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
19,689Searchable applications
298Recorded as pending
86%Approval rate · 15,902 approved or refused records
2,218Refused applications

13,684 approved · 2,218 refused · 999 withdrawn. Received dates in our records: 5 Jan 2005 to 30 Sept 2026. Most recent record check: 12 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2022/1110/LAWP

    Certificate of lawfulness for the creation of rear dormers to existing roof

    16 Nimrod Drive Hatfield AL10 9LS

    Received 13 May 2022
  2. Decided - Granted6/2018/2158/TPO

    Various tree works to reduce and shape Yew, Lime, Ash, Oak, & Sycamore trees and remove Ash -Conservation area and Covered by TPO 510(2016) G1

    St Michaels And All Angels Church Mardleybury Road Woolmer Green Knebworth SG3 6JP

    Received 15 Aug 2018
  3. Decided - Granted6/2018/0905/HOUSE

    Erection of single storey front extension, partial single storey side extension, first floor side extension and enlargement of existing driveway

    79 Peplins Way Brookmans Park Hatfield AL9 7UT

    Received 3 Apr 2018
  4. Decided6/2022/2889/TC

    Removal of old apple tree as it is dangerous and at risk of falling

    26 Dellcott Close Welwyn Garden City AL8 7BD

    Received 21 Dec 2022
  5. Decided - Granted6/2024/0523/HOUSE

    Proposed alteration to fenestration to form double door opening

    4 Tolmers Mews Newgate Street Hertford SG13 8RG

    Received 18 Mar 2024
  6. Decided - Granted6/2021/2049/HOUSE

    Erection of a porch with pitched roof over bay window

    72 Bradmore Green Brookmans Park Hatfield AL9 7QT

    Received 6 Jul 2021
  7. Decided - Refused6/2021/3546/HOUSE

    Erection of a part single, part three storey front extension

    27 Great North Road Hatfield AL9 6LB

    Received 23 Dec 2021
  8. Decided - Granted6/2019/0693/EM

    Erection of single and two storey rear extensions, formation of driveway with alterations to openings

    18 Barleycroft Road Welwyn Garden City AL8 6JU

    Received 21 Mar 2019
  9. Decided - Granted6/2020/2104/HOUSE

    Single storey front and rear extensions following removal of rear conservatory and garage conversion

    17 Tolmers Gardens Cuffley Potters Bar EN6 4JE

    Received 20 Aug 2020
  10. Decided - Granted6/2020/0829/EM

    Erection of child play frame

    120 Handside Lane Welwyn Garden City AL8 6SZ

    Received 3 Apr 2020
  11. Decided - Refused6/2020/1043/HOUSE

    Proposal for two sliding vehicular gates and one pedestrian gate

    20 The Holdings Hatfield AL9 5HQ

    Received 11 May 2020
  12. Decided - Granted6/2023/0662/HOUSE

    Erection of single storey front extension following demolition of existing porch and single storey side to rear extension following demolition of existing garage

    42 Parsonage Lane Welham Green Hatfield AL9 7LU

    Received 24 Mar 2023
  13. Under Consultation6/2026/1541/HOUSE

    Proposed garden room with a canopy

    3 Longlands Road Welwyn Garden City AL7 3QD

    Received 3 Sept 2026
  14. Decided - Granted6/2024/0551/FULL

    Erection of three four-bedroom dwellings with associated car parking and landscaping

    Land adjacent to Bell Lane Bell Bar The Brookmans Park Estate AL9 7AY

    Received 20 Mar 2024
  15. Decided - Granted6/2019/2317/VAR

    Variation of condition (Plans) on planning permission 6/2018/0235/FULL

    28-60 Guessens Grove Welwyn Garden City AL8 6RF

    Received 19 Sept 2019
  16. Decided - Granted6/2026/0399/COND

    Submission of details pursuant to condition number 1 (Construction Management Plan) on planning permission 6/2024/2237/VAR

    Land adjacent to The Warren 8 Carbone Hill Northaw Potters Bar EN6 4PL

    Received 4 Mar 2026
  17. Decided - Granted6/2018/0881/EM

    Formation of front hardstanding and removal of part of side hedge as well as the erection of a graduated retaining wall

    173 Parkway Welwyn Garden City AL8 6JA

    Received 4 Apr 2018
  18. Decided - Granted6/2021/1280/COND

    Submission of details pursuant to condition number 2 (Site Waste Management Plan) on planning permission 6/2019/2430/MAJ.

    1 and 1a and 3-9 Town Centre Hatfield AL10 0JZ

    Received 21 Apr 2021
  19. Decided - Refused6/2019/1764/COND

    Submission of details pursuant to condition 3 (Construction Method Statement) on planning permission 6/2017/0848/MAJ

    Entech House London Road Woolmer Green SG3 6JE

    Received 17 Jul 2019
  20. Decided - Refused6/2022/1256/HOUSE

    Retention of single storey front and rear extension and outbuilding, and proposed increase in roof height, amendments to roof form and installation of two side dormers to facilitate conversion of loft into habitable space

    13 Plough Hill Cuffley Potters Bar EN6 4DN

    Received 27 May 2022
  21. Decided - Withdrawn6/2018/2062/EM

    Erection of part single part two storey rear and side extension

    50 Marley Road Welwyn Garden City AL7 4BS

    Received 6 Aug 2018
  22. Appeal Decided - Dismissed6/2024/0126/HOUSE

    Erection of a ground floor rear extension, installation of new dormer window to rear elevation, replacement of existing window reveal detailing, removal of existing front door and porch and installation of new window, reinstatement of original front door, replacement of timber windows to match original, blocking up existing window on side elevation at first floor level, alterations to window sizes on rear elevation at first floor level, installation of velux rooflight and internal alterations

    8 High Road Essendon Hatfield AL9 6HW

    Received 22 Jan 2024
  23. Decided - Granted6/2019/0352/EM

    Erection of part two storey, part single storey rear and single storey side extensions

    1 The Links Welwyn Garden City AL8 7DS

    Received 14 Feb 2019
  24. Decided - Granted6/2026/0219/LAWP

    Certificate of lawfulness for the proposed erection of front porch

    59 Haseldine Meadows Hatfield AL10 8HA

    Received 9 Feb 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.

    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