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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
17,481Searchable applications
298Recorded as pending
86%Approval rate · 14,086 approved or refused records
1,932Refused applications

12,154 approved · 1,932 refused · 885 withdrawn. Received dates in our records: 5 Jan 2005 to 30 Sept 2026. Most recent record check: 11 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2020/1605/EMT

    1 x Lawson Cypress to fell

    14 Little Dell Welwyn Garden City AL8 7HZ

    Received 6 Jul 2020
  2. Decided - Granted6/2025/0884/TPO

    T1 Sweet Chestnut Pollard at approx 10 metres due to decay at the base T2 Sycamore Lift crown to approx 6 metres T3 Oak Remove overhanging branches on 1 side as it is dying back T4 Maple Lift crown to approx 6 metres and remove 1 side branch T5 Cedar Remove 4 lower branches T6 Maple Lift crown to approx 6 metres

    3 Oaklands View Welwyn AL6 0RJ

    Received 14 May 2025
  3. Decided6/2020/2359/TC

    Reduce canopy 1 x Apple tree by 1.2m and thin out water shoots by 30%.

    29 Blakemere Road Welwyn Garden City AL8 7PQ

    Received 15 Sept 2020
  4. Decided - Granted6/2022/1413/EMT

    2 x sycamore to crown lift up to 6m and reduce remaining crown back to previous or closest suitable growth point.

    49 Lodgefield Welwyn Garden City AL7 1SD

    Received 20 Jun 2022
  5. Decided - Refused6/2021/2751/FULL

    Erection of a two storey detached dwelling with associated parking and amenity space involving demolition of existing detached garage.

    1 Chester Close Little Heath Potters Bar EN6 1DT

    Received 22 Sept 2021
  6. Appeal Decided - Dismissed6/2020/3133/HOUSE

    Erection of single storey extension to link with converted garage

    Green Lodge Ponsbourne Park Newgate Street Hertford SG13 8NH

    Received 24 Nov 2020
  7. Decided - Withdrawn6/2023/1623/FULL

    Change of use from existing HMO (class C4) 5-bedroom for 5 persons to HMO (class Sui Generis) 7-bedroom for 8 persons with installation of gate and fence to the rear of the site

    6 Comet Road Hatfield AL10 0SX

    Received 7 Aug 2023
  8. Decided - Granted6/2020/2333/FULL

    Erection of a three bedroom detached dwelling following the demolition of the existing dwelling and detached garage

    1 Link Road Oaklands Welwyn AL6 0SA

    Received 11 Sept 2020
  9. Decided - Granted6/2022/1965/EMT

    1 x Ash (larger tree) To dismantle in sections to ground level using specialist rigging techniques to lower branches to the ground in a safe and manner - This tree has bracket fungus, is rotten in parts, and one heavy branch has already fallen off, endangering the neighbour's property. 1 x Ash to reduce over long limb over neighbouring property by approximately 5m, shorten secondary branches to balance shape.

    57 Longcroft Lane Welwyn Garden City AL8 6EB

    Received 23 Aug 2022
  10. Decided - Granted6/2020/1760/EMH

    Alterations to openings and replacement of windows.

    83 Maple Grove Welwyn Garden City AL7 1NN

    Received 17 Jul 2020
  11. Decided - Refused6/2020/1306/HOUSE

    Erection of single storey front extension

    22 Park Road, Northaw, Potters Bar, EN6 4NU

    Received 8 Jun 2020
  12. Decided - Refused6/2022/0922/FULL

    Conversion and extension to existing single dwelling house to create 4x 1 bed apartments with associated infrastructure

    11 Tolmers Gardens Cuffley Potters Bar Hertfordshire EN6 4JE

    Received 19 Apr 2022
  13. Decided - Granted6/2021/2402/LAWP

    Certificate of lawfulness for conversion of roofspace to habitable use to include a rear dormer and 1 x rooflight

    21 Heronfield Little Heath Potters Bar EN6 1JA

    Received 16 Aug 2021
  14. Decided - Granted6/2019/2641/HOUSE

    Erection of a conservatory

    200 Thistle Grove Welwyn Garden City AL7 4AJ

    Received 21 Oct 2019
  15. Decided - Granted6/2024/1488/EM

    Proposed garden room and shed building to rear of garden

    63 Holwell Road Welwyn Garden City AL7 3RE

    Received 5 Aug 2024
  16. Decided - Granted6/2019/1008/HOUSE

    Erection of single storey side lean-to extension

    10 Green Close Brookmans Park Hatfield AL9 7ST

    Received 25 Apr 2019
  17. Appeal Decided - Dismissed6/2023/1143/HOUSE

    Erection of part single and part two-storey rear extension and alterations to openings

    30 Barleycroft Road Welwyn Garden City AL8 6JU

    Received 31 May 2023
  18. Decided6/2024/0093/TC

    Fell 1 x Sycamore Tree

    2 Fern Grove Welwyn Garden City AL8 7ND

    Received 15 Jan 2024
  19. Decided - Granted6/2019/2471/RM

    Application for the approval of reserved matters (landscaping) for the erection of a single storey equestrian building to form covered manage and riding area on the approved outline planning permission 6/2018/2149/OUTLINE (APP/C1950/W/19/3227024)

    Warrenwood Manor, Hornbeam Lane, Brookmans Park, Hatfield, AL9 6JF

    Received 4 Oct 2019
  20. Decided6/2021/1073/TC

    Crown reduce 1 x Oak Tree by 30%

    10 Attimore Close Welwyn Garden City AL8 6LN

    Received 31 Mar 2021
  21. Appeal Decided - Dismissed6/2024/0181/FULL

    Three storey side extension comprising an enlarged building to support the change of use of the first floor from storage to a new two bedroom flat, new entry and staircase and the creation of two terrace areas, with the relocation of two parking spaces underneath. New roof structure with dormers to create an additional floor accommodating a further new one bedroom flat. Addition of a further dormer to the existing flat at No.19. Conversion of existing entry area to bike store and meter cupboard and the relocation of the refuse storage

    Marlborough Court Green Close Brookmans Park AL9 7ST

    Received 30 Jan 2024
  22. Decided - Granted6/2024/1934/HOUSE

    Erection of two storey rear extension and installation of four side rooflights

    19 Brookside Crescent Cuffley EN6 4QW

    Received 9 Oct 2024
  23. Decided - Refused6/2022/1732/PN8

    Prior approval for single storey rear extension measuring 7 metres deep with a maximum height to 3 metres and 2.8 metres to the eaves

    22 Mymms Drive Brookmans Park AL9 7AF

    Received 22 Jul 2022
  24. Decided - Granted6/2024/0098/HOUSE

    Installation of an Air Source Heat Pump at the rear to replace a Gas Boiler central heating and hot water system

    55 Valley Road Welwyn Garden City AL8 7DH

    Received 15 Jan 2024

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

  • Understanding planning · 13 min read

    Planning application documents: what to read first

    Understand planning application documents, officer reports and decision notices. Use a reading checklist, document table and worked example to inspect a case.

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  • Understanding planning · 13 min read

    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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  • Property research · 13 min read

    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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