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29,002 approved · 4,819 refused · 2,219 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2023/0733/LAWP

    Certificate of lawfulness for a proposed garage conversion to form new habitable room

    40 Wren Wood Welwyn Garden City Hertfordshire AL7 1QG

    Received 3 Apr 2023
  2. Decided - Granted6/2018/2104/EM

    Prune 1 x Mulberry (T1) back to previous pruned points (up to 2m to come off). Prune 1 x Laurel hedge group (HG2) to reduce the height by 0.5m-1m to level top off and trim back the top half front edge to maintain a straight front edge. Prune 1 x Wiseria group (CL3) around vent pipes on wall and install 3 x wire and fixings to train wisteria to grow around window. Remove resulting debris for all.

    3 Brockett Close Welwyn Garden City AL8 7BN

    Received 13 Aug 2018
  3. Decided - Granted6/2015/1983/FULL

    Erection of 4no apartments consisting of 2no one bed apartments and 2no two bed apartments and associated parking following demolition of existing workshop

    2 New Road Welwyn Garden City AL8 7TX

    Received 21 Sept 2015
  4. Decided6/2024/1456/TC

    1 x Bay to reduce width to existing hedge width, reduce height by 2.5m

    7 Attimore Close Welwyn Garden City AL8 6LN

    Received 1 Aug 2024
  5. Decided - Refused6/2020/2886/HOUSE

    Demolition of existing garage and store rooms to the side, erection of two storey front/side and rear extension. Erection of single storey extension with part glazed roof and roof with roof light to existing front roof. A new raised patio area with metal railings, removal of chimney and addition of solar panels. Pitched roof to existing front dormer.

    27 Warren Way Digswell Welwyn AL6 0DQ

    Received 5 Nov 2020
  6. Decided - Granted6/2018/1247/COND

    Submission of details pursuant to condition 2 (materials samples), 4 (tree protection plan, arboricultural method statement and site monitoring schedule), 6 (hard and soft landscaping), 8 (scheme for protection, retention and reinstatement of historic milestone) and 9 (construction management plan) on planning permission 6/2016/0168/FULL, dated 21/07/2016

    Swan Lodge Bell Lane Brookmans Park Hatfield AL9 7AY

    Received 11 May 2018
  7. Decided6/2025/2108/TC

    2 x Plum to reduce by 2.5m height and width.

    26 Attimore Road Welwyn Garden City AL8 6LP

    Received 2 Oct 2025
  8. Decided - GrantedS6/2015/0165/FP

    Erection of single storey rear extension, two storey side extension and replacement of existing dormer to front of house

    8 Thrush Lane, Cuffley, Potters Bar, EN6 4JU

    Received 27 Jan 2015
  9. Decided - GrantedN6/2008/0609/FP

    ERECTION OF TWO STOREY AND FIRST FLOOR SIDE EXTENSIONS AND SINGLE STOREY REAR EXTENSION AND NEW REAR DORMER

    26 Canonsfield Road Welwyn AL6 0QH

    Received 25 Mar 2008
  10. Decided - GrantedN6/2009/1296/FP

    ERECTION OF REAR CONSERVATORY

    5 WEST MEAD, WELWYN GARDEN CITY, HERTFORDSHIRE, AL7 4SA

    Received 18 Jun 2009
  11. Decided - Granted6/2022/2916/HOUSE

    Erection of rear extension with hipped roof and a raised platform to provide stair access to the rear garden

    6 King James Avenue Cuffley Potters Bar EN6 4LR

    Received 29 Dec 2022
  12. Decided - GrantedN6/2007/0779/FP

    ERECTION OF REAR CONSERVATORY.

    18 Beechfield Road Welwyn Garden City AL7 3RF

    Received 24 May 2007
  13. Decided - GrantedS6/2013/1747/FP

    Erection of pitched roof and canopy following removal of existing flat roof

    17 Calder Avenue, Brookmans Park, Hatfield, AL9 7AH

    Received 14 Aug 2013
  14. Decided - GrantedN6/2009/2486/TE

    FELLING OF SILVER BIRCH TREE

    106 HANDSIDE LANE, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 6SY

    Received 26 Nov 2009
  15. Decided - Granted6/2022/1597/EMT

    1 x Spruce to lift by approximately 2m (app 10 branches)

    3 Brockswood Lane Welwyn Garden City AL8 7BA

    Received 6 Jul 2022
  16. Decided - RefusedN6/2015/0319/NM

    Non material amendment following approval of planning permission N6/2014/0185/FP - Alterations to internal layout including repositioning of windows and doors to suit layout

    50 Reynards Road Welwyn AL6 9TP

    Received 13 Feb 2015
  17. Decided - Refused6/2020/1749/LAWP

    Certificate of Lawfulness for the erection of a loft conversion

    32 Westland Drive Hatfield AL9 7UQ

    Received 16 Jul 2020
  18. Decided - RefusedS6/2009/1005/AG

    ERECTION OF GENERAL PURPOSE STORAGE BARN, HARDSTANDING & RE-GRADING OF LAND

    SPARROW FARM, NEWGATE STREET VILLAGE, HERTFORD, HERTFORDSHIRE, SG13 8RG

    Received 11 May 2009
  19. Appeal Decided - DismissedN6/2009/0109/FP

    ERECTION OF SINGLE STOREY REAR EXTENSION

    The Old Post House, 6 Ayot Green Ayot St Peter Welwyn AL6 9AB

    Received 21 Jan 2009
  20. Decided - Withdrawn6/2015/2003/PN11

    Prior approval for the change of use from office to residential to provide 246 units

    Rank Xerox Technical Centre, Bessemer Road, Welwyn Garden City, AL7 1HE

    Received 28 Sept 2015
  21. Decided - Refused6/2023/1667/LAWP

    Certificate of lawfulness for erection of a single storey rear extension

    33 The Paddocks Welwyn Garden City AL7 2BW

    Received 10 Aug 2023
  22. Decided - Withdrawn6/2016/1374/LAWP

    Certificate of lawfulness for the replacement of the existing timber windows and roof with PVC frames

    53 Cranfield Crescent, Cuffley, Potters Bar, EN6 4DZ

    Received 6 Jul 2016
  23. Decided - GrantedN6/2015/0966/FP

    Conversion of garage to utility room

    62 Valley Road, Welwyn Garden City, AL8 7DN

    Received 7 May 2015
  24. Decided - GrantedN6/2013/1314/TC

    Fell Two Conifer trees and One Ash tree

    40 Reddings, WELWYN GARDEN CITY, AL8 7LA

    Received 13 Jun 2013

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