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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
21,115Searchable applications
298Recorded as pending
86%Approval rate · 17,050 approved or refused records
2,410Refused applications

14,640 approved · 2,410 refused · 1,082 withdrawn. Received dates in our records: 5 Jan 2005 to 30 Sept 2026. Most recent record check: 13 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 Counts reflect the last collected status; some records may be out of date.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 - Refused6/2023/0146/HOUSE

    Erection of two storey side extension and single storey rear extension

    18 Camfield Welwyn Garden City AL7 4ED

    Received 20 Jan 2023
  2. Decided - Withdrawn6/2021/2059/EMT

    Fell 1 x Sycamore tree

    19 Elm Gardens Welwyn Garden City AL8 6RX

    Received 8 Jul 2021
  3. Decided - Granted6/2024/2435/HOUSE

    Replacement of four rooflights with three dormers in rear roof pitch

    4 Whetstone Court Whetstone Close Welwyn AL6 0QY

    Received 30 Dec 2024
  4. Decided6/2017/2725/FULL

    Change of use of part of first floor stables building to residential flat for use by visiting family members and relatives

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

    Received 23 Nov 2017
  5. Decided6/2020/0158/TC

    Reduce 1x Plum tree crown by 30%

    2 Parkfields Welwyn Garden City AL8 6ED

    Received 22 Jan 2020
  6. Decided - Refused6/2020/1837/FULL

    Erection of new detached dwellinghouse to the rear garden.

    54 Bridge Road Welwyn Garden City AL8 6UR

    Received 27 Jul 2020
  7. Decided - Refused6/2023/1917/HOUSE

    Erection of a front extension to existing dwelling

    109 Woods Avenue Hatfield AL10 8QQ

    Received 15 Sept 2023
  8. Decided - Granted6/2024/1237/FULL

    Continuation of use of land for parking of caravans awaiting repair, servicing and pre-delivery checks for a temporary period of 5 years

    G T Towing Great North Road Hatfield AL9 5SD

    Received 2 Jul 2024
  9. Decided - Withdrawn6/2023/2367/HOUSE

    Erection of boundary wall to front of property

    83 Oakleigh Stables At Codicote Road Welwyn AL6 9TY

    Received 23 Nov 2023
  10. Decided - Granted6/2021/1763/PN8

    Prior approval for the erection of a single storey rear extension measuring 4m in depth, 2.91m in height, 2.91m to the eaves

    27 Wheatley Road Welwyn Garden City AL7 3LL

    Received 4 Jun 2021
  11. Decided - Refused6/2018/1460/EM

    Erection of first floor rear extension and front porch including alterations to openings

    12 Warren Dale Welwyn Garden City AL8 7HN

    Received 1 Jun 2018
  12. Decided - Granted6/2018/0016/ADV

    Installation of 2 x non-illuminated fascia signs, 3 x non-illuminated hoarding signs and 4 x non-illuminated printed vinyl wrap signs

    Morrison Supermarket 40 Black Fan Road Welwyn Garden City AL7 1RY

    Received 3 Jan 2018
  13. Decided - Withdrawn6/2023/1896/EMT

    1 x Lawson Cypress to dismantle in sections to ground level as tree is starting to lift driveway paving and leaving debris on public footpath. Phone line running through tree

    47 Elm Gardens Welwyn Garden City AL8 6RX

    Received 13 Sept 2023
  14. Decided - Granted6/2021/1781/COND

    Submission of details pursuant to condition 1 (20swg 76mm (3”) Perforated Lath Galvanised steel shutter from indupart or similar), on planning permission 6/2021/0689/FULL

    41-43 Town Centre Hatfield AL10 0JJ

    Received 8 Jun 2021
  15. Decided - Granted6/2021/1227/PN8

    Prior approval for the erection of a single storey rear extension measuring 7.90m. in depth, 3.80m. in heights, 2.40m. to the eaves.

    106 Harmer Green Lane Digswell Welwyn AL6 0ET

    Received 15 Apr 2021
  16. Appeal Decided - Dismissed6/2024/0958/HOUSE

    Erection of single storey side, part single, part double storey rear extension and replacement garage. Insertion of rear rooflights. Replacement front door. Landscape and boundary treatment

    16 Guessens Road Welwyn Garden City AL8 6QR

    Received 22 May 2024
  17. Decided - Granted6/2024/1780/HOUSE

    Erection of a single storey rear/side extension following the demolition of outbuilding, installation of rear facing dormer and rooflight to facilitate loft conversion, timber gate and glazed canopy to side access, replacement of window for door

    196 Handside Lane Welwyn Garden City AL8 6TD

    Received 16 Sept 2024
  18. Decided6/2025/2252/TC

    T1 Apple Reduce to previous pruning points, approx 1.5 metres. T2 Malus baccata to thin and reduce by 0.5 metres. T3 Acer to reduce and thin to previous pruning cuts.

    36 Longcroft Lane Welwyn Garden City AL8 6EF

    Received 23 Oct 2025
  19. Decided - Granted6/2018/1834/COND

    Submission of details pursuant to condition 1 on planning permission 6/2018/0299/HOUSE

    24 Parkfields Welwyn Garden City AL8 6ED

    Received 12 Jul 2018
  20. Decided - Granted6/2026/0254/EM

    Replace a 20 foot section of privet hedge with yew hedge. This section of privet is dead with Honey Fungus. We have been advised by a local gardener that we cannot replace with privet as this would also die. We hope that the remaining hedge, which is mainly privet but is mixed, will survive

    25 Digswell Road Welwyn Garden City AL8 7PB

    Received 13 Feb 2026
  21. Decided - Granted6/2020/1402/TPO

    Reduce 1 x Silver Birch by around 4m height & 2m width

    17 Mardley Wood Welwyn AL6 0UY

    Received 17 Jun 2020
  22. Decided - Granted6/2025/1805/HOUSE

    Loft conversion including installation of rooflights to the front and rear roof slope and installation of solid flat roof with roof lanterns to replace existing poly-carbonate roof on the rear extension

    23 Brookside Crescent Cuffley Potters Bar EN6 4QW

    Received 26 Aug 2025
  23. Decided - Refused6/2021/1052/PN3

    Prior approval for existing track and installation of grass strip in the centre of the track

    Land North of Hawkshead Road North Mymms Hatfield Little Heath Potters Bar EN6 1NB

    Received 30 Mar 2021
  24. Decided - Refused6/2020/1399/HOUSE

    Proposed conversion of existing garage into annexe including construction of front dormer to the annexe

    103 Robbery Bottom Lane Welwyn AL6 0UL

    Received 17 Jun 2020

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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