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29,002 approved · 4,819 refused · 2,219 withdrawn.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: 8 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2023/2500/EMT

    G1 Fell 1 x Prunus.

    6 Polayn Garth Welwyn Garden City AL8 7DJ

    Received 14 Dec 2023
  2. Decided - Granted6/2016/0001/HOUSE

    Erection of a two storey side extension and rear dormer window

    64 Georges Wood Road, Brookmans Park, Hatfield, AL9 7BU

    Received 6 Jan 2016
  3. Decided - GrantedS6/2006/0321/FP

    ERECTION OF SINGLE STOREY REAR EXTENSION

    80 Chelwood Avenue Hatfield AL10 0RE

    Received 20 Mar 2006
  4. Decided - GrantedN6/2007/1502/TP

    VARIOUS WORKS TO 7 OAK TREES COVERED BY TPO 292 (see works schedule)

    23 Woodland Way Welwyn AL6 0RX

    Received 11 Oct 2007
  5. Decided - Granted6/2026/0405/COND

    Submission of details pursuant to condition 1 (Construction Ecological Management Plan), condition 2 (Biodiversity Enhancement Plans), condition 4 (Hard and Soft Landscape Works), condition 5 (Contamination), condition 6 (Materials), condition 7 (Sustainability and Energy Efficiency) on planning permission 6/2025/2017/VAR

    Land adjacent to 51 Great North Road Stanborough AL8 7TJ

    Received 5 Mar 2026
  6. Decided - GrantedN6/2013/1222/FP

    Erection of rear conservatory following removal of existing

    12 Duncan Close, Welwyn Garden City, AL7 3XP

    Received 12 Jun 2013
  7. Decided - GrantedN6/2004/1483/DE

    RESERVED MATTERS APPLICATION FOLLOWING OUTLINE PERMISSION C6/0482/1988/OP, FOR THE ERECTION OF 309 HOUSES AND FLATS, ACCESS ROADS, GARAGES AND PARKING COURTYARDS,

    LAND AT CHEQUERSFIELD, WELWYN GARDEN CITY, HERTFORDSHIRE

    Received 1 Oct 2004
  8. Decided - Refused6/2021/0652/HOUSE

    Erection of single storey rear extension

    27 Wheatley Road Welwyn Garden City AL7 3LL

    Received 1 Mar 2021
  9. Decided - Refused6/2025/0108/TC

    Ash tree in the south-west corner of the garden Considered to be dead and a dangerous to both this property and the neighbours Labelled 'Ash 10m' on drawing 3698 PL01A.pdf

    20 Rooks Hill Welwyn Garden City AL8 6ET

    Received 22 Jan 2025
  10. Decided - GrantedW6/2009/1718/EM

    ERECTION OF REAR CONSERVATORY

    191 BOUNDARY LANE, WELWYN GARDEN CITY, HERTFORDSHIRE, AL7 4EJ

    Received 7 Aug 2009
  11. Decided - Withdrawn6/2017/0377/MAJ

    Erection of 14 dwellings, refurbishment and extension of the Grade II Listed Green Man Public House, construction of a new car park for the Green Man Public House and a new car park for Mill Green Museum, new public open space, acoustic fencing including wider public realm improvements and all ancillary works.

    Mill Green Mill Green Lane Hatfield AL9 5NQ

    Received 27 Feb 2017
  12. Decided - Granted6/2022/1956/LB

    Internal alterations to the property with the removal of spiral staircase to be replaced with a timber staircase. The removal of partition on the ground floor between the kitchen and living room and the removal of the existing partitions on the second floor and replace with a glass guarding, along with modifications to the partitions on the first floor landing to accommodate the new staircase and reconfiguring of first floor bathroom

    3 Church Cottages Church Street Essendon Hatfield AL9 6AS

    Received 22 Aug 2022
  13. Decided6/2022/2077/TC

    Ash tree at the end of the garden reduced in height by 50%

    44 Blakemere Road Welwyn Garden City AL8 7PJ

    Received 7 Sept 2022
  14. Decided - Refused6/2022/1652/HOUSE

    Erection of two storey rear extension

    11 Bushey Ley Welwyn Garden City AL7 3EY

    Received 13 Jul 2022
  15. Decided - Granted6/2023/0018/PN8

    Prior approval for the erection of a single storey rear extension following removal of existing lean-to conservatory measuring 5m in depth, 2.9m in height and 2.5m to the eaves

    23 Daniells Welwyn Garden City AL7 1QY

    Received 4 Jan 2023
  16. Decided - Granted6/2018/0806/PN8

    Prior approval for the erection of a single storey rear extension measuring 4.5m in depth, 3m in height and 3m to the eaves

    10 Orchard Way Little Heath Potters Bar EN6 1NT

    Received 21 Mar 2018
  17. Decided - Refused6/2018/2056/PN8

    Prior approval for the erection of a single storey, flat roofed rear extension to include insertion of roof light in proposed roof, measuring 3.65m in depth,2.93m in height and 2.5m to the eaves

    16 Hillside Welwyn Garden City AL7 4PZ

    Received 3 Aug 2018
  18. Decided - Granted6/2025/1991/HOUSE

    Erection of a two storey side/single storey rear extensions following the demolition of existing single storey side and rear extensions

    59 Chelwood Avenue Hatfield AL10 0RF

    Received 16 Sept 2025
  19. Decided - Granted6/2023/2479/HOUSE

    Erection of a single storey rear extension and insertion of rooflights into existing rear extension roof

    15 Ground Lane Hatfield AL10 0HQ

    Received 12 Dec 2023
  20. Decided - GrantedW6/2015/0157/EM

    Erection of a part single storey, part two storey rear extension and front porch

    21 Salisbury Road, Welwyn Garden City, AL7 3RR

    Received 28 Jan 2015
  21. Decided - Granted6/2017/1784/HOUSE

    Erection of a single storey side and rear and part two storey side extension following demolition of existing extension

    37 Chelwood Avenue Hatfield AL10 0RF

    Received 14 Aug 2017
  22. Decided - Refused6/2017/0845/EM

    1 x Plum to fell to ground level and 1 x Ash to fell to ground level

    120 Handside Lane Welwyn Garden City AL8 6SZ

    Received 24 Apr 2017
  23. Decided - GrantedW6/2004/1709/EM

    FORMATION OF ADDITIONAL HARDSTANDING

    31 Handside Lane, Welwyn Garden City, AL8 6SH

    Received 18 Nov 2004
  24. Decided - Granted6/2021/3337/FULL

    Change of use from a clothes shop (E(a)) to a sunbed salon (E(c)(iii))

    40 Wigmores North Welwyn Garden City AL8 6PH

    Received 26 Nov 2021

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