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
34,417Searchable applications
313Recorded as pending
87%Approval rate · 28,711 approved or refused records
3,793Refused applications

24,918 approved · 3,793 refused · 1,787 withdrawn. Received dates in our records: 29 Apr 1948 to 14 Oct 2026. Most recent record check: 21 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2021/3193/TPO

    Removal of 2 dying and dangerous ash trees covered with TPO 16 (1973)

    Trees within Gobions Wood Brookmans Park Hatfield

    Received 8 Nov 2021
  2. Appeal Decided - Dismissed6/2023/0626/HOUSE

    Erection of 2-storey side extension with side access to garden following the demolition of existing en-bloc garage

    59 Marsden Road Welwyn Garden City AL8 6YH

    Received 21 Mar 2023
  3. Decided - GrantedS6/2014/0563/FP

    Erection of single storey rear extensions and rear dormer

    9 Theobalds Close, Cuffley, Potters Bar, EN6 4HH

    Received 17 Mar 2014
  4. Decided - GrantedS6/2009/2382/FP

    ERECTION OF SINGLE STOREY REAR EXTENSION

    67 CALDER AVENUE, BROOKMANS PARK, HATFIELD, HERTFORDSHIRE, AL9 7AJ

    Received 28 Oct 2009
  5. Decided - Granted6/2016/0602/EM

    Repositioning of boiler (Flue) to top of garage

    14 Digswell Road, Welwyn Garden City, AL8 7PA

    Received 5 Apr 2016
  6. Decided6/2018/1995/TPO

    Oak: reduce crown by 7m- conservation area

    51 Brockswood Lane Welwyn Garden City AL8 7BU

    Received 30 Jul 2018
  7. Decided - GrantedN6/2014/1896/HH

    Prior approval for a single storey rear extension

    Bramley Cottage 60 Hertford Road Digswell Welwyn AL6 0BX

    Received 27 Aug 2014
  8. Decided - Granted6/2023/0969/EM

    Installation of 6 solar panels on flat roof of detached garage to the side of the house.

    104 Handside Lane, Welwyn Garden City, AL8 6SY

    Received 9 May 2023
  9. Decided - Granted6/2024/2142/EMT

    1 x Hazel to reduce by approximately 2m in height and 1.2m in width. This is in order to maintain size and shape Retrospective: 1 x Goat Willow to remove in sections to ground level. This is due to the proximity to boundary and its causing a nuisance to neighbours

    48 Valley Road Welwyn Garden City AL8 7DN

    Received 6 Nov 2024
  10. Decided - Granted6/2017/1518/EM

    Fell Silver birch tree

    108 Handside Lane Welwyn Garden City AL8 6SY

    Received 12 Jul 2017
  11. Decided - Granted6/2023/1214/EMT

    Fell one dead Cherry tree stump to ground level

    75 Sweet Briar, Welwyn Garden City, AL7 3EB

    Received 8 Jun 2023
  12. Decided - Granted6/2022/1649/EM

    Installation of three rear rooflights to facilitate the conversion of the loft to habitable space

    159 Parkway Welwyn Garden City AL8 6JA

    Received 12 Jul 2022
  13. Decided - GrantedS6/2013/0691/FP

    Erection of single storey front extension

    34 Newgate Street Village, HERTFORD, SG13 8RB

    Received 2 Apr 2013
  14. Decided - Granted6/2020/0589/HOUSE

    Replacement of existing conservatory with an orangery

    2 Handside Close Welwyn Garden City AL8 6SR

    Received 2 Mar 2020
  15. Decided - GrantedW6/2014/2389/TE

    Work to Oak Trees T1 & T3 to uplift/crown reduce by 15 - 25%

    38 Reddings, Welwyn Garden City, AL8 7LA

    Received 25 Sept 2014
  16. Decided - RefusedW6/2015/0424/EM

    Partial retention and alterations to existing front porch

    1 Birds Close, Welwyn Garden City, AL7 4AR

    Received 4 Mar 2015
  17. Decided - Granted6/2016/0879/LAWP

    Certificate of lawfulness for proposed relocation of 2no caravans within the existing park boundary from the positions shown on the plans accompanying the application referenced 6/2015/0771/LUP and shown cross-hatched in red on the plan attached to that certificate to the positions shown on drawing number 160428.2 accompanying this application and shown cross-hatched in red on the plan attached to this certificate

    The Firs Park, Woodside Lane, Hatfield, AL9 6DF

    Received 6 May 2016
  18. Decided - Granted6/2018/0501/HOUSE

    Retention of raised decking area and access steps

    12 Coulter Close Cuffley Potters Bar EN6 4RR

    Received 20 Feb 2018
  19. Decided - Granted6/2022/1579/HOUSE

    Erection of single storey rear extension and a garden room

    43 Rivenhall End Welwyn Garden City Hertfordshire AL7 2PL

    Received 5 Jul 2022
  20. Decided - GrantedC6/1988/0685/LB

    Demolition of outbuilding; bricking up of doorway and installation of rooflights

    Dairy Lodge, High Road, Hatfield, AL9 6HU

    Received 1 Jan 1988
  21. Decided - Granted6/2018/0678/COND

    Submission of details pursuant to condition 7 (external lighting) on planning permission 6/2017/1028/MAJ,

    20 Black Fan Road Welwyn Garden City AL7 1QA

    Received 12 Mar 2018
  22. Decided - Refused6/2021/1232/OUTLINE

    Outline permission for the erection of a 3-bed bungalow with all matters reserved

    Land to the rear of 33 Northdown Road Hatfield AL10 8SH

    Received 15 Apr 2021
  23. Decided - RefusedS6/2008/1763/FP

    LOFT CONVERSION WITH REAR DORMER AND ROOF LIGHTS TO THE FRONT ELEVATION

    14 Bluebell Way Hatfield AL10 9FJ

    Received 12 Sept 2008
  24. Decided - Granted6/2025/0513/HOUSE

    Erection of part two storey front and rear extension and installation of front boundary wall with sliding gate

    89 Brookmans Avenue Brookmans Park AL9 7QG

    Received 19 Mar 2025

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