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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29,002 approved · 4,819 refused · 2,219 withdrawn.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: 9 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 Counts reflect the last collected status; some records may be out of date.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. Decided6/2024/1596/TC

    T1 Conifer row to reduce in height by approx 4m (to the height of the yew tree), and to remove two stems on the end tree as they are overhanging the neighbours property.

    35 Bridge Road Welwyn Garden City AL8 6UG

    Received 21 Aug 2024
  2. Decided - GrantedN6/2005/1241/FP

    ERECTION OF SINGLE STOREY REAR CONSERVATORY

    64 Chequers Welwyn Garden City AL7 4SJ

    Received 5 Oct 2005
  3. Decided - Refused6/2017/2664/LAWP

    Certificate of Lawfulness for the erection of 2x single storey side extensions, erection of outbuilding and the installation of dormer widow

    Manor Cottage Vineyards Road Northaw Potters Bar EN6 4PQ

    Received 15 Nov 2017
  4. Decided - Granted6/2020/2862/EMT

    1. Reduction of two Ash trees in rear garden by 20% to previous cutting points 2. Reduction to 1.5m of Hawthorne in front garden and removal of ivy

    12 The Old Drive Welwyn Garden City AL8 6TB

    Received 2 Nov 2020
  5. Decided - Granted6/2024/1406/HOUSE

    Erection of two storey side and rear extension and single storey rear extension

    24 Selwyn Avenue Hatfield AL10 9NP

    Received 24 Jul 2024
  6. Decided - GrantedS6/2014/0504/FP

    Erection of single storey side, front and rear extension

    5 Heathcote Avenue Hatfield AL10 0RQ

    Received 6 Mar 2014
  7. Decided - Granted6/2017/0596/HOUSE

    Conversion of existing bungalow to chalet style bungalow including an increase in ridge height, the erection of ground floor rear & side extensions and first floor front, rear & side extensions

    7 Roundabout Lane Welwyn AL6 0TH

    Received 23 Mar 2017
  8. Decided - Granted6/2020/1157/EMT

    Fell 1 x Oak tree

    290 Knightsfield Welwyn Garden City AL8 7NQ

    Received 21 May 2020
  9. Decided - Granted6/2024/1984/HOUSE

    Garage conversion with extension to rear, alterations to the fenestration and raising of roof

    26 Parkfields Welwyn Garden City AL8 6ED

    Received 15 Oct 2024
  10. Decided - GrantedS6/2013/0899/FP

    Erection of single storey rear/side extension

    25 Theobalds Road, Cuffley, POTTERS BAR, EN6 4HQ

    Received 25 Apr 2013
  11. Decided - GrantedS6/2004/1623/FP

    ERECTION OF PART TWO STOREY SIDE AND REAR EXTENSION, PART SINGLE STOREY REAR EXTENSION

    1 Meadow Croft Hatfield AL10 0SG

    Received 2 Nov 2004
  12. Decided6/2026/1468/TC

    1 x Hawthorn to reduce height to leave around 4-5m above ground level. To retain balance and minimise overhang to neighbours garden

    6 Parkway Close Welwyn Garden City AL8 6HJ

    Received 19 Aug 2026
  13. Decided - GrantedN6/2007/1713/AD

    INSTALLATION OF NON-ILLUMINATED FASCIA SIGN

    UNIT 6 MALLOW PARK, WATCHMEAD, WELWYN GARDEN CITY, HERTFORDSHIRE, AL7 1GX

    Received 13 Nov 2007
  14. Decided - Granted6/2026/0729/PN8

    Prior approval for the erection of a single storey rear extension, measuring 6m in depth, 3m in height and 2.90m to the eaves

    100 Crawford Road Hatfield AL10 0PE

    Received 24 Apr 2026
  15. Decided - GrantedN6/2004/0881/FP

    ERECTION OF REAR CONSERVATORY.

    52 Furzefield Road Welwyn Garden City AL7 3RJ

    Received 9 Jun 2004
  16. Decided - GrantedN6/2010/0348/TC

    REDUCE WEEPING WILLOW TREE IN REAR GARDEN BY 25%

    6 LYTTON GARDENS, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 6EG

    Received 26 Feb 2010
  17. Decided - Granted6/2021/0116/LAWP

    Certificate of lawfulness for loft conversion with 2 x side facing dormers, insertion of 1 x front facing roof light and 1 x rear facing roof light.

    39 Great North Road Welwyn Garden City AL8 7TJ

    Received 15 Jan 2021
  18. Decided - Granted6/2018/2721/HOUSE

    Erection of a single storey side and rear extension

    124 Dawley Welwyn Garden City AL7 1DX

    Received 23 Oct 2018
  19. Decided - Refused6/2020/2192/EMH

    First floor extension to convert existing chalet bungalow into a house. Erection of new front porch and alterations to external fenestration and driveway.

    13 Digswell Park Road Welwyn Garden City AL8 7NW

    Received 27 Aug 2020
  20. Decided - GrantedW6/2004/1046/EM

    ERECTION OF A SINGLE STOREY REAR EXTENSION

    4 Postfield, Welwyn Garden City, AL7 1NE

    Received 9 Jul 2004
  21. Decided6/2025/2526/TC

    T1 Fell 1 x Hawthorn. T2 Fell 1 x Crab apple tree. T3 Fell 1 x Hazel tree.

    7 Sherrardspark Road Welwyn Garden City AL8 7JW

    Received 5 Dec 2025
  22. Decided - Granted6/2025/2402/HOUSE

    Repair and colour change to existing brickwork

    11A High Street Welwyn AL6 9EE

    Received 17 Nov 2025
  23. Decided - GrantedS6/2014/2607/FP

    Erection of two storey side extension, first floor rear extension and single storey front extension. Formation of rear dormer and installation of roof light within the front roof slope

    28 Hill Rise, Cuffley, Potters Bar, Hertfordshire, EN6 4EJ

    Received 1 Dec 2014
  24. Decided - Granted6/2020/2749/LAWP

    Lawful development certificate for the construction of dormer to rear of the property.

    58 Great Ley Welwyn Garden City AL7 4TL

    Received 22 Oct 2020

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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  • 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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