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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
322Recorded as pending
86%Approval rate · 33,788 approved or refused records
4,816Refused applications

28,972 approved · 4,816 refused · 2,217 withdrawn. Received dates in our records: 29 Apr 1948 to 29 Oct 2026. Most recent record check: 7 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2017/1028/MAJ

    Erection of 4 x 2 level data halls, alterations to car park, external emergency generator installation, rooftop air handling plant, additional level to existing sub-station and high level containment trestle

    20 Black Fan Road Welwyn Garden City AL7 1QA

    Received 12 May 2017
  2. Decided - RefusedN6/2007/1710/FP

    ERECTION OF FIRST FLOOR SIDE EXTENSION

    37 DIGSWELL PARK ROAD, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7NW

    Received 13 Nov 2007
  3. Decided - Granted6/2017/2018/HOUSE

    Erection of a single storey, part two storey rear extension following demolition of existing rear conservatory and alterations to openings

    6 Norman Road Welwyn AL6 9JP

    Received 11 Sept 2017
  4. Decided - Granted6/2019/2085/HOUSE

    Erection of a single storey annex for ancillary use following demolition of existing summer house

    97 Crawford Road Hatfield AL10 0PF

    Received 21 Aug 2019
  5. Decided - Refused6/2018/1180/HOUSE

    Erection of a two storey rear extension and installation of 4 x rooflights to facilitate loft conversion

    51 Homewood Avenue Cuffley Potters Bar EN6 4QQ

    Received 4 May 2018
  6. Appeal Decided - Dismissed6/2023/0619/FULL

    Erection of a single storey, part two storey rear extension with subdivision of plot to facilitate creation of end of terrace dwelling

    189 Boundary Lane Welwyn Garden City AL7 4EJ

    Received 20 Mar 2023
  7. Decided - Granted6/2024/0096/EMT

    Monolithing of declining Eucalyptus tree

    37 Great Break Welwyn Garden City AL7 3EZ

    Received 15 Jan 2024
  8. Decided - GrantedW6/2004/1736/EM

    ERECTION OF REAR CONSERVATORY

    4 Scotts View Welwyn Garden City AL8 6HF

    Received 24 Nov 2004
  9. Decided - Granted6/2021/1033/HOUSE

    Erection of single and two storey rear extension

    29 Garden Avenue Hatfield AL10 8LL

    Received 29 Mar 2021
  10. Decided - Granted6/2019/2512/HOUSE

    Erection of part single and part two storey rear extension and installation of 6x roof lights following demolition of existing conservatory

    17 The Valley Green Welwyn Garden City AL8 7DQ

    Received 7 Oct 2019
  11. Decided - GrantedS6/2013/2272/LUP

    Certificate of lawfulness for a proposed loft conversion incorporating rear dormer

    32 Jasmine Gardens Hatfield AL10 0BH

    Received 23 Oct 2013
  12. Decided - Granted6/2024/0314/TPO

    T1 Yew, crown reduction by up to 1m in radius around the whole circumference and up to 2m in height. All points to suitable growth points. T2 Yew, crown reduction by up to 1m in radius around the whole circumference and up to 2m in height. All points to suitable growth points. Covered by TPO 1071 (2023)

    17A Beehive Green Welwyn Garden City AL7 4BE

    Received 16 Feb 2024
  13. Decided - Refused6/2017/1904/FULL

    Erection of 1 x 3-bedroom house with double detached garage

    3 Hangmans Lane Welwyn AL6 0TJ

    Received 24 Aug 2017
  14. Decided - Granted6/2026/0323/TPO

    TPO 633 - 2 x Oak to reduce by 2m height & 2m width. Reducing back to near previous pruning points to maintain cyclical maintenance and prevent over extended growth 2 x Beech to reduce by 2m height & 2m width. this is over extended the neighbouring property. Reducing back to near previous pruning points. The larger of the two trees has a decay pocket low on trunk

    5 The Drive Welwyn AL6 0TW

    Received 20 Feb 2026
  15. Decided - Granted6/2020/0540/LAWP

    Certificate of lawfulness for the creation of crossover from Monkswood and provision of single parking space, with part removal of hedge to front boundary.

    9 Monkswood Welwyn Garden City AL8 7EF

    Received 25 Feb 2020
  16. Decided - GrantedS6/2004/1401/AD

    INTERNALLY ILLUMINATED SIGNAGE

    3 Great North Road Brookmans Park Hatfield AL9 6LB

    Received 17 Sept 2004
  17. DecidedS6/2014/1028/CD

    Diversion of foothpath (Northaw 15)

    Northaw Public Path 15, Northaw

    Received 21 May 2014
  18. Decided - Granted6/2025/2522/HOUSE

    Erection of a single storey rear extension

    3 Bradgate Cuffley Potters Bar EN6 4RW

    Received 4 Dec 2025
  19. Decided - Granted6/2019/2453/HOUSE

    Erection of part single, part first floor side extension, two storey side extension, alterations to the roof to form a gable end with an increase in ridge height and front and rear dormers, single storey rear extension and external raised terrace following part demolition of the existing roof and side and rear extensions

    12 King James Avenue Cuffley Potters Bar EN6 4LR

    Received 2 Oct 2019
  20. Decided - Refused6/2025/0930/LAWP

    Certificate of lawfulness for a single storey rear extension and demolition of timber shed

    15 Barnfield Road Welwyn Garden City AL7 3TQ

    Received 20 May 2025
  21. Decided - Granted6/2023/2561/VAR

    Variation of condition 1 (proposed materials to match existing) on planning permission 6/2020/1807/HOUSE

    24 Thistle Grove Welwyn Garden City AL7 4AN

    Received 28 Dec 2023
  22. Decided - GrantedN6/2004/1077/FP

    SINGLE STOREY SIDE EXTENSION; REAR CONSERVATORY; FRONT BAY WINDOW, AND NEW PITCHED ROOF TO EXISTING SINGLE STOREY REAR EXTENSION

    29 Turpins Ride Welwyn AL6 0QU

    Received 12 Jul 2004
  23. Decided - Granted6/2016/2529/TPO

    Fell Silver Birch tree covered by TPO 108 (1986)

    11 Mardley Wood Welwyn AL6 0UY

    Received 28 Nov 2016
  24. Decided - GrantedW6/2013/1765/EM

    Landscaping to front garden

    42 Digswell Rise, Welwyn Garden City, AL8 7PW

    Received 13 Aug 2013

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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