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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29,002 approved · 4,819 refused · 2,219 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2016/1889/LAWP

    Certificate of lawfulness for a loft conversion

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

    Received 12 Sept 2016
  2. Decided - GrantedN6/2015/0154/FP

    Erection of two storey side extension and rear dormers

    39 Hyde Way, Welwyn Garden City, AL7 3AE

    Received 28 Jan 2015
  3. Decided - Refused6/2022/2211/EM

    Erection of a single storey rear extension and garage conversion, following the demolition of conservatory

    41 Longcroft Lane Welwyn Garden City AL8 6EB

    Received 23 Sept 2022
  4. Decided - GrantedW6/2013/0471/TE

    Fell diseased Silver Birch tree

    59 Woodland Rise, WELWYN GARDEN CITY, AL8 7LJ

    Received 8 Mar 2013
  5. Decided - Refused6/2022/2209/HOUSE

    Erection of single storey rear extension and garage conversion, following demolition of conservatory.

    41 Longcroft Lane Welwyn Garden City AL8 6EB

    Received 23 Sept 2022
  6. Decided - Withdrawn6/2019/0118/HOUSE

    Erection of a single storey rear extension and part conversion of the loft into habitable space

    6 Garden Road Woolmer Green Knebworth SG3 6JZ

    Received 22 Jan 2019
  7. Decided - GrantedS6/2014/0400/AG

    Proposed metal storage shed

    Warren Wood, Newgate Street, Hertford, SG13 8NH

    Received 25 Feb 2014
  8. Decided - GrantedN6/2008/0092/FP

    RESTORATION OF CHIMNEY

    6 THE QUADRANGLE, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 6SG

    Received 17 Jan 2008
  9. Decided - Granted6/2020/2220/COND

    Submission of details pursuant to condition 12 (commercial sound insulation) on planning permission 6/2019/1067/MAJ

    Hill-Top Neighbourhood Centre High View Hatfield AL10 8HZ

    Received 1 Sept 2020
  10. Decided - GrantedN6/2009/2139/TC

    REMOVAL OF MALUS TREE LOCATED AT FRONT GARDEN, REMOVAL OF CHERRY TREE AT SIDE OF HOUSE AND CROWN REDUCE PURPLE PLUM TREE BY 30% LOCATED IN REAR GARDEN

    7 STONEMEAD, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7LX

    Received 30 Sept 2009
  11. Decided - Granted6/2025/0218/PN8

    Single storey rear extension measuring 6m in length, 2.9m at eaves height and maximum height 3m.

    69 Crawford Road Hatfield AL10 0PF

    Received 10 Feb 2025
  12. Decided - Withdrawn6/2016/2000/LAWP

    Certificate of lawfulness for the conversion of roof space to a habitable accommodation with the inclusion of 3 no. flat roof dormer windows

    Netherfield, Vineyards Road, Northaw, Potters Bar, EN6 4PH

    Received 28 Sept 2016
  13. Decided - Granted6/2025/0661/HOUSE

    Erection of a two storey rear extension and alterations to front and side elevations

    69 Crawford Road Hatfield AL10 0PF

    Received 4 Apr 2025
  14. Decided - Granted6/2023/2528/FULL

    Erection of a dwelling, installation of swimming pool, natural swimming pond and associated rear garden outbuildings and level changes following demolition of existing dwelling

    98 Harmer Green Lane Digswell Welwyn Hertfordshire AL6 0ES

    Received 20 Dec 2023
  15. Decided - Granted6/2025/0736/HOUSE

    Erection of single storey front extension with canopy

    10 Birch Drive Hatfield AL10 8NX

    Received 17 Apr 2025
  16. Decided - GrantedS6/2015/0019/DS

    Approval of details reserved by condition 3 (details of first floor glazing) of planning permission S6/2012/0095/FP

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

    Received 8 Jan 2015
  17. Decided - Granted6/2019/1095/EM

    Fell 1 x Cherry tree Fell 1 x Lawson Cypress

    35 Marley Road Welwyn Garden City AL7 4BT

    Received 7 May 2019
  18. Decided - RefusedS6/2008/1401/FP

    ERECTION OF SINGLE STOREY FRONT EXTENSION

    36 Bramble Road Hatfield AL10 9SA

    Received 12 Aug 2008
  19. Decided - Granted6/2023/1142/HOUSE

    Erection of single storey rear extension following demolition of conservatory

    3 Kingsmead Cuffley Potters Bar EN6 4AN

    Received 31 May 2023
  20. Decided - WithdrawnW6/2006/0213/EM

    PROPOSED VEHICLE HARDSTANDING

    585 Howlands, Welwyn Garden City, AL7 4HT

    Received 17 Feb 2006
  21. Decided - GrantedW6/2009/1365/EM

    INSTALLATION OF FRONT ENTRANCE GATES

    3 SHEEPCOTE, WELWYN GARDEN CITY, HERTFORDSHIRE, AL7 4QA

    Received 29 Jun 2009
  22. Decided - RefusedS6/2010/0271/FP

    ERECTION OF 5x2 BEDROOM AND 4x1 BEDROOM FLATS WITH ASSOCIATED ACCESS AND PARKING

    LAND REAR OF, 59 STATION ROAD, CUFFLEY, POTTERS BAR, HERTFORDSHIRE, EN6 4HX

    Received 16 Feb 2010
  23. Decided - RefusedW6/2006/0060/EM

    ERECTION OF 2 STOREY SIDE AND SINGLE STOREY SIDE AND REAR EXTENSIONS

    15A Guessens Road, Welwyn Garden City, AL8 6QL

    Received 18 Jan 2006
  24. Decided - Granted6/2019/1162/EM

    Reduce whole crown by 30% and remove trunk adventitious growth to height of 3m on Oak

    67 Rowans Welwyn Garden City AL7 1NZ

    Received 13 May 2019

Records are ordered by application ID, not submission date. Use search to find a particular address or proposal.

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Researching a proposal in Welwyn Hatfield Borough Council

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How to search planning applications

Guides to planning records

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    Planning application documents: what to read first

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  • 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.

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  • 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.

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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.

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