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
40,247Searchable applications
321Recorded as pending
86%Approval rate · 33,743 approved or refused records
4,812Refused applications

28,931 approved · 4,812 refused · 2,213 withdrawn. Received dates in our records: 29 Apr 1948 to 29 Oct 2026. Most recent record check: 6 Nov 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 Counts reflect the last collected status; some records may be out of date.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. Appeal Decided - Dismissed6/2016/0514/EM

    Removal of secondary rear chimney

    7 Youngs Rise, Welwyn Garden City, AL8 6RT

    Received 25 Mar 2016
  2. Decided - Granted6/2025/2603/COND

    Submission of details pursuant to Condition 1 (Arboricultural Method Statement and Tree Protection Strategy) on planning permission 6/2025/1941/HOUSE

    73 Dellsome Lane Welham Green Hatfield AL9 7NE

    Received 19 Dec 2025
  3. Decided6/2020/3012/TC

    Atlas Cedar (T1) - Fell

    52 Parkway Welwyn Garden City AL8 6HH

    Received 16 Nov 2020
  4. Decided - GrantedS6/2014/1580/FP

    Change of use of rear part of ground floor to use class C3 (residential) to form 1 x one bedroom unit. Erection of single storey rear extension following demolition of existing rear addition and canopy. Installation of 4 rooflights to existing flat roof

    7 Manor Parade, Hatfield, AL10 9JS

    Received 14 Jul 2014
  5. Decided - GrantedW6/2009/1933/EM

    ERECTION OF A SINGLE STOREY EXTENSION

    6 BLAKEMERE ROAD, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7PJ

    Received 14 Sept 2009
  6. Decided - GrantedW6/2004/1771/EM

    PROPOSED VEHICLE HARDSTANDING

    184 Knightsfield, Welwyn Garden City, AL8 7RJ

    Received 30 Nov 2004
  7. Decided - WithdrawnS6/2015/1038/FP

    Erection of first floor extension over existing garage, incorporating conversion of existing garage to residential accommodation, and erection of new garage

    Claytiles Great North Road Hatfield AL9 6DA

    Received 20 May 2015
  8. Decided - GrantedW6/2015/1210/EM

    Erection of rear conservatory, incorporating replacement front porch and replacement windows and door to the existing dwelling.

    47 Haldens Welwyn Garden City AL7 1DH

    Received 5 Jun 2015
  9. Decided - Withdrawn6/2016/1594/LAWP

    Certificate of lawfulness for the proposed conversion of existing hip end roof to gable end and installation of rear dormer window

    45 Moffats Lane, Brookmans Park, Hatfield, AL9 7RX

    Received 4 Aug 2016
  10. Decided - Granted6/2017/1273/COND

    Submission of details pursuant to condition 1 (parking during construction) on planning permission 6/2017/0504/FULL dated 01/06/2017

    Hertfordshire Constabulary Stanborough Road Welwyn Garden City AL8 6XF

    Received 12 Jun 2017
  11. Decided - Granted6/2019/1884/LAWP

    Certificate of lawfulness for the erection of a single storey rear extension following demolition of conservatory

    11 Mount Pleasant Close, Hatfield, AL9 5BZ

    Received 1 Aug 2019
  12. Decided - Granted6/2017/1578/FULL

    Change of use from amenity land to parking (sui generis) Installation of 4 off-street parking spaces, removal of existing grass verge and removal of section of existing footway

    Land at flats 10-16a Dellsome Lane Welham Green Hatfield AL9 7NF

    Received 20 Jul 2017
  13. Decided - Granted6/2016/1306/HOUSE

    Erection of single storey rear extension following demolition of existing conservatory

    40 Homewood Avenue, Cuffley, Potters Bar, EN6 4QR

    Received 29 Jun 2016
  14. Decided - Granted6/2020/1363/HOUSE

    Demolition of existing outbuilding and shed and erection of a proposed side extension to main dwelling with shed.

    33 Springfields Welwyn Garden City AL8 6XT

    Received 15 Jun 2020
  15. DecidedN6/2014/1557/TC

    Reduce Beech tree crown by upto 25% and reduce Lime tree back to previous pruning points (approximately 30%)

    30 Youngs Rise, Welwyn Garden City, AL8 6RU

    Received 11 Jul 2014
  16. Decided - Granted6/2024/1249/HOUSE

    Erection of a single storey rear and side extension and front porch

    42 Broomfield Road Welwyn AL6 9DW

    Received 4 Jul 2024
  17. Decided - GrantedN6/2013/0548/DS

    Discharge of condition 7 (Construction Environmental Management Plan), 13 (Construction Traffic Management Plan) of planning permission N6/2012/1778/OP

    The Frythe, 5 Digswell Hill, WELWYN, AL6 9AR

    Received 18 Mar 2013
  18. Decided6/2025/1752/TC

    T1 Prunus Autumnalis, fell to ground level

    47 Elmwood Welwyn Garden City AL8 6LD

    Received 18 Aug 2025
  19. Decided - GrantedW6/2013/2415/EM

    Erection of rear conservatory

    17 Hillside, Welwyn Garden City, AL7 4PZ

    Received 5 Nov 2013
  20. Decided - GrantedW6/2008/0947/EM

    ERECTION OF GREENHOUSE

    6 HALL GROVE, WELWYN GARDEN CITY, HERTFORDSHIRE, AL7 4PN

    Received 18 Jun 2008
  21. Decided - GrantedN6/2009/1564/FP

    CHANGE OF USE OF FIRST FLOOR TO B1 OFFICES AND FORMATION OF CAR PARK

    Queen Victoria Memorial Hospital 73 School Lane Welwyn AL6 9PW

    Received 5 Oct 2009
  22. Decided - Withdrawn6/2025/1598/PN24

    Prior approval for installation of a PV system onto the roof of the property

    39 Woodland Rise Welwyn Garden City AL8 7LJ

    Received 24 Jul 2025
  23. Decided6/2024/1924/TC

    1 x Hawthorn to fell.

    12 Pentley Park Welwyn Garden City AL8 7RU

    Received 8 Oct 2024
  24. Decided - Granted6/2023/1767/EM

    Replacement and alterations to openings on all elevations, addition of facing brickwork, new slatted garage door and new ‘K’ render to front and rear elevations, plus new flat roof to front elevation with timber clad metal posts

    27 Reddings Welwyn Garden City AL8 7LA

    Received 22 Aug 2023

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