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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
29,338Searchable applications
307Recorded as pending
87%Approval rate · 24,344 approved or refused records
3,246Refused applications

21,098 approved · 3,246 refused · 1,560 withdrawn. Received dates in our records: 1 Nov 1999 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 Counts reflect the last collected status; some records may be out of date.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 - GrantedS6/2014/2585/TP

    Reduce crown of Oak tree by 30%

    6 Leefe Way, Cuffley, Potters Bar, EN6 4DF

    Received 26 Nov 2014
  2. Decided - Refused6/2016/1610/PN8

    Prior approval for erection of single storey rear extension measuring 6m length, 2.75m high and 2.3m eaves height

    4 Stacklands, Welwyn Garden City, AL8 6XW

    Received 5 Aug 2016
  3. Decided - GrantedN6/2013/0762/FP

    New detached dwelling to be used as a shared care home (C2) for people with learning difficulties

    14 The Avenue Welwyn AL6 0PN

    Received 15 Apr 2013
  4. Decided6/2025/1594/TC

    To remove storm damaged branches from Swamp Cypress, thin upper crown by 15-20% to reduce weight on historic and new damaged points and to remove deadwood.

    16 The Green Welwyn AL6 9EA

    Received 24 Jul 2025
  5. Decided - Refused6/2021/0626/EM

    Retrospective application for the erection of a single storey side storage unit

    51 Oakdale Welwyn Garden City AL8 7QP

    Received 25 Feb 2021
  6. Decided - RefusedN6/2014/1209/FP

    Erection of railings to the front of detached dwelling

    The Carriage House 8 Codicote Road Welwyn AL6 9NB

    Received 23 May 2014
  7. Decided - Granted6/2023/1420/HOUSE

    Erection of single storey rear extension following the demolition of existing conservatory

    79 Stonecross Road Hatfield AL10 0HP

    Received 7 Jul 2023
  8. Decided - Granted6/2019/0992/HOUSE

    Erection of a single storey rear extension, replacement of a rooflight and insertion of two ground floor windows and two side rooflights

    9 Butterwick Way Welwyn AL6 9GH

    Received 24 Apr 2019
  9. Decided - Granted6/2016/1273/EM

    Erection of two storey side and rear extensions and new roof light to existing roof

    111 Handside Lane, Welwyn Garden City, AL8 6SP

    Received 24 Jun 2016
  10. Decided - Granted6/2020/0120/EM

    Erection of summerhouse retrospective

    28 Boundary Lane Welwyn Garden City AL7 4DY

    Received 17 Jan 2020
  11. Decided - Granted6/2018/1929/COND

    Submission of details pursuant to condition 6 (render samples) on planning permission 6/2016/1883/LB

    Former Roche Site 40 Broadwater Road Welwyn Garden City AL7 3AY

    Received 20 Jul 2018
  12. Decided - Withdrawn6/2016/2494/FULL

    Installation of 1 illuminated fascia sign to external cladding at high level to east elevation, rear of warehouse. Installation of 1 illuminated fascia sign to external cladding at high level to west elevation, rear of warehouse

    Former Argos Distribution Depot, 11 Bessemer Road Welwyn Garden City AL7 1HB

    Received 23 Nov 2016
  13. Decided - Granted6/2017/0975/TPO

    T1 - Reduce Red Oak to balance crown by 30% lift crown to 5 metres T2 - Crown reduce by 20% and T3-T14 12 x Leylandii to be felled and to remove stumps - Conservation Area

    30A High Oaks Road Welwyn Garden City AL8 7BH

    Received 8 May 2017
  14. Appeal Decided - Dismissed6/2019/2650/FULL

    Change of use from amenity to residential land with the formation of a hardstanding

    Land to the front of 28 and 30 Beechfield Road Welwyn Garden City AL7 3RF

    Received 22 Oct 2019
  15. Decided - Granted6/2026/0766/MAJ

    Erection of an additional storey to the roof of the building to accommodate additional office space.

    45-63 Brownfields Mill Brownfields Welwyn Garden City AL7 1AN

    Received 30 Apr 2026
  16. Decided - Withdrawn6/2025/2273/HOUSE

    Erection of a two storey side extension following demolition of single storey side extension

    3 Newstead Hatfield AL10 9DH

    Received 27 Oct 2025
  17. Decided - Granted6/2017/0155/LAWP

    Certificate of lawfulness for the erection of a front porch

    6 Two Oaks Drive Welwyn AL6 0EZ

    Received 27 Jan 2017
  18. Decided - Granted6/2022/0835/LAWP

    Certificate of lawfulness for loft extension

    7 Bluebridge Avenue Brookmans Park Hertfordshire AL9 7RY

    Received 6 Apr 2022
  19. Decided - Withdrawn6/2016/0184/EM

    Crown reduce and shape Cherry tree (T1) and Sycamore tree (T2) by upto 30%

    Land adj to 9 Creswick Court Welwyn Garden City AL7 3SX

    Received 29 Jan 2016
  20. Decided6/2022/0585/TC

    T1 Willow Tree - Reduce crown to former pruning points and removal by two to three-metre from the south facing side of the tree to rebalance and stabilise

    16 The Green Welwyn AL6 9EA

    Received 14 Mar 2022
  21. Decided - Refused6/2025/0648/COND

    Submission of details pursuant to condition number 14 (Scheme for noise) on planning permission 6/2022/2317/MAJ

    Videne Hawkshead Road Little Heath Potters Bar EN6 1LX

    Received 3 Apr 2025
  22. Decided - Granted6/2017/1503/HOUSE

    Erection of a two storey and part single storey side extension following demolition of existing detached garage and alterations to existing openings

    20 Oak Road Woolmer Green Knebworth SG3 6LS

    Received 10 Jul 2017
  23. Decided - GrantedN6/2015/1050/TC

    Removal of dead Leylandii hedge

    12 Roundwood Drive, Welwyn Garden City, AL8 7JZ

    Received 20 May 2015
  24. Decided - Granted6/2023/0559/PN8

    Prior approval for the erection of a single storey rear extension measuring 4.6m in depth, 2.7m in height and 2.5m to the eaves

    10 High Dells Hatfield AL10 9HU

    Received 13 Mar 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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