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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
29,253Searchable applications
307Recorded as pending
87%Approval rate · 24,269 approved or refused records
3,239Refused applications

21,030 approved · 3,239 refused · 1,554 withdrawn. Received dates in our records: 1 Nov 1999 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2024/2022/COND

    Submission of details pursuant to condition Condition 2 (Surface Water Drainage) on planning permission 6/2020/3418/MAJ

    Sandyhurst 1 Welwyn By Pass Road Welwyn AL6 9HT

    Received 21 Oct 2024
  2. Decided - Granted6/2022/2295/EMT

    Removal of 3 conifers in the bottom corner of rear garden.

    6 Greenfield Welwyn Garden City AL8 7HW

    Received 3 Oct 2022
  3. Decided - Granted6/2019/0149/EM

    Reduce crown of 1 x Lime tree back to previous cut, approx 7-8 feet reduction

    128 Handside Lane Welwyn Garden City AL8 6SZ

    Received 24 Jan 2019
  4. Decided - Granted6/2023/0457/HOUSE

    Erection of single storey rear extension with Spa Unit and alterations to existing rear balcony.

    Cedar House Essendon Place High Road Essendon Hatfield AL9 6GZ

    Received 28 Feb 2023
  5. Decided - Granted6/2016/2624/FULL

    Change of use from B1(a) office to C3 residential, construction of roof and side extensions, creation of 43 residential apartments and cycle storage compound

    Mercury House 1 Broadwater Road Welwyn Garden City AL7 3BQ

    Received 12 Dec 2016
  6. Decided - Granted6/2016/2075/TPO

    Reduce sycamore tree in the rear garden by 20%, fell Eucalyptus tree in rear garden and fell Apple tree in the rear garden - Conservation Area

    35 High Oaks Road, Welwyn Garden City, AL8 7BT

    Received 26 Sept 2016
  7. Decided - Granted6/2017/2812/HOUSE

    Erection of single storey rear extension with glass canopy to side, part garage conversion, alterations to existing side windows and side dormer and installation of 2 x dormers and 1 x rooflight to facilitate loft conversion

    14 Roundwood Drive Welwyn Garden City AL8 7JZ

    Received 30 Nov 2017
  8. Decided - Refused6/2022/1666/HOUSE

    Erection of porch, single storey rear extension and hip to gable loft conversion with front and rear dormers

    20 Oaklands Avenue Brookmans Park Hatfield AL9 7UJ

    Received 14 Jul 2022
  9. Decided - Granted6/2026/0284/HOUSE

    Part single storey, part first floor and part two storey side and rear extensions and installation of rooflights

    48 Wilshere Road Welwyn AL6 9PX

    Received 19 Feb 2026
  10. Decided - Granted6/2025/1786/EMT

    T1 Oak, crown reduction of approximately 3 to 4 meters on the four most prominent sections of the crown growing in the direction of the house. T2 Cherry, crown reduction of approximately 15 feet (around 4.5 meters).

    44 Sherrardspark Road Welwyn Garden City AL8 7LB

    Received 22 Aug 2025
  11. Decided - Granted6/2025/1556/COND

    Submission of details pursuant to condition 2 (Methodology of repairs) on listed building consent 6/2024/1489/LB

    41 High Street Welwyn AL6 9EF

    Received 18 Jul 2025
  12. Decided - Granted6/2026/0521/EMT

    1 x Hawthorn to reduce by 2 meters in height and 1.5 metres in width Outgrown canopy impending on other trees. Reduce to allow light to other tree and plants

    3 Rosedale Welwyn Garden City AL7 1DW

    Received 20 Mar 2026
  13. Decided - Granted6/2018/2792/TPO

    Reduce 1 x Pinus (Pine) tree by 1.5-2m, cutting back to nearest suitable growing point - covered by TPO 550 (2016)

    122 Dixons Hill Road Welham Green Hatfield AL9 7DN

    Received 30 Oct 2018
  14. Appeal Decided - AllowedN6/2014/1785/FP

    Erection of two storey side extension

    16 Turpins Chase Welwyn AL6 0RA

    Received 8 Aug 2014
  15. Decided - Granted6/2020/3176/EMT

    Re-pollarding of Oak Tree- Pruning back to previous pruning points

    1 Guessens Walk Welwyn Garden City AL8 6QS

    Received 25 Nov 2020
  16. Decided - Granted6/2022/2064/HOUSE

    Erection of a first floor side extension

    76 Longcroft Lane Welwyn Garden City AL8 6EF

    Received 5 Sept 2022
  17. Decided - Granted6/2025/0855/FULL

    Erection of agricultural barn structure, and associated landscaping and works

    Boltons Park Farm 44 Hawkshead Road Little Heath Potters Bar EN6 1NB

    Received 7 May 2025
  18. Decided - Granted6/2022/2059/HOUSE

    Erection of single storey rear extension and installation of accessible ramps to front and rear gardens

    9 Lamb Close Hatfield AL10 8PS

    Received 5 Sept 2022
  19. Decided - Granted6/2017/0387/HOUSE

    Erection of single storey, part two storey and part first floor front extension, front porch canopy and first floor rear extension, to include replacement of existing flat roof and alterations to existing openings

    45 Stag Green Avenue Hatfield AL9 5EB

    Received 1 Mar 2017
  20. Decided - GrantedS6/2014/1811/FP

    Erection of two storey side replacement structure following demolition of existing single storey side structure

    Hill House, West End Lane, Essendon, Hatfield, AL9 6AT

    Received 12 Aug 2014
  21. Decided - Granted6/2021/1767/FULL

    Insertion of kitchen extract duct and AC equipment

    4-6 Howardsgate Welwyn Garden City AL8 6BQ

    Received 7 Jun 2021
  22. Decided - GrantedW6/2013/1360/TE

    40% Crown reduction of cherry tree located in rear garden

    130 Howlands, Welwyn Garden City, AL7 4RG

    Received 25 Jun 2013
  23. Decided - Granted6/2025/2101/FULL

    Erection of replacement entrance following the demolition and removal of existing entrance lobby

    University Of Hertfordshire College Lane Campus College Lane Hatfield AL10 9AB

    Received 2 Oct 2025
  24. Decided - WithdrawnN6/2015/1461/LAWP

    Certificate of lawfulness for the continued principle use as a drinking establishment (A4) with 3No. ancillary staff suites and 10No. ancillary guest rooms and the interchanging of obscure and un-obscure glazing panels

    The Peartree Hollybush Lane Welwyn Garden City AL7 4JJ

    Received 8 Jul 2015

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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