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England · Local authority

Welwyn Hatfield Borough Council
Planning applications.

Explore collected planning applications and decisions for Welwyn Hatfield Borough Council. Search an address, application reference or proposal to find a record.

Collected application statistics

Collected records · All available dates
30,356Searchable applications
303Recorded as pending
87%Approval rate · 25,240 approved or refused records
3,340Refused applications

21,900 approved · 3,340 refused · 1,616 withdrawn. Received dates in our records: 29 Apr 1948 to 13 Oct 2026. Most recent record check: 18 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 Counts reflect the last collected status; some records may be out of date.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 - Withdrawn6/2018/1897/LAWLB

    Certificate of lawfulness for the proposed work to listed building to include works to replace one structural beam and support an existing second beam, connected to the first, with a proprietary steel support

    Bush Hall Hotel Chequers Mill Green Hatfield AL9 5NT

    Received 26 Jun 2018
  2. Decided - Granted6/2015/2466/HOUSE

    Erection of double storey rear extension

    72 New Park Road, Newgate Street, Hertford, SG13 8RF

    Received 14 Dec 2015
  3. Decided - Granted6/2022/0444/HOUSE

    Raising height of eaves of existing detached garage.

    Sawmill Cottage Waterend Lane Ayot St Peter Welwyn AL6 9BB

    Received 24 Feb 2022
  4. Decided - Withdrawn6/2022/1989/EMT

    Remove two large Norway Spruce and one Cherry tree - Spruce trees are far too big for the garden and unmanageable. The roots are causing significant damage to the shed and the pathway surrounding the trees. The cherry tree is in poor condition and perhaps in decline.

    13 Beechfield Road Welwyn Garden City AL7 3RG

    Received 25 Aug 2022
  5. Decided - GrantedN6/2015/0942/FP

    Erection of single storey rear extension and new garage following demolition of existing sun room and garage

    26 Brockswood Lane, Welwyn Garden City, AL8 7BG

    Received 1 May 2015
  6. Decided6/2020/2913/TC

    Fell 1 x cherry tree in garden. Evergreen shrubs to be planted 2m by 2m by fence to provide privacy.

    3 Fordwich Road Welwyn Garden City AL8 6EX

    Received 9 Nov 2020
  7. Decided - GrantedN6/2014/0712/TC

    Reduce Willow and crown thin by upto 20%, reduce Ash tree to 25% plus lift one Conifer tree over hedge perimeter and include a further 4 Conifer trees for annual reduction

    45 Digswell Rise, Welwyn Garden City, AL8 7PP

    Received 12 Feb 2014
  8. Decided - Granted6/2020/3383/PN8

    Prior Approval for the erection of a single storey rear extension with associated internal alteration measuring 4.00m in depth, 3.00m in height and 2.80m to the eaves.

    85 Wellfield Road Hatfield AL10 0BY

    Received 16 Dec 2020
  9. Decided - Granted6/2021/2063/FULL

    Erection of single storey extension to form exercise corridor

    8 Manor Parade Hatfield AL10 9JS

    Received 8 Jul 2021
  10. DecidedS6/2014/1618/TP

    Works to trees covered by TPO8 A1 (see attached schedule)

    Gresley Court, Little Heath, Potters Bar, EN6 1LF

    Received 16 Jul 2014
  11. Decided - Granted6/2022/1448/EM

    Part front porch infill and garage conversion, single storey rear extension, insertion of roof lights into the rear pitched roof

    37 Digswell Road, Welwyn Garden City, AL8 7PB

    Received 22 Jun 2022
  12. Decided - Granted6/2021/2452/HOUSE

    Conversion of garage to habitable use to include alterations to fenestration

    8 Ellesfield Welwyn AL6 9HB

    Received 23 Aug 2021
  13. Decided - Granted6/2018/1006/HOUSE

    Erection of a single storey rear extension

    10 Hornsfield Welwyn Garden City AL7 2DX

    Received 18 Apr 2018
  14. Decided - Refused6/2016/2247/FULL

    Erection of a timber decked external area with a pergotenda, insertion of bi-fold doors and replacement of extractor fan in kitchen.

    The Mayflower Sloansway Welwyn Garden City AL7 1NB

    Received 26 Oct 2016
  15. Decided - Granted6/2022/1602/HOUSE

    Erection of a single storey front extension; part single and part two storey rear extension; and insertion of first floor flank window.

    65 Crawford Road Hatfield AL10 0PF

    Received 7 Jul 2022
  16. Decided - Granted6/2023/0219/TPO

    45ft Oak tree to reduce by 30% and remove major deadwood - significant deadwood in the canopy - reduction to re-balance the tree and prevent from future limb failure. Tree covered by TPO 919 (2018)

    34 Carleton Rise Welwyn AL6 9RF

    Received 30 Jan 2023
  17. Decided - Granted6/2017/0782/COUNTY

    Installation of a 6 bay double modular classroom building

    Peartree Primary School Peartree Lane Welwyn Garden City AL7 3XW

    Received 12 Apr 2017
  18. Decided6/2026/0528/TC

    T4 Hawthorn to reduce by 4m. T5 & T6 Ash to fell. T7 Ash to fell. T8 Goat willow to remove hung up branches.

    Access Road North Off Great Dell to Great Dell Scout Hall Welwyn Garden City AL8 7HY

    Received 23 Mar 2026
  19. Decided - Granted6/2022/2917/TPO

    Pine tree in front garden rotten and beginning to fall. Plan to cut down to the root and remove. TPO 141 T14

    86 Bell Lane Brookmans Park AL9 7AY

    Received 29 Dec 2022
  20. Decided - Granted6/2015/2525/HOUSE

    Erection of two storey front extension, single storey rear extension involving demolition of existing conservatory

    41 Oaklands Avenue, Brookmans Park, Hatfield, AL9 7UH

    Received 23 Dec 2015
  21. Decided - Granted6/2016/1690/ADV

    Installation of aluminium tray panels, illuminated/non-illuminated and free standing/wall mounted

    168 Great North Road Hatfield AL9 5JN

    Received 18 Aug 2016
  22. Decided - Split6/2017/1939/COND

    Submission of details pursuant to condition 1 (landscaping) & 3 (access) on planning permission 6/2017/0226/HOUSE

    311 St Albans Road West Hatfield AL10 9RJ

    Received 30 Aug 2017
  23. Decided - RefusedS6/2013/2259/FP

    Replacement dwelling

    95 Brookmans Avenue, Brookmans Park, Hatfield, AL9 7QG

    Received 25 Oct 2013
  24. Decided - Granted6/2018/2602/HOUSE

    Erection of two storey front extension, part single, part two storey rear extension and installation of rear dormers to facilitate a loft conversion

    76 George's Wood Road Brookmans Park Hatfield AL9 7BU

    Received 10 Oct 2018

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

View all applications

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.

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  • 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.

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  • 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.

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    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.

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