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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
29,472Searchable applications
307Recorded as pending
87%Approval rate · 24,465 approved or refused records
3,259Refused applications

21,206 approved · 3,259 refused · 1,568 withdrawn. Received dates in our records: 15 Jun 1948 to 13 Oct 2026. Most recent record check: 18 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2023/0718/LAWP

    Certificate of lawfulness for garage conversion

    3 Elmoor Close Welwyn AL6 9PF

    Received 30 Mar 2023
  2. Decided - Granted6/2018/2841/EM

    Erection of two-storey side and single storey rear extensions

    6 Honeycroft Welwyn Garden City AL8 6HR

    Received 5 Nov 2018
  3. Decided - Granted6/2015/1626/HOUSE

    Erection of single storey front and side extensions and exterior alterations

    7 Orchard Close, Cuffley, Potters Bar, EN6 4QD

    Received 31 Jul 2015
  4. Decided - GrantedW6/2014/0987/EM

    Erection of single storey rear and side extension

    43 Longcroft Lane, Welwyn Garden City, AL8 6EB

    Received 28 Apr 2014
  5. Decided - Refused6/2022/2044/LAWP

    Certificate of lawfulness for proposed rear extension following the demolition of existing conservatory

    2 Nash Close Welham Green Hatfield AL9 7NN

    Received 2 Sept 2022
  6. Decided - Granted6/2019/2908/EM

    Fell 1 x T10 Acer Fell 1 x T13 Hornbeam

    24 Pentley Park Welwyn Garden City AL8 7SB

    Received 19 Nov 2019
  7. Decided - Granted6/2017/2488/PN8

    Prior approval for the erection of single storey rear extension measuring 6m in depth, 4m in height and 2.8m to the eaves

    138 Travellers Lane Hatfield AL10 8SS

    Received 26 Oct 2017
  8. Decided - GrantedN6/2015/1201/DS

    Approval of details reserved by condition 3 (buffer zone) and 4 (landscape plan) on planning permission N6/2013/1977/FP

    Danesbury Hill House Codicote Road Welwyn AL6 9NF

    Received 8 Jun 2015
  9. Decided - Granted6/2021/1074/EMT

    Reduce 25ft goat willow tree by 30%

    75 Knightsfield Welwyn Garden City AL8 7JE

    Received 31 Mar 2021
  10. Decided - Granted6/2023/2349/HOUSE

    Erection of a two-storey rear extension with the creation of a crown roof, erection of a two storey front gable extension, loft conversion incorporating three rooflights to the front and one to either side and the insertion of two dormers to the rear, enclosure of the single storey front canopy, erection of a pitched roof entrance porch with extended canopy, garage conversion, fenestration alterations, change to materials, erection larger patio area and erection of new steps to the rear, security gate/ fence to the side access, enlargement of existing driveway and the removal of both chimneys

    38 The Grove Brookmans Park AL9 7RN

    Received 22 Nov 2023
  11. Appeal Decided - Dismissed6/2022/0893/HOUSE

    Erection of a single storey, part two storey rear extension

    1 Stonecross Road Hatfield AL10 0HR

    Received 13 Apr 2022
  12. Decided - GrantedN6/2014/0145/TC

    Removal of Poplar tree

    34 Barleycroft Road, Welwyn Garden City, AL8 6JU

    Received 17 Jan 2014
  13. Decided - Granted6/2022/0450/EM

    Erection of a Glass Room attached to the rear of the property.

    14 Roundwood Drive Welwyn Garden City AL8 7JZ

    Received 24 Feb 2022
  14. Decided - Granted6/2018/3233/OUTLINE

    Outline planning application for the development of up to 13 residential units with all matters reserved other than means of access (Illustrative Scheme Layout Provided)

    First House Hyde Valley House Hyde Valley Welwyn Garden City AL7 4NE

    Received 19 Dec 2018
  15. Decided - Withdrawn6/2022/0048/EMT

    Prune Silver birch T1. Thin crown to remove approximately 20% of live branches. Most thinning cuts will be between 2 and 3 centimetres in diameter.

    6 Handside Green, Welwyn Garden City, AL8 6SQ

    Received 10 Jan 2022
  16. Decided - Granted6/2023/1835/HOUSE

    Erection of single storey rear and side extension with associated roof light following demolition of existing single storey rear extension

    15A Peplins Way Brookmans Park AL9 7UR

    Received 4 Sept 2023
  17. Decided - Granted6/2016/0505/EM

    Removal of Cypress tree

    19 Beehive Lane, Welwyn Garden City, AL7 4BB

    Received 15 Mar 2016
  18. Decided - Granted6/2018/1231/EM

    Erection of a single storey side extension

    291 Knightsfield Welwyn Garden City AL8 7NH

    Received 9 May 2018
  19. Decided - GrantedS6/2013/1762/FP

    Erection of proposed 'Click and Collect' customer collection pod and canopy and alterations to associated access road

    Tesco Stores Ltd, Oldings Corner, Hatfield, AL9 5JY

    Received 15 Aug 2013
  20. Decided - Granted6/2019/1089/HOUSE

    Erection of a ground floor rear/side and first floor extension, including the construction of a rear dormer and installation of rooflights to facilitate the creation of habitable space within the loft

    50 Plough Hill Cuffley Potters Bar EN6 4DS

    Received 7 May 2019
  21. Decided - Granted6/2016/1943/EM

    Extension to current hardstanding to provide extra car parking space.

    42 Springfields, Welwyn Garden City, AL8 6XN

    Received 20 Sept 2016
  22. Decided - Granted6/2021/0111/HOUSE

    Erection of a single storey rear extension

    12 Gresley Close Welwyn Garden City AL8 7QB

    Received 14 Jan 2021
  23. Decided - GrantedS6/2014/2414/FP

    Erection of conservatory

    Monkswell, The Ridgeway, Cuffley, Potters Bar, EN6 4BH

    Received 31 Oct 2014
  24. Decided - Granted6/2021/1928/EMT

    1 x Yew - fell 1 x Wild Plum - reduce width over garden, patio and cabin by 2m and reduce limb over neighbours garden by 1.2m

    16 Fordwich Road Welwyn Garden City AL8 6EY

    Received 24 Jun 2021

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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    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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