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
39,929Searchable applications
298Recorded as pending
86%Approval rate · 33,479 approved or refused records
4,786Refused applications

28,693 approved · 4,786 refused · 2,193 withdrawn. Received dates in our records: 29 Apr 1948 to 26 Oct 2026. Most recent record check: 29 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2021/2055/EM

    Removal of current shed and replacement with a larger shed/summer house.

    329 Knightsfield Welwyn Garden City AL8 7NJ

    Received 7 Jul 2021
  2. Decided - GrantedS6/2013/0744/DS

    Discharge of conditions 3 (Hard and Soft Landscaping), 4 (Refuse Bin and Recycling) and 5 (Cycle Parking) from planning permission S6/2012/2610/FP

    13-15 Northaw Road East, Cuffley, POTTERS BAR, EN6 4LU

    Received 8 Apr 2013
  3. Decided - Granted6/2022/1574/HOUSE

    Erection of single storey rear extension

    247 Knella Road Welwyn Garden City Hertfordshire AL7 3NS

    Received 5 Jul 2022
  4. Decided - GrantedS6/2012/2641/FP

    Erection of storage warehouse

    Eisai Europe Limited European Knowledge Centre, Mosquito Way, HATFIELD, AL10 9SN

    Received 19 Dec 2012
  5. Decided - Granted6/2019/0073/LAWP

    Certificate of lawfulness for the erection of two storey rear extension and single storey side extensions to both sides

    4 Hawkshead Lane North Mymms Hatfield AL9 7TB

    Received 15 Jan 2019
  6. Decided - Granted6/2020/2551/LAWP

    Lawful development certificate for the erection of loft conversion with rear facing dormer and roof lights to the front.

    7 The Brambles, Welwyn, AL6 0PG

    Received 1 Oct 2020
  7. Decided - Granted6/2021/3163/EMH

    Conversion of part of outhouse to form shower room

    48 Great Ganett Welwyn Garden City AL7 3DE

    Received 4 Nov 2021
  8. Decided - Granted6/2020/0457/HOUSE

    Erection of a part single, part two storey rear extension, part first floor side and part first floor front extension, single storey front extension to garage, erection of front porch, increase in roof height, installation of 1x rear dormer with Juliette balcony, installation 4x side facing rooflights and installation of 2x front dormer windows

    7 Georges Wood Road Hatfield AL9 7BY

    Received 18 Feb 2020
  9. Decided6/2018/0325/TPO

    Fell 1 x Ash tree - Conservation Area

    62 Handside Lane Welwyn Garden City AL8 6SJ

    Received 31 Jan 2018
  10. DecidedS6/2009/2662/TP

    WORKS TO DANGEROUS TREES COVERED BY TPO 3(DDD)

    BEDWELL END, SCHOOL LANE, ESSENDON, HATFIELD, HERTS, AL9 6HL

    Received 14 Dec 2009
  11. Decided - Granted6/2016/1309/HOUSE

    Erection of two storey front extension

    3 Elmoor Avenue Welwyn AL6 9PG

    Received 29 Jun 2016
  12. Decided - Granted6/2024/2438/HOUSE

    Erection of a porch

    14 Birchwood Close Hatfield AL10 0PP

    Received 30 Dec 2024
  13. Decided - Granted6/2017/2633/EM

    Partial removal of existing hedge and formation of hard standing

    52 Thistle Grove Welwyn Garden City AL7 4AN

    Received 10 Nov 2017
  14. Decided - Granted6/2018/1696/COND

    Submission of details pursuant to condition 5 (Construction Management Plan) on 6/2018/0285/MAJ

    Unit 3C Bridgefields Welwyn Garden City AL7 1RX

    Received 25 Jun 2018
  15. Decided - GrantedW6/2014/0636/EM

    Erection of two storey side extension

    47 Peartree Lane, Welwyn Garden City, AL7 3UA

    Received 28 Mar 2014
  16. Decided - GrantedN6/2014/1153/NM

    Non material amendment following approval of planning permission N6/2013/2449/FP - Additional window to rear and enlargement of approved window

    77 Eddington Crescent Welwyn Garden City AL7 4SX

    Received 3 Jun 2014
  17. Decided - Granted6/2023/2416/FULL

    Change of use of land to residential. Demolition of existing stable building and erection of a two bedroom dwelling with associated access, parking and landscaping. Works to public footpath

    Land at Great North Road Stanborough AL8 7TJ

    Received 30 Nov 2023
  18. Decided6/2020/0104/TC

    Fell 1 x Eucalyptus (T1) covered by conservation area

    3 Guessens Road Welwyn Garden City AL8 6QW

    Received 16 Jan 2020
  19. Decided - GrantedN6/2014/0472/FP

    Erection of first floor rear extension

    43 Beehive Lane, Welwyn Garden City, AL7 4BJ

    Received 5 Mar 2014
  20. Decided - GrantedW6/2009/2684/EM

    ERECTION OF A SINGLE STOREY FLAT ROOFED REAR EXTENSION

    9 BROCKSWOOD LANE, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7BA

    Received 16 Dec 2009
  21. Decided - WithdrawnN6/2007/1085/FP

    CREATION OF VEHICULAR EGRESS ONTO KNIGHTSFIELD FROM CIRRUS CAR PARK AND PARKING RESTRICTIONS

    Tesco Stores Ltd Travellers Lane Welham Green Hatfield AL10 8XF

    Received 19 Jul 2007
  22. Decided - Granted6/2015/2152/EM

    Reduce Oak tree crown by 25%.

    10 High Oaks Road, Welwyn Garden City, AL8 7BH

    Received 19 Oct 2015
  23. Decided - RefusedS6/2014/1155/LUP

    Certificate of lawfulness for the erection of outbuilding/garage to the rear of garden

    2 Bacons Drive, Cuffley, Potters Bar, EN6 4EF

    Received 22 May 2014
  24. Decided - Granted6/2022/1529/EMT

    T2 - Apple - Fell to ground level

    2 Lytton Gardens Welwyn Garden City AL8 6EG

    Received 30 Jun 2022

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