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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
17,982Searchable applications
298Recorded as pending
86%Approval rate · 14,490 approved or refused records
2,006Refused applications

12,484 approved · 2,006 refused · 913 withdrawn. Received dates in our records: 5 Jan 2005 to 30 Sept 2026. Most recent record check: 11 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2019/0289/HOUSE

    Extension and alterations to existing outbuilding comprising erection of canopy, installation of roof lights and alterations to openings to facilitate its conversion into an ancillary home office and games room

    31-33 Ayot Green, Ayot St Peter, Welwyn, AL6 9AB

    Received 8 Feb 2019
  2. Decided - Granted6/2018/2873/COND

    Submission of details pursuant to condition 1( Landscaping Plan) on planning 6/2018/1572/HOUSE

    42 The Ridgeway Cuffley Potters Bar EN6 4BA

    Received 8 Nov 2018
  3. Decided - Granted6/2022/1085/EM

    Garden Office - wooden temporary structure, below 2.5m, 3mx4m, double glazed, insulated and to be supplied with electricity cable, for working from home

    77 Valley Road Welwyn Garden City AL8 7DR

    Received 10 May 2022
  4. Decided - Refused6/2024/0667/HOUSE

    Erection of a single storey side extension following the demolition of the existing conservatory

    56 Mimram Road Welwyn AL6 9HA

    Received 9 Apr 2024
  5. Decided - Granted6/2021/2497/LB

    Excavation of soil and drainage channels externally. Internal repair to plaster damage by damp and repair works to a listed wall mural.

    Templewood Primary School Pentley Park Welwyn Garden City AL8 7SD

    Received 25 Aug 2021
  6. Decided - Granted6/2018/3106/PN3

    Prior approval for the erection of an agricultural building for storage purposes

    Lower Woodside Farm, Lower Woodside, Wildhill Road, Brookmans Park, Hatfield, AL9 6DH

    Received 5 Dec 2018
  7. Decided - Granted6/2020/0652/COND

    Submission of details pursuant to condition 1 (construction/repair method statement) and 2 (window and door specifications) on listed building consent 6/2018/0718/LB

    The Green Man Mill Green Bush Hall Lane Hatfield AL9 5NZ

    Received 9 Mar 2020
  8. Decided - Granted6/2022/0698/HOUSE

    Erection of single storey rear extension and removal of chimney stack

    42 Homestead Lane Welwyn Garden City Hertfordshire AL7 4NF

    Received 24 Mar 2022
  9. Decided - Granted6/2024/0081/EM

    Installation of solar panels to pitched roof at rear of property under the Solar Together scheme

    26 Sheepcote Welwyn Garden City AL7 4QD

    Received 12 Jan 2024
  10. Decided - Granted6/2025/1927/EM

    Replacement of existing chimney stack with identical replica following the removal of entire existing stack

    3 Roundwood Drive Welwyn Garden City AL8 7JZ

    Received 8 Sept 2025
  11. Decided - Refused6/2019/0817/HOUSE

    Erection of part single, part first floor side extension, two storey side extension, alterations to the roof to form a gable end with an increase in ridge height and front and rear dormers, single storey rear extension and external raised terrace following part demolition of the existing roof and side and rear extensions

    12 King James Avenue Cuffley Potters Bar EN6 4LR

    Received 4 Apr 2019
  12. Decided - Refused6/2026/0974/TPO

    T1 Oak Prune western aspect by 2 metres. (Covered by TPO24 A3 and TPO 642 (2017) G1)

    2 Woodacre Drive Welwyn AL6 0UA

    Received 3 Jun 2026
  13. Decided - Granted6/2018/2718/HOUSE

    Alterations to Bridge House, rebuilding of an associated outbuilding and altered external works

    26 High Street Welwyn AL6 9EQ

    Received 23 Oct 2018
  14. Decided - Granted6/2023/0880/ADV

    Installation of illuminated fascia sign

    64-68 Bridge Road East Welwyn Garden City AL7 1JU

    Received 26 Apr 2023
  15. Decided6/2023/2011/TC

    1 x Oak - reduce by approximately 2m height and 2.5m width. The tree is becoming large and dominant and in close proximity to the house

    46 Sherrardspark Road Welwyn Garden City AL8 7LB

    Received 29 Sept 2023
  16. Decided - Granted6/2021/3447/HOUSE

    Erection of rear extension at ground floor level, front, side and rear extensions at first floor level, garage conversion, alteration of fenestrations and insertion of first floor side windows.

    11 Cranmer Close Little Heath Potters Bar EN6 1LB

    Received 9 Dec 2021
  17. Appeal Decided - Withdrawn6/2021/2514/MAJ

    Redevelopment of the existing farmyard and non-designated Heritage Assets to create 6 dwellings (2 x 3-bed, 2 x 4-bed and 2 x 5-bed) and an annexe/holiday let with associated parking, amenity space and biodiversity areas

    Holwell Court Farm Holwell Court Hatfield AL9 5RL

    Received 27 Aug 2021
  18. Decided - Granted6/2020/2837/HOUSE

    Loft Conversion with additional velux to front, side and rear elevations.

    217 Handside Lane Welwyn Garden City AL8 6TF

    Received 29 Oct 2020
  19. Decided - Granted6/2020/1877/HOUSE

    Erection of single storey leisure building in the rear garden

    66 Brookmans Avenue Hatfield AL9 7QQ

    Received 29 Jul 2020
  20. Decided - Granted6/2024/1489/LB

    Repainting, repair wooden sills that have perished. Fill/repair any cracks in walls

    41 High Street Welwyn AL6 9EF

    Received 5 Aug 2024
  21. Decided - Granted6/2019/0844/FULL

    Erection of two dwellings with associated parking, bins and cycle provision following the demolition of existing dwelling and outbuilding

    41 Hawkshead Lane North Mymms Hatfield AL9 7TD

    Received 8 Apr 2019
  22. Decided6/2020/2172/TC

    Fell 1 x Cherry tree covered by conservation area

    1 Scholars Mews Welwyn Garden City AL8 7JQ

    Received 26 Aug 2020
  23. Decided - Granted6/2019/1727/EM

    Fell 1 x Cherry tree

    64 Parkway Welwyn Garden City AL8 6HH

    Received 12 Jul 2019
  24. Decided6/2020/3249/TC

    Australian eucalyptus - remove

    3 Hawthorns Welwyn Garden City AL8 7SE

    Received 3 Dec 2020

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 application documents: what to read first

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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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