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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
19,483Searchable applications
298Recorded as pending
86%Approval rate · 15,746 approved or refused records
2,193Refused applications

13,553 approved · 2,193 refused · 985 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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 - Refused6/2023/1250/HOUSE

    Erection of front porch and pavement of front driveway.

    4 Aldock Welwyn Garden City AL7 4QF

    Received 14 Jun 2023
  2. Decided - Granted6/2026/0556/COND

    Submission of details pursuant to condition number 2 (Archaeological Written Scheme of Investigation) on planning permission 6/2025/0581/HOUSE

    26 Parkside Welwyn AL6 9DQ

    Received 26 Mar 2026
  3. Decided - Refused6/2024/1085/HOUSE

    Erection of a two storey side extension following the demolition of the existing single storey side extension, installation of rear and front facing dormers and alterations to openings

    Gosmore Brocket Road Welwyn Garden City AL8 7TT

    Received 12 Jun 2024
  4. Decided - Withdrawn6/2020/3297/HOUSE

    Replacement of roof structure and increase in ridge height; and erection of rear dormer with external roof terrace

    Fairmount, 10A Upland Drive, Brookmans Park, Hatfield, AL9 6PS

    Received 8 Dec 2020
  5. Decided - Granted6/2021/0727/HOUSE

    Extension of existing roof to incorporate a first floor with two storey rear extension and installation of 5x rooflights

    58 Theobalds Road Cuffley Potters Bar EN6 4HS

    Received 5 Mar 2021
  6. Decided - Granted6/2020/2818/FULL

    Demotion of existing dwelling and erection of a detached two storey building with accommodation in the roofspace comprising 9 apartments

    61 New Road Digswell Welwyn AL6 0AL

    Received 28 Oct 2020
  7. Decided - Granted6/2022/2689/EMT

    T1-Hornbeam-Crown reduce all round by 2 metres to maintain size and shape for area as well as canopy lifting to 2.5m above ground level T2-Willow-Fell to ground level as there is an access path for the disabled being installed T3-Mixed Hedge-Fell to ground level as there is drainage being installed for the disabled access path

    171 Knightsfield Welwyn Garden City AL8 7QG

    Received 25 Nov 2022
  8. Decided - Granted6/2023/1555/EMT

    Crown reduce 1 x oak tree by 2-3m Reduce side limbs by 1-2m Remove deadwood

    1 Elmwood Welwyn Garden City AL8 6LD

    Received 27 Jul 2023
  9. Decided - Refused6/2021/2407/LAWE

    Certificate of lawfulness for a single storey side extension to existing outbuilding (retrospective)

    1 Holloways Lane Welham Green Hatfield AL9 7NR

    Received 16 Aug 2021
  10. Decided6/2026/0166/TC

    Goat willow to crown reduce back to previous pruning points.

    24 Elmwood Welwyn Garden City AL8 6LE

    Received 2 Feb 2026
  11. Decided - Granted6/2026/0428/EMT

    T1 prunus domestica fell to ground level

    41 Woodhall Court Welwyn Garden City AL7 3TD

    Received 9 Mar 2026
  12. Decided - Granted6/2025/0562/EM

    Part conversion of existing garage and alteration to the windows and doors at ground floor level to the side and rear elevations

    20 Guessens Road Welwyn Garden City AL8 6RA

    Received 25 Mar 2025
  13. Decided - Refused6/2024/1298/HOUSE

    Erection of a single storey rear extension and double storey side extension to create a granny annexe, bedroom and creation of a new driveway

    57 Crossway Welwyn Garden City AL8 7ED

    Received 9 Jul 2024
  14. Decided - Granted6/2022/2245/EMT

    T1 x Copper Beech to fell to ground level. The tree has large Meripilus brackets around buttress & roots

    33 Bridge Road Welwyn Garden City AL8 6UG

    Received 28 Sept 2022
  15. Decided - Granted6/2025/0191/MAJ

    Erection of a two storey portable building following the removal of the existing single storey portable building

    Bishops Hatfield Girls School Woods Avenue Hatfield AL10 8NL

    Received 5 Feb 2025
  16. Decided - Granted6/2018/2663/HOUSE

    Erection of single storey side extension and raising height of existing east elevation wall

    The Manor House Hill Farm Lane Ayot St Lawrence AL6 9BP

    Received 17 Oct 2018
  17. Decided - Granted6/2025/0480/EMT

    T1, T2, T3, T5, T6, T8 & T9 - Ash to reduce back to existing pruning points (approx 2.5m). T4 - Sycamore to reduce back to existing pruning points (approx 2.5m). T7 - Field maple to reduce back to existing pruning points (approx 2.5m).

    15 The Old Drive Welwyn Garden City AL8 6TB

    Received 14 Mar 2025
  18. Decided - Granted6/2025/2383/TPO

    TPO 817 T10, T11, T13 & T14, Sycamore to reduce lateral branches over adjacent property by 2-3m from branch tips. T12 Lime, to prune overhanging laterals between ground level and 8m in height to boundary line, pruning approx.. 1-1.5m of regrowth.

    Sadlers Lodge 40 New Road Digswell Welwyn AL6 0AH

    Received 13 Nov 2025
  19. Decided - Withdrawn6/2021/1424/FULL

    Conversion of roof space to add additional habitable flat on third floor

    26 Stonehills Welwyn Garden City AL8 6NA

    Received 5 May 2021
  20. Decided - Granted6/2020/2819/TPO

    2 x Sweet chestnut (T3-4) - Reduce crown by 30%, Cut back to boundary. 3 x Sweet chestnut (T5-7) Reduce crown by 30%, Lift crown by 5 meters.

    18 Great North Road Welwyn AL6 0PS

    Received 28 Oct 2020
  21. Decided - Granted6/2024/0912/LAWP

    Certificate of lawfulness for the erection of a new outbuilding

    3 Tolmers Gardens Cuffley Potters Bar EN6 4JE

    Received 16 May 2024
  22. Decided - Granted6/2021/0056/EM

    Single storey rear extension and internal alterations

    4 The Old Drive Welwyn Garden City AL8 6TB

    Received 8 Jan 2021
  23. Decided - Granted6/2020/0830/FULL

    Formation of earth mounds and elevation of approved hard-play sports pitch

    Chancellors School, Pine Grove, Brookmans Park, Hatfield AL9 7BN

    Received 3 Apr 2020
  24. Decided - Withdrawn6/2023/1932/LAWP

    Certificate of lawfulness for an additional 4 static caravans within existing caravan site and the repositioning of existing caravan (pitch 42) along with the associated works required by the site licence including hard bases and car parking.

    The Firs Park Woodside Lane Hatfield Hertfordshire AL9 6DG

    Received 19 Sept 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

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    Planning approval rates: how to read council statistics

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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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