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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
40,233Searchable applications
309Recorded as pending
86%Approval rate · 33,741 approved or refused records
4,811Refused applications

28,930 approved · 4,811 refused · 2,213 withdrawn. Received dates in our records: 29 Apr 1948 to 29 Oct 2026. Most recent record check: 6 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 Counts reflect the last collected status; some records may be out of date.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 - GrantedN6/2014/1626/AD

    Installation of 6 tombstone signs, 1 fascia sign and 2 projected signs

    Albany Place, Hyde Way, Welwyn Garden City, AL7 3BG

    Received 17 Jul 2014
  2. Decided - Granted6/2021/0774/HOUSE

    Erection of a single storey rear infill extension

    107 Crawford Road Hatfield AL10 0PF

    Received 10 Mar 2021
  3. Decided - GrantedN6/2004/1528/FP

    SINGLE STOREY PREFABRICATED EXTENSIONS TO REAR

    32 Hyde Way Welwyn Garden City AL7 3AH

    Received 12 Oct 2004
  4. Decided - GrantedN6/2009/1831/FP

    ERECTION OF SINGLE STOREY REAR EXTENSION

    20 MELBOURNE COURT, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 6LL

    Received 20 Aug 2009
  5. Decided - GrantedN6/2014/0992/NM

    Non material amendmnent following approval of planning permission N6/2013/1650/FP - The relocation of the installation of 26 Solar PV cells

    Progress House Shire Park The Boulevard Welwyn Garden City AL7 1GB

    Received 15 May 2014
  6. Decided6/2021/0253/TC

    Reduce crown of Hawthorn (T3) by around 30%

    St Lawrence Church Church Cottage Ayot AL6 9BZ

    Received 27 Jan 2021
  7. Decided - Granted6/2020/2703/HOUSE

    Erection of a single storey rear extension and decking

    Brandram Great North Road Hatfield AL9 6DA

    Received 16 Oct 2020
  8. Decided6/2019/2739/TC

    Reduce 1x Gleditsia tree crown by 2.5m Reduce 1x Cherry tree crown by 3m

    21 Dellcott Close Welwyn Garden City AL8 7BB

    Received 30 Oct 2019
  9. Decided - GrantedN6/2015/0342/TC

    Crown thin Purple Leaf Plum tree by 10% and reduction of 30%

    70 Pentley Park, Welwyn Garden City, AL8 7SG

    Received 19 Feb 2015
  10. Decided - RefusedN6/2013/1162/HH

    Erection of part single and part two storey rear extension extending 6 metres from the original rear wall, with an eaves height of 4.8 metres and maximum height of 7 metres

    112 Hollybush Lane, WELWYN GARDEN CITY, AL7 4JW

    Received 4 Jun 2013
  11. Decided - GrantedW6/2007/1007/EM

    ERECTION OF A SUMMERHOUSE IN REAR GARDEN

    41 Turmore Dale, Welwyn Garden City, AL8 6HT

    Received 25 Jun 2007
  12. Decided - Granted6/2015/2043/OUTLINE

    Redevelopment to provide floorspace equivalent to 537 Units of Development (UD) (as set out in Schedule 1) for Use Classes B1, B2, SG and Hotel use on plots 4100, 5000, 5600 and for Use Classes B1, SG and Hotel use on plot 6000 with all matters reserved except access

    Plots 4100, 5000, 5600, 6000, Hatfield Business Park, Hatfield, AL10 9UH

    Received 5 Oct 2015
  13. Decided6/2023/1877/TC

    General tree maintenance on the following: T1 Conifer - reduce by 50% and reshape T2 Bay tree - reduce by 25% and reshape T3 & T4 Conifer - crown reduction by 20% T5 Yew Tree & T6 Silver Birch - crown reduction by 15% T7 Yew Tree crown reduction by 30%

    102 Handside Lane Welwyn Garden City AL8 6SY

    Received 11 Sept 2023
  14. Decided - GrantedN6/2014/2091/DS

    Approval of details reserved by condition 3 (materials) of N6/2014/1674/FP

    35 Longcroft Lane, Welwyn Garden City, AL8 6EB

    Received 22 Sept 2014
  15. Decided - Granted6/2024/1790/EMT

    Prune back the overhanging vegetation (Leylandii and anything else) by a maximum of 30% linear length or as far as possible allowing for fresh regrowth to occur from Springfield House flats.

    12 Heather Road Welwyn Garden City AL8 6XU

    Received 17 Sept 2024
  16. Decided - GrantedW6/2007/0169/EM

    ERECTION OF SINGLE STOREY REAR EXTENSION

    8 Timbercroft, Welwyn Garden City, AL7 1NP

    Received 31 Jan 2007
  17. Decided - RefusedN6/2014/2472/FP

    Erection of a two storey rear extension

    32 London Road Woolmer Green Knebworth SG3 6JD

    Received 11 Nov 2014
  18. Decided - RefusedN6/2008/1760/FP

    ERECTION OF TWO STOREY SIDE AND REAR EXTENSION

    326 KNIGHTSFIELD, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7NQ

    Received 10 Sept 2008
  19. Decided - Granted6/2025/0445/FULL

    Erection of a new self build 5 bedroom house following the demolition of existing 5 bedroom house

    19 Carbone Hill Northaw Potters Bar EN6 4PJ

    Received 11 Mar 2025
  20. Decided - GrantedC6/1987/0330/FP

    Single storey rear extension

    38 Marsden Road, Welwyn Garden City, AL8 6XZ

    Received 1 Jan 1987
  21. Decided - Granted6/2024/0363/HOUSE

    Installation of solar panels, inverter with an indoor sited battery storage system

    4 Chatt Court Welwyn AL6 9FX

    Received 26 Feb 2024
  22. Decided - Granted6/2019/1113/EM

    Erection of a single-storey rear extension

    23 Lemsford Lane Welwyn Garden City AL8 6YN

    Received 8 May 2019
  23. Decided - GrantedS6/2004/0707/FP

    ERECTION OF TWO STOREY SIDE AND SINGLE STOREY REAR EXTENSION

    22 Glebeland Hatfield AL10 8AA

    Received 12 May 2004
  24. Decided - GrantedN6/2007/1754/FP

    ERECTION OF ONE AND A HALF STOREY SIDE EXTENSION, INCORPORATING A DORMER WINDOW

    42 Harmer Green Lane Digswell Welwyn AL6 0AT

    Received 20 Nov 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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How to search planning applications

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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