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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
40,295Searchable applications
322Recorded as pending
86%Approval rate · 33,786 approved or refused records
4,816Refused applications

28,970 approved · 4,816 refused · 2,217 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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 - GrantedS6/2008/2445/FP

    ERECTION OF SINGLE STOREY REAR EXTENSION AND FORMATION OF TERRACE, FOLLOWING DEMOLITION OF EXISTING CONSERVATORY AND EXTENSION

    HARMONY, HAWKSHEAD ROAD, LITTLE HEATH, POTTERS BAR, HERTFORDSHIRE, EN6 1LU

    Received 16 Dec 2008
  2. Decided - Granted6/2020/0425/HOUSE

    Erection of a single storey front extension

    35 Veritys Hatfield AL10 8HH

    Received 14 Feb 2020
  3. Decided - Granted6/2018/1728/HOUSE

    Erection of single storey rear extension following demolition of existing

    26 Chelveston Welwyn Garden City AL7 2PW

    Received 29 Jun 2018
  4. Decided - Granted6/2021/2127/TPO

    T1 - oak - crown reduce 1-2m and deadwood T2 - oak fell to ground level T3 - beech - crown reduce 4-5m T4 - beech - crown reduce 4-5m

    12 Mardley Hill Welwyn AL6 0TN

    Received 14 Jul 2021
  5. Decided - Granted6/2016/1642/TPO

    Removal of two Laurel trees - Conservation Area

    13 Brockswood Lane, Welwyn Garden City, AL8 7BA

    Received 11 Aug 2016
  6. Decided - Granted6/2023/2469/LAWP

    Certificate of lawfulness for the erection of two detached single storey outbuildings, comprising of a home office and garden room and a summer house

    124 Harmer Green Lane Digswell Welwyn Hertfordshire AL6 0ET

    Received 8 Dec 2023
  7. Decided - GrantedW6/2007/0875/EM

    ERECTION OF SINGLE STOREY REAR EXTENSION.

    38 Pentley Park, Welwyn Garden City, AL8 7SB

    Received 11 Jun 2007
  8. Decided - RefusedN6/2015/1002/HH

    Prior approval for a single storey rear extension

    20 Attimore Close, Welwyn Garden City, AL8 6LN

    Received 13 May 2015
  9. Decided - Granted6/2019/0620/EM

    Fell 4 x Apple trees, 6 x Leylandii tree and 5 x unknown species trees

    9 Little Ganett Welwyn Garden City AL7 3DG

    Received 15 Mar 2019
  10. Decided - Granted6/2025/1951/EMT

    T2 - Ash to remove lower cluster of branches back to the boundary line, reduce upper section by around 2.5m - overhang is becoming excessive and a nuisance

    24 Sheepcote Welwyn Garden City AL7 4QD

    Received 11 Sept 2025
  11. Decided - GrantedN6/2015/1145/FP

    Extension of outbuilding and connection between outbuilding and rear elevation; incorporating new window and bi-folding doors. Replace roof above existing garage incorporating new sky light.

    351 Knightsfield Welwyn Garden City AL8 7NB

    Received 1 Jun 2015
  12. Decided - Granted6/2026/0391/FULL

    Change of use of existing industrial unit (Use Class B2) to Use Classes E(g)(iii) (Industrial Processes), B2 (General Industrial) and B8 (Storage and Distribution) together with refurbishment works including relocation of main entrance, installation of an additional shutter door, installation of plant and PV panels, recladding, reconfiguration of service yard and landscaping

    Unit J City Park Welwyn Garden City AL7 1LT

    Received 3 Mar 2026
  13. Decided - Refused6/2023/1502/HOUSE

    Erection of a double storey side and part single storey rear extension with front porch

    79 Sloansway Welwyn Garden City AL7 1NA

    Received 18 Jul 2023
  14. Decided - Granted6/2019/1924/LB

    Extension and alterations to convert the building into a single dwelling with associated landscaping, hard surfacing and alterations to a section of the existing wall to create a new gated opening for pedestrian access

    The Wood Barn The Estate Yard North Mymms Park North Mymms Hatfield AL9 7TR

    Received 6 Aug 2019
  15. Decided - Granted6/2022/2039/COND

    Submission of details pursuant of Condition 1 (Construction/Repair Method Statement), Condition 2 (Window and Door Details) and Condition 3 (Materials) on planning permission 6/2020/0930/VAR

    Northaw House Coopers Lane Northaw Potters Bar EN6 4NG

    Received 1 Sept 2022
  16. Decided - WithdrawnN6/2008/0052/FP

    ERECTION OF A NEW DETACHED DWELLING

    Land rear of 26 Mardley Avenue Welwyn AL6 0TZ

    Received 10 Jan 2008
  17. Decided - Granted6/2022/2017/LAWE

    Certificate of lawfulness for use of an outbuilding as a self-contained residential studio (C3)

    Rear of 38 Crawford Road Hatfield AL10 0PE

    Received 31 Aug 2022
  18. Decided - Granted6/2019/1547/EM

    Removal of Privet hedge section

    47 Woodhall Lane Welwyn Garden City AL7 3TB

    Received 25 Jun 2019
  19. Decided - RefusedN6/2007/0930/FP

    ERECTION OF 2 STOREY SIDE EXTENSION & PART GARAGE REMOVAL

    8 Hunters Way Welwyn Garden City AL7 4NN

    Received 19 Jun 2007
  20. Decided - Refused6/2018/1596/TPO

    Fell 1 x Corsican Pine tree (T2) covered by TPO 805 (2018)

    16 Wendover Drive (Formerly number 10) Welwyn AL6 9LT

    Received 13 Jun 2018
  21. Decided - Granted6/2019/2895/EM

    Change of use of front amenity land to residential, to facilitate expansion of existing driveway by 1m and installation of glass panels to existing flat roof

    1 Brockett Close Welwyn Garden City AL8 7BN

    Received 15 Nov 2019
  22. Decided - Granted6/2023/2351/HOUSE

    Retention of a single storey link extension and conversion of garage to habitable accommodation together with alterations to fenestration.

    15 Ramsey Close Brookmans Park AL9 6NP

    Received 22 Nov 2023
  23. Decided - Split6/2018/1345/COND

    Submission of details pursuant to condition 1 (material samples), 3 (tree works) & 4 (landscape works) on planning permission 6/2018/0337/FULL

    7 Lanercost Close Welwyn AL6 0RW

    Received 21 May 2018
  24. Decided - Granted6/2017/2537/HOUSE

    Erection of a two storey side and front, part-single, part-two storey rear extension, installation of 1 rear dormer window, 5 rooflights and a juliet balcony to facilitate loft conversion following demolition of conservatory, side porch and garage

    150 Tolmers Road Cuffley Potters Bar EN6 4JR

    Received 1 Nov 2017

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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