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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
31,725Searchable applications
303Recorded as pending
87%Approval rate · 26,494 approved or refused records
3,473Refused applications

23,021 approved · 3,473 refused · 1,675 withdrawn. Received dates in our records: 29 Apr 1948 to 13 Oct 2026. Most recent record check: 19 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2019/2255/TPO

    Reduce crown 1x Beech tree by 2.5m height and 1.5m in width

    25 Oaklands Rise Welwyn AL6 0RN

    Received 12 Sept 2019
  2. Decided - Granted6/2021/3555/HOUSE

    Erection of a single storey rear extension following demolition of existing conservatory

    13 Woodgate Avenue Northaw Potters Bar EN6 4EW

    Received 30 Dec 2021
  3. Decided - Granted6/2016/1310/EM

    Erection of two storey side extension

    43 Great Dell, Welwyn Garden City, AL8 7HP

    Received 29 Jun 2016
  4. Decided - Withdrawn6/2016/0187/TPO

    Removal of two Norway Maple trees covered by TPO 42

    24 London Road, Welwyn, AL6 9JD

    Received 1 Feb 2016
  5. Decided - Granted6/2021/2972/EM

    Erection of porch to front of property

    100 Ridgeway Welwyn Garden City AL7 2DA

    Received 15 Oct 2021
  6. Decided - Granted6/2020/0505/EM

    Reduce 1 x Ash by 30% Reduce 1 x Maple by 15%

    7 Parkway Close Welwyn Garden City AL8 6HJ

    Received 21 Feb 2020
  7. Decided - Granted6/2015/2292/EM

    Crown thin two Maple trees by 30%

    10 Handside Green, Welwyn Garden City, AL8 6SQ

    Received 9 Nov 2015
  8. Decided6/2023/2513/TC

    Fell 1 x Honey Locust (T3)

    48 Blakemere Road Welwyn Garden City AL8 7PJ

    Received 18 Dec 2023
  9. Decided - Granted6/2022/1195/EM

    Erection of replacement shed

    66 Brockswood Lane, Welwyn Garden City, AL8 7BQ

    Received 24 May 2022
  10. Decided - Granted6/2015/2034/HOUSE

    Erection of single storey side extension to and conversion of part of existing garage to form annex

    9 Northwood, Welwyn Garden City, AL7 2PX

    Received 30 Sept 2015
  11. Appeal Decided - Withdrawn6/2016/1792/FULL

    Erection of 5no dwellings following demolition of two dwellings

    8-10 Wendover Drive Welwyn AL6 9LT

    Received 31 Aug 2016
  12. Decided - Granted6/2016/2349/HOUSE

    Replacement of front and rear windows

    37 Linkfield Welwyn Garden City AL7 4DN

    Received 2 Nov 2016
  13. Decided - Refused6/2017/1277/HOUSE

    Erection of single storey rear extension.

    37 Lodgefield Welwyn Garden City AL7 1SD

    Received 12 Jun 2017
  14. Decided - Granted6/2022/2893/COND

    Submission of details pursuant of Condition 1 (Gosling Sports Park Car Park) Condition 6 (Construction Traffic Management Plan) Condition 7 (Haul Road (fencing, gates and final materials) Condition 9 (Car parking – disabled access) Condition 17 (Phase 2 Disabled Access) on planning permission 6/2021/2125/MAJ

    Hertfordshire Constabulary Stanborough Road Welwyn Garden City AL8 6XF

    Received 22 Dec 2022
  15. Decided - Granted6/2023/1001/EMT

    T1, T2, T3 Leyland Cypress - to reduce height by 3 meters as they are becoming too big, shading the neighbour's property

    19 Turmore Dale Welwyn Garden City AL8 6HT

    Received 11 May 2023
  16. Decided - Granted6/2025/2566/HOUSE

    Erection of a single storey rear extension and installation of ground floor side window

    45 Beechfield Road Welwyn Garden City AL7 3RG

    Received 15 Dec 2025
  17. Decided - Granted6/2022/0716/HOUSE

    Erection of a single storey side extension, part first floor rear extension, installation of subterranean car lift, insertion of windows to facilitate conversion of garage into habitable space, and alterations to roofing material

    8 Briary Wood End Welwyn AL6 0TD

    Received 28 Mar 2022
  18. Decided - Withdrawn6/2017/0034/EM

    Erection of single storey rear extension 4m x 5.89m, installation of 2 skylights and 2 windows. Re-use of existing French doors with side lights and addition of 3 windows to living room.

    4 Scholars Mews Welwyn Garden City AL8 7JQ

    Received 10 Jan 2017
  19. Decided - Granted6/2021/1955/HOUSE

    Erection of two storey rear extension

    60 Lords Wood Welwyn Garden City AL7 2HG

    Received 28 Jun 2021
  20. Decided - Refused6/2021/0562/LAWP

    Certificate of lawfulness for the erection of a single storey rear extension with associated patio and landscape

    20 Bracken Lane Welwyn AL6 0RB

    Received 22 Feb 2021
  21. Decided - Refused6/2020/2041/EM

    External alterations and conversion of garage to facilitate change of use from single dwelling to House in Multiple Occupation (HMO)

    40 Westly Wood Welwyn Garden City AL7 1QL

    Received 13 Aug 2020
  22. Decided6/2026/0327/TC

    Two conifer trees to reduce in height by approx 30% and shape to reduce neighbour overhang.

    29A Turmore Dale Welwyn Garden City AL8 6HT

    Received 23 Feb 2026
  23. Decided - Granted6/2016/2353/COND

    Approval of details reserved by condition 6 (Construction Management and Traffic Management Plan) on planning permission 6/2015/2356/FULL

    Land to the rear of Nos 19-21 Furzen Crescent, Hatfield, AL10 9QN

    Received 8 Nov 2016
  24. Decided - Granted6/2022/2406/HOUSE

    Creation of rear roof terrace, alterations to fenestrations and erection of an outbuilding in rear garden

    10 Brookmans Avenue Hatfield AL9 7QJ

    Received 17 Oct 2022

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

All planning guides

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    Planning permission drawings: how to read plans

    Read planning drawings, floor plans, elevations and sections. Use labelled diagrams, a drawing comparison table and revision checks to understand a proposal.

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    Planning approval rates: how to read council statistics

    Understand planning approval rates with an interactive calculator, worked examples and comparison table. Check sample sizes, outcomes and coverage before comparing.

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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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