PlanningTrack
Get started

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
40,297Searchable applications
283Recorded as pending
86%Approval rate · 33,821 approved or refused records
4,819Refused applications

29,002 approved · 4,819 refused · 2,219 withdrawn. Received dates in our records: 29 Apr 1948 to 29 Oct 2026. Most recent record check: 9 Nov 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 Counts reflect the last collected status; some records may be out of date.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 - RefusedW6/2004/0520/EM

    ERECTION OF TWO STOREY SIDE EXTENSION AND FRONT PORCH

    8 Furzefield Road, Welwyn Garden City, AL7 3RH

    Received 8 Apr 2004
  2. Decided - Withdrawn6/2022/1570/HOUSE

    Erection of a two storey side extension and alterations to front elevation, rear terrace with steps to garden level

    3 The Ridgeway Cuffley Potters Bar Hertfordshire EN6 4AY

    Received 4 Jul 2022
  3. Decided6/2017/2146/TPO

    3 x Cypress to fell to ground level 1 x Pyracanthea to fell to ground level 1 x Cotoneaster to reduce by 1m height & 1.5m width and 1 x Holly hedge to reduce to 2m above ground level - Conservation Area

    7 Elmwood Welwyn Garden City AL8 6LD

    Received 22 Sept 2017
  4. Decided - GrantedN6/2008/0957/TP

    FELLING OF T2 (BEECH TREE) AND T5 (HORNBEAM) COVERED BY TPO 314

    Land at 14 & 16 The Avenue Welwyn AL6 0PN

    Received 26 Jun 2008
  5. Decided - Granted6/2022/1803/COND

    Submission of details pursuant to condition 3 (decking and balustrade) on planning application 6/2020/3187/FULL

    7 Wendover Drive Welwyn AL6 9LT

    Received 1 Aug 2022
  6. Decided - Granted6/2018/1916/EM

    Erection of first floor front and part single part two storey rear extensions, porch alteration, roof alterations over garage and alterations to openings. Conversion of garage into habitable accommodation. Construction of rear patio and front pathway. Landscape changes to front garden

    14 Guessens Road Welwyn Garden City AL8 6QR

    Received 20 Jul 2018
  7. Decided - Granted6/2019/0572/HOUSE

    Erection of single storey rear extension spa unit

    Cedar House ESSENDON PLACE High Road Essendon Hatfield AL9 6GZ

    Received 11 Mar 2019
  8. Decided - Granted6/2022/1856/LAWP

    Certificate of Lawfulness for the proposed removal of external double door and replacing with window to match existing first floor windows on front elevation and internal works

    4 Warwick Avenue Cuffley Potters Bar Hertfordshire EN6 4RU

    Received 9 Aug 2022
  9. Decided - Granted6/2016/2012/HOUSE

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

    97 Bramble Road Hatfield AL10 9SB

    Received 27 Sept 2016
  10. Decided - GrantedN6/2013/0797/LUP

    Certificate of lawfulness for the erection of single storey rear extension

    42 Lemsford Village Welwyn Garden City AL8 7TR

    Received 16 Apr 2013
  11. Decided - Granted6/2022/1456/HOUSE

    Installation of heat pump

    6 The Drive Welwyn AL6 0TR

    Received 22 Jun 2022
  12. Decided - Granted6/2021/0801/HOUSE

    Installation of front window to facilitate conversion of garage into a habitable room

    8 Orchid Close Hatfield AL10 9FE

    Received 11 Mar 2021
  13. Decided - Granted6/2016/1538/EM

    T1 conifer reduce height by 6-8 feet and lift crown up to 8ft, T2 cherry tree reduce crown by 20-25% (2-2.5m) and lift crown up to 12ft from ground

    17 Walden Place, Welwyn Garden City, AL8 7PG

    Received 26 Jul 2016
  14. Decided - GrantedN6/2004/1646/FP

    NEW CHIMNEY

    49 New Road Digswell Welwyn AL6 0AQ

    Received 8 Nov 2004
  15. Decided - Granted6/2025/2498/EM

    Erection of a single storey rear extension and alterations to the fenestration at the rear elevation

    17 Attimore Road Welwyn Garden City AL8 6LH

    Received 1 Dec 2025
  16. Decided - GrantedS6/2007/0720/LU

    CERTIFICATE OF LAWFULNESS FOR AN EXISTING REAR CONSERVATORY

    38 Skimpans Close, Hatfield, AL9 7PB

    Received 10 May 2007
  17. Decided - Granted6/2018/1748/HOUSE

    Erection of front porch following demolition of existing porch and erection of part single part two storey rear extension

    61 London Road Welwyn AL6 9HU

    Received 3 Jul 2018
  18. Decided - Granted6/2015/2000/HOUSE

    Erection of glass veranda to the rear

    111 Parkway, Welwyn Garden City, AL8 6JD

    Received 28 Sept 2015
  19. Decided - GrantedC6/1988/07056/AD

    Illuminated projecting and fascia signs

    6 Wigmores South, Welwyn Garden City, AL8 6PL

    Received 4 Apr 1988
  20. Decided - Granted6/2022/1842/TPO

    T1 - Oak tree - TPO 888 (2018) Reduce the tree by up to 30% by removing no more than 2-3 meters of growth all around. Not to be reduced past the previous pruning points. Crown lift canopy to approximately 4 meters.

    2 Ellenbrook Lane Hatfield Hertfordshire AL10 9SG

    Received 8 Aug 2022
  21. Decided - GrantedW6/2006/0507/EM

    ERECTION OF TIMBER SUMMER HOUSE

    399 Knightsfield, Welwyn Garden City, AL8 7LY

    Received 19 Apr 2006
  22. Decided - Refused6/2021/1646/PN15

    Prior approval for the installation of an 18m Phase 8 Monopole C/W wrap around cabinet at base and associated ancillary works.

    Cole Green Lane Streetworks Cole Green Lane Welwyn Garden City AL7 3BX

    Received 24 May 2021
  23. Appeal Decided - Dismissed6/2020/1178/HOUSE

    Erection of single storey front extension, two storey side extension, part single/part two storey rear extension, rear dormer, installation of front rooflights and erection of rear outbuilding

    129 Peplins Way, Brookmans Park, Hatfield, AL9 7UT

    Received 27 May 2020
  24. Decided - Withdrawn6/2020/1915/LAWP

    Certificate of lawfulness for the change of use to HMO for up to 6 unrelated persons

    Vixendell Lane End Hatfield AL10 9AG

    Received 24 Jul 2020

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

View all applications

Applications by postcode area

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.

    UK research
    Published Updated

  • 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.

    UK research
    Published Updated

  • 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.

    UK research
    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.

Check collection coverage

More planning authorities in England

Browse all authorities