sept 2020
  8. Decided - Granted6/2025/2590/HOUSE

    Conversion of existing garage and passageway into habitable space and raising of roof with replacement of garage doors

    7 Youngs Rise Welwyn Garden City AL8 6RT

    Received 17 Dec 2025
  9. Decided - Granted6/2026/0469/COND

    Submission of details pursuant to condition number 16 (Scheme for the provision of fire hydrants) on planning permission 6/2024/1512/MAJ (NMA1)

    Elizabeth House Elizabeth Close Welwyn Garden City AL7 2JB

    Received 13 Mar 2026
  10. Decided - Granted6/2019/1626/HOUSE

    Erection of single storey front, side, rear extensions following raising of roof and alterations to openings

    7 Willow Grove Welwyn Garden City AL8 7NA

    Received 3 Jul 2019
  11. Decided6/2023/1522/TC

    30% reduction of Elm tree back to previous reduction point

    8 The Orchard Welwyn Garden City AL8 7PL

    Received 20 Jul 2023
  12. Decided - Split6/2017/2399/COND

    Confirmation that conditions have been complied with S6/2003/0957/DE - 23/10/2003

    129-133 Cunningham Avenue Hatfield AL10 9JZ

    Received 18 Oct 2017
  13. Decided6/2024/1375/TC

    Removal of fir tree. Removal of cherry tree as sits just before the boundary line and based on the proposed fencing alignment, it will be directly in the building works way. Removal of two small trees. Field elm - Boundary line obstruction for fence. Lilac tree - Removal for new lawn. To keep as much of the councils bushes that sit on the boundary line as possible. However, these bushes are 95% Ivy (See photos). The Ivy is attacking the bushes and trees within this area. Ideally, this area needs a replanting

    73 Knightsfield Welwyn Garden City AL8 7JE

    Received 18 Jul 2024
  14. Decided - Granted6/2018/1213/EM

    Reduce 1 x Lawson Cypress tree by up to 30% to the level of Yew hedge

    31 Brockswood Lane Welwyn Garden City AL8 7BE

    Received 9 May 2018
  15. Appeal Decided - Allowed6/2017/0584/HOUSE

    Erection of single storey front porch, following demolition of existing single storey front lobby

    4 Becket Gardens Welwyn AL6 9JE

    Received 21 Mar 2017
  16. Decided - GrantedN6/2015/0882/S73B

    Variation of condition 2 (plans) on planning permission N6/2014/2603/FP

    43 Warren Way Digswell Welwyn AL6 0DQ

    Received 28 Apr 2015
  17. Decided - Granted6/2024/2309/HOUSE

    Erection of part single, part two storey rear extension with Juliet balconies, two storey side extension, raising ridge height and formation of front porch

    39 King James Avenue Cuffley Potters Bar EN6 4LN

    Received 2 Dec 2024
  18. Decided - Refused6/2016/1487/PN11

    Prior approval for the change of use from office to residential to provide 1no unit

    29 Mill Lane Welwyn AL6 9EU

    Received 19 Jul 2016
  19. Decided - Granted6/2016/0573/COND

    Approval of details reserved by condition 3 (materials) on planning permission S6/2012/2654/FP

    22 Brookmans Avenue, Brookmans Park, Hatfield, AL9 7QJ

    Received 31 Mar 2016
  20. Decided - Granted6/2018/0544/LAWE

    Certificate of lawfulness for an existing HMO

    100 Roe Green Lane Hatfield AL10 0SJ

    Received 23 Feb 2018
  21. Decided - Refused6/2022/1345/LAWP

    Certificate of lawfulness for proposed loft conversion with side facing dormers and rooflights

    9 Sterling Court Mundells Welwyn Garden City Hertfordshire AL7 1FZ

    Received 10 Jun 2022
  22. Decided - GrantedC6/1988/0341/CA

    Demolition of existing outhouse

    4 Guessens Walk, Welwyn Garden City, AL8 6QS

    Received 1 Jan 1988
  23. Decided - Granted6/2017/2956/EM

    Erection of single storey rear extension

    229 Daniells Welwyn Garden City AL7 1QD

    Received 21 Dec 2017
  24. Decided - Granted6/2023/0332/COND

    Submission of details pursuant of condition 1 (crown roof) on planning permission 6/2022/1969/HOUSE

    99 The Ridgeway Cuffley Potters Bar EN6 4BG

    Received 10 Feb 2023

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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