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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
21,679Searchable applications
297Recorded as pending
86%Approval rate · 17,558 approved or refused records
2,493Refused applications

15,065 approved · 2,493 refused · 1,112 withdrawn. Received dates in our records: 5 Jan 2005 to 30 Sept 2026. Most recent record check: 13 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 Counts reflect the last collected status; some records may be out of date.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. Decided6/2024/1347/TC

    T1- Scot’s Pine in the rear garden. Reduction of height by approximately 4m and width by 1m to create a new crown due to basal decay. Tree's location is close to houses making residents feel concerned about stem failure. Conservation of the tree is a priority

    1 The Limes Welwyn Garden City AL7 4BD

    Received 15 Jul 2024
  2. Decided - Refused6/2017/1520/HOUSE

    Erection of a single storey rear infill and first floor side extension.

    141 The Vineyard Welwyn Garden City AL8 7PX

    Received 13 Jul 2017
  3. Decided - Granted6/2026/1006/LAWP

    Certificate of lawfulness for the erection of a single-storey rear extension, removal of the chimney and associated internal alterations

    15 Worcester Road Hatfield AL10 0DU

    Received 8 Jun 2026
  4. Decided6/2025/1985/TC

    T01 - Prunus cerasifera 'Nigra' Crown reduction by 1m all around the outer parts to reduce the weight of the branches, maintain a balance shape cutting through small branches only

    4 Park Close Hatfield AL9 5AY

    Received 15 Sept 2025
  5. Appeal Decided - Dismissed6/2025/2623/HOUSE

    Replacement of an outbuilding (retrospective)

    Rose Cottage Kentish Lane Hatfield AL9 6JP

    Received 30 Dec 2025
  6. Decided - Granted6/2021/2948/LAWE

    Certificate of lawfuness for the existing use of land and buildings in connection with the occupation of a dwelling house for a period of more than 10 years.

    4 Barneswood Digswell Welwyn AL6 0EU

    Received 14 Oct 2021
  7. Decided6/2020/2211/EIA

    Request for a Scoping Opinion at the North Side of the Former Shredded Wheat Factory, Bridge Road, WGC.

    Former Shredded Wheat Factory Bridge Road Welwyn Garden City AL8 6UN

    Received 28 Aug 2020
  8. Decided - Withdrawn6/2018/1134/HOUSE

    Erection of first floor rear extension including installation of side window

    40 The Gardens, Brookmans Park, Hatfield, AL9 7UL

    Received 1 May 2018
  9. Decided - Granted6/2021/0911/HOUSE

    Retention of rear canopy extension

    18 Daisy Drive Hatfield AL10 9FR

    Received 22 Mar 2021
  10. Decided - Refused6/2021/2680/FULL

    Erection of new storage building to rear of existing building and creation of parking to front

    Clamcleats Ltd Watchmead Welwyn Garden City AL7 1AP

    Received 16 Sept 2021
  11. Decided - Granted6/2018/1998/LB

    Alterations to Mens and Disabled WC

    Mansion House North Mymms Park Tollgate Road North Mymms Hatfield AL9 7TR

    Received 26 Jul 2018
  12. Decided - Withdrawn6/2026/0429/COND

    Submission of details pursuant to condition number 2 (scheme for a noise limiting system) on planning permission 6/2018/3204/FULL

    North Mymms Park Tollgate Road North Mymms AL9 7TR

    Received 9 Mar 2026
  13. Decided - Granted6/2024/2357/HOUSE

    Erection of a single storey extension to the front and rear, and changes to fenestration including two new ground floor windows within the side elevation

    22 Grove Lea Hatfield AL10 8LA

    Received 9 Dec 2024
  14. Decided - Granted6/2021/2865/EMH

    Erection of a single storey rear extension involving demolition of existing detached outbuilding, garden wall and steps

    75 Monkswood Welwyn Garden City AL8 7EF

    Received 5 Oct 2021
  15. Decided - Granted6/2022/2828/LAWE

    Certificate of lawfulness for the existing class E use

    26-28 Hyde Way Welwyn Garden City AL7 3UQ

    Received 14 Dec 2022
  16. Decided6/2017/1291/TPO

    T2 Reduce crown of Beech tree by 20% and T3 Reduce crown of Cherry tree by 20% - Conservation Area

    Welwyn Parish Council Civic Centre Lockleys Drive Welwyn AL6 9NT

    Received 12 Jun 2017
  17. Decided - Granted6/2017/0932/HOUSE

    Erection of single storey rear extension and partial infill to front window

    229 Daniells Welwyn Garden City AL7 1QD

    Received 4 May 2017
  18. Decided - Granted6/2023/1012/HOUSE

    Retention of single storey front to side extension and two storey rear extension with conversion of roof from hipped to gable, installation of rear dormer and outbuilding with proposed alteration of first floor flat roof to gable roof, and installation of front boundary treatment

    4 Bramble Road Hatfield AL10 9SA

    Received 12 May 2023
  19. Decided - Granted6/2018/3141/LB

    Change of use from sui generis to residential including conversion of main building to create 4 x dwellings, internal alterations to enable subdivision, two storey rear extensions to create further 2 x dwellings following partial demolition, minor external alterations to all buildings, erection of car port with extended car parking area and associated landscaping and alterations including demolition of single storey extension and replacement with two storey extension to Little Guessens to form 1 x dwelling

    Guessens 6 Codicote Road Welwyn AL6 9NB

    Received 10 Dec 2018
  20. Decided - Withdrawn6/2019/0907/FULL

    Installation of kitchen extract and 1 no. ABS drinks machine condenser with associated duct work.

    Asda Superstore 98 Town Centre Hatfield AL10 0JP

    Received 15 Apr 2019
  21. Decided - Granted6/2023/0186/COND

    Submission of details pursuant to condition 6 (Noise) on planning permission 6/2017/1641/MAJ

    Onslow St Audreys School Old Rectory Drive Hatfield AL10 8AB

    Received 25 Jan 2023
  22. Decided - Granted6/2020/0452/EM

    Erection of timber shed with enclosure for keeping poultry

    14 Templewood Welwyn Garden City AL8 7HX

    Received 18 Feb 2020
  23. Decided - Granted6/2017/1603/TPO

    TPO34: T1: Hornbeam- 30% crown reduction, reshaping and thinning. Approx 5-6 Ft both sides and similar to the top. T1 and T2: Hornbeams 30% crown reduction, reshaping and thinning. Approx 5-6 Ft both sides and similar to the top. T3: Hornbeam to fell

    17 Turpins Ride Welwyn AL6 0QU

    Received 24 Jul 2017
  24. Decided - Granted6/2026/0126/MAJ

    Erection of 16 new dwellings with associated access, car parking and landscaping

    Land to the north east of King George V Playing Fields Northaw Road East Hertfordshire EN6 4RD

    Received 27 Jan 2026

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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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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