England · Local authority

Welwyn Hatfield planning applications

PlanningTrack collects planning applications and decisions from the public planning register of Welwyn Hatfield Borough Council. Search an address, application reference or proposal. Official Welwyn Hatfield website

Collected application statistics

Collected records · All available dates
36,767Searchable applications
335Recorded as pending
86%Approval rate · 30,628 approved or refused records
4,210Refused applications

26,418 approved · 4,210 refused · 1,976 withdrawn. Received dates in our records: 29 Apr 1948 to 20 Oct 2026. Most recent record check: 25 Oct 2026. Counts reflect the last collected status; some records may be out of date.

Local planning information

Council sources checked 14 Sept 2026

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 - Granted6/2023/2133/FULL

    Erection of a 2 bedroom detached bungalow following sub division of plot

    26 Huggins Lane Welham Green Hatfield AL9 7LE

    Received 19 Oct 2023
  2. Decided - Granted6/2022/2796/EM

    Erection of new porch

    14 Beehive Green Welwyn Garden City AL7 4BE

    Received 9 Dec 2022
  3. Decided - Granted6/2019/0279/EM

    Formation of soft and hardstanding driveway

    33 Elmwood Welwyn Garden City AL8 6LD

    Received 7 Feb 2019
  4. Decided - GrantedN6/2009/1322/DS

    DISCHARGE OF CONDITIONS 4 (IMPROVEMENTS TO ACCESS) & 5 (LEVELS) FROM PLANNING PERMISSION N6/2006/0911/FP

    6 LITTLE BURROW, WELWYN GARDEN CITY, HERTFORDSHIRE, AL7 4SW

    Received 19 Jun 2009
  5. Decided - Granted6/2017/1018/HOUSE

    Convert garage to fourth bedroom/studio - retrospective

    30 Archers Ride Welwyn Garden City AL7 4PS

    Received 11 May 2017
  6. Decided - Granted6/2019/2020/HOUSE

    Erection of a single storey rear extension including infill, following demolition of existing conservatory and conversion of existing garage

    36 Bassingburn Walk Welwyn Garden City AL7 3QQ

    Received 13 Aug 2019
  7. Decided - Granted6/2024/0445/HOUSE

    Erection of a two storey rear and side extension with roof alterations including proposed front dormer following the demolition of existing conservatory, conversion of existing garage and the widening of existing driveway to accommodate parking for 3 No. Vehicles

    12 Hillside Way Welwyn AL6 0TY

    Received 8 Mar 2024
  8. Decided - GrantedC6/1987/7058/AD

    Two illuminated signs

    ICI, C & P Division, Bessemer Road, Welwyn Garden City, AL7 1HT

    Received 1 Jan 1987
  9. Decided - Granted6/2022/1109/HOUSE

    Single storey rear extension to facilitate the creation of open plan kitchen/dining area, as well as extension to existing front porch

    16 Nimrod Drive Hatfield AL10 9LS

    Received 13 May 2022
  10. Decided - Granted6/2025/1060/COND

    Submission of details pursuant to condition number 11 (Archaeological Written Scheme of Investigation) on planning permission 6/2023/2552/OUTLINE

    Land off London Road Woolmer Green SG3 6JZ

    Received 5 Jun 2025
  11. Decided - GrantedN6/2015/1484/HOUSE

    Erection of detached timber framed garage and detached timber framed shed in rear garden

    8 Densley Close Welwyn Garden City AL8 7JX

    Received 10 Jul 2015
  12. Decided - Granted6/2020/2800/EMT

    Reduce lateral limbs of 4 x 60ft Sycamore trees by 3-4m

    26 Melbourne Court Welwyn Garden City AL8 6LL

    Received 26 Oct 2020
  13. Decided - Granted6/2017/0511/TPO

    Removal of Poplar tree in rear garden - Conservation Area

    141 Parkway Welwyn Garden City AL8 6JB

    Received 7 Mar 2017
  14. Decided - Refused6/2018/0656/LAWP

    Certificate of lawfulness for the erection of single storey rear extension

    27 Station Road Digswell Welwyn AL6 0DX

    Received 8 Mar 2018
  15. Decided - Granted6/2020/2759/EMT

    1 x Field Maple - fell 1 x Honey Locust - reduce height by 3m & width by 1.5m

    22 High Oaks Road Welwyn Garden City AL8 7BH

    Received 22 Oct 2020
  16. Decided - Refused6/2022/0572/FULL

    Change of use of land to residential (Use Class C3) to form part of existing residential garden, and erection of hedgerow

    36 Sheepcote Welwyn Garden City AL7 4QD

    Received 11 Mar 2022
  17. Decided - Refused6/2017/2207/COND

    Submission of details pursuant to condition 1 (mechanical heat recovery ventilation/cooling system) of application 6/2017/1519/PN11

    Inspira House Martinfield Welwyn Garden City AL7 1GW

    Received 28 Sept 2017
  18. Decided - GrantedN6/2013/1522/FP

    Erection of single storey rear extension and loft conversion

    5 Heather Road, Welwyn Garden City, AL8 6XX

    Received 12 Jul 2013
  19. Decided6/2022/2407/TC

    1 x Oak - to reduce by 2m in height and 3m in width, remove major deadwood and reduce the branches overhanging neighbouring roof, around chimney and aerial, by 3.5 m in width Line of Leyland Cypress - to reduce to approximately 3.5m above ground level - This tree is in close proximity to the property and driveway.

    18 Mandeville Rise Welwyn Garden City AL8 7JU

    Received 17 Oct 2022
  20. Decided - Refused6/2021/1233/HOUSE

    Erection of two single storey side extensions and rear porch

    2 Elmwood Welwyn Garden City AL8 6LE

    Received 15 Apr 2021
  21. Decided - GrantedS6/2015/1166/LUP

    Certificate of lawfulness for proposed single storey rear extension with flat roof

    49 Hillcrest Hatfield AL10 8HF

    Received 2 Jun 2015
  22. Decided - GrantedN6/2013/0255/AD

    Installation of 1 non illuminated fascia sign and 1 non illuminated hanging sign

    Boots Opticians, 38/40 Howardsgate, WELWYN GARDEN CITY, AL8 6PU

    Received 1 Feb 2013
  23. Decided - GrantedS6/2007/1938/FP

    ERECTION OF TWO SINGLE STOREY SIDE EXTENSIONS, TWO STOREY REAR EXTENSION, REPLACEMENT ROOF TO INCLUDE AN INCREASE IN RIDGE HEIGHT AND SIX DORMER WINDOWS, TWO REPLACEMENT CHIMNEYS AND ERECTION OF PORTICO TO FRONT ELEVATION FOLLOWING REMOVAL OF EXISTING PORCH, GARAGE AND COURTYARD OUT BUILDINGS

    EDGE HOUSE, KENTISH LANE, BROOKMANS PARK, HATFIELD, HERTFORDSHIRE, AL9 6NH

    Received 17 Dec 2007
  24. Decided - Refused6/2022/0987/LAWP

    Certificate of lawfulness for the erection of a single storey rear extension

    13 Plough Hill Cuffley Potters Bar Hertfordshire EN6 4DN

    Received 26 Apr 2022

Records are ordered by application ID, not submission date. Use search to find a particular address or proposal.

View all applications

Get emailed about new planning applications in Welwyn Hatfield

Area alerts send a daily or weekly email with new applications and decisions near a postcode, filtered by project type. £29 a month, up to 3 areas. Records are limited to the councils we collect.

Set up an area alert

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.

  • 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.

  • 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.

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.

Check collection coverage