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
40,297Searchable applications
322Recorded as pending
86%Approval rate · 33,788 approved or refused records
4,816Refused applications

28,972 approved · 4,816 refused · 2,217 withdrawn. Received dates in our records: 29 Apr 1948 to 29 Oct 2026. Most recent record check: 7 Nov 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 Counts reflect the last collected status; some records may be out of date.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 - GrantedN6/2015/1191/TP

    Reduce Oak tree by 20% by TPO184

    Sir Frederic Osborn School, Herns Lane, Welwyn Garden City, AL7 2AF

    Received 4 Jun 2015
  2. Decided6/2020/2673/TC

    Fell 1 x Crab Apple tree(T1), reduce 1 x Ash tree(T2) to hedge height, reduce 1 x Field Maple tree(T3) to 4m, fell 1 x Hawthorn tree(T4), reduce 4 x Hawthorn trees(T5-8) to 4m, remove dead wood in 1 x Oak tree(T9) covered by conservation area

    1 Church Cottages Bibbs Hall Lane Welwyn AL6 9BZ

    Received 14 Oct 2020
  3. Decided - Granted6/2025/0368/FULL

    Erection of a detached house followed by the demolition of an existing house

    6 Peace Grove Welwyn AL6 0RS

    Received 26 Feb 2025
  4. Decided - Refused6/2021/0875/HOUSE

    Erection of a two storey side extension and changes to fenestration on existing rear elevation

    6 Well Garth Welwyn Garden City AL7 3AF

    Received 18 Mar 2021
  5. Decided - Granted6/2020/0422/COND

    Submission of details pursuant to condition 11 (surface water drainage scheme) on planning permission 6/2018/2943/MAJ

    Royal Veterinary College Hawkshead Lane Hatfield AL9 7TA

    Received 14 Feb 2020
  6. Decided - Granted6/2024/2047/EM

    Home charging unit for motability car

    51 Blythway Welwyn Garden City AL7 1DL

    Received 23 Oct 2024
  7. Decided - Granted6/2023/0966/EM

    Removal of hedge on the right side of the garden when looking towards the garden from the back door.

    48 Furzefield Road, Welwyn Garden City, AL7 3RJ

    Received 5 May 2023
  8. Decided - Granted6/2017/2415/MAJ

    Addition of two floors to form 15 x 1 bed flats and 1 x 2 bed flat, alterations to elevations including fenestration details and associated cycle parking, bin storage facilities and disabled parking spaces following removal of existing roof.

    Accord House 28 Bridge Road East Welwyn Garden City AL7 1HX

    Received 19 Oct 2017
  9. Decided - Granted6/2022/1272/EMT

    2 x conifers fell to ground level replace with smaller trees and shrubs

    45 Sherrardspark Road Welwyn Garden City AL8 7LD

    Received 30 May 2022
  10. Decided - Granted6/2023/0714/LAWP

    Certificate of lawfulness for hip to gable roof extension with rear dormer and insertion of roof light, new window to side elevation with render finish to wall and alterations to chimney

    8 The Limberlost Welwyn Hertfordshire AL6 9TS

    Received 29 Mar 2023
  11. Decided6/2019/1386/TC

    Reduce 1 x Holm Oak tree by 40%

    St Marys Church Church Street Welwyn AL6 9LX

    Received 10 Jun 2019
  12. Decided - GrantedS6/2012/2549/FP

    Erection of a single storey rear extension following demolition of existing ground floor extension and enlarged terrace area

    Oshwal Association of the UK, Oshwal Centre, Coopers Lane Road, Northaw, POTTERS BAR, EN6 4DG

    Received 29 Nov 2012
  13. Decided - Granted6/2021/2349/LAWP

    Certificate of lawfulness for the erection of a single storey side extension to side of original dwelling only.

    22 Hawkshead Lane Hatfield AL9 7TB

    Received 9 Aug 2021
  14. Decided - Granted6/2018/0991/COND

    Submission of details pursuant to condition 5 (details of windows) on planning permission 6/2016/0818/MAJ

    Stonehills House Stonehills Welwyn AL8 6NH

    Received 16 Apr 2018
  15. Decided - Granted6/2025/0780/PN8

    Prior approval for the erection of a single storey rear extension measuring 8m in depth, 3m in height and 3m to the eaves

    12 Brocket Road Welwyn Garden City AL8 7TY

    Received 25 Apr 2025
  16. Decided - GrantedS6/2010/0276/DS

    DISCHARGE OF CONDITION 14 (PILING OR FOUNDATION DESIGNS) OF PLANNING PERMISSION S6/2009/1890/MA

    ROYAL VETERINARY COLLEGE, HAWKSHEAD HOUSE, HAWKSHEAD LANE, NORTH MYMMS, HATFIELD, HERTFORDSHIRE, AL9 7TA

    Received 10 Feb 2010
  17. Decided - GrantedN6/2007/0762/FP

    ERECTION OF GARAGE / CARPORT.

    Green Brow Waterend Lane Ayot St Peter Welwyn AL6 9BB

    Received 17 May 2007
  18. Decided - GrantedN6/2006/0219/FP

    ERECTION OF REAR CONSERVATORY FOLLOWING DEMOLITION OF EXISTING AND NEW REAR DORMER WINDOW TO PITCH ROOF

    26 Lemsford Village Welwyn Garden City AL8 7TN

    Received 20 Feb 2006
  19. Decided - GrantedW6/2014/2341/EM

    Retrospective permission for driveway widening and replacement of grass with a garden and surrounding path

    147 Boundary Lane, Welwyn Garden City, AL7 4EQ

    Received 24 Oct 2014
  20. Decided6/2019/0416/TPO

    Fell 8 x Fruit trees - covered by conservation area

    8 Vine Close Welwyn Garden City AL8 7PS

    Received 25 Feb 2019
  21. Decided - Granted6/2025/0041/FULL

    Erection of an external refrigerated storage unit, for the sole use of unit 5

    5 Market Place Hatfield AL10 0LJ

    Received 13 Jan 2025
  22. Decided - Granted6/2022/0541/HOUSE

    Erection of a single storey side and rear extension

    28 Thistle Drive Hatfield Hertfordshire AL10 9FQ

    Received 8 Mar 2022
  23. Decided - Granted6/2018/1258/EM

    Erection of a single storey side and rear extension

    6 Hillside Welwyn Garden City AL7 4PZ

    Received 14 May 2018
  24. Decided - Refused6/2020/0828/HOUSE

    Erection of a two storey rear extension

    Hill House Waterend Lane Ayot St Peter Welwyn AL6 9BB

    Received 1 Apr 2020

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