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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
21,182Searchable applications
298Recorded as pending
86%Approval rate · 17,107 approved or refused records
2,422Refused applications

14,685 approved · 2,422 refused · 1,084 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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. Decided - Granted6/2020/1815/COND

    Submission of details pursuant to condition 2 (Site Waste Management Plan) on planning permission 6/2019/1067/MAJ dated 09 July 2020. Redevelopment of part of the Hill-Top shopping centre at High View to provide 18 retail units (Class A1, A2, A3, A5, B1 and sui generis) a Doctors' Surgery (Flexible use class A1, A2, A3, A5, and D1) 146 residential units (Class C3) new public open space including children's play area, new public square, associated parking, highways and drainage works and public realm improvements following demolition of existing.

    Hill-top, High View Hatfield AL10 8HZ

    Received 23 Jul 2020
  2. Decided - Granted6/2023/2241/LAWP

    Certificate of lawfulness for the erection of a detached outbuilding

    91 Brookmans Avenue Brookmans Park AL9 7QG

    Received 6 Nov 2023
  3. Decided - Granted6/2024/1562/HOUSE

    Erection of a single storey rear extension following demolition of an existing single storey rear extension and conservatory, installation of 4 front rooflights, 1 rear rooflight, hip to gable extension and a rear dormer to facilitate the conversion of the loft to habitable space, garage conversion to habitable space, alterations to fenestration and the erection of rear single storey garage and store

    11 Astwick Avenue Hatfield AL10 9LB

    Received 15 Aug 2024
  4. Decided - Granted6/2022/0774/HOUSE

    Erection of a single story rear extension including demolition of octagonal bay and new entrance gates.

    Pennyfathers Pennyfathers Lane Welwyn AL6 0EL

    Received 30 Mar 2022
  5. Under Consideration6/2026/1574/EM

    Erection of garden room and decking

    6 Ashley Close Welwyn Garden City AL8 7LH

    Received 9 Sept 2026
  6. Decided - Granted6/2019/2435/PN8

    Prior approval for the erection of a single storey rear extension measuring 4m in depth, 2.7m in height and 2.4m to the eaves

    23 Heronswood Place Welwyn Garden City AL7 3NY

    Received 30 Sept 2019
  7. Decided - Withdrawn6/2021/0215/HOUSE

    Erection of a side facing porch, part single storey, part two storey side and rear extension, insertion of 3 x front facing dormer windows and 3 x rear facing dormer windows and alterations to openings.

    51 Peartree Lane Welwyn Garden City AL7 3UA

    Received 25 Jan 2021
  8. Decided - Granted6/2021/0555/HOUSE

    Erection of a two storey/first floor and a single storey rear extension and skylight windows to roofs, removal of rear dormer window, raising of lower section pitched roof and soffit, repositioning of garden gate, replacement of existing oil tank with air source heat pump and installation of solar panels to new roof following the demolition of existing conservatory.

    11A Whitehill Cottages Whitehill Welwyn AL6 9AE

    Received 22 Feb 2021
  9. Decided - Granted6/2021/2847/EMT

    Fell 1 x Conifer (T2) T1 Beech, reduce sucker growth to top of hedge, reduce crown by 30%, clear phone line and crown lift to 3-4m. Deadwood to be removed.

    32 High Oaks Road Welwyn Garden City AL8 7BH

    Received 4 Oct 2021
  10. Decided - Granted6/2020/1044/HOUSE

    Erection of single storey rear and side extension and front gate

    40 Heron Way Hatfield AL10 8QX

    Received 11 May 2020
  11. Decided - Refused6/2018/0056/LAWP

    Certificate of lawfulness for the erection of a single storey side extension to provide garage and internal alterations

    11 Thrush Lane Cuffley Potters Bar EN6 4JU

    Received 8 Jan 2018
  12. Decided - Granted6/2023/1509/EM

    Part conversion of garage into habitable accommodation. Alterations to openings. Erection of a part single, part first floor, part two storey side and rear extensions including pergola. Rooflights to existing roof. Landscape works. Air source heat pump. Vent pipes. Increasing height of existing elevations. Loft conversion

    47 Blakemere Road Welwyn Garden City AL8 7PQ

    Received 19 Jul 2023
  13. Decided - Granted6/2025/2196/COND

    Submission of details pursuant to condition number 2 (Hard and soft landscaping) and 3 (Landscape and Ecological Management Plan) on planning permission 6/2024/1342/RM

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

    Received 15 Oct 2025
  14. Decided - Granted6/2026/0078/HOUSE

    Conversion of garage to habitable room with insertion of window to front elevation and new side door entrance with external staircase

    8 Northaw Road East Cuffley Potters Bar EN6 4LT

    Received 16 Jan 2026
  15. Decided - Granted6/2023/1337/HOUSE

    Erection of single storey rear extension and garage conversion with replacement of garage door to window, new door and widening of drive way

    106 Wheatley Road Welwyn Garden City AL7 3LE

    Received 28 Jun 2023
  16. Decided - Withdrawn6/2018/2367/LAWE

    Certificate of lawfulness for existing use of A5 (Hot Food Takeaway)

    20 Station Road Cuffley Potters Bar EN6 4HT

    Received 13 Sept 2018
  17. Decided - Granted6/2020/2809/HOUSE

    Erection of a single storey rear extension following demolition of conservatory and alterations to fenestration

    54 Gresley Close Welwyn Garden City AL8 7QB

    Received 27 Oct 2020
  18. Decided - Granted6/2025/2534/VAR

    Variation of Condition 16 (Approved Plans) on planning permission 6/2024/1554/FULL

    Land adjacent to Woodvale 1 Carbone Hill Northaw Potters Bar EN6 4PJ

    Received 8 Dec 2025
  19. Appeal Decided - Allowed6/2022/2658/HOUSE

    Erection of first floor side extension, single story rear extension and conversion of car port into habitable space

    18A London Road Woolmer Green SG3 6JP

    Received 22 Nov 2022
  20. Decided - Granted6/2023/1433/COND

    Submission of details pursuant of condition 2 (construction management plan) on planning permission 6/2021/3422/MAJ

    Salisbury Square Hatfield AL9 5AD

    Received 10 Jul 2023
  21. Decided - Granted6/2020/2100/FULL

    Change of use of land for the sale of hot food for a period of 12 months, including siting of associated vendors, seating and waste arrangements

    Former Shredded Wheat Factory Broadwater Road Welwyn Garden City AL7 1RR

    Received 20 Aug 2020
  22. Under Consideration6/2026/1528/COND

    Submission of details pursuant to condition numbers 5 (surface water drainage scheme), 6 (contamination remediation strategy), 7 (contamination monitoring and maintenance plan), 8 (ground investigation), 9 (borehole management scheme), 10 (ecological enhancements) on planning permission 6/2025/1024/RM

    Land at Hollybush Lane to the east of A1000 and north of Ascots Lane Welwyn Garden City AL7 4EG

    Received 1 Sept 2026
  23. Decided - Granted6/2022/1444/FULL

    Erection of part two, part three storey rear extension with mansard roof and conversion to 8 flats comprising 6 x 2-bed and 2 x studio

    12 Harpsfield Broadway Hatfield AL10 9TF

    Received 21 Jun 2022
  24. Decided - Refused6/2023/1129/LAWP

    Certificate of lawfulness for an outbuilding

    74 Warrengate Road North Mymms Hatfield AL9 7TY

    Received 26 May 2023

Records are ordered by application ID, not submission date. Use search to find a particular address or proposal.

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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 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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