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29,002 approved · 4,819 refused · 2,219 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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 - WithdrawnW6/2009/0321/EM

    ERECTION OF PART TWO STOREY, PART SINGLE STOREY REAR EXTENSION AND SINGLE STOREY SIDE EXTENSION

    1 REDDINGS, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7LA

    Received 12 Feb 2009
  2. Decided - Granted6/2019/2881/HOUSE

    Erection of front porch and single storey rear extension

    12 Wellington Drive Welwyn Garden City AL7 2NJ

    Received 15 Nov 2019
  3. Decided - Refused6/2020/2398/EM

    Proposed roof-light in northeast side elevation, roof not opening below 1.7m with obscured glass

    3 High Grove Welwyn Garden City AL8 7DW

    Received 18 Sept 2020
  4. Decided - Refused6/2021/2556/HOUSE

    Erection of a part ground floor front to side extension, first floor front and side to rear extension and installation of two dormer windows

    4 Bradgate Close Cuffley Potters Bar EN6 4RF

    Received 1 Sept 2021
  5. Decided - Granted6/2017/0382/EM

    Prune Lime tree located in rear garden by upto 35%

    32 Blakemere Road Welwyn Garden City AL8 7PJ

    Received 27 Feb 2017
  6. Decided - Granted6/2015/1595/HOUSE

    Erection of single storey rear extension and raised patio area

    14 Coulter Close Cuffley Potters Bar EN6 4RR

    Received 28 Jul 2015
  7. Decided - GrantedC6/1988/0631/FP

    Single storey front extension to form porch

    196 Thistle Grove, Welwyn Garden City, AL7 4AJ

    Received 1 Jan 1988
  8. Decided - Granted6/2021/0666/EMT

    Fell 1 x Cherry tree, fell 1 x Sycamore tree

    48 Valley Road Welwyn Garden City AL8 7DN

    Received 1 Mar 2021
  9. Decided - Granted6/2020/3030/PN14

    Prior approval for demolition of 3-9 Town Centre

    3-9 Town Centre Hatfield AL10 0JZ

    Received 16 Nov 2020
  10. Decided - GrantedN6/2005/1343/TP

    WORKS TO LAWSON CYPRUS COVERED BY TPO 39

    3 Jenning Wood Welwyn AL6 0SL

    Received 18 Oct 2005
  11. Decided - Granted6/2018/1573/HOUSE

    Erection of single storey side and two storey rear extension with loft conversion and installation of dormer window (amended description to remove proposed side dormer window, install side rooflight, minor alterations to ground floor windows and doors dated 16/8/2018)

    41 Valley Road Welwyn Garden City AL8 7DH

    Received 12 Jun 2018
  12. Decided - Granted6/2017/2903/EM

    Erection of side extension over existing garage and rear infill and installation of windows.

    169 Boundary Lane Welwyn Garden City AL7 4EQ

    Received 14 Dec 2017
  13. Decided - Granted6/2021/2252/EMT

    Fell 1 x Ash tree (1) Reduce 1 x Oak (2) by approx. 25% to take back to previous reduction points and a 20% crown thin. Reduce 2 x Oak trees (3, 4) by 33%

    17 Roundwood Drive Welwyn Garden City AL8 7JZ

    Received 27 Jul 2021
  14. Decided - Granted6/2020/1814/COND

    Submission of details pursuant to condition 1 (Construction Method Statement) on planning permission 6/2019/1067/MAJ

    Hill-top High View Hatfield AL10 8HZ

    Received 23 Jul 2020
  15. Decided - GrantedW6/2008/2057/EM

    FORMATION OF HARDSTANDING

    39 THISTLE GROVE, WELWYN GARDEN CITY, HERTFORDSHIRE, AL7 4AD

    Received 28 Oct 2008
  16. Decided - GrantedS6/2015/0733/FP

    Erection of single storey rear and side extension

    63 Mymms Drive, Hatfield, AL9 7AE

    Received 13 Apr 2015
  17. Decided - Granted6/2015/2527/ADV

    Installation of 6no illuminated signs and 3no non illuminated letter signs

    The Scale & Compass (New Build), Bessemer Road, Welwyn Garden City, AL7 1HT

    Received 23 Dec 2015
  18. Decided - Granted6/2021/1307/EM

    Erection of single storey front and rear extensions, to include alterations to openings.

    12 Warren Dale Welwyn Garden City AL8 7HN

    Received 22 Apr 2021
  19. Decided - Granted6/2024/0931/LB

    The replacement of 10 sliding sashes to existing frames and the full replacement of 4 casement windows

    12 Digswell House Monks Rise Welwyn Garden City AL8 7NX

    Received 20 May 2024
  20. Decided - Granted6/2019/2046/EM

    Reduce 1x Cherry tree by 2m (T1) Fell 1x Rowan tree (T2)

    72 Parkway Welwyn Garden City AL8 6HH

    Received 15 Aug 2019
  21. Decided - Granted6/2016/0400/COND

    Approval of details reserved by condition 2 (materials) condition 3 (landscaping) and condition 5 (ground levels) on planning permission S6/2015/1135/FP

    315 St Albans Road West, Hatfield, AL10 9RJ

    Received 4 Mar 2016
  22. Decided - GrantedW6/2007/1060/EM

    PROPOSED SINGLE STOREY REAR EXTENSION

    26 Elmwood, Welwyn Garden City, AL8 6LE

    Received 16 Jul 2007
  23. Decided - Refused6/2023/0803/COND

    Submission of details pursuant to the discharge of condition 2 (Materials) condition 3 (Landscaping) & condition 5 (Cycle Plan) on planning permission 6/2021/2595/FULL

    71 Bluebridge Road Brookmans Park AL9 7UW

    Received 14 Apr 2023
  24. Decided - Refused6/2017/0610/HOUSE

    Erection of a part single storey part two storey rear extension, a first floor extension over existing garage together with alterations to convert garage into a new kitchen

    16 East View, Essendon, Hatfield, AL9 6HJ

    Received 27 Mar 2017

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