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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
22,769Searchable applications
313Recorded as pending
86%Approval rate · 18,520 approved or refused records
2,608Refused applications

15,912 approved · 2,608 refused · 1,178 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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. Decided - Granted6/2024/0490/EM

    Installation of solar panels on rear roof and garage

    27 Coneydale Welwyn Garden City AL8 7RX

    Received 13 Mar 2024
  2. Decided6/2020/2512/TC

    Reduce 1 x Hawthorn by 1.5m height & width. Reduce 1 x Apple by 15%, 1/2m max covered by conservation area

    11 Mannicotts Welwyn Garden City AL8 7BW

    Received 30 Sept 2020
  3. Decided - Granted6/2017/0730/PN3

    Prior approval for the erection of an agricultural building (Class C2) for storage measuring 27.43m in length, 15.24m in breadth, 5.48m to the eaves and 7.90m to the ridge, following demolition of existing.

    Coldharbour Farm Woodfield Lane Brookmans Park Hertford SG13 8QP

    Received 6 Apr 2017
  4. Decided - Granted6/2025/1865/EMT

    Removal of common Lilac tree and pruning the shrubs on the right hand side of the tree at the back fence

    3 Barleycroft Green Welwyn Garden City AL8 6JY

    Received 2 Sept 2025
  5. Decided - Granted6/2023/1448/EMT

    Portugal Laurel to reduce by around 1.5m height and 1m width. Branches growing over neighbouring boundary to be cut back to fence line. This is to maintain size & shape 1 x Sycamore to dismantle in sections to ground level. Lower basal decay, tree also encompassed by Laurel with poor form

    56 Valley Road Welwyn Garden City AL8 7DN

    Received 11 Jul 2023
  6. Decided - Granted6/2022/2812/EMT

    Removal of self planted Acacia tree that has now grown so that it is blocking light to the garden & house.

    20 Greenfield Welwyn Garden City AL8 7HW

    Received 12 Dec 2022
  7. Decided - Granted6/2019/1342/FULL

    Conversion of 2x outbuildings to 1x Dwelling and erection of a single storey rear extension (retention of number 5 outbuilding)

    5 and 7 Moor Cottages Mimram Walk Welwyn AL6 9EZ

    Received 29 May 2019
  8. Decided - Granted6/2018/0042/HOUSE

    Erection of single storey rear conservatory

    82 Great Ganett Welwyn Garden City AL7 3DE

    Received 5 Jan 2018
  9. Decided - Refused6/2018/2393/TPO

    Fell 6x Lime Trees (G1) -Conservation area

    12 Stanborough Close Welwyn Garden City AL8 6XB

    Received 18 Sept 2018
  10. Decided - Granted6/2017/0797/HOUSE

    Erection of two storey front and side infill extension with Installation of dormer window to front elevation as well as erection of ground floor rear extension

    33 Oaklands Rise Welwyn AL6 0RN

    Received 19 Apr 2017
  11. Appeal Decided - Allowed6/2021/2272/OUTLINE

    Outline application for replacement of stables buildings with 1 x 2 bed dwelling with landscaping reserved

    Swan Stables Woodside Lane Bell Bar Hatfield Brookmans Park AL9 6DE

    Received 29 Jul 2021
  12. Decided - Granted6/2024/0900/EMT

    Removal of Leylandii hedge located against a boundary fence, plan to dismantle in sections to ground level

    10 The Pastures Welwyn Garden City AL7 4PX

    Received 14 May 2024
  13. Decided - Refused6/2021/2155/PN8

    Prior approval for a single storey rear extension measuring 5m in depth, 4m in height and 3m to the eaves

    Fountain View Great North Road Welwyn Garden City AL8 7TG

    Received 16 Jul 2021
  14. Decided - Granted6/2025/0540/EMT

    30ft Hornbeam to reduce by 30%

    1 Youngs Rise, Welwyn Garden City, AL8 6RT

    Received 21 Mar 2025
  15. Decided - Refused6/2022/1351/PN8

    Erection of single storey rear extension

    15 Meadow Croft Hatfield Hertfordshire AL10 0SG

    Received 10 Jun 2022
  16. Decided - Granted6/2024/2080/HOUSE

    Conversion of existing of former garage in to habitable space, with new windows replacing front and rear garage doors and additional window on side elevation

    10 Meadow Green Welwyn Garden City AL8 6SS

    Received 28 Oct 2024
  17. Decided - Granted6/2019/2956/HOUSE

    Erection of a first floor side extension and single storey front extension

    32 Holloways Lane Welham Green Hatfield AL9 7NP

    Received 25 Nov 2019
  18. Decided - Refused6/2021/0821/FULL

    Car parking area and new highway access

    17 Southfield Welwyn Garden City AL7 4ST

    Received 15 Mar 2021
  19. Decided - Granted6/2017/0157/FULL

    Erection of a two-storey front and part single, part two storey rear extension , alteration to existing roof ( including provision of 8 dormers) and height of building to create 3 x 2 bedroom self contained flats, together with elevational alterations, provision of forecourt parking for 4 cars and associated boundary treatment.

    9A Brookmans Avenue Brookmans Park Hatfield AL9 7QH

    Received 27 Jan 2017
  20. Appeal Decided - Dismissed6/2022/0195/FULL

    Erection of 1 x single storey, 4-bed detached dwelling with basement extension and ancillary development, involving demolition of existing outbuilding

    The Cottage Foxes Lane Hatfield AL9 7BA

    Received 27 Jan 2022
  21. Under Consultation6/2026/1352/HOUSE

    Erection of part single part double storey rear extension and single storey side extension to dwelling, fenestration alterations and erection of garage following demolition of existing garage

    6 Handside Green Welwyn Garden City AL8 6SQ

    Received 31 Jul 2026
  22. Decided - Refused6/2018/2149/OUTLINE

    Outline permission for erection of single storey equestrian building to form covered manege and riding area with landscaping details reserved

    Warrenwood Manor (Equestrian area), Hornbeam Lane, Brookmans Park, Hatfield, AL9 6JF

    Received 20 Aug 2018
  23. Decided - Granted6/2023/2144/COND

    Submission of details pursuant to condition number 25 (Materials Samples) and 28 (Sports Hall Specifications) on planning permission 6/2017/1641/MAJ

    Onslow St Audreys School Old Rectory Drive Hatfield AL10 8AB

    Received 20 Oct 2023
  24. Appeal Decided - Dismissed6/2021/2041/HOUSE

    Demolition of existing rear extension and construction of a part single, part two storey rear extension. Demolition of front porch and construction of single storey front extension. Addition of window and doors to existing side elevations.

    116 Harmer Green Lane Digswell Welwyn AL6 0ET

    Received 5 Jul 2021

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

  • 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.

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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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