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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
284Recorded 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29,002 approved · 4,819 refused · 2,219 withdrawn.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: 8 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2019/1980/COND

    Submission of details pursuant to condition 1(acoustic report) on planning permission 6/2019/1247/FULL

    Eisai Europe Limited European Knowledge Centre Mosquito Way Hatfield AL10 9SN

    Received 8 Aug 2019
  2. Decided - Granted6/2022/0917/TPO

    TPO 450 T175 (2010) 1 x Lime to reduce branches by around 2m overhanging play area of no 15 Reeves Court. Tree overhangs child's play area leaving lots of debris and bird droppings on play equipment

    13 Reeves Court Welwyn Hertfordshire AL6 9FU

    Received 19 Apr 2022
  3. Decided - GrantedN6/2009/1160/LB

    CONVERSION OF OUTBUILDINGS INTO TWO, ONE BEDROOM DWELLINGS WITH ADJACENT PARKING

    The Grange 3 Codicote Road Welwyn AL6 9LY

    Received 4 Jun 2009
  4. Decided - Granted6/2025/2373/LAWP

    Certificate of lawfulness for loft conversion and installation of a flat dormer to the existing rear roof slope and rooflights to the front roof slope.

    43 St Albans Road East Hatfield AL10 0EJ

    Received 11 Nov 2025
  5. Decided - Granted6/2026/0483/EMT

    T1 Yew tree to fell. T2 Weeping silver birch tree to lift to 3 metres. T3 Lime trees x 2 to reduce by 2 metres all around. T5 Silver birch tree to crown reduce by 2 metres. T6 Tree of Heaven to crown reduce by 2-3 metres

    338 Knightsfield Welwyn Garden City AL8 7NQ

    Received 16 Mar 2026
  6. Decided - Granted6/2024/2364/HOUSE

    Erection of a part single, part double storey rear extension to replace existing rear extension, single storey side/rear extension and conversion of existing outbuilding, raising roof and new parapet to existing garage, new first floor windows within the side elevation, new roof tiles and installation of rear dormer window to facilitate a loft conversion

    38 Barleycroft Road Welwyn Garden City AL8 6JU

    Received 10 Dec 2024
  7. Decided - Granted6/2018/2177/HOUSE

    Erection of a single storey side and rear extension, following demolition of existing conservatory

    55 Thistle Grove Welwyn Garden City AL7 4AD

    Received 22 Aug 2018
  8. Decided - Refused6/2021/3505/HOUSE

    Erection of a single storey rear extension and the removal of chimney stack

    42 Homestead Lane Welwyn Garden City AL7 4NF

    Received 20 Dec 2021
  9. Decided - Granted6/2016/1029/HOUSE

    Erection of single storey rear extension

    403 Howlands, Welwyn Garden City, AL7 4HW

    Received 24 May 2016
  10. Decided - Granted6/2021/1967/LAWP

    Certificate of lawfulness for a loft conversion followed by changing the roof from hip to gable, and the erection of a rear dormer and front roof lights.

    20 Astwick Avenue Hatfield AL10 9LA

    Received 29 Jun 2021
  11. Decided - Refused6/2017/0997/FULL

    Erection of 3 dwellinghouses and detached garages following demolition of existing dwelling and creation of access road

    50 Wild Hill, Hatfield, AL9 6DS

    Received 9 May 2017
  12. Decided - GrantedN6/2013/1254/TC

    Reduce Silver Birch tree by upto 30%

    37 Blakemere Road, WELWYN GARDEN CITY, AL8 7PQ

    Received 10 Jun 2013
  13. Decided - Withdrawn6/2022/0429/LAWP

    Certificate of lawfulness for front door steps

    2 Lancaster Way Welwyn Hertfordshire AL6 9LD

    Received 23 Feb 2022
  14. Decided6/2023/0667/TC

    1 x Sycamore to dismantle in sections to around 3ft above ground level

    13 Dellcott Close Welwyn Garden City AL8 7BB

    Received 24 Mar 2023
  15. Decided - Granted6/2017/1800/HOUSE

    Erection of single storey rear extension, with conversion of existing loft and installation of rear dormer

    79 Homestead Road Hatfield AL10 0QP

    Received 20 Jun 2017
  16. Decided - GrantedN6/2009/2265/FP

    DEMOLITION OF EXISTING CONSERVATORY AND ERECTION OF SINGLE STOREY REAR EXTENSION AND DETACHED DOUBLE GARAGE

    62 PARKWAY, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 6HH

    Received 12 Oct 2009
  17. Decided - GrantedS6/2004/1223/FP

    ERECTION OF SINGLE STOREY SIDE EXTENSION

    4 Starling Lane Cuffley Potters Bar EN6 4JX

    Received 9 Aug 2004
  18. Decided - GrantedW6/2015/0782/TE

    Fell tree located in front garden

    35 Carve Ley, Welwyn Garden City, AL7 3HL

    Received 10 Mar 2015
  19. Decided - WithdrawnN6/2008/0610/FP

    ERECTION OF A NEW DWELLING

    Land between Plas-y-coed and Littlebury Digswell Lane Welwyn AL6 0SN

    Received 25 Mar 2008
  20. Decided - Granted6/2023/1975/TPO

    Removal of 1 x oak covered by TPO 45

    90 Moffats Lane Hatfield AL9 7RW

    Received 26 Sept 2023
  21. Decided - Granted6/2019/1347/FULL

    Extensions and improvements (398m2) to retained original 1920s Silos, Production Hall, Grain Store and Boiler House to enable the creation of an International Art Centre, including enhanced connectivity and access, and flexible uses within Block 4 and Block 5 (B1/D1/D2 Use Classes).

    Former Shredded Wheat Factory Welwyn Garden City AL8 6UN

    Received 5 Jun 2019
  22. Decided - Granted6/2025/0940/LAWP

    Certificate of lawfulness for erection of a single storey side extension

    21 Bluebridge Road Brookmans Park AL9 7UW

    Received 21 May 2025
  23. Decided - Granted6/2016/0281/HOUSE

    Erection of proposed ground floor rear extension and new W.C. window to rear elevation following demolition of attached outhouse

    38 Sherrardspark Road, Welwyn Garden City, AL8 7LB

    Received 18 Feb 2016
  24. Decided - Granted6/2021/2446/HOUSE

    Erection of a single storey rear extension

    48 Woods Avenue Hatfield AL10 8NA

    Received 23 Aug 2021

Records are ordered by application ID, not submission date. Use search to find a particular address or proposal.

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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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