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29,002 approved · 4,819 refused · 2,219 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2024/0943/HOUSE

    Erection of an infill extension

    16 Great North Road Welwyn AL6 0PL

    Received 21 May 2024
  2. Decided - GrantedS6/2008/2442/LU

    CERTIFICATE OF LAWFULNESS FOR PROPOSED ALTERATIONS TO ROOF FROM HIP TO GABLE , EXTENSION TO REAR DORMER AND INSERTION OF WINDOWS INTO THE SIDE ELEVATION

    23 WESTLAND DRIVE, BROOKMANS PARK, HATFIELD, HERTFORDSHIRE, AL9 7UG

    Received 15 Dec 2008
  3. Decided - Granted6/2023/1648/HOUSE

    Erection of part single & part two storey side and rear extensions with fenestration alterations and insertion of new rooflights and retention of the existing detached outbuilding in the rear garden

    25 Selwyn Crescent Hatfield AL10 9NL

    Received 8 Aug 2023
  4. Decided - Granted6/2020/0061/FULL

    Erection of 1x 3 bedroom dwelling (revised/extended design).

    24 London Road Welwyn AL6 9JD

    Received 13 Jan 2020
  5. Decided - GrantedN6/2013/1885/DS

    Discharge of condition 3 (Materials) of planning permission N6/2013/0783/FP - Erection of two storey side and rear extensions and alterations to front and side elevations

    59 Blakemere Road, Welwyn Garden City, AL8 7PQ

    Received 21 Aug 2013
  6. Decided - Refused6/2023/2350/FULL

    Erection of a new dwelling, following partial demolition of the existing dwelling

    84 Warrengate Road North Mymms Hatfield AL9 7TY

    Received 22 Nov 2023
  7. Decided - Granted6/2019/1128/EM

    Pollard 1 x Willow Tree

    75 Digswell Park Road Welwyn Garden City AL8 7NW

    Received 9 May 2019
  8. Decided - Granted6/2021/1855/HOUSE

    Retention of an amended outbuilding

    33 Church Lane Northaw Potters Bar EN6 4NX

    Received 16 Jun 2021
  9. Decided - Granted6/2020/1464/HOUSE

    Erection of outbuilding to be used as gym

    8 Brookmans Avenue Hatfield AL9 7QJ

    Received 22 Jun 2020
  10. Decided - Granted6/2021/2563/EMT

    Reduce overgrowth on 1 x Beech Hedge back to original hedge height and cut off/prune branches on 1 x Fir tree

    10 Blakemere Road Welwyn Garden City AL8 7PJ

    Received 2 Sept 2021
  11. Decided - Granted6/2021/3106/COND

    Submission of details pursuant to conditions 9 (arboricultural method statement) and 10 (construction management plan) on planning permission 6/2018/3233/OUTLINE

    First House and Hyde Valley House Hyde Valley Welwyn Garden City AL7 4NE

    Received 29 Oct 2021
  12. Decided - Granted6/2021/1753/EMH

    Erection of single storey rear extension

    37 Rosedale Welwyn Garden City AL7 1DW

    Received 3 Jun 2021
  13. Decided - Granted6/2017/1066/TPO

    Removal of horse chestnut tree covered by TPO 07 (1974)

    57 Great North Road Brookmans Park Hatfield AL9 6LA

    Received 7 Apr 2017
  14. Decided - Granted6/2019/2757/ADV

    Installation of 1 x fascia non illuminated panel and 2 x mounted signs

    45 Town Centre Hatfield AL10 0JJ

    Received 1 Nov 2019
  15. Decided - Granted6/2022/0290/HOUSE

    Erection of two storey rear extension, installation of first floor side dormer and extension to existing dormer on north facing side elevation.

    33 The Avenue Welwyn AL6 0PW

    Received 8 Feb 2022
  16. Decided - Granted6/2020/1187/EM

    Erection of a single storey side and single storey, part two-storey rear extension

    75 The Commons Welwyn Garden City AL7 4RZ

    Received 27 May 2020
  17. Decided - Withdrawn6/2015/1605/LB

    Alterations to outbuildings and external works to Nast Hyde Barn

    Nast Hyde Barns Wilkins Green Lane Hatfield AL10 9RF

    Received 29 Jun 2015
  18. Decided - Granted6/2018/0741/HOUSE

    Erection of a front entrance porch, two storey rear extension and garage conversion into a playroom.

    2 Harmer Dell Welwyn AL6 0BE

    Received 19 Mar 2018
  19. Appeal Decided - DismissedW6/2013/2479/EM

    Alterations to extend existing hardstanding

    18 Fallowfield Welwyn Garden City AL7 1EE

    Received 19 Nov 2013
  20. Decided - Granted6/2024/0935/HOUSE

    Erection of a part single storey and part two storey rear extension and first floor side extension

    30 Wilshere Road Welwyn AL6 9PX

    Received 20 May 2024
  21. Decided - GrantedS6/2013/1184/FP

    Erection of a warehouse (use class B8), totalling 3768 square metres including ancillary office accommodation with car parking, lorry manoeuvring areas, loading and unloading facilities, cycle parking, boundary treatment, landscaping, lighting and access

    Plot 5600, Hatfield Business Park, Gypsy Moth Avenue, Hatfield, AL10 9BD

    Received 3 Jun 2013
  22. Decided - GrantedS6/2010/0095/DS

    DISCHARGE OF CONDITION 6 (LANDSCAPING) FROM PLANNING PERMISSION S6/2009/1680/FP

    44 HIGH ROAD, ESSENDON, HATFIELD, HERTFORDSHIRE, AL9 6HW

    Received 18 Jan 2010
  23. Decided - Granted6/2022/0659/EMT

    Reduce crown volume of 1 x Horse Chestnut 20% and remove epicormic growth from trunk Reduce crown volume by 20% of 1 x Apple. Prune harder on left to balance crown

    38 Parkway Welwyn Garden City AL8 6HQ

    Received 21 Mar 2022
  24. Decided - GrantedN6/2007/0991/AD

    ERECTION OF TEMPORARY SITE HOARDING WITH SALES LOGOS TO SITE FRONTAGE. INSTALLATION OF TEMPORARY SALES SIGN ERECTION OF TWO TEMPORARY FLAGPOLES WITH FLAGS

    Digswell Lodge Digswell Rise

    Received 2 Jul 2007

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