PlanningTrack
Get started

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
23,796Searchable applications
313Recorded as pending
86%Approval rate · 19,458 approved or refused records
2,709Refused applications

16,749 approved · 2,709 refused · 1,233 withdrawn. Received dates in our records: 5 Jan 2005 to 2 Oct 2026. Most recent record check: 14 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 Counts reflect the last collected status; some records may be out of date.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. Appeal Decided - Dismissed6/2019/2165/HOUSE

    Erection of front garden dwarf wall with steel railings and electric gates and installation of two new accesses following removal of existing

    Just House Coopers Lane Northaw Potters Bar EN6 4NJ

    Received 2 Sept 2019
  2. Decided6/2019/1750/TC

    Reduce 2 x Oak tree (T76 and T61) crowns by 2 metres (20%)

    Applecroft Primary School Applecroft Road Welwyn Garden City AL8 6LA

    Received 11 Jul 2019
  3. Decided - Granted6/2020/0826/FULL

    Erection of extension to care home to provide 6 additional bedrooms, a staff room and 3 parking spaces

    Oakview Lodge Princes Avenue Welwyn Garden City AL7 4DT

    Received 2 Apr 2020
  4. Decided - Granted6/2018/0728/MAJ

    Erection of a single storey side and rear extension and glazed link corridor to link existing buildings

    Heronswood Ponsbourne Park Newgate Street Hertford SG13 8QU

    Received 19 Mar 2018
  5. Decided - Granted6/2024/0837/VAR

    Variation of condition 6 (Approved Plans) on planning permission 6/2022/1754/FULL with alterations to raise ridge height

    Old Maypole House 43 Warrengate Road North Mymms Hatfield AL9 7TT

    Received 2 May 2024
  6. Decided - Refused6/2023/1015/LAWP

    Certificate of lawfulness for the installation of a hip to gable roof extension and construction of rear dormer window.

    4 Reynards Road Welwyn AL6 9TP

    Received 15 May 2023
  7. Decided - Granted6/2017/1296/HOUSE

    Erection of front porch, first floor side extension over existing swimming pool and two storey rear extension

    19 East Ridgeway Cuffley Potters Bar EN6 4AW

    Received 9 Jun 2017
  8. Decided - Granted6/2026/0261/COND

    Submission of details pursuant to Condition 1 (Arboricultural Method Statement) on planning permission 6/2025/2521/HOUSE

    10 Woodland Way Welwyn AL6 0RZ

    Received 16 Feb 2026
  9. Decided - Granted6/2024/0940/EM

    Erection of part single and part two storey rear extension following demolition of existing conservatory, single storey side extension following demolition of outbuilding

    11 Little Dell Welwyn Garden City AL8 7HZ

    Received 20 May 2024
  10. Decided - Granted6/2018/0147/PN8

    Prior approval for the erection of a single storey rear extension measuring 5.3m in depth, 3.1m in height and 3.036m to the eaves

    64 Stockbreach Road Hatfield AL10 0BE

    Received 15 Jan 2018
  11. Decided - Granted6/2021/1494/LAWP

    Certificate of lawfulness for a loft conversion

    55A Moffats Lane Hatfield AL9 7RT

    Received 11 May 2021
  12. Decided - Granted6/2021/3485/LAWP

    Certificate of lawfulness for proposed conversion of hipped roof to gable end with dormer to the rear elevation

    9 Selwyn Avenue Hatfield AL10 9NR

    Received 14 Dec 2021
  13. Decided - Granted6/2020/1639/HOUSE

    Erection of first floor front and part single part two storey rear extensions, porch alteration, roof alterations over garage and alterations to openings. Conversion of garage into habitable accommodation.

    14 Guessens Road Welwyn Garden City AL8 6QR

    Received 8 Jul 2020
  14. Decided - Refused6/2020/2044/HOUSE

    Erection of single storey front, rear and side extensions, increase in ridge height to facilitate a first floor extension and associated alterations

    53 Mardley Hill Welwyn AL6 0TT

    Received 13 Aug 2020
  15. Decided - Refused6/2016/2397/EM

    Fell Sorbus Whitebeam tree

    10 Fordwich Road Welwyn Garden City AL8 6EY

    Received 9 Nov 2016
  16. Decided - Granted6/2017/1169/COND

    Submission of details pursuant to condition 2(hard and soft landscape works) on planning permission 6/2016/1647/MAJ, dated 15/02/2017

    Encore House 51 Great North Road Hatfield AL9 5EN

    Received 26 May 2017
  17. Appeal Decided - Dismissed6/2022/1785/FULL

    Erection of a one-storey one bedroom dwelling

    Land adjacent to 26 Starling Lane Cuffley Potters Bar EN6 4JX

    Received 28 Jul 2022
  18. Decided - Granted6/2019/1912/EM

    Erection of brick wall following demolition of existing wall and installation of gate

    25 Birds Close Welwyn Garden City AL7 4AR

    Received 5 Aug 2019
  19. Decided - Refused6/2021/0625/EMT

    Fell 1 x Hornbeam tree

    6 Holly Walk Welwyn Garden City AL8 7EJ

    Received 25 Feb 2021
  20. Decided6/2024/0207/TC

    T1 Crab apple to fell to ground level. Reason: multiple brackets of Ganoderma fungus growing around the base of the tree.

    141 Parkway Welwyn Garden City AL8 6JB

    Received 1 Feb 2024
  21. Decided - Granted6/2019/0531/HOUSE

    Erection of detached annex to rear of existing property, following demolition of existing garage

    25 Great North Road Welwyn Garden City AL8 7TH

    Received 8 Mar 2019
  22. Decided - Refused6/2019/1180/HOUSE

    Erection of first floor side extension, single-storey front extension and repositioning of front entrance door with canopy over

    14 Guessens Road Welwyn Garden City AL8 6QR

    Received 15 May 2019
  23. Decided - Granted6/2023/2225/HOUSE

    Erection of single storey side/rear extension, part first floor rear extension with juliette balconies and alterations to openings to existing rear and side elevations

    6 Ashley Close Welwyn Garden City AL8 7LH

    Received 1 Nov 2023
  24. Decided - Granted6/2017/1630/TPO

    Reduce 2 x Ash trees by up to 30% covered by TPO 599 (2016)

    12 Marlborough Close Welwyn AL6 0UG

    Received 25 Jul 2017

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.

    UK research
    Published Updated

  • 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.

    UK research
    Published Updated

  • 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.

    UK research
    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.

Check collection coverage

More planning authorities in England

Browse all authorities