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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
30,830Searchable applications
303Recorded as pending
87%Approval rate · 25,674 approved or refused records
3,374Refused applications

22,300 approved · 3,374 refused · 1,640 withdrawn. Received dates in our records: 29 Apr 1948 to 13 Oct 2026. Most recent record check: 19 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 Counts reflect the last collected status; some records may be out of date.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 - Withdrawn6/2023/2089/HOUSE

    Erection of a front porch, front to rear, part subterranean and two storey rear extension with increase in roof height and installation of two dormers on each side roofslope

    Freny Cottage 41 Northaw Road East Cuffley Potters Bar EN6 4LU

    Received 13 Oct 2023
  2. Decided - Granted6/2025/1296/FULL

    Repositioning of the portakabin buildings and minor alterations to openings

    Applecroft Primary School Applecroft Road Welwyn Garden City AL8 6JZ

    Received 20 Jun 2025
  3. Decided - Granted6/2018/0223/ADV

    Installation of 2 x non-illuminated fascia signs - part retrospective

    Panshanger Dental Practice 55 Moors Walk Welwyn Garden City AL7 2AX

    Received 24 Jan 2018
  4. Appeal Decided - Dismissed6/2015/2060/EM

    Replacement of doors

    124 Sweet Briar, Welwyn Garden City, AL7 3EA

    Received 5 Oct 2015
  5. Decided - Granted6/2022/2305/LAWP

    Certificate of lawfulness for erection of detached outbuilding

    2 Indells Hatfield Hertfordshire AL10 9JA

    Received 3 Oct 2022
  6. Decided - Granted6/2017/1287/EM

    Erection of a first floor rear extension

    8 Longcroft Lane Welwyn Garden City AL8 6EA

    Received 9 Jun 2017
  7. Decided - Granted6/2021/0973/FULL

    New external windows to the north and west elevations and the installation of a condenser unit

    Aquarius House Bessemer Road Welwyn Garden City AL7 1HH

    Received 25 Mar 2021
  8. Decided - Refused6/2023/1575/HOUSE

    Erection of two storey rear and side extension with formation of basement plant room with storage within the rear extension. Proposed loft conversion with front and rear dormers, installation of air source heat pump and solar panels and alterations to the fenestration

    20 Bell Lane Hatfield AL9 7AY

    Received 31 Jul 2023
  9. Under Consideration6/2026/1489/LAWP

    Certificate of lawfulness for the erection of an outhouse to accommodate gym facilities

    23 The Ridgeway Potters Bar EN6 4BB

    Received 24 Aug 2026
  10. Decided - Withdrawn6/2020/0166/TPO

    Pollard 1x Willow tree by 1.5m Fell 1x Ash tree

    59 Tolmers Road Cuffley Potters Bar EN6 4JG

    Received 23 Jan 2020
  11. Decided - Refused6/2016/0186/HOUSE

    Replacement of very poor conditioned grass area in front of property with quality artificial grass and area involved 15 sq metres.

    107 Parkway, Welwyn Garden City, AL8 6JD

    Received 2 Feb 2016
  12. Decided - GrantedS6/2014/0440/FP

    Erection of single storey side extension

    32 Clarkes Road Hatfield AL10 0HL

    Received 3 Mar 2014
  13. Decided - Refused6/2020/1211/HOUSE

    Formation of new vehicular access following removal of existing close-boarded fence and erection of post and rail boundary fence and hedge with timber gate

    Northaw Place Coopers Lane Northaw Potters Bar EN6 4NQ

    Received 1 Jun 2020
  14. Decided - Granted6/2021/2606/LAWE

    Certificate of lawfulness for the existing use as a cycle shop

    20 Hall Grove Welwyn Garden City AL7 4PH

    Received 7 Sept 2021
  15. Decided - GrantedN6/2014/1741/FP

    Additional external car parking

    East Of England Ambulance Services Ascots Lane Welwyn Garden City AL7 4HL

    Received 1 Aug 2014
  16. Decided - Granted6/2019/2508/EM

    Reduce 1 x Apple tree by by 20%

    370 Knightsfield Welwyn Garden City AL8 7NG

    Received 8 Oct 2019
  17. Decided - Refused6/2021/1152/PN15

    Prior approval for a proposed telecommunications upgrade. Existing MBNL 15.0m High Hutchinson Engineering Phase 5 Streetpole. Proposed MBNL 20.0m High Valmont Slimline Monopole to be installed on new concrete foundation and associated ancillary works.

    DNS Cole Green Lane Cole Green Lane Welwyn Garden City Hall Grove AL7 3DQ

    Received 8 Apr 2021
  18. Decided - Granted6/2019/1874/HOUSE

    Erection of single storey rear extension

    64 Gorseway Hatfield AL10 9GS

    Received 31 Jul 2019
  19. Decided - GrantedC6/1988/0241/FP

    Two storey side and single storey front extension; front extension to garage

    19 Digswell Park Road, Welwyn Garden City, AL8 7NW

    Received 1 Jan 1988
  20. Decided - Granted6/2022/1763/TPO

    T1 - English Oak - reduce crown of tree by 2m.

    22 Bracken Lane Welwyn Hertfordshire AL6 0RB

    Received 27 Jul 2022
  21. Decided - Granted6/2018/0244/TPO

    Fell 1x Ash in conservation area

    7 Sheepcote Welwyn Garden City AL7 4QA

    Received 18 Jan 2018
  22. Decided - Refused6/2019/2286/LAWP

    Certificate of lawfulness for the erection of front porch extension, part single and double storey rear extension, alterations to openings and removal of existing rear chimney

    12 Longlands Road Welwyn Garden City AL7 3QB

    Received 16 Sept 2019
  23. Decided - GrantedC6/1988/0246/FP

    Two storey and single storey rear extension

    1 Hillside, Welwyn Garden City, AL7 4PZ

    Received 1 Jan 1988
  24. Decided - Granted6/2016/0632/HOUSE

    Erection of a two storey side extension and alterations to openings

    83 Park Meadow, Hatfield, AL9 5HB

    Received 6 Apr 2016

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

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    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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