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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
22,098Searchable applications
295Recorded as pending
86%Approval rate · 17,934 approved or refused records
2,541Refused applications

15,393 approved · 2,541 refused · 1,139 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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 - Refused6/2021/2526/HOUSE

    Erection of a single storey rear extension, a two storey rear, front and side extension, a roof extension and insertion of a rear box dormer.

    379 St Albans Road West Hatfield AL10 9RU

    Received 31 Aug 2021
  2. Decided - Granted6/2021/2562/EMH

    Single storey rear extension, conversion of garage to habitable use and conversion of roof space to habitable use to include 4 x rear rooflights and gable end window including demolition of existing conservatory

    17 Cypress Avenue Welwyn Garden City AL7 1HN

    Received 2 Sept 2021
  3. Decided - Granted6/2025/0222/LB

    Repairs to crenelation structures and copings on westerly elevation

    Parkside Cottage 56 Mill Lane Welwyn AL6 9ES

    Received 10 Feb 2025
  4. Decided - Refused6/2026/0863/HOUSE

    Erection of a first-floor side extension

    110 Guessens Road Welwyn Garden City AL8 6RS

    Received 15 May 2026
  5. Decided - Granted6/2022/2423/FULL

    Retention of 2no. existing buildings for agricultural use and alterations to their elevations (removal of existing windows, re-cladding of the elevations, and installation of roller shutter doors)

    Beavers Lodge Farm Tylers Causeway Newgate Street Hertford SG13 8QN

    Received 19 Oct 2022
  6. Decided - Granted6/2019/2878/COND

    Submission of details pursuant to condition 9 (parking) on planning application 6/2017/2104/MAJ

    51 Bridge Road East Welwyn Garden City AL7 1JR

    Received 15 Nov 2019
  7. Decided - Granted6/2019/2832/ADV

    Installation of 2x internally illuminated freestanding entrance signs, 1x internally illuminated individual letter fascia sign fixed on runners; and 1x externally illuminated hanging sign fixed to existing post

    Nolita, Great North Road, Brookmans Park, Hatfield, AL9 6NA

    Received 8 Nov 2019
  8. Decided - Granted6/2021/1192/LAWP

    Dormer roof to rear elevation, velux rooflights to front, and internal alterations

    5 Great North Road Hatfield AL9 6LB

    Received 13 Apr 2021
  9. Decided - Granted6/2025/1674/HOUSE

    Erection of additional storey and remodelling of existing dwelling

    1 Great North Road Brookmans Park AL9 6LB

    Received 4 Aug 2025
  10. Decided - Granted6/2020/2219/VAR

    Variation of condition 8 (approved plans) on planning permission 6/2020/0439/VAR

    10 Woodland Way Welwyn AL6 0RZ

    Received 1 Sept 2020
  11. Decided - Refused6/2023/2499/FULL

    Retention of covered gazebo area to pub garden with proposed changes to the external appearance

    The Great Northern 54 Great North Road Hatfield AL9 5AE

    Received 14 Dec 2023
  12. Decided - Granted6/2018/1318/EM

    Reduce 1 x Beech tree to remove 3 low limbs & reduce back selected higher branches by 2m

    15 Brockswood Lane Welwyn Garden City AL8 7BA

    Received 18 May 2018
  13. Decided - Granted6/2020/2931/EM

    Erection of garden shed

    36 Knightsfield Welwyn Garden City AL8 7HA

    Received 9 Nov 2020
  14. Decided - Granted6/2018/2391/HOUSE

    Erection of single storey side and rear extension and replacement chimney

    13 Handside Close Welwyn Garden City AL8 6SR

    Received 18 Sept 2018
  15. Decided - Granted6/2023/2010/FULL

    Erection of 1no. agricultural building

    Beavers Lodge Farm Tylers Causeway Newgate Street Hertford SG13 8QN

    Received 29 Sept 2023
  16. Decided - Granted6/2022/1586/EM

    Relocation of boiler to loft space and introduction of flue through rear face of the roof.

    90 Handside Lane Welwyn Garden City AL8 6SN

    Received 6 Jul 2022
  17. Decided6/2024/0747/TC

    Reduce Crab Apple tree back to previous pruning points (around 0.5m) to retain tree to suitable size for garden

    90 Handside Lane Welwyn Garden City AL8 6SN

    Received 23 Apr 2024
  18. Decided - Granted6/2022/0592/EM

    Demolition of the existing four bedroom detached bungalow with attached garage and associated driveway and erection of new two storey four-bedroom detached dwelling with attached garage and associated driveway

    10 Mannicotts, Welwyn Garden City, AL8 7BW

    Received 14 Mar 2022
  19. Decided - Refused6/2024/1548/HOUSE

    Erection of part single, part two storey rear extension

    12 Sycamore Avenue Hatfield AL10 8LZ

    Received 14 Aug 2024
  20. Decided - Granted6/2016/1529/LB

    Conversion of barn to one residential unit (amendment to planning permission S6/2013/0957/LB)

    Cucumber Barn, Cucumber Lane, Essendon, Hatfield, AL9 6JB

    Received 25 Jul 2016
  21. Decided - Withdrawn6/2016/2099/COND

    Approval of details reserved by condition 9 (Written Scheme of investigation) and condition 10 (Building occupation) on planning permission N6/2011/0359/OP

    Queen Elizabeth II Hospital, Howlands, Welwyn Garden City, AL7 4HQ

    Received 4 Oct 2016
  22. Decided - Granted6/2019/2962/HOUSE

    Erection of front porch extension, single storey rear extension and raising of side projection’s roof

    39 Bushey Ley Welwyn Garden City AL7 3HB

    Received 26 Nov 2019
  23. Decided - Granted6/2023/1821/EMT

    1 x Robinia to reduce overhanging branches by approximately 3m (back to previous pruning points). 1 x Ash to reduce overhanging branches by 1.5m.

    The Barnhouse Digswell Lane Welwyn AL6 0SP

    Received 31 Aug 2023
  24. Decided - Granted6/2025/1632/EMT

    Fell 1 x Silver Birch

    66 Sweet Briar Welwyn Garden City AL7 3DY

    Received 30 Jul 2025

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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