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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
40,146Searchable applications
300Recorded as pending
86%Approval rate · 33,676 approved or refused records
4,802Refused applications

28,874 approved · 4,802 refused · 2,208 withdrawn. Received dates in our records: 29 Apr 1948 to 26 Oct 2026. Most recent record check: 1 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2020/3174/EMT

    1 x Plum tree - Reduce width by 1m

    20 Attimore Road Welwyn Garden City AL8 6LW

    Received 25 Nov 2020
  2. Decided - Granted6/2026/0941/EM

    Installation of one Aircon unit

    20 Turmore Dale Welwyn Garden City AL8 6HS

    Received 28 May 2026
  3. Decided - Granted6/2019/1513/EM

    Erection of single storey side/rear extension and alterations to openings

    3 Walden Road Welwyn Garden City AL8 7PE

    Received 20 Jun 2019
  4. Decided - Granted6/2022/0243/HOUSE

    Erection of a single storey rear extension with flat roof, part two storey rear and two storey side extension following demolition of existing garage.

    5 Coulter Close Cuffley Potters Bar Hertfordshire EN6 4RR

    Received 2 Feb 2022
  5. Decided - Granted6/2018/3169/COND

    Submission of details pursuant to condition 1 (development in agreement with scheme of remediation) on planning application 6/2018/2085/FULL

    The East Great North Road Welwyn Garden City AL8 7TB

    Received 12 Dec 2018
  6. Decided - Granted6/2021/0848/TPO

    Lime (T2) - Crown raise over car park space by 2m. Remove epicormics from base as part of general maintenance Lime (T4) - Crown lift above fence by approx 1m, as encroaching onto neighbouring property and car spaces. Lime (T5) - Crown lift above fence by approx 1m, as encroaching onto neighbouring property and car spaces. Covered by TPO 918

    85 Prospect Place Great North Road Hatfield AL9 5AB

    Received 16 Mar 2021
  7. Decided - Granted6/2025/2348/EM

    Erection of rear extension to outbuilding and rebuild covered area

    200 Heronswood Road Welwyn Garden City AL7 3JQ

    Received 6 Nov 2025
  8. Decided - GrantedW6/2013/1559/EM

    Erection of single storey and two storey rear extensions

    137 Ludwick Way, Welwyn Garden City, AL7 3PN

    Received 26 Jul 2013
  9. Decided - Refused6/2018/1296/LAWP

    Certificate of lawfulness for a single storey outbuilding

    51 School Lane Welwyn AL6 9PL

    Received 16 May 2018
  10. Decided - Granted6/2020/2980/LB

    Relocation of first floor W.C from bedroom 3 to bedroom 2 and installation new soil vent pipe

    33 School Lane Welwyn AL6 9PQ

    Received 12 Nov 2020
  11. Decided - Refused6/2018/2900/HOUSE

    Two storey rear extension

    22 Selwyn Drive, Hatfield, AL10 9NJ

    Received 12 Nov 2018
  12. Decided - GrantedC6/1988/0174/FP

    Two storey and single storey rear extension, and garage

    10 Dellcott Close, Welwyn Garden City, AL8 7BD

    Received 1 Jan 1988
  13. Decided - GrantedS6/2009/2697/FP

    ENTRANCE AND RECEPTION REMODELLING COMPRISING PARTIAL DEMOLITION OF EXISTING BUILDING, ERECTION OF NEW EXTENSION AND ASSOCIATED LANDSCAPING

    Prince Edward Hall University Of Hertfordshire College Lane Hatfield AL10 9AB

    Received 16 Dec 2009
  14. Decided - Granted6/2021/1046/FULL

    Siting of storage container and erection of covered storage area (retrospective)

    19 Bullens Green Lane (Land rear of) Hatfield AL4 0QR

    Received 30 Mar 2021
  15. Decided - GrantedW6/2013/2733/EM

    Replacement roof on conservatory

    37 Digswell Park Road, Welwyn Garden City, AL8 7NW

    Received 24 Dec 2013
  16. Decided - Granted6/2021/1452/HOUSE

    Erection of two storey side extension, part single/part first floor rear extension, front porch and rear dormer; increase in height of main roof; insertion of 2no front rooflights, 1no side rooflight and 1no rear rooflight; and external alterations.

    3 Upland Drive Brookmans Park AL9 6PS

    Received 10 May 2021
  17. Appeal Decided - DismissedS6/2007/0921/FP

    ERECTION OF DETACHED GARAGE

    3 Church Close Cuffley Potters Bar EN6 4LS

    Received 21 Jun 2007
  18. Decided - GrantedS6/2006/0302/FP

    PROVISION OF ANCILLARY RESIDENTIAL ACCOMMODATION AT FIRST FLOOR LEVEL ABOVE EXISTING GARAGE COMPRISING GROUND FLOOR ALTERATIONS, ENLARGEMENT OF GARAGE ROOF INCLUDING FOUR DORMER WINDOWS

    18 The Ridgeway Cuffley Potters Bar EN6 4AR

    Received 10 Mar 2006
  19. Decided - Withdrawn6/2018/0551/TPO

    Removal of conifer hedge at front of property and privet hedge in rear garden both to be replaced with a mixed shrub border.

    13 Marley Road Welwyn Garden City AL7 4BT

    Received 23 Feb 2018
  20. Decided - GrantedN6/2004/0859/TP

    WORK TO TREES COVERED BY TPO 24, REDUCE CROWN OF NO.1 OAK TREE AND REMOVAL OF OTHER OAK TREE

    4 Mardley Heights Welwyn AL6 0TX

    Received 4 Jun 2004
  21. Decided - Granted6/2023/1046/HOUSE

    Erection of two storey side extension, single storey rear extension, entrance canopy, rear dormer and garden room, following demolition of existing garage.

    52 Mymms Drive Brookmans Park Hatfield AL9 7AF

    Received 18 May 2023
  22. Decided - Granted6/2016/1963/HOUSE

    Erection of single storey rear and first floor rear extension with internal alterations and landscaping

    38 Harmer Green Lane Digswell Welwyn AL6 0AT

    Received 26 Sept 2016
  23. Decided - Granted6/2020/0913/COND

    Submission of details pursuant to conditions 1 (external materials) and 2 (construction method statement) on planning permission 6/2019/2587/VAR, dated 23/12/2019

    Stanborough School Lemsford Lane Welwyn Garden City AL8 6YR

    Received 21 Apr 2020
  24. Decided - RefusedN6/2007/0690/FP

    ERECTION OF TWO STOREY AND SINGLE STOREY REAR EXTENSION; INSERTION OF DORMER WINDOW IN REAR FACING ROOF-SLOPE

    9 Hazel Close Digswell Welwyn AL6 0DJ

    Received 2 May 2007

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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Guides to planning records

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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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