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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
19,475Searchable applications
298Recorded as pending
86%Approval rate · 15,738 approved or refused records
2,191Refused applications

13,547 approved · 2,191 refused · 985 withdrawn. Received dates in our records: 5 Jan 2005 to 30 Sept 2026. Most recent record check: 12 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2024/0432/PN15

    Prior approval for proposed NTQ (Notice to Quit) telecommunications installation replacement; proposed EE/H3G Valmont 20m High Phase 7 Mk2 streetworks pole and associated ancillary works

    King George V Car Park Beehive Lane Welwyn Garden City AL7 4BP

    Received 6 Mar 2024
  2. Decided - Granted6/2025/1208/HOUSE

    Erection of a single-storey garden room

    13 Welwyn Hall Gardens Welwyn AL6 9LF

    Received 16 Jun 2025
  3. Decided - Granted6/2026/0497/HOUSE

    Installation of conservatory at rear

    7A Mill Green Road Welwyn Garden City AL7 3UU

    Received 17 Mar 2026
  4. Decided - Granted6/2018/0133/EM

    Erection of a part single, part double storey rear extension to replace existing conservatory and part conversion of existing garage.

    49 Elmwood Welwyn Garden City AL8 6LD

    Received 16 Jan 2018
  5. Decided6/2019/2784/TC

    Reduce 2x Apple tree crowns (T1 and T4) by 33% Reduce 1x Pear tree crown (T2) by 33% Reduce 1x Cherry tree crown (T3) by 33% Reduce 1x Plum tree crown (T5) by 33%

    80 Handside Lane, Welwyn Garden City AL8 6SJ

    Received 4 Nov 2019
  6. Decided - Granted6/2023/1237/LAWP

    Certificate of lawfulness for the erection of a porch

    9 South Drive Cuffley Potters Bar EN6 4HP

    Received 12 Jun 2023
  7. Decided6/2024/0974/TC

    15ft (4.5m) crown reduction to 11 conifer trees at rear of garden.

    36 Fordwich Road Welwyn Garden City AL8 6EY

    Received 23 May 2024
  8. Decided - Granted6/2021/2464/LAWP

    Certificate of lawfulness for the creation of two dormer windows

    28 Great North Road Welwyn Garden City AL8 7TJ

    Received 23 Aug 2021
  9. Call In/Major Objection6/2026/1093/FULL

    Erection of 2 no. detached houses with integral garages

    35 Carbone Hill Northaw Potters Bar EN6 4PN

    Received 24 Jun 2026
  10. Decided6/2020/2226/TC

    Sycamore - fell

    13 Pentley Park Welwyn Garden City AL8 7RT

    Received 1 Sept 2020
  11. Decided - Withdrawn6/2023/0187/EM

    Erection of a double storey side extension and single rear extension

    18 Camfield Welwyn Garden City AL7 4ED

    Received 25 Jan 2023
  12. Decided - Granted6/2019/2482/HOUSE

    Erection of a single storey, part two storey side and rear extension and alterations to fenestration

    2 Springfields Welwyn Garden City AL8 6XP

    Received 7 Oct 2019
  13. Decided - Granted6/2026/0374/HOUSE

    Retention of an outbuilding

    12 Hill Rise Cuffley Potters Bar EN6 4EE

    Received 2 Mar 2026
  14. Decided - Withdrawn6/2024/1359/HOUSE

    Erection of first floor/ two storey side and single storey rear extension, and rear outbuilding following the demolition of the existing shed, conversion of the garage to habitable space, roof alterations including change in roof formation and installation of rear facing roof light to facilitate loft conversion, and fenestration, landscaping and patio alterations

    5 Hook Lane Northaw Potters Bar EN6 4DA

    Received 16 Jul 2024
  15. Decided - Refused6/2019/1819/HOUSE

    Erection of carport

    4 Firway Welwyn AL6 0RD

    Received 24 Jul 2019
  16. Decided - Granted6/2021/0584/EMT

    Fell 1x Yew tree

    The Old Manse 40 Barleycroft Road Welwyn Garden City AL8 6JU

    Received 23 Feb 2021
  17. Decided - Granted6/2019/2249/EM

    Reduce 1 x Cherry tree by 2-2.5 m

    8 Handside Green Welwyn Garden City AL8 6SQ

    Received 10 Sept 2019
  18. Decided - Withdrawn6/2022/0058/HOUSE

    External cladding to be installed on the three external walls to the property

    46 High Dells Hatfield AL10 9HU

    Received 11 Jan 2022
  19. Decided - Refused6/2025/0512/HOUSE

    Erection of a single storey front and rear and two storey side extension with internal alterations and refurbishments

    13 Lodge Drive Hatfield AL9 5HL

    Received 19 Mar 2025
  20. Decided - Refused6/2024/0375/HOUSE

    Erection of ground and first floor side extension, ground and first floor rear extension. Formation of basement plant room and storage within the rear extension. Loft conversion with timber sliding sash dormer windows front and rear. Installation of new double glazed timber sliding sash windows, installation of air source heat pump and solar panels

    20 Bell Lane Brookmans Park AL9 7AY

    Received 27 Feb 2024
  21. Decided - Granted6/2025/0600/FULL

    Erection of a new Community Centre and two-storey detached dwelling with associated hard and soft landscaping following the demolition of the existing Community Centre and public toilet block

    Community Building Lockleys Drive Welwyn AL6 9NT

    Received 28 Mar 2025
  22. Decided - Granted6/2024/2065/HOUSE

    Erection of first floor rear extension, enlargement of garage and roof height increase, single storey extension to rear of garage and changes to fenestration.

    20 Rooks Hill Welwyn Garden City AL8 6ET

    Received 25 Oct 2024
  23. Decided - Granted6/2018/2122/HOUSE

    Erection of single storey side, part single part two storey rear extensions following demolition of existing extensions and outbuildings including alterations to openings

    2 Handside Close Welwyn Garden City AL8 6SR

    Received 14 Aug 2018
  24. Decided - Granted6/2019/0863/HOUSE

    Erection of a single storey rear extension and erection of a dormer window to facilitate conversion of loft

    67 Gresley Close Welwyn Garden City AL8 7QA

    Received 10 Apr 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

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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    Published Updated

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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