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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
40,024Searchable applications
298Recorded as pending
86%Approval rate · 33,566 approved or refused records
4,794Refused applications

28,772 approved · 4,794 refused · 2,199 withdrawn. Received dates in our records: 29 Apr 1948 to 26 Oct 2026. Most recent record check: 29 Oct 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2020/0379/HOUSE

    Erection of single storey rear extension

    9 Redwoods Welwyn Garden City AL8 7NR

    Received 11 Feb 2020
  2. Decided - GrantedS6/2015/1043/FP

    Erection of first floor rear extension

    Meadow Lodge Coopers Lane Northaw Potters Bar EN6 4NG

    Received 19 May 2015
  3. Decided - GrantedN6/2007/1686/LU

    CERTIFICATE OF LAWFULNESS FOR USE AS M.O.T STATION.

    LISLES MOTOR REPAIR LTD, LONDON ROAD, WOOLMER GREEN, KNEBWORTH, HERTFORDSHIRE, SG3 6JB

    Received 9 Nov 2007
  4. Decided - GrantedN6/2012/2570/DS

    Discharge of conditions 3 (materials) and 4 (landscaping) of planning permission N6/2012/0692/FP

    6 Fordwich Road, WELWYN GARDEN CITY, AL8 6EY

    Received 10 Dec 2012
  5. Decided - GrantedN6/2012/2618/FP

    Loft conversion with two front and three rear dormer windows, including the removal of three chimneys and erection of rear single storey extension

    12 Robbery Bottom Lane Welwyn AL6 0UW

    Received 12 Dec 2012
  6. Decided - RefusedN6/2008/2444/LU

    CERTIFICATE OF LAWFULNESS FOR A PROPOSED SINGLE STOREY EXTENSION TO THE GARAGE

    9 POPLARS, WELWYN GARDEN CITY, HERTFORDSHIRE, AL7 2AL

    Received 12 Dec 2008
  7. Decided - GrantedS6/2013/2569/FP

    Erection of two storey front and side extension and first floor rear extension

    46 Tolmers Road, Cuffley, Potters Bar, EN6 4JF

    Received 2 Dec 2013
  8. Decided - Granted6/2015/2523/TPO

    Reduce Oak and Hornbeam tree by 20% - Conservation Area

    27 Roundwood Drive, Welwyn Garden City, AL8 7JZ

    Received 18 Dec 2015
  9. Decided - Granted6/2020/3309/EM

    Garage conversion, single storey side and rear infills, and removal of hedge to front boundary.

    9 Moorend Welwyn Garden City AL7 4QL

    Received 9 Dec 2020
  10. Decided - Granted6/2024/0209/FULL

    Change of use of first floor from C3 residential to Class E(e) dental use, associated with the existing ground floor dental practice

    5-7 Birchwood Avenue Hatfield AL10 0PL

    Received 2 Feb 2024
  11. Decided - Refused6/2024/1163/COND

    Submission of details pursuant to Condition 3 and 26 (Site Waste Management) on Planning permission 6/2019/3024/MAJ

    29 Broadwater Road Welwyn Garden City AL7 3BQ

    Received 21 Jun 2024
  12. Appeal Decided - Allowed6/2021/2501/HOUSE

    Retention of summer house and sliding gate

    2 Barlow Close Hatfield AL10 9GZ

    Received 25 Aug 2021
  13. Decided - Granted6/2023/0254/EM

    Erection of a double detached garage following the demolition of existing attached garage and removal of Cypress and Hawthorn hedge. Extension to driveway, new hedging and 2m high fencing

    11 Aldock Welwyn Garden City AL7 4QF

    Received 2 Feb 2023
  14. Decided - GrantedN6/2006/0533/FP

    ERECTION OF REAR CONSERVATORY

    43 Broomfield Road Welwyn AL6 9DL

    Received 25 Apr 2006
  15. Decided - GrantedW6/2014/1477/EM

    Garage conversion and alterations

    10 Cole Green Lane, Welwyn Garden City, AL7 3PW

    Received 27 Jun 2014
  16. Decided - Granted6/2025/2420/TPO

    Hornbeam tree to reduce back to previous pruning points (repollard). 2 x Silver birches to crown reduce by 30%. Covered by TPO 24 A3 and TPO 641 (2017)

    20 Mardley Heights Welwyn AL6 0SX

    Received 18 Nov 2025
  17. Decided6/2024/2120/TC

    1 x Honey locust to reduce faulted stem by 2m. Reduce remaining tree by around 1.2m to balance canopy. Reducing faulted stems to improve form and for future growth. 1 x Hawthorn to reduce by around 1.5m in height, reduce width by 1.2m. creating a more compact shape. To retain size and shape

    17 Barleycroft Green Welwyn Garden City AL8 6JY

    Received 4 Nov 2024
  18. Decided6/2024/0367/TC

    T1 Crab apple to crown reduce by up to 30%.

    4 Hall Grove Welwyn Garden City AL7 4PL

    Received 26 Feb 2024
  19. Decided - RefusedN6/2007/0213/FP

    ERECTION OF A SINGLE STOREY SIDE AND FRONT EXTENSION

    50 Carvers Croft Woolmer Green Knebworth SG3 6LX

    Received 8 Feb 2007
  20. Decided - WithdrawnS6/2014/1551/FP

    Proposed alterations to provide a granny annex to first floor

    Holwell Manor, Holwell Lane, Essendon, Hatfield, AL9 5RG

    Received 10 Jul 2014
  21. Decided - GrantedN6/2013/1288/OR

    Prior approval for change of use of existing two storey office building (Use Class B1a) to 22 x studio apartments,15 x 2 bedroom apartments and 8 x 1 bedroom apartments (Use Class C3)

    Unit 1 Sterling Court, Mundells, Welwyn Garden City, AL7 1FT

    Received 21 Jun 2013
  22. Decided - Granted6/2025/2391/EM

    Erection of a single storey side extension

    8 Great Break Welwyn Garden City AL7 3EZ

    Received 13 Nov 2025
  23. Decided6/2019/3190/TC

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

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

    Received 19 Dec 2019
  24. Decided - Granted6/2023/1959/EM

    Removal of hedge and tree at the front of the property and then install a resin bound driveway

    35 Crossway, Welwyn Garden City, AL8 7ED

    Received 22 Sept 2023

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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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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