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
40,115Searchable applications
300Recorded as pending
86%Approval rate · 33,648 approved or refused records
4,801Refused applications

28,847 approved · 4,801 refused · 2,205 withdrawn. Received dates in our records: 29 Apr 1948 to 26 Oct 2026. Most recent record check: 30 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2023/1019/EMT

    Reduce sycamore tree by 30%

    33 Howicks Green, Welwyn Garden City, AL7 4RJ

    Received 15 May 2023
  2. Decided - Refused6/2026/0872/LAWE

    Certificate of lawfulness for an existing garage conversion being used as a home office with alterations to the front elevation and erection of storage shed (side/rear extension)

    34 Brookside Crescent Cuffley Potters Bar EN6 4QN

    Received 18 May 2026
  3. Decided - Granted6/2018/1670/EM

    Fell T1 1x Whitebeam, T3 1x Plum and T2 1x Apple

    24 Vine Close Welwyn Garden City AL8 7PS

    Received 25 Jun 2018
  4. Decided - Refused6/2015/1841/EM

    Replacement of windows

    125 Knightsfield, Welwyn Garden City, AL8 7JD

    Received 1 Sept 2015
  5. Decided - Granted6/2016/1060/HOUSE

    Erection of double storey side and rear extension, part single storey rear extension, front porch, alterations to existing window openings, replacement of windows and new patio to the rear

    16 Bradgate, Cuffley, Potters Bar, EN6 4RL

    Received 31 May 2016
  6. DecidedS6/2015/0164/CD

    Display Rights of Way application

    Byway from, Woodcock Hill to Green Lanes, Sandridge, St Albans, AL4 9HJ

    Received 23 Jan 2015
  7. Decided - Granted6/2015/2315/FULL

    Conversion of existing roof space to habitable space, insertion of windows, door and roof lights to Nisa Store and alterations to Post Office building

    179 Handside Lane, Welwyn Garden City, AL8 6TA

    Received 13 Nov 2015
  8. Decided - GrantedS6/2004/0738/FP

    ERECTION OF SINGLE STOREY REAR EXTENSION TO REPLACE EXISTING GARAGE AND UTILITY ROOM

    6 Sunnyfield Hatfield AL9 5DX

    Received 17 May 2004
  9. Decided - GrantedN6/2008/1077/DS

    DISCHARGE OF CONDITION 4 OF PLANNING PERMISSION N6/2008/0579/FP (FOUNDATION DETAILS)

    168 Parkway, Welwyn Garden City, AL8 6HZ

    Received 17 Jul 2008
  10. Decided - Granted6/2019/1047/EM

    Erection of a single storey side/rear extension and detached storage cupboard, following demolition of existing garden shed

    10 Broadfield Place Welwyn Garden City AL8 6LJ

    Received 30 Apr 2019
  11. Decided - GrantedN6/2004/1205/FP

    ERECTION OF SINGLE STOREY REAR AND SIDE EXTENSION

    34 Canonsfield Road Welwyn AL6 0QH

    Received 5 Aug 2004
  12. Decided - WithdrawnS6/2013/1704/TC

    Remove fallen Yew tree and prune second Yew and Walnut tree laterally by 2 metres, fell Cherry tree and crown thin second Walnut tree and remove all dead branches

    The Orchard, Hatfield Park, Great North Road, Hatfield, AL9 5NB

    Received 5 Aug 2013
  13. Decided - Granted6/2020/1135/EMT

    Reduce 1 x Beech Tree by 3m Fell 1 x Deodar Cedar Tree Fell 2 x Lawson Cypress Trees Fell 1 x Yew Tree Fell 2 x Western Red Cedar Tress Reduce 1 x Copper Beech Tree by 4m

    10 Mannicotts Welwyn Garden City AL8 7BW

    Received 19 May 2020
  14. Decided - Granted6/2018/2454/FULL

    Internal alteration to the subdivision between two existing shops (A1) and demolition of the existing garages to provide open parking spaces in the rear yard

    179 Handside Lane Welwyn Garden City AL8 6TA

    Received 25 Sept 2018
  15. Decided - Refused6/2024/0916/HOUSE

    Erection of a single storey rear/side extension following the demolition of outbuilding, installation of rear facing dormer and rooflight to facilitate loft conversion, timber gate and glazed canopy to side access, replacement of window for door

    196 Handside Lane Welwyn Garden City AL8 6TD

    Received 16 May 2024
  16. Decided - Granted6/2019/2206/EM

    Erection of single storey side and rear extension following demolition of conservatory

    28 Lemsford Lane Welwyn Garden City AL8 6YJ

    Received 5 Sept 2019
  17. Decided - GrantedS6/2009/0323/DT

    REPLACE EXISTING COLUMN WITH 12M TELECOMMUNICATIONS POLE, EQUIPMENT CABINET AND ELECTRICAL FEEDER PILLAR

    SOUTHWAY, HATFIELD, HERTFORDSHIRE, AL10 8TG

    Received 16 Feb 2009
  18. Decided6/2024/0421/TC

    1 x Lombardy Poplar to reduce back to previous pruning points (approximately 4-5m in height) as tree is close to property with a large amount of regrowth

    29 Springfields Welwyn Garden City AL8 6XS

    Received 4 Mar 2024
  19. Decided - GrantedC6/1988/1235/FP

    Erection of six 16.5 metre high floodlighting columns

    Handside Lane Playing Fields, Welwyn Garden City, AL8 6SE

    Received 1 Jan 1988
  20. Decided - GrantedN6/2014/0564/HH

    Prior approval for the erection of single storey rear extension

    49 Great North Road Welwyn Garden City AL8 7TJ

    Received 21 Mar 2014
  21. Decided - Granted6/2016/1796/HOUSE

    Replacement of garage door

    11 Wilkins Grove, Welwyn Garden City, AL8 6JS

    Received 1 Sept 2016
  22. Decided - GrantedN6/2013/1707/FP

    Erection of single storey building for home office use

    70A Sweet Briar, Welwyn Garden City, AL7 3EA

    Received 5 Aug 2013
  23. Decided - GrantedS6/2014/0898/NM

    Non material amendment following approval of planning permission S6/2013/1564/FP - Reduction in the protection of the garage extension at the front elevation

    28 Station Road Welham Green Hatfield AL9 7PG

    Received 2 May 2014
  24. Decided - Granted6/2026/0097/TPO

    T1 x Sweet chestnut to reduce by around 3m in height and 1.5-2m width

    20 Mardley Hill Welwyn AL6 0TS

    Received 22 Jan 2026

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

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Researching a proposal in Welwyn Hatfield Borough Council

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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