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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
21,490Searchable applications
298Recorded as pending
86%Approval rate · 17,385 approved or refused records
2,468Refused applications

14,917 approved · 2,468 refused · 1,101 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2018/1383/HOUSE

    Erection of single storey rear extension and construction of rear deck/patio, retaining wall and steps

    358 Knightsfield Welwyn Garden City AL8 7NG

    Received 23 May 2018
  2. Decided - Granted6/2025/1868/LAWP

    Certificate of lawfulness for loft conversion with rear dormer and change pitched side roof to gable, erection of a single storey rear extension and front porch

    5 Holme Road Hatfield AL10 9LH

    Received 2 Sept 2025
  3. Decided - Granted6/2021/2810/EM

    Erection of garage on existing neighbouring parking space

    9 Linces Way Welwyn Garden City AL7 3JN

    Received 29 Sept 2021
  4. Decided6/2021/3450/TC

    Reduce ash tree back to old pruning points

    4 Moorend Welwyn Garden City AL7 4QL

    Received 9 Dec 2021
  5. Decided - Refused6/2019/2825/PN8

    Prior approval for the erection of single storey rear extension measuring 8m in depth, 3m in height and 3m to the eaves

    45 Hill Rise Cuffley Potters Bar EN6 4EH

    Received 6 Nov 2019
  6. Decided - Granted6/2018/1641/EM

    Reduce 1 x Oak Tree by 3m

    100 Ridgeway Welwyn Garden City AL7 2DA

    Received 22 Jun 2018
  7. Decided - Granted6/2023/0470/HOUSE

    Erection of a small enclosed front porch

    4 Elmoor Avenue Welwyn AL6 9PA

    Received 1 Mar 2023
  8. Decided - Granted6/2020/0145/HOUSE

    Erection of a single storey rear extension and detached annex, ancillary to the main dwelling, following demolition of existing detached garage and shed

    143 Hollybush Lane Welwyn Garden City AL7 4JT

    Received 21 Jan 2020
  9. Decided - Withdrawn6/2021/3006/EMT

    Fell the ash tree on the North side of the rear garden. Ash trees in Sherrardspark wood adjacent to our garden have been suffering from ash die-back for some time and our ash tree is now showing the same symptoms.

    17 Reddings, Welwyn Garden City, AL8 7LA

    Received 19 Oct 2021
  10. Appeal Decided - Dismissed6/2018/2986/EM

    Retention of front door and double garage doors

    56 Valley Road Welwyn Garden City AL8 7DN

    Received 19 Nov 2018
  11. Decided - Granted6/2022/0795/EM

    Replacement front door

    256 Heronswood Road Welwyn Garden City AL7 3JQ

    Received 31 Mar 2022
  12. Decided - Granted6/2022/2272/COND

    Submission of details pursuant to condition 3 (Landscape and Ecological Management Plan), 4 (Landscaping Scheme), 5 (Landscape Management Plan), 6 (Sound Insulation), 7 (Materials), 8 (Refuse and Recycling), 9 (Cycle Storage), 10 (Energy & Sustainability), 11 (EV Charging Facilities), 12 (Renewable energy), 13 (Acccessible and adaptable homes) and 14 (fire hydrant)

    Derelict Garages off Hollyfield Hatfield AL10 8LW

    Received 30 Sept 2022
  13. Decided - Granted6/2019/0860/EM

    Erection of detached garden room

    175 Parkway Welwyn Garden City AL8 6JA

    Received 9 Apr 2019
  14. Decided - Refused6/2018/2774/HOUSE

    Erection of single storey front extension and porch, part single storey first floor, part two storey side extension

    14 Pleasant Rise Hatfield AL9 5DS

    Received 29 Oct 2018
  15. Decided - Granted6/2018/2429/COND

    Submission of details pursuant to condition 1 (boundary screening scheme) on planning permission 6/2018/1753/HOUSE

    9 Hillside Way Welwyn AL6 0TY

    Received 21 Sept 2018
  16. Decided - Granted6/2019/0153/HOUSE

    Erection of single storey side and rear extension

    86 Campion Road Hatfield AL10 9FT

    Received 25 Jan 2019
  17. Under Consideration6/2026/1533/ADV

    Remove old signage & replace with new

    37-39 Bradmore Green Brookmans Park AL9 7QR

    Received 2 Sept 2026
  18. Under Consideration6/2026/1498/HOUSE

    Erection of part single part two-storey rear extension

    6 West View Hatfield AL10 0PJ

    Received 25 Aug 2026
  19. Decided - Granted6/2019/2838/FULL

    Erection of three dwellings and formation of new access following demolition of existing dwelling and buildings

    Primrose Cottage, Kentish Lane, Brookmans Park, Hatfield, AL9 6EE

    Received 11 Nov 2019
  20. Decided - Granted6/2020/2319/VAR

    Variation of condition 5 (approved plans) on planning permission 6/2016/2476/HOUSE

    18 Oaklands Rise Welwyn AL6 0RN

    Received 10 Sept 2020
  21. Decided - Refused6/2021/1391/HOUSE

    Erection of first floor rear extension over existing rear extension

    68 Peartree Lane Welwyn Garden City AL7 3UH

    Received 30 Apr 2021
  22. Decided - Granted6/2021/0164/FULL

    Erection of an extension to the QMHA building and associated landscape works.

    Royal Veterinary College Hawkshead Lane Hatfield AL9 7TA

    Received 20 Jan 2021
  23. Decided - Granted6/2020/2936/HOUSE

    Single storey rear extension

    64 Handside Lane Welwyn Garden City AL8 6SJ

    Received 6 Nov 2020
  24. Decided - Granted6/2020/1771/EMT

    4 x Leyland Cypress to fell to fence height. 1 x Lawson Cypress to fell to fence height. 1 x Leyland Cypress to reduce by 3m and trim. 1 x Ash to fell to ground level

    25 Bedwell Close Welwyn Garden City AL7 3XH

    Received 20 Jul 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

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    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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