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
40,118Searchable applications
300Recorded as pending
86%Approval rate · 33,650 approved or refused records
4,801Refused applications

28,849 approved · 4,801 refused · 2,206 withdrawn. Received dates in our records: 29 Apr 1948 to 26 Oct 2026. Most recent record check: 31 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 Counts reflect the last collected status; some records may be out of date.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 - RefusedW6/2008/2295/EM

    FORMATION OF VEHICLE HARDSTANDING

    356 KNIGHTSFIELD, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7NG

    Received 26 Nov 2008
  2. Decided - GrantedN6/2009/2413/TE

    FELLING OF SYCAMORE TREE AND REDUCTION OF LAWSON CYPRESS TREE BY 10% AND REDUCTION OF CASTLEWELLAN TREE BY 25%

    30 ATTIMORE ROAD, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 6LP

    Received 3 Nov 2009
  3. Decided - Granted6/2024/0811/COND

    Submission of details pursuant of condition 4 (Landscaping Plan) on planning permission 6/2023/0622/FULL

    4 Brookmans Avenue Brookmans Park AL9 7QJ

    Received 30 Apr 2024
  4. Decided - GrantedS6/2009/1035/FP

    ERECTION OF SINGLE STOREY REAR EXTENSION AND ALTERATIONS TO ROOF TO INCLUDE HIP TO GABLE WITH HALF HIP, FRONT DORMER AND TWO ROOF LIGHT WINDOWS TO REAR

    17 WESTLAND DRIVE, BROOKMANS PARK, HATFIELD, HERTS, AL9 7UG

    Received 19 May 2009
  5. Appeal Decided - Allowed6/2024/1114/FULL

    Subdivision of existing dwelling into two dwellings with additional parking space

    17 Thrush Avenue Hatfield AL10 8QU

    Received 17 Jun 2024
  6. Decided6/2019/1849/TC

    Reduce 1 x Variegated Maple tree by 1m height & width Reduce 1 x Cedar tree by 1.5m Reduce1 x Willow tree by 2m Fell 1 x Juniper tree

    13 The Old Drive Welwyn Garden City AL8 6TB

    Received 29 Jul 2019
  7. Decided - Granted6/2019/0768/VAR

    Variation of Condition 4 (the area set aside for car parking shall be laid out in accordance with scheme on approved plan drawing number BEV 171 WD 005) Condition 8 (drawing Number BEV-171-WD-005 ) on planning application 6/2017/1393/FULL

    Barham Court 80A Station Road Cuffley Potters Bar EN6 4HY

    Received 1 Apr 2019
  8. Decided - Refused6/2022/0637/PN8

    Prior approval for an 8m rear extension from the kitchen and dining room to form a family room measuring 8 metres in depth and 3 metres to the eaves

    Coverack 50 The Ridgeway Cuffley Potters Bar EN6 4BA

    Received 17 Mar 2022
  9. Decided - GrantedS6/2008/1135/MA

    ERECTION OF TENNIS COURT CHANGING PAVILION

    PULHAM HOUSE (FORMERLY TENNIS COURT HOUSE), CUCUMBER LANE, ESSENDON, HATFIELD, HERTFORDSHIRE, AL9 6JD

    Received 8 Jul 2008
  10. Decided - Withdrawn6/2020/0795/FULL

    Erection of 3x cottage industry units following demolition of existing outbuildings

    25 Ayot Green Ayot St Peter AL6 9BA

    Received 27 Mar 2020
  11. Decided - Granted6/2015/1572/MAJ

    Erection of office building above existing car park with a link to existing business centre and stair core

    Orion House, Bessemer Road, Welwyn Garden City, AL7 1HH

    Received 27 Jul 2015
  12. Decided - Granted6/2015/2341/TPO

    Removal of Ash tree - Conservation Area.

    Garden behind D Block, Oaklands College, The Campus, Welwyn Garden City, AL8 6AH

    Received 3 Nov 2015
  13. Decided - Refused6/2017/1549/HOUSE

    Erection of single storey side extension, two storey rear extension. Installation of new window openings and replacement of upvc windows. Installation of new paving to existing driveways. Installation of roof tiles following removal of existing and removal of chimney.

    15 Mannicotts Welwyn Garden City AL8 7BW

    Received 17 Jul 2017
  14. Decided - Granted6/2019/0090/LB

    Replacement of the boiler house, heating system (pipework and emitters) and cold-water service pipework and Installation of a new hot water service pipework

    Templewood Primary School Pentley Park Welwyn Garden City AL8 7SD

    Received 18 Jan 2019
  15. Decided - GrantedN6/2014/1305/FP

    Erection of two storey and single storey rear extension

    37 Longlands Road, Welwyn Garden City, AL7 3QD

    Received 11 Jun 2014
  16. Decided - Granted6/2020/0885/HOUSE

    Erection of a single storey rear extension

    7 Hurst Close Welwyn Garden City AL7 2HX

    Received 16 Apr 2020
  17. Appeal Decided - AllowedN6/2009/0096/FP

    REPLACEMENT OF THREE PORTAKABINS WITH THE ERECTION OF REAR EXTENSION

    2 Great North Road Welwyn AL6 0PL

    Received 26 Jan 2009
  18. Decided - Granted6/2016/2643/TPO

    Fell Ash tree - Conservation Area

    3 Rayfield Welwyn Garden City AL8 7HR

    Received 13 Dec 2016
  19. Decided - Refused6/2020/3393/HOUSE

    Erection of brick pillars and two front gates

    9 Georges Wood Road Brookmans Park AL9 7BY

    Received 18 Dec 2020
  20. Decided - Granted6/2016/1926/TPO

    Fell 2x beech and crown reduce a third tree by 25% and removal of Cherry tree in front garden - Conservation Area

    17 Reddings, Welwyn Garden City, AL8 7LA

    Received 14 Sept 2016
  21. Decided - Granted6/2021/0690/HOUSE

    Two storey side extension

    2 Raymonds Plain Welwyn Garden City AL7 4TF

    Received 3 Mar 2021
  22. Decided - RefusedN6/2006/0113/FP

    ERECTION OF SINGLE STOREY REAR AND FRONT EXTENSIONS AND ERECTION OF FIRST FLOOR REAR EXTENSION

    3 Youngs Rise Welwyn Garden City AL8 6RT

    Received 27 Jan 2006
  23. Decided - Refused6/2020/3015/LAWP

    Certificate of Lawfulness for the erection of a single storey rear extension, a front porch extension and proposed window openings to dwellinghouse

    17 Ayot Green Ayot St Peter Welwyn AL6 9BA

    Received 16 Nov 2020
  24. Decided - Granted6/2021/3432/COND

    Submission of details pursuant of condition 1 (materials) on planning permission 6/2021/0746/HOUSE

    46 Blakemere Road Welwyn Garden City AL8 7PJ

    Received 8 Dec 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