England · Local authority

Welwyn Hatfield planning applications

PlanningTrack collects planning applications and decisions from the public planning register of Welwyn Hatfield Borough Council. Search an address, application reference or proposal. Official Welwyn Hatfield website

Collected application statistics

Collected records · All available dates
35,748Searchable applications
331Recorded as pending
86%Approval rate · 29,783 approved or refused records
4,037Refused applications

25,746 approved · 4,037 refused · 1,873 withdrawn. Received dates in our records: 29 Apr 1948 to 16 Oct 2026. Most recent record check: 23 Oct 2026. Counts reflect the last collected status; some records may be out of date.

Local planning information

Council sources checked 14 Sept 2026

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 - Granted6/2017/2105/RM

    Approval of reserved matters (access, appearance, landscaping, layout and scale) for the erection of three buildings comprising motor retail showrooms, vehicle servicing/workshop facilities, MOT facilities, office use and valeting, together with associated parking and landscaping of the approved outline planning permission 6/2015/2043/OUTLINE, dated 05/07/2016.

    Plot 4100 Gypsy Moth Avenue Hatfield Business Park Hatfield

    Received 19 Sept 2017
  2. Decided - Refused6/2016/0957/TPO

    Removal of Pine tree located in rear garden - Conservation Area

    10 Russellcroft Road, Welwyn Garden City, AL8 6QT

    Received 16 May 2016
  3. Decided - Granted6/2019/3204/LAWP

    Certificate of lawfulness installation of rear dormer and 3 no. front velux(s)

    78 Old Rectory Drive Hatfield AL10 8FE

    Received 20 Dec 2019
  4. Decided - Granted6/2017/2602/TPO

    Reduce Sweet Chestnut tree by 5 % - covered by TPO 599 (2016)

    13 Marlborough Close Welwyn AL6 0UG

    Received 8 Nov 2017
  5. Decided - Refused6/2017/2329/FULL

    Erection of 3 x 2-bedroom dwellings with associated parking - retrospective

    Land Adjacent to 37 Lambs Close Cuffley EN6 4HD

    Received 11 Oct 2017
  6. Decided - Granted6/2020/1212/FULL

    Extensions and alterations to the building to allow it to be converted into a single dwelling house with associated landscaping, hard surfacing and alterations to a section of the existing wall adjacent to the building to create a new gated opening for pedestrian access

    The Wood Barn The Estate Yard North Mymms Park North Mymms Hatfield AL9 7TR

    Received 1 Jun 2020
  7. Decided6/2023/1447/TC

    1 x Portugal Laurel to reduce by 1.5m height and 1m width due to branches growing over neighbouring boundary 1 x Sycamore to dismantle in sections to ground level. Lower basal decay, tree also encompassed by Laurel with poor form

    56 Valley Road Welwyn Garden City AL8 7DN

    Received 11 Jul 2023
  8. Decided - Granted6/2017/2792/HOUSE

    Garage conversion to habitable space including installation of front window and front porch

    49 The Meadway Cuffley Potters Bar EN6 4ET

    Received 29 Nov 2017
  9. Decided - Granted6/2025/1111/COND

    Submission of details pursuant of condition 2 (site survey), 17 (refuse and recycling), 21 (bird boxes) on planning permission 6/2020/2268/MAJ approved by appeal APP/C1950/W/21/3284525

    73 Bridge Road East Welwyn Garden City AL7 1UT

    Received 10 Jun 2025
  10. Decided6/2020/1661/TC

    Reduce 1 x Plane tree by 50%

    32 Blakemere Road Welwyn Garden City AL8 7PJ

    Received 10 Jul 2020
  11. Decided - GrantedN6/2014/1148/DS

    Confirmaiton of compliance of condition 2 (Hard and Soft Landscaping) attached to planning permission N6/2013/2658/S73a

    216A Knella Road, Welwyn Garden City, AL7 3NW

    Received 21 May 2014
  12. Decided - Granted6/2022/0661/EMT

    To fell a tree in our rear garden which is dead at the bottom It is 7 m in height and the canopy is ~ 4 m maximum in spread. It is in our back garden. It is 4m from the house and 3m from the nearest fence I attach a plan and picture

    29A Turmore Dale Welwyn Garden City AL8 6HT

    Received 21 Mar 2022
  13. Decided - GrantedN6/2015/1196/DS

    Approval of details reserved by condition 3 (Colour details) for planning permission N6/2015/0200/FP - Installation of Automatic Car Park Barrier

    WGC United Reformed Church, Church Road Car Park, Church Road, Welwyn Garden City, AL8 6PS

    Received 4 Jun 2015
  14. Decided - Granted6/2026/0011/COND

    Submission of details pursuant to condition number 1 (Noise details) on planning permission 6/2025/1582/FULL

    71-81 Moors Walk Welwyn Garden City AL7 2BQ

    Received 5 Jan 2026
  15. Decided - GrantedN6/2015/0372/LB

    Installation of single additional rainwater downpipe and drainage

    Shaws Corner Bride Hall Lane Ayot St Lawrence Welwyn AL6 9BX

    Received 25 Feb 2015
  16. Decided - Granted6/2022/2288/HOUSE

    Conversion of garage into a habitable space and erection of a single storey rear extension following the demolition of existing conservatory

    118 Campion Road Hatfield AL10 9FT

    Received 3 Oct 2022
  17. Decided - Refused6/2026/0689/LAWP

    Certificate of lawfulness for the remodelling of existing conservatory including raising the existing conservatory walls

    41 Hawbush Rise Welwyn AL6 9PR

    Received 17 Apr 2026
  18. Decided - GrantedN6/2015/0958/FP

    Demolition of the existing building and erection of a five bedroom dwelling with associated access and parking

    Oak Cottage Ayot St Peter Road Ayot St Peter Welwyn AL6 9BG

    Received 5 May 2015
  19. Decided - Refused6/2017/1133/HOUSE

    Erection of single storey front extension and two storey rear extension

    11 Elm Drive Hatfield AL10 8NR

    Received 24 May 2017
  20. Decided - Granted6/2024/0752/HOUSE

    Retention of single storey infill extension, single storey side extension, enclosed courtyard and fenestration alterations

    27 Oaklea Welwyn AL6 0PT

    Received 23 Apr 2024
  21. Decided - Granted6/2025/1056/HOUSE

    Installation of a rear dormer to facilitate loft conversion, single storey rear extension and front car port.

    3 Roundwood Drive Welwyn Garden City AL8 7JZ

    Received 4 Jun 2025
  22. Decided - Granted6/2016/0366/EM

    Reduce Conifer tree by upto 30% in width

    25 Wren Wood, Welwyn Garden City, AL7 1QF

    Received 25 Feb 2016
  23. Decided - Granted6/2020/2748/HOUSE

    Erection of a single storey rear infill extension

    58 Great Ley Welwyn Garden City AL7 4TL

    Received 22 Oct 2020
  24. Decided - Granted6/2021/3041/COND

    Submission of details pursuant to condition 5 (hard and soft landscaping details) on planning permission 6/2018/3292/MAJ

    Land adjacent to 45 Broadwater Road, Welwyn Garden City, AL7 3AX

    Received 22 Oct 2021

Records are ordered by application ID, not submission date. Use search to find a particular address or proposal.

View all applications

Get emailed about new planning applications in Welwyn Hatfield

Area alerts send a daily or weekly email with new applications and decisions near a postcode, filtered by project type. £29 a month, up to 3 areas. Records are limited to the councils we collect.

Set up an area alert

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.

  • 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.

  • 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.

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.

Check collection coverage