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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
18,346Searchable applications
298Recorded as pending
86%Approval rate · 14,785 approved or refused records
2,044Refused applications

12,741 approved · 2,044 refused · 928 withdrawn. Received dates in our records: 5 Jan 2005 to 30 Sept 2026. Most recent record check: 11 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2026/0028/TPO

    G1 Lime trees to clear basal vegetation and epicormic growth. Crown lift roadside to 5m. (TPO 854 (2018))

    Newlands Old Hertford Road Hatfield AL9 5EX

    Received 7 Jan 2026
  2. Decided - Granted6/2019/1320/EM

    Erection of rear garden outbuilding, formation of hardstanding and replacement of rear fence

    71 Digswell Park Road Welwyn Garden City AL8 7NW

    Received 29 May 2019
  3. Decided - Granted6/2020/1938/COND

    Submission of details pursuant to Condition 15 (electric car charging points) on Planning permission 6/2019/1067/MAJ

    Hill-Top Neighbourhood Centre High View Hatfield AL10 8HZ

    Received 5 Aug 2020
  4. Decided - Withdrawn6/2019/1399/EM

    Formation of hardstanding following replacement of damaged pavement

    1 Guessens Road Welwyn Garden City AL8 6QW

    Received 11 Jun 2019
  5. Call In/Major Objection6/2026/0241/VAR

    Demolition of existing buildings and construction of residential units (Use Class C3) and community hub (Use Class E/F.2), with public realm and open space, landscaping, access, associated car and cycle parking, refuse and recycling storage and supporting infrastructure (as amended)

    BioPark Broadwater Road Welwyn Garden City AL7 3AX

    Received 11 Feb 2026
  6. Decided6/2023/0215/TC

    Crown reduction of Beech tree by 25%

    4 Handside Green Welwyn Garden City AL8 6SQ

    Received 30 Jan 2023
  7. Decided - Granted6/2019/1216/HOUSE

    Retention for alterations to existing garage

    5 New Road Woolmer Green Knebworth SG3 6JX

    Received 20 May 2019
  8. Decided - Granted6/2026/0318/FULL

    Installation of a Solar PV system on the flat roof section of the building

    Christchurch Baptist 110 Parkway Welwyn Garden City AL8 6HN

    Received 20 Feb 2026
  9. Decided - Granted6/2020/1156/EMT

    Reduce x1 Ash trees by 2m Reduce x1 Ash trees by 2m and crown lift to 4m Reduce 3x Conifer trees by 1m

    50 Guessens Court Welwyn Garden City AL8 6RB

    Received 21 May 2020
  10. Decided - Refused6/2024/1007/COND

    Submission of details pursuant of condition 1 (landscape) 2 (refuse and recycle) 3 (cycle parking) 4 (side window) 5 (material) and 6 (work) on planning permission 6/2022/2883/FULL

    109 Woods Avenue Hatfield AL10 8QQ

    Received 30 May 2024
  11. Decided - Granted6/2022/1306/EM

    Single Storey Rear Extension, Loft Conversion, and New Windows and Doors

    94 Lemsford Lane, Welwyn Garden City, AL8 6YL

    Received 6 Jun 2022
  12. Decided - Granted6/2026/0626/EMT

    Remove Robinia tree and stump

    12 The Valley Green Welwyn Garden City AL8 7DQ

    Received 9 Apr 2026
  13. Decided - Granted6/2024/1429/EMT

    Removal of 2 x small Apple trees c. 3-5 metres in height, in the garden, to make safe the area from falling apples and branches

    1 Brockswood Lane Welwyn Garden City AL8 7BA

    Received 29 Jul 2024
  14. Decided - Granted6/2025/2377/TPO

    T1 Ash - crown reduction by 1-2m from branch tips

    6 Hall Grove Welwyn Garden City AL7 4PN

    Received 11 Nov 2025
  15. Decided - Refused6/2019/0870/EM

    Erection of an annexe to the side/rear of property.

    32 Colgrove Welwyn Garden City AL8 6HU

    Received 10 Apr 2019
  16. Decided - Withdrawn6/2021/0199/FULL

    Replacement of enclosure to rear walkways at the first and second floor

    1-24 Woodhall House Cole Green Lane Welwyn Garden City AL7 3PX

    Received 22 Jan 2021
  17. Decided - Granted6/2024/2318/HOUSE

    Erection of a single storey extension to the front of the existing garage

    53 Bishops Rise Hatfield AL10 9BU

    Received 2 Dec 2024
  18. Decided6/2018/2535/COND

    Confirmation that conditions attached to application N6/1994/0819/FP have been complied with

    1-55 (inclusive) Lynmouth Road, Welwyn Garden City, AL7 3PB

    Received 2 Oct 2018
  19. Decided - Withdrawn6/2018/2768/OUTLINE

    Outline application for a large-scale mixed use development including 1,100 new homes and supporting infrastructure including a primary school, local centre and open space with all matters reserved

    Hatfield Business Park Frobisher Way Hatfield AL10 9SL

    Received 26 Oct 2018
  20. Decided - Granted6/2019/0576/HOUSE

    Erection of single storey front extension following demolition of front porch

    240 Howlands Welwyn Garden City AL7 4HF

    Received 12 Mar 2019
  21. Decided - Granted6/2020/2290/COND

    Submission of details pursuant to condition 1 (samples) of listed building consent 6/2018/3141/LB

    Little Guessens 6 Codicote Road Welwyn AL6 9NB

    Received 8 Sept 2020
  22. Decided - Granted6/2024/0734/TPO

    1 x Beech to reduce by approximately 4m in height. The upper canopy is to be reduced by approximately 2m and the lower canopy by up to 4m. Tree has a large included union at the tree Biforcates. There is also lower bark cracking on each side below the inclusions. The aim is to reduce stress on the union while reducing size of the tree also minimising debris & bird droppings falling on cars TPO 24 A3

    4 Mardley Dell Welwyn AL6 0UR

    Received 19 Apr 2024
  23. Decided - Granted6/2019/3066/FULL

    Retention of change of use from offices (B1a) to a church and community centre (D1)

    20 Tewin Road Welwyn Garden City AL7 1LG

    Received 3 Dec 2019
  24. Decided - Granted6/2026/0236/EMT

    Fell poplar tree.

    10 Picketts Welwyn Garden City AL8 7HJ

    Received 10 Feb 2026

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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