PlanningTrack
Get started

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
40,251Searchable applications
321Recorded as pending
86%Approval rate · 33,747 approved or refused records
4,812Refused applications

28,935 approved · 4,812 refused · 2,213 withdrawn. Received dates in our records: 29 Apr 1948 to 29 Oct 2026. Most recent record check: 6 Nov 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 Counts reflect the last collected status; some records may be out of date.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 - Refused6/2025/2155/HOUSE

    Alterations to fenestration including replacement garage door, canopy to main entrance, raising the roof to the existing side extension and installation of rooflights, replacement of rainwater goods, refurbishment of flat roof areas and removal of the brick walls to front raised planter and replacement with a grass planter

    73 Attimore Road Welwyn Garden City AL8 6LG

    Received 10 Oct 2025
  2. Decided - Granted6/2019/2312/FULL

    Construction of car park for a two year temporary period and erection of 1.5 metre high fence

    Royal Veterinary College Hawkshead Lane North Mymms Hatfield AL9 7TA

    Received 18 Sept 2019
  3. Decided - Granted6/2020/2771/COND

    Submission of details pursuant to conditions 2B & C(remediation scheme and implementation), 7(external surfaces samples), 8(final landscape plan), 10(energy & sustainablity assessment) on planning permission 6/2019/0217/MAJ

    Northaw House Coopers Lane Northaw Potters Bar EN6 4NG

    Received 21 Oct 2020
  4. Decided - Granted6/2015/1561/LAWP

    Certificate of lawfulness for the erection of single storey rear extension

    9 Campion Road Hatfield AL10 9FA

    Received 23 Jul 2015
  5. Decided - Refused6/2020/2107/LAWP

    Certificate of lawfulness for the erection of a single storey side extension to include insertion of roof light, alterations to front fenestration and erection of front porch.

    21 Wellcroft Close Welwyn Garden City AL7 3JZ

    Received 21 Aug 2020
  6. Decided - Granted6/2015/1671/LAWP

    Certificate of lawfulness for the erection of a single storey rear extension

    34B Hertford Road Digswell Welwyn AL6 0DB

    Received 6 Aug 2015
  7. Decided - Granted6/2019/0105/LAWP

    Certificate of lawfulness for the erection of single storey rear extension and loft conversion, to include erection of rear dormer and insertion of 4 x front facing roof lights, work to also include erection of 2 m high garden wall and removal of existing chimney

    110 Wellcroft Road Welwyn Garden City AL7 3JU

    Received 21 Jan 2019
  8. Decided6/2025/1824/TC

    Paulownia to reduce by 1.2m in height and width, remove basal shoots.

    69 Woodhall Lane Welwyn Garden City AL7 3TG

    Received 27 Aug 2025
  9. Decided - Granted6/2022/1972/EM

    Installing solar panels on rear of house roof to generate electricity

    17 Rosedale Welwyn Garden City AL7 1DW

    Received 24 Aug 2022
  10. Decided6/2022/1779/TC

    Fell Magnolia (T1) currently over 4 metres tall causing excessive shade and low amenity value. Replace with dwarf Magnolia .

    3 Newfields Welwyn Garden City AL8 6YS

    Received 28 Jul 2022
  11. Under Consultation6/2026/1164/FULL

    Retention of driving range and conversion of Warren Farm Barn

    Brocket Park Brocket Hall Marford Road Lemsford Welwyn Garden City AL8 7XG

    Received 6 Jul 2026
  12. Decided - Granted6/2016/1955/HOUSE

    Erection of rear conservatory

    8 Layton Street, Welwyn Garden City, AL7 4FF

    Received 22 Sept 2016
  13. Decided - Granted6/2025/1369/PN24

    Prior approval for installation of a 49.68 kW solar PV system on the trapezoidal metal roof of the building

    Mallow Park Unit 3 Watchmead Welwyn Garden City AL7 1GX

    Received 1 Jul 2025
  14. Decided - Granted6/2024/0790/HOUSE

    Replacement windows and doors on front and rear elevations

    139 Peartree Lane Welwyn Garden City AL7 3AJ

    Received 26 Apr 2024
  15. Decided - Granted6/2016/0647/VAR

    Variation of condition 2 (drawings) on planning permission S6/2014/1996/FP - Erection of two storey side and rear extension following demolition of existing garage

    11 Somers Road, Welham Green, Hatfield, AL9 7PR

    Received 8 Apr 2016
  16. Decided - Granted6/2016/1976/HOUSE

    Erection of first floor rear extension

    9 Attimore Road, Welwyn Garden City, AL8 6LH

    Received 23 Sept 2016
  17. Decided - Granted6/2015/2012/TPO

    Lift 9 lime trees (G9) to clear road side to 5.2m and reduce one vertical leaning of one lime tree by 2m; reduce crown of ash tree (T2) by 4m; and reduce ash tree (T5) to clear building by 3m; all covered by TPO 171.

    4 Claregate Thornton Road Little Heath Potters Bar EN6 1BY

    Received 29 Sept 2015
  18. Decided - Refused6/2019/1258/COND

    Submission of details pursuant to condition 3 (details of sound insulation and attenuation measures to be undertaken to insulate from traffic noise) on approved planning number 6/2016/0818/MAJ

    Stonehills House Stonehills Welwyn Garden City AL8 6NH

    Received 24 May 2019
  19. Decided - Granted6/2018/1922/FULL

    Erection of a three storey extension to northern elevation and single storey extension to entrance lobby (C1), alterations to car parking layout, landscaping and associated works

    Premier Inn Stanborough Road Welwyn Garden City AL8 6DQ

    Received 20 Jul 2018
  20. Decided - RefusedW6/2014/1669/EM

    Retention of satellite dish

    41-71 Guessens Court, Welwyn Garden City, AL8 6RB

    Received 24 Jul 2014
  21. Decided - GrantedN6/2014/0759/S73A

    Variation of condition 2 (Approved Plans) of planning permission N6/2013/2080/FP (Erection of a pair of semi-detached dwellings)

    24 Prospect Place Welwyn AL6 9EN

    Received 3 Apr 2014
  22. Decided - Granted6/2019/1795/VAR

    Variation of condition 2 on planning permission N6/2002/1347/FP regarding external seating/drinking area hours of use.

    9 Howardsgate Welwyn Garden City AL8 6AT

    Received 22 Jul 2019
  23. Decided - Refused6/2019/1299/VAR

    Variation of Condition 52 (provision of open space and play space) on planning permission 6/2018/0171/MAJ to remove the skate park

    Former Shredded Wheat Factory Welwyn Garden City AL8 6UN

    Received 3 Jun 2019
  24. Decided - GrantedS6/2014/1869/FP

    Erection of part single, part two storey rear extension, first floor side extension and front porch

    40 Bradmore Way, Brookmans Park, Hatfield, AL9 7QX

    Received 20 Aug 2014

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

View all applications

Applications by postcode area

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.

    UK research
    Published Updated

  • 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.

    UK research
    Published Updated

  • 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.

    UK research
    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.

Check collection coverage

More planning authorities in England

Browse all authorities