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
39,499Searchable applications
344Recorded as pending
86%Approval rate · 33,050 approved or refused records
4,725Refused applications

28,325 approved · 4,725 refused · 2,165 withdrawn. Received dates in our records: 29 Apr 1948 to 21 Oct 2026. Most recent record check: 27 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2026/0046/HOUSE

    Erection of a two storey side extension. Alterations to the elevations and external finishes. Installation of front and rear facing rooflights. Construction of a detached double garage with associated driveway alterations and landscaping works following the demolition of the existing garage.

    77 Pine Grove Brookmans Park AL9 7BL

    Received 13 Jan 2026
  2. Decided - Granted6/2017/0528/HOUSE

    Erection of double storey side and rear, and single storey front and side extensions and conversion of integral garage to habitable room

    38 Brookside Crescent Cuffley Potters Bar EN6 4QN

    Received 16 Mar 2017
  3. Decided - Granted6/2022/1289/EM

    Proposed change to existing ground floor front window unit to include the erection of an external brick wall.

    235 Daniells Welwyn Garden City AL7 1QD

    Received 31 May 2022
  4. Decided - Granted6/2022/1299/EM

    Installation of 12 solar PV panels (data sheet of the product chosen) on the roof facing the back garden Provisional date for the installation 21st Sep 2022

    10 Whitethorn Welwyn Garden City AL7 3EX

    Received 6 Jun 2022
  5. Decided - Granted6/2023/2464/FULL

    Alterations to shop front

    3 Maynard Place Cuffley Potters Bar EN6 4JA

    Received 7 Dec 2023
  6. Decided - Granted6/2024/1763/EM

    Installation of rear solar panels

    15 Fern Grove Welwyn Garden City AL8 7ND

    Received 12 Sept 2024
  7. Decided - Split6/2023/1078/COND

    Confirmation that all conditions associated with planning reference 6/2016/1882/FULL and 6/2016/1883/LB have been discharged

    Flat 24 Griffin Place Broadwater Road Welwyn Garden City AL7 3FD

    Received 22 May 2023
  8. Decided - GrantedS6/2008/1096/MA

    ERECTION OF SECURITY GATEHOUSE TO ENTRANCE OF EXISTING HEADQUARTERS

    T Mobile Hatfield Business ParkMosquito Way Hatfield AL10 9BW

    Received 3 Jul 2008
  9. Decided - Granted6/2023/2247/HOUSE

    Erection of an outbuilding/shed at the rear of property

    43 Briars Lane Hatfield AL10 8ES

    Received 6 Nov 2023
  10. Decided - Granted6/2015/1817/EM

    Reduce Spruce tree by 50%

    4 Corn Mead, Welwyn Garden City, AL8 7QR

    Received 26 Aug 2015
  11. Decided - RefusedN6/2013/1494/FP

    Erection of single storey side and rear extensions, two storey rear extension and new window openings to side elevation

    74 Valley Road, Welwyn Garden City, AL8 7DP

    Received 9 Jul 2013
  12. Decided - Granted6/2022/2229/FULL

    Installation of a “private-wire” electricity cable between the Energy Centre, Tewin Road and Colt Technology Services Group Limited (Option 4).

    20 Black Fan Road Welwyn Garden City AL7 1QA

    Received 27 Sept 2022
  13. Decided6/2018/1181/TPO

    Reduce level of 1 x Lawson Cypress tree by up to 30% to reduce to the level of Yew hedge - Conservation Area

    31 Brockswood Lane Welwyn Garden City AL8 7BE

    Received 4 May 2018
  14. Decided - GrantedN6/2012/2440/AD

    Installation of non-illuminated fascia sign

    Woodhall Community Centre, Mill Green Road, Community Centre, WELWYN GARDEN CITY, AL7 3XD

    Received 21 Nov 2012
  15. Decided - Granted6/2017/2722/EM

    Shared party wall of proposed extension at 52 Bridge Road

    54 Bridge Road Welwyn Garden City AL8 6UR

    Received 12 Oct 2017
  16. Decided - Granted6/2016/0805/EM

    Replacement windows and front door to property

    114 The Commons, Welwyn Garden City, AL7 4SB

    Received 28 Apr 2016
  17. Decided - GrantedW6/2013/0614/EM

    Erection of front porch

    27 Coneydale, WELWYN GARDEN CITY, AL8 7RX

    Received 25 Mar 2013
  18. Decided - GrantedW6/2015/1280/TE

    Reduce whitebeam and Beech tree by upto 33%

    127 Oakdale Welwyn Garden City AL8 7QS

    Received 16 Jun 2015
  19. Decided - Withdrawn6/2026/0074/FULL

    Formation of new entrance steps and fourteen off street parking spaces, with crossovers following removal of existing garden beds

    Swallow Court Swallowfields Welwyn Garden City AL7 1SB

    Received 16 Jan 2026
  20. Decided - Granted6/2016/1783/COND

    Approval of details reserved by Condition 3 (materials), Condition 4 (rooflight details), Condition 5 (window/door details) and Condition 7 (landscaping) of planning permission 6/2015/2359/MAJ

    51 Great North Road, Hatfield, AL9 5EN

    Received 26 Aug 2016
  21. Decided - Refused6/2025/2055/COND

    Submission of details pursuant to condition number 2 (Contamination) on planning permission 6/2025/0757/FULL

    Land & Buildings on the West side of Travellers Lane Welham Green Hatfield AL9 7HF

    Received 25 Sept 2025
  22. Decided - Granted6/2018/1132/HOUSE

    Erection of a single storey front extension and installation of front window to facilitate conversion of garage to habitable space and single storey rear extension

    13 Birch Drive Hatfield AL10 8NX

    Received 1 May 2018
  23. Decided - Granted6/2026/1082/EM

    Erection of single storey side extension

    13 Lady Grove, Welwyn Garden City, AL7 4DS

    Received 22 Jun 2026
  24. Decided - GrantedN6/2007/1893/CA

    DEMOLITION OF SINGLE STOREY REAR EXTENSION AND TWO STOREY SIDE EXTENSION

    41 SHERRARDSPARK ROAD, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7LD

    Received 11 Dec 2007

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