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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
34,471Searchable applications
313Recorded as pending
87%Approval rate · 28,751 approved or refused records
3,805Refused applications

24,946 approved · 3,805 refused · 1,792 withdrawn. Received dates in our records: 29 Apr 1948 to 14 Oct 2026. Most recent record check: 21 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 Counts reflect the last collected status; some records may be out of date.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. Decided6/2020/1510/TPO

    Crown thinning of 3 x Oak tree by 20% Covered by a Conservation Area

    7 Reddings Welwyn Garden City AL8 7LA

    Received 17 Jun 2020
  2. Decided - GrantedS6/2013/1473/S73A

    Variation of condition 2 (Approved Plans) from planning permission S6/2013/0672/FP - Erection of two storey side and rear extension and garage to front

    78 Mymms Drive, Brookmans Park, Hatfield, AL9 7AB

    Received 12 Jul 2013
  3. Decided - Granted6/2017/1575/HOUSE

    Conversion of garage to habitable room with installation of window to rear elevation

    6 Errington Close Hatfield AL10 9AU

    Received 19 Jul 2017
  4. Decided - Granted6/2020/1583/HOUSE

    Replace existing decking with upper and lower decking, a glass balustrade and a pergola

    1 Turpins Chase Welwyn AL6 0QZ

    Received 2 Jul 2020
  5. Decided - Granted6/2018/2264/EM

    Removal of conifer hedge to be replaced with smaller shrubs

    38 Beehive Lane Welwyn Garden City AL7 4BP

    Received 4 Sept 2018
  6. Decided - Refused6/2023/0609/HOUSE

    Erection of front porch and installation of block paving to driveway

    4 Aldock Welwyn Garden City AL7 4QF

    Received 20 Mar 2023
  7. Decided - GrantedN6/2015/0475/FP

    Erection of two storey side extension and single storey rear extension, includes alterations to garage roof

    5 Dognell Green, Welwyn Garden City, AL8 7BL

    Received 5 Mar 2015
  8. Decided - Granted6/2019/1357/TPO

    Fell Scots Pine tree TPO 93 T4

    49 Osborne Road Little Heath Potters Bar EN6 1SB

    Received 24 May 2019
  9. Decided - Granted6/2024/0113/VAR

    Variation of condition 1 (materials to match existing) and 3 (approved drawings) on planning permission 6/2023/2014/HOUSE

    21 Homewood Avenue Cuffley Potters Bar EN6 4QG

    Received 16 Jan 2024
  10. Decided - Granted6/2018/2611/FULL

    Erection of new attached dwelling to existing

    265 Knella Road Welwyn Garden City AL7 3NS

    Received 11 Oct 2018
  11. Decided - Granted6/2016/2553/TPO

    Removal of Silver Birch tree - Conservation Area

    30 Beehive Lane Welwyn Garden City AL7 4BQ

    Received 28 Nov 2016
  12. Decided6/2022/2418/TC

    Reduce crown of oak tree in front garden by 30% (or 3 metres)

    11 Woodland Rise Welwyn Garden City AL8 7LJ

    Received 19 Oct 2022
  13. Decided - Refused6/2019/1729/LAWP

    Certificate of lawfulness for the erection of a single storey rear extension

    7 Mimram Walk Welwyn AL6 9EZ

    Received 10 Jul 2019
  14. Decided - Granted6/2019/0031/HOUSE

    Erection of single storey side extension, and raising of existing garage roof, to facilitate partial garage conversion

    7 Hazel Close Digswell Welwyn AL6 0DJ

    Received 7 Jan 2019
  15. Decided - Granted6/2024/1143/TPO

    T1 & T2 - chestnut tree's pollard back to old points. TPO 811 (2018)

    5 Bluebells Welwyn AL6 0XD

    Received 19 Jun 2024
  16. Decided - Granted6/2018/1454/PN11

    Prior approval for change of use from office building B1 to dwelling houses C3

    17-17A Mill Lane Welwyn AL6 9EU

    Received 24 May 2018
  17. Decided - WithdrawnS6/2013/2110/FP

    Erection of two storey rear extension and part single storey rear extension with front porch

    15 Cedar Road Hatfield AL10 8NZ

    Received 3 Oct 2013
  18. Decided - WithdrawnW6/2014/1103/TE

    Reduce Sycamore tree by 33%

    4 Handside Close, Welwyn Garden City, AL8 6SR

    Received 28 May 2014
  19. Decided - Granted6/2021/2069/TPO

    T1 Oak, reduce crown up to 3m/back to previous reduction points T2-T8, Sweet chestnut x4 and Hornbeam x3, cut back to boundary line of 1 Chestnut Walk to height of 6m, reduce above 6m from ground level by 1-2m to reduce overhang, no cuts to be made beyond the boundary line. T9, Hornbeam, cut back to boundary line of 1 Chestnut Walk to height of 6m to clear telephone lines.

    1 Oaklands Rise Welwyn AL6 0RG

    Received 8 Jul 2021
  20. Decided - Refused6/2015/2477/TPO

    Removal of Scotts Pine tree - Conservation Area.

    Located on Boundary of 6 Sherrardspark Road & 5 Pentley Park, Welwyn Garden City, AL8 7JP

    Received 7 Dec 2015
  21. Decided - Granted6/2023/0895/FULL

    Erection of a new dwelling following demolition of existing dwelling

    25 Mymms Drive Brookmans Park AL9 7AE

    Received 26 Apr 2023
  22. Appeal Decided - AllowedS6/2009/1897/FP

    ERECTION OF FRONT PORCH, TWO STOREY SIDE AND REAR EXTENSION, GROUND FLOOR REAR EXTENSION AND REAR CONSERVATORY, AND GROUND FLOOR REAR EXTENSION

    76 College Lane Hatfield AL10 9PQ

    Received 7 Sept 2009
  23. Decided - Granted6/2019/0799/HOUSE

    Erection of a single storey ground floor rear extension following demolition of existing garage

    98 Brookside Crescent Cuffley Potters Bar EN6 4QJ

    Received 2 Apr 2019
  24. Decided - Granted6/2019/0843/TC

    Fell 1 x Norway Spruce

    5 Coneydale Welwyn Garden City AL8 7RX

    Received 8 Apr 2019

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

Start with the address or application reference. Open a record to read the proposal, dates and available documents, then check the official register for the latest plans and consultation details. If nothing appears, check coverage before treating the result as a complete planning history.

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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