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
40,297Searchable 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28,972 approved · 4,816 refused · 2,217 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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
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 - Granted6/2016/1413/TPO

    Reduce Eucalyptus tree by 50% - Conservation Area

    2 Meadow Green, Welwyn Garden City, AL8 6SS

    Received 5 Jul 2016
  2. Decided - Granted6/2019/2100/PN8

    Prior approval for the erection of a single storey rear extension measuring 8m in depth, 10.34m in width, and 3.375m in height

    Spindlebury Cottage Ottway Walk Welwyn AL6 9AS

    Received 21 Aug 2019
  3. Decided - Granted6/2016/2423/LAWP

    Certificate of lawfulness for a loft conversion

    48 Pine Grove Brookmans Park Hatfield AL9 7BW

    Received 11 Nov 2016
  4. Decided - Granted6/2025/0986/EMT

    1 x Hornbeam to remove in section to ground level

    147 Parkway Welwyn Garden City AL8 6JB

    Received 28 May 2025
  5. Decided - Granted6/2020/0417/HOUSE

    Erection of a front porch and single storey rear extension

    12 Wellington Drive Welwyn Garden City AL7 2NJ

    Received 13 Feb 2020
  6. Decided - Granted6/2018/3263/EM

    Conversion of existing garage into a habitable space and erection of a single storey rear extension

    237 Daniells Welwyn Garden City AL7 1QD

    Received 21 Dec 2018
  7. Decided - RefusedN6/2005/1427/TP

    WORKS TO FELL TREE T35 (POPLAR) COVERED BY TPO 260

    18 Mornington Digswell Welwyn AL6 0AJ

    Received 16 Nov 2005
  8. Decided - Granted6/2020/0029/EM

    Erection of a single storey rear extension

    21 Bedwell Close Welwyn Garden City AL7 3XH

    Received 8 Jan 2020
  9. Decided - Granted6/2022/0300/HOUSE

    Erection of a two storey side extension with installation of 1 x front facing dormer window and rear facing roof lights, installation of rear facing roof light to existing roof of main dwelling, and formation of 1 x parking space

    1 Digswell House Mews Howards Cottage Monks Rise Welwyn Garden City AL8 7AT

    Received 9 Feb 2022
  10. Decided - Granted6/2016/1188/EM

    Reduce Poplar tree crown by 40%

    71 Sweet Briar, Welwyn Garden City, AL7 3EB

    Received 14 Jun 2016
  11. Decided - RefusedN6/2004/0822/FP

    TWO STOREY SIDE EXTENSION

    21 Golden Dell Welwyn Garden City AL7 4EE

    Received 2 Jun 2004
  12. Decided - GrantedN6/2007/1316/TP

    REDUCTION OF 4 SYCAMORE TREES AND 1 LIME TREE COVERED BY TPO 132 GROUP 1

    6 Welwyn Hall Gardens Welwyn AL6 9LF

    Received 3 Sept 2007
  13. Decided6/2020/1528/TC

    Fell 1 x Ash tree Fell 1 x Hawthorn tree

    33 Applecroft Road Welwyn Garden City AL8 6JZ

    Received 29 Jun 2020
  14. Decided - Withdrawn6/2016/1221/HOUSE

    Erection of single storey rear extensions

    17 Frowick Close, Welham Green, Hatfield, AL9 7LS

    Received 20 Jun 2016
  15. Decided - Granted6/2018/1437/EM

    Installation of corner fencing, erection of a garden shed and removal front of boundary hedging to be replaced with new beech hedging

    11 Handside Lane Welwyn Garden City AL8 6SE

    Received 23 May 2018
  16. Decided - GrantedS6/2013/1703/TC

    Crown lift Chestnut, Ash, Laurel and other broadleaf species to a height of 5.5 metres over the public highway

    St Audreys Care Home Church Street Hatfield AL9 5AR

    Received 2 Aug 2013
  17. Decided - Granted6/2023/0052/EM

    Erection of a front porch

    7 High Oaks Road, Welwyn Garden City, AL8 7BJ

    Received 9 Jan 2023
  18. Decided - GrantedN6/2008/0650/FP

    ERECTION OF PITCHED ROOF OVER EXISTING FLAT ROOFED SECTION AND PORCH WITH ADDITION BRICK PIERS TO PORCH

    3 Kindersley Close Welwyn AL6 9RN

    Received 29 Mar 2008
  19. Decided - Granted6/2016/1148/EM

    Lift & Thin Acer tree (T1) 4 Acer trees (T2) (T3) (T6) & (T7) and 2 Silver Birch trees (T4 & T5) by 25%

    132 Lemsford Lane, Welwyn Garden City, AL8 6YP

    Received 1 Jun 2016
  20. Appeal Decided - Allowed6/2016/0453/LB

    Removal of glazed guilt metal hexagonal hall lantern, four bronze wall brackets, six glass wall lights, seven-branch cut-glass chandelier and cut-glass five-branch chandelier

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

    Received 17 Mar 2016
  21. Decided - Granted6/2023/2303/EMT

    T1 - Liquid Amber. Reduce back to previous cuts, approximately 2m from branch tips. T3 - Hornbeam. Crown reduction by up to 2m from branch tips, back to the previous cuts. T4 - Hornbeam. reduce back the branches by up to 2m which are overhanging the boundary. T5 - Pine. Fell to ground level. This tree previously lost its top from storm damage. T6 - Maple. Crown reduction by up to 1m from branch tips.

    19 Roundwood Drive, Welwyn Garden City, AL8 7JZ

    Received 14 Nov 2023
  22. Decided - GrantedN6/2014/0080/DS

    Discharge of conditions 5 and 6 (energy statements) of planning permission N6/2013/0491/MA

    Former Hyde Club, Hollybush Lane, Welwyn Garden City, AL7 4JS

    Received 14 Jan 2014
  23. Decided6/2025/2415/TC

    1 x Norway maple to reduce to maintain suitable size and shape, by 2m height and width (back to near previous pruning points). 1 x Cherry to reduce by 1.2m height and width.

    19 Mandeville Rise Welwyn Garden City AL8 7JT

    Received 18 Nov 2025
  24. Decided - Granted6/2020/0884/HOUSE

    Erection of first floor side/rear and single storey rear extension, and alteration of front dormer from flat to pitched roof

    2 Warwick Close Cuffley Potters Bar EN6 4RT

    Received 16 Apr 2020

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