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
283Recorded as pending
86%Approval rate · 33,821 approved or refused records
4,819Refused applications

29,002 approved · 4,819 refused · 2,219 withdrawn. Received dates in our records: 29 Apr 1948 to 29 Oct 2026. Most recent record check: 10 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2017/0961/HOUSE

    Erection of first floor rear extension

    53 Bishops Rise Hatfield AL10 9BU

    Received 8 May 2017
  2. Decided - Granted6/2019/2923/HOUSE

    Installation of window to facilitate conversion of garage, erection of a single storey rear extension following demolition of existing conservatory and formation of hardstanding

    1 Lawrence Hall End Welwyn Garden City AL7 4FB

    Received 20 Nov 2019
  3. Decided - Granted6/2025/0905/HOUSE

    Erection of a two-storey side extension, first-floor rear extension, and ground floor rear infill extension, alterations to fenestrations and internal reconfiguration

    17 Wilga Road Welwyn AL6 9PT

    Received 16 May 2025
  4. Decided - Granted6/2023/1906/TPO

    3 Oak trees to crown lift to 5m, crown reduction by 30% to remove deadwood and overhanging branches. Covered by TPO 641 (2017) T9 & TPO24 A3.

    Oak House 3 Mardley Heights Welwyn AL6 0TX

    Received 14 Sept 2023
  5. Decided - Refused6/2018/1072/HOUSE

    Erection of single storey front porch following demolition of existing porch canopy

    15 Eastor Welwyn Garden City AL7 1PN

    Received 25 Apr 2018
  6. Decided - Granted6/2018/0959/EM

    Fell 14 x Leylandi trees, 1 x Hawthorn tree and 1 x Ash tree

    7 Lady Grove Welwyn Garden City AL7 4DS

    Received 11 Apr 2018
  7. Decided - Granted6/2026/1362/EM

    Installation of hardstanding

    135 Howlands Welwyn Garden City AL7 4RL

    Received 3 Aug 2026
  8. Decided - Granted6/2017/0471/TPO

    Reduce Wild Damson tree by 30% & Holly tree by 25% - Conservation Area

    38 Welwyn Hall Gardens Welwyn AL6 9LF

    Received 9 Mar 2017
  9. Decided - Refused6/2017/1992/LAWP

    Certificate of lawfulness for the erection of tiled canopy over bay window and front porch and installation of render following removal of weather boarding

    17 Tolmers Gardens Cuffley Potters Bar EN6 4JE

    Received 5 Sept 2017
  10. Decided - GrantedS6/2014/2361/S73B

    Variation of condition 2 (drawings) of planning permission S6/2014/1432/FP - Erection of two dwellings following the demolition of existing dwelling

    61 Calder Avenue, Brookmans Park, Hatfield, AL9 7AJ

    Received 24 Oct 2014
  11. Appeal Decided - Dismissed6/2020/0310/FULL

    Retrospective subdivision of the property from single dwelling house to 4 No. dwellings, erection of single storey conservatory extension, new external staircase; alteration to fenestrations and sub-division of single garden into 4 No. garden

    2 Darby Drive Welwyn AL6 9TE

    Received 4 Feb 2020
  12. Decided - Granted6/2019/2853/HOUSE

    Erection of single storey rear extension

    52 King James Avenue Cuffley Potters Bar EN6 4LP

    Received 12 Nov 2019
  13. Decided - Granted6/2022/0577/TC

    T1 Willow Tree- Reduction 30%

    31 Parkside Welwyn Hertfordshire AL6 9DQ

    Received 11 Mar 2022
  14. Decided - GrantedN6/2015/0970/DS

    Approval of details reserved by condition 3 (materials) and condition 4 (landscaping) on planning permission N6/2014/2154/FP

    2 Whitehill, Welwyn, AL6 9AF

    Received 7 May 2015
  15. Decided - WithdrawnS6/2012/2572/FP

    Erection of two storey rear extension following demolition of existing single storey extension and front porch

    Langate, Tylers Causeway, Newgate Street, HERTFORD, SG13 8QN

    Received 11 Dec 2012
  16. Decided - Granted6/2019/0330/EM

    Erections of summerhouse for private study and leisure purposes

    7 Beehive Lane Welwyn Garden City AL7 4BB

    Received 12 Feb 2019
  17. Decided - Refused6/2025/0632/COND

    Submission of details pursuant to condition number 6 (Archaeological Written Scheme of Investigation) on planning permission 6/2022/2317/MAJ

    Videne Hawkshead Road Little Heath Potters Bar EN6 1LX

    Received 2 Apr 2025
  18. Decided - GrantedS6/2007/1454/FP

    ERECTION OF SINGLE STOREY FRONT EXTENSION TO GARAGE

    152 Brookside Crescent Cuffley Potters Bar EN6 4QL

    Received 1 Oct 2007
  19. Decided - Granted6/2026/0101/EMT

    Birch tree reduction by approx. 30% or 6 - 8 feet to previous reduction point.

    53 Crossway Welwyn Garden City AL8 7ED

    Received 23 Jan 2026
  20. Decided6/2024/0381/TC

    1 x Apple to reduce back to previous pruning points (approx. 2m), thin remaining canopy by approximately 30% crown volume 1 x Cherry to reduce limb to where it extends over the garage

    18 Meadow Green Welwyn Garden City AL8 6SS

    Received 27 Feb 2024
  21. Decided - Granted6/2018/3120/COND

    Submission of details pursuant to condition 2 (on-site storage and regulated discharge of surface water run-off) and 17 (water drainage scheme) on planning permission 6/2018/1029/FULL

    Diocesan Education Centre Hall Grove Welwyn Garden City AL7 4PJ

    Received 7 Dec 2018
  22. Decided - Granted6/2017/0900/TPO

    2 x Sweet Chestnut trees to be re-pollarded and 2 x Sweet chestnut trees crown reduced by 2.5m covered by TPO 123 (1988)

    5 The Brambles Welwyn AL6 0PG

    Received 2 May 2017
  23. Decided - WithdrawnW6/2008/0015/EM

    FORMATION OF VEHICLE HARDSTANDING

    120 OAKDALE, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7QX

    Received 4 Jan 2008
  24. Decided - Refused6/2025/0091/EM

    Installation of air source heat pump

    162 Daniells Welwyn Garden City AL7 1QW

    Received 21 Jan 2025

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