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England · Local authority

Welwyn Hatfield Borough Council
Planning applications.

Explore collected planning applications and decisions for Welwyn Hatfield Borough Council. Search an address, application reference or proposal to find a record.

Collected application statistics

Collected records · All available dates
24,781Searchable applications
313Recorded as pending
86%Approval rate · 20,327 approved or refused records
2,804Refused applications

17,523 approved · 2,804 refused · 1,308 withdrawn. Received dates in our records: 5 Jan 2005 to 2 Oct 2026. Most recent record check: 15 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 Counts reflect the last collected status; some records may be out of date.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. Decided - Granted6/2024/1779/HOUSE

    Erection of single-storey rear extension following the demolition of existing conservatory, alterations to roof, openings and patio

    13 Woodgate Avenue Northaw Potters Bar EN6 4EW

    Received 16 Sept 2024
  2. Decided - Granted6/2023/0870/PN19

    Prior approval for the erection of an agricultural building measuring 18.3m in length, 9.1m in width, 2m to the eaves and 3m to the ridge and access track

    Land adjacent to Holwell Court Cottage Holwell Court Hatfield AL9 5RL

    Received 25 Apr 2023
  3. Decided - Granted6/2017/0870/COND

    Submission of details pursuant to condition 2 (approval of external materials) on planning permission 6/2016/0691/HOUSE

    99 Handside Lane Welwyn Garden City AL8 6SP

    Received 24 Apr 2017
  4. Decided - Granted6/2017/0800/COND

    Submission of details pursuant to condition 3 (materials) 4 (hard & soft landscaping) 5 (planting plan) 6 & 7 (landscaping) 9 (fencing) and 10 (construction plan) on planning permission N6/2014/2255/FP, dated 05/03/2015

    Land at 6 Briary Wood End and to rear of 10 Heathbrow Road Welwyn AL6 0TD

    Received 19 Apr 2017
  5. Decided - Granted6/2018/2476/HOUSE

    Installation of two front dormers

    13 Theobalds Road Cuffley Potters Bar EN6 4HQ

    Received 26 Sept 2018
  6. Decided - Granted6/2017/1335/HOUSE

    Erection of single storey rear extension and attached single storey garage following demolition of existing shed

    146 Salisbury Road Welwyn Garden City AL7 3SA

    Received 20 Jun 2017
  7. Decided - Granted6/2018/2251/EM

    Reduce 3x Black Poplar Trees by 4 -5 meters and re-shape crown

    Homestead Court Hotel Homestead Lane Welwyn Garden City AL7 4LX

    Received 3 Sept 2018
  8. Decided - Withdrawn6/2025/2621/FULL

    Erection of new dwelling following the demolition of existing dwelling

    57 Tolmers Road Cuffley Potters Bar EN6 4JG

    Received 24 Dec 2025
  9. Decided6/2024/2181/TC

    Reduce 1 x Robinia by 2.5m in height and 1.5m in width

    49 Knightsfield Welwyn Garden City AL8 7JE

    Received 12 Nov 2024
  10. Decided - Granted6/2025/0202/COND

    Submission of details pursuant of condition 7 (flooding) and 8 (surface water drainage) on planning permission 6/2024/2017/MAJ

    Land at Oakleigh Farm Codicote Road Welwyn AL6 9TY

    Received 6 Feb 2025
  11. Decided - Granted6/2020/0772/EMT

    Reduce 1 x Blue Cedar Tree [T1] by 30% Reduce 1 x Copper Beech Tree [T2] by 30%

    1 Stonemead, Welwyn Garden City, AL8 7LX

    Received 24 Mar 2020
  12. Decided - Granted6/2018/3189/HOUSE

    Erection of single storey ancillary outbuilding following demolition of existing (part-retrospective)

    Bell Bar Pet Farm, Bell Lane, Brookmans Park, Hatfield, AL9 7AY

    Received 14 Dec 2018
  13. Decided - Granted6/2025/0674/COND

    Submission of details pursuant of condition 6 (Ecological Enhancements) on planning permission 6/2024/0551/FULL

    Land adjacent to Bell Lane Bell Bar The Brookmans Park Estate AL9 7AY

    Received 7 Apr 2025
  14. Decided - Granted6/2021/1937/LB

    Erection of conservatory, alterations to fenestration, internal alterations, installation of roof lights and rear dormer (retrospective).

    Home Farm 6 Whitehill Welwyn AL6 9AF

    Received 25 Jun 2021
  15. Decided - Granted6/2021/0960/EMT

    Fell 1 x Birch tree

    136 Longcroft Lane Welwyn Garden City, AL8 6EN

    Received 24 Mar 2021
  16. Decided - Granted6/2024/0602/HOUSE

    Installation of air source heat unit

    7 Elm Drive Hatfield AL10 8NR

    Received 27 Mar 2024
  17. Decided - Granted6/2024/0618/HOUSE

    Erection of single storey rear extension

    540 Howlands Welwyn Garden City AL7 4ET

    Received 2 Apr 2024
  18. Decided - Granted6/2016/0322/HOUSE

    Erection of a first floor rear extension together with roof alterations

    48A Harmer Green Lane Digswell Welwyn AL6 0AT

    Received 25 Feb 2016
  19. Decided6/2024/0262/TC

    T6, T7 & T8 Beech trees to trim back branches creating an air-gap of 0.5m around telephone cables. G1 1 Beech tree to remove branches overhang and interfering with the roof by trimming back to the line of the guttering. T2 Alder tree to trim the tree back to previous pruning points but not beyond (estimated to be 1.5m).

    8 The Green Welwyn AL6 9EA

    Received 7 Feb 2024
  20. Decided - Granted6/2024/0806/LAWP

    Certificate of lawfulness for the erection of a conservatory

    2 Briars Close Hatfield AL10 8DQ

    Received 30 Apr 2024
  21. Decided6/2020/1451/TC

    Fell 1 x dead Cherry Tree

    115 Handside Lane Welwyn Garden City AL8 6TA

    Received 22 Jun 2020
  22. Decided - Granted6/2019/0834/EM

    Formation of hardstanding

    35 Springfields Welwyn Garden City AL8 6XT

    Received 8 Apr 2019
  23. Decided - Refused6/2022/2043/LAWP

    Certificate of lawfulness for the creation of a new path that will allow clear access to refuse bins

    St Josephs Green Welwyn Garden City AL7 4TT

    Received 2 Sept 2022
  24. Decided - Granted6/2019/0374/HOUSE

    Erection single storey side and rear extension

    4 Selwyn Avenue Hatfield AL10 9NP

    Received 18 Feb 2019

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

View all applications

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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    Planning permission drawings: how to read plans

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  • Property research · 13 min read

    Planning approval rates: how to read council statistics

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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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