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28,849 approved · 4,801 refused · 2,206 withdrawn.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: 30 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2022/0636/PN8

    Prior approval for the erection of a single storey rear extension measuring 6m in depth, 3m in height, 2.75m to the eaves, with insertion of roof lantern following demolition of conservatory.

    43 Windsor Road Welwyn AL6 9JY

    Received 17 Mar 2022
  2. Decided6/2020/2251/TC

    Reduce 2x Red Oak Tree by 30%, reduce Horse Chestnut tree by 30% and fell of a Holly Tree covered by conservation area.

    6 Brockett Close Welwyn Garden City AL8 7BN

    Received 2 Sept 2020
  3. Decided - Refused6/2017/2945/TPO

    Fell 1 x Hornbeam tree (T5) covered by TPO 710 (2017)

    5 Oak Piece Welwyn AL6 0XE

    Received 19 Dec 2017
  4. Decided6/2023/1441/TC

    1 x Beech to reduce by 1.2m in height and 1.5m in width to retain shape and size of the tree

    27 Rooks Hill Welwyn Garden City AL8 6EU

    Received 11 Jul 2023
  5. Decided - GrantedS6/2007/1566/FP

    CONVERSION OF EXISTING END OF TERRACE DWELLING INTO TWO NO. SELF CONTAINED DWELLING HOUSES WITH NEW PARKING AREA TO THE REAR

    152 DIXONS HILL ROAD, WELHAM GREEN, HATFIELD, HERTS, AL9 7DN

    Received 24 Oct 2007
  6. Decided - Granted6/2019/3184/EM

    Crown reduce 2x apple trees by 6 ft (T3 and T5) Fell 1x Hazel Tree (T4)

    Dellcott Tennis Club Dellcott Close/Dognell Green Welwyn Garden City AL8 7BL

    Received 19 Dec 2019
  7. Decided - Granted6/2017/2967/COND

    Submission of details pursuant to condition 3 (discharge of surface water) on planning permission 6/2017/1028/MAJ

    20 Black Fan Road Welwyn Garden City AL7 1QA

    Received 22 Dec 2017
  8. Decided - Granted6/2023/1194/HOUSE

    Erection of single storey rear extension following demolition of existing conservatory and alterations to openings

    154 Parkway Welwyn Garden City AL8 6HZ

    Received 6 Jun 2023
  9. Decided - Granted6/2016/2214/MAJ

    Infill development of an existing town centre perimeter block to deliver a new hotel (Class C1) and Office (Class B1) floorspace; change of use from office to hotel use of existing floorspace at first and part second floors; and associated works

    Gate House Fretherne Road Welwyn Garden City AL8 6NS

    Received 24 Oct 2016
  10. Decided - GrantedS6/2004/1280/LB

    ERECTION OF DETACHED BARN/WORKSHOP

    Great Nast Hyde House Wilkins Green Lane Hatfield AL10 9RB

    Received 23 Aug 2004
  11. Decided - Granted6/2015/1564/HOUSE

    Erection of part single part double storey extension including extension of rear dormer window and installation of roof lights and erection of front porch following demolition of existing garage and shed

    53 Broad Acres Hatfield AL10 9LE

    Received 22 Jul 2015
  12. DecidedN6/2008/1905/TC

    WORKS TO TREE.

    LAND ADJACENT TO BIRDCROFT ROAD, WELWYN GARDEN CITY, HERTFORDSHIRE

    Received 9 Oct 2008
  13. Decided - Granted6/2022/2746/EM

    Install replacement like for like uPVC windows in the rear bedroom and replace the current uPVC front door with an Endurance composite door in keeping with the appearance of the property and the surrounding area

    24 Marsden Road Welwyn Garden City AL8 6XZ

    Received 5 Dec 2022
  14. Decided - GrantedN6/2005/1372/FP

    ERECTION OF TIMBER BUILDING.

    Lakeside School Lemsford Lane Welwyn Garden City AL8 6YN

    Received 2 Nov 2005
  15. Decided - GrantedN6/2013/1472/FP

    Garage conversion to incorporate replacing garage door with window and infill porch canopy

    16 Hunsdon Welwyn Garden City AL7 2PN

    Received 12 Jul 2013
  16. Decided - Refused6/2021/0092/LAWP

    Certificate of lawfulness for the addition of first floor to existing single storey dwelling

    45 Codicote Road Welwyn AL6 9TT

    Received 13 Jan 2021
  17. Decided - WithdrawnE6/1948/0308/

    House

    7 Densley Close Welwyn Garden City AL8 7JX

    Received 30 Apr 1948
  18. Decided - GrantedW6/2013/1695/TE

    Removal of Oak tree

    4 Middlefield, Welwyn Garden City, AL7 4DJ

    Received 16 Aug 2013
  19. Decided - GrantedS6/2015/1254/LUP

    Certificate of lawfulness for the erection of outbuilding

    Woodfield Woodfield Lane Brookmans Park Hatfield AL9 6JJ

    Received 15 Jun 2015
  20. Decided - RefusedN6/2006/0245/FP

    REPLACEMENT OF TIMBER OUTBUILDING WITH SINGLE STOREY SIDE EXTENSION

    10 Brockett Close Welwyn Garden City AL8 7BN

    Received 28 Feb 2006
  21. Decided - Granted6/2017/2721/PN8

    Prior approval for the erection of a single storey extension measuring 3m in depth, 2.92m in heights, 2.4m to the eaves

    52 Thistle Grove Welwyn Garden City AL7 4AN

    Received 20 Nov 2017
  22. Decided6/2024/0274/TC

    Willow Tree in back garden. To prune back to the previous pruning points/knuckle. Arborist will also shape the tree so that it is balanced on both sides.

    23 Boxfield Welwyn Garden City AL7 4PT

    Received 9 Feb 2024
  23. Decided - Granted6/2023/1201/EMT

    T1 x Lawson cypress to dismantle in sections to ground level

    2 Thumbswood Welwyn Garden City AL7 4QE

    Received 6 Jun 2023
  24. Decided - GrantedS6/2008/0934/FP

    EXTENSION TO EXISTING PALISADE FENCING AND RELOCATION OF ACCESS GATE

    ASDA SUPERSTORE, 98 TOWN CENTRE, HATFIELD, HERTFORDSHIRE, AL10 0JW

    Received 17 Jun 2008

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