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
36,848Searchable applications
335Recorded as pending
86%Approval rate · 30,703 approved or refused records
4,227Refused applications

26,476 approved · 4,227 refused · 1,980 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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
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 - Granted6/2019/1103/HOUSE

    Erection of rear orangery

    30 Sherrardspark Road Welwyn Garden City AL8 7JS

    Received 8 May 2019
  2. Decided6/2018/0815/TPO

    Cut back branches of G1 Various trees by up to 20%, remove overhanging limbs from 1 x Hawthorn tree (T1) by up to 15% and remove overhang of 1 x Purple Leaved Plum tree (T2) by up to 10% - Conservation Area

    27 Attimore Road Welwyn Garden City AL8 6LQ

    Received 27 Mar 2018
  3. Decided - Granted6/2021/1048/HOUSE

    Erection of part single, part two storey side extension; basement; enlargement of roof; erection of three rear dormers; insertion of side rooflight; and alterations to openings.

    4 Hawkshead Lane North Mymms Hatfield AL9 7TB

    Received 30 Mar 2021
  4. Decided - Withdrawn6/2016/0374/PN8

    Prior approval for the erection of a single storey rear extension, measuring 3.9m. deep, 2.85m. in length and 2.6m. by the eaves

    11 Welham Close, Welham Green, Hatfield, AL9 7PP

    Received 3 Mar 2016
  5. Decided - Granted6/2015/1556/TPO

    Reduce one hornbeam to 4m and another hornbeam to 5m. Crown reduce 2 hornbeams by 30-40%. Reduce hornbeam in front garden by 40%

    19 Scholars Mews, Welwyn Garden City, AL8 7JQ

    Received 22 Jul 2015
  6. Decided - Granted6/2026/0368/HOUSE

    Erection of single storey rear extension, first floor front and side extension, single storey front infill extension and alteration to fenestration

    13 Greenfield Hatfield AL9 5HW

    Received 27 Feb 2026
  7. Decided - Granted6/2019/1903/HOUSE

    Alterations to fenestration with garage conversion into habitable space

    48 Butterwick Way Welwyn AL6 9GH

    Received 5 Aug 2019
  8. Decided - Granted6/2018/0067/EM

    Crown reduce beech tree by 20%.

    22 Turmore Dale Welwyn Garden City AL8 6HS

    Received 9 Jan 2018
  9. Decided - Withdrawn6/2024/0077/HOUSE

    Installation of 14 solar panels to rear roof

    6 Hawthorns Welwyn Garden City AL8 7SE

    Received 11 Jan 2024
  10. Appeal Decided - AllowedS6/2014/0726/FP

    Erection of first floor side and ground floor front extension

    111 Hatfield Road, Little Heath, Potters Bar, EN6 1HZ

    Received 4 Apr 2014
  11. Decided - GrantedW6/2009/0283/EM

    REPLACEMENT WINDOWS TO THE FRONT AND REAR ELEVATIONS AND INSERTION OF FRENCH DOORS TO THE REAR ELEVATION

    239 DANIELLS, WELWYN GARDEN CITY, HERTFORDSHIRE, AL7 1QD

    Received 12 Feb 2009
  12. Decided - Granted6/2021/1216/FULL

    Erection of two storey rear extension

    Marshmoor Works Great North Road Hatfield AL9 5SD

    Received 14 Apr 2021
  13. Decided - GrantedS6/2008/0221/FP

    ERECTION OF NEW DWELLING WITH INTEGRAL GARAGE, FOLLOWING DEMOLITION OF EXISITING DWELLING, GARAGE AND OUTBUILDING

    59 GEORGES WOOD ROAD, BROOKMANS PARK, HATFIELD, HERTFORDSHIRE, AL9 7BX

    Received 6 Feb 2008
  14. Decided - Granted6/2023/0427/HOUSE

    Loft extension with installation of front & rear dormers and raising the height of the existing roof

    3 Wendover Drive Welwyn AL6 9LT

    Received 24 Feb 2023
  15. Decided - Granted6/2016/2168/LAWP

    Certificate of lawfulness for a change of use from A1 (Shops) to A2 (Financial & Professional Services)

    51 Bradmore Green Brookmans Park Hatfield AL9 7QS

    Received 10 Oct 2016
  16. Decided - Granted6/2024/0869/EM

    Erection of single storey side/rear extension, following demolition of existing conservatory and side extension

    9 Beehive Lane Welwyn Garden City AL7 4BB

    Received 8 May 2024
  17. Decided - Granted6/2024/0743/TPO

    1 x Austrian pine to reduce selected over long limbs (identified in photograph ‘selected branches to reduce’.

    15 Heath Road Welwyn AL6 0TP

    Received 22 Apr 2024
  18. Decided - Withdrawn6/2021/1342/EM

    Erection of a two-storey detached house, associated parking and access on the land to the rear of 54 Bridge Road.

    54 Bridge Road Welwyn Garden City AL8 6UR

    Received 26 Apr 2021
  19. Decided - Granted6/2017/0769/MAJ

    Erection of a four storey 123 bedroom hotel, associated parking and landscaping.

    Land between Kestrel Way and Bessemer Road Shire Park Welwyn Garden City

    Received 18 Apr 2017
  20. Decided - Granted6/2023/0448/FULL

    Retention of temporary classroom

    University Of Hertfordshire College Lane Campus College Lane Hatfield AL10 9AB

    Received 27 Feb 2023
  21. Decided - Refused6/2022/1765/HOUSE

    Erection of part single and part two storey rear extension

    239 Knella Road Welwyn Garden City AL7 3NS

    Received 27 Jul 2022
  22. Decided - Granted6/2025/2096/COND

    Submission of details pursuant to Condition 7 (Tactile Paving Crossing Plans) & 8 (Uncontrolled Crossing Point Plans) on planning permission 6/2024/1512/MAJ

    Elizabeth House Elizabeth Close Welwyn Garden City AL7 2JB

    Received 1 Oct 2025
  23. Decided - GrantedS6/2013/2277/FP

    Erection of single storey and two storey rear extensions and single storey front extension

    147 Bishops Rise Hatfield AL10 9ER

    Received 24 Oct 2013
  24. Decided - RefusedN6/2014/2734/FP

    Erection of two storey side extension

    10 Thumbswood, Welwyn Garden City, AL7 4QE

    Received 19 Dec 2014

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