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
38,679Searchable applications
335Recorded as pending
86%Approval rate · 32,329 approved or refused records
4,621Refused applications

27,708 approved · 4,621 refused · 2,100 withdrawn. Received dates in our records: 29 Apr 1948 to 20 Oct 2026. Most recent record check: 27 Oct 2026. Counts reflect the last collected status; some records may be out of date.

Local planning information

Council sources checked 14 Sept 2026

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 - Withdrawn6/2025/2459/LAWP

    Certificate of lawfulness for extension to the rear of the property, as shown in the drawings. Replacement of existing fencing to rear of property

    127 Guessens Road Welwyn Garden City AL8 6RR

    Received 24 Nov 2025
  2. Decided - GrantedN6/2007/1847/FP

    ERECTION OF NEW CHALET BUNGALOW FOLLOWING DEMOLITION OF EXISTING BUNGALOW AND DETACHED GARAGE

    10 Oaklea Welwyn AL6 0PU

    Received 14 Dec 2007
  3. Decided - Granted6/2021/1117/EMT

    Reduce 1 x Cherry Plum by 1.5m height and width and 1 x Wild Plum to fell to ground level

    41 Rosedale Welwyn Garden City AL7 1DW

    Received 6 Apr 2021
  4. Decided6/2021/1698/TC

    Crown reduce purple plum by 3m Re-pollard hawthorn by 3m

    34 Fordwich Road Welwyn Garden City AL8 6EY

    Received 27 May 2021
  5. Decided - Granted6/2022/0851/HOUSE

    Erection of single storey rear extension, with insertion of roof lights, removal of balcony and addition of Juliette balcony

    9 Groom Place Welwyn Garden City Hertfordshire AL7 1GG

    Received 7 Apr 2022
  6. Decided - GrantedN6/2008/1106/AD

    INSTALLATION OF NON ILLUMINATED FASCIA SIGN

    8 HOWARDSGATE, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 6BH

    Received 4 Jul 2008
  7. Decided - Withdrawn6/2020/1791/EM

    Erection of Outbuilding to rear following demolition of shed

    19 Purdom Road Welwyn Garden City AL7 4FH

    Received 21 Jul 2020
  8. Decided - RefusedW6/2007/1483/EM

    ERECTION OF TWO STOREY SIDE EXTENSION FOLLOWING DEMOLITION OF EXISTING GARAGE

    16 The Paddocks, Welwyn Garden City, AL7 2BP

    Received 11 Oct 2007
  9. Decided - Granted6/2026/0995/PN8

    Prior approval for a single storey rear extension measuring 4m in depth, 2.2m to the eaves and the maximum height of 3.6m

    2 Corner View Welham Green Hatfield AL9 7DH

    Received 5 Jun 2026
  10. Decided - GrantedN6/2014/2603/FP

    Demolition of garage and erection of single storey and two storey side extension

    43 Warren Way Digswell Welwyn AL6 0DQ

    Received 27 Nov 2014
  11. Decided - Granted6/2023/1573/LAWE

    Certificate of lawfulness for the continued use of the static home as a single stand-alone dwelling on a permanent basis

    Woodhurst Farm Cattlegate Road Northaw Potters Bar EN2 8AU

    Received 28 Jul 2023
  12. Decided - GrantedW6/2014/2710/EM

    Erection of a single storey side and rear extensions following the demolition of existing garage and conservatory. Installation of replacement windows and removal of ornamental tree within the rear garden

    4 Nut Grove, Welwyn Garden City, AL8 7SQ

    Received 19 Dec 2014
  13. Decided - Granted6/2021/1843/HOUSE

    Erection of single storey rear extension.

    16 Picketts Welwyn Garden City AL8 7HJ

    Received 15 Jun 2021
  14. Decided - GrantedS6/2013/1373/FP

    Conversion of an existing barn/agricultural storage building to a residential dwelling and refurbishment of existing livery stables and stores

    Windmill Farm, Ponsbourne Park, Newgate Street Village, Hertford, SG13 8NH

    Received 2 Jul 2013
  15. Decided - Granted6/2021/0501/HOUSE

    Erection of of rear conservatory.

    53 Mymms Drive Brookmans Park AL9 7AE

    Received 16 Feb 2021
  16. Decided6/2021/1447/TC

    T1-5 Conifers - fell T6 Willow - reduce crown by third

    45 Digswell Rise Welwyn Garden City AL8 7PP

    Received 5 May 2021
  17. Decided - Granted6/2015/2416/MAJ

    Proposed two storey office (B1a) use and general industrial (B2) use and storage and distribution (B8) use on former equestrian land as permitted and commenced under planning permission N6/1993/0244/OP

    The Holdings, Cole Green Lane, Welwyn Garden City

    Received 4 Dec 2015
  18. Decided - GrantedS6/2015/1317/AD

    Installation of non illuminated banner sign

    51 Pine Grove, Hatfield, AL9 7BL

    Received 22 Jun 2015
  19. Decided - GrantedW6/2008/1326/EM

    RETENTION OF GRAVEL HARDSTANDING WITH ASSOCIATED LANDSCAPING

    72 PEARTREE LANE, WELWYN GARDEN CITY, HERTFORDSHIRE, AL7 3UH

    Received 1 Aug 2008
  20. Decided - Granted6/2019/0717/HOUSE

    Erection of single and two storey rear extensions , formation of driveway with alterations to openings

    18 Barleycroft Road Welwyn Garden City AL8 6JU

    Received 26 Mar 2019
  21. Decided - Granted6/2024/1274/HOUSE

    Erection of single storey front extension

    6 Great North Road Welwyn AL6 0PL

    Received 5 Jul 2024
  22. Decided - Withdrawn6/2016/2604/LAWP

    Certificate of lawfulness for the erection of a single storey rear extension

    84 Pine Grove Brookmans Park Hatfield AL9 7BW

    Received 7 Dec 2016
  23. Decided - WithdrawnS6/2014/1888/LB

    Proposed granny annexe to first floor of existing stable block

    Holwell Manor, Holwell Lane, Essendon, Hatfield, AL9 5RG

    Received 26 Aug 2014
  24. Decided - Granted6/2021/3483/TPO

    T1-Oak Crown raise lower laterals on western side to a height of 6m so as to give a 3m clearance to the adjacent rear extension. Also, carry out a 15-20% crown thin to reduce the wind-sail and remove any deadwood. The tree is currently causing excessive shading to the property and detritus and dead branches are falling on to the roof of the extension. The works will be undertaken in accordance with BS3998:2010. TPO 842 (2018)

    52 Bridge Road Welwyn Garden City AL8 6UR

    Received 14 Dec 2021

Records are ordered by application ID, not submission date. Use search to find a particular address or proposal.

View all applications

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.

  • 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.

  • 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.

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