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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
19,285Searchable applications
298Recorded as pending
86%Approval rate · 15,572 approved or refused records
2,167Refused applications

13,405 approved · 2,167 refused · 978 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2021/2210/LB

    Installation of patio, repositioning of entrance door and internal alterations

    47 The Ryde Hatfield AL9 5DQ

    Received 21 Jul 2021
  2. Decided6/2024/1513/TC

    Lime tree reduce back to previous cuts Beech tree reduce by 30% back to previous cuts Lime tree stump to grind

    30 Youngs Rise Welwyn Garden City AL8 6RU

    Received 8 Aug 2024
  3. Decided6/2026/0688/TC

    A - Trees & shrubs in front garden property boundary with 3 Church lane - trim back trees & shrubs to property boundary & crown reduction of Plum trees to eaves level of 3 Church Lane. B - Tall Conifer, crown reduction by at least 25% or at most to eaves level of 3 Church Lane. C - Shrubbery on boundary with 3 Church lane, south of Conifer, reduction in height to fence level.

    1 Church Lane Northaw Potters Bar EN6 4NX

    Received 17 Apr 2026
  4. Decided - Refused6/2021/3053/HOUSE

    Erection of part single, part two storey side/rear extension to include 1 x front dormer on existing roof and extension of high level decking to rear.

    8 Wood View Cuffley Potters Bar EN6 4RE

    Received 25 Oct 2021
  5. Decided - Granted6/2020/0366/HOUSE

    Erection of a part single, part two storey side extensions

    4 Hawkshead Lane North Mymms Hatfield AL9 7TB

    Received 10 Feb 2020
  6. Decided - Granted6/2022/2599/HOUSE

    Erection of a single storey rear extension with insertion of rooflight, following the demolition of the existing conservatory

    20 Leysdown Welwyn Garden City AL7 2PY

    Received 14 Nov 2022
  7. Decided - Refused6/2021/2490/HOUSE

    Erection of a part two storey, part single storey rear extension and insertion of 1 x window to existing first floor

    136 Salisbury Road Welwyn Garden City AL7 3SA

    Received 25 Aug 2021
  8. Decided - Refused6/2022/0291/ADV

    Installation of 1 x externally illuminated projecting hanging sign and 2 x internally illuminated fascia signs

    9 Osborn House Howardsgate Welwyn Garden City AL8 6AT

    Received 8 Feb 2022
  9. Decided6/2021/2511/TC

    1x Lawson Cypress to fell 1x Yew to fell 1x Silver Birch to reduce by 4m height and 1.5m width

    2 Turmore Dale Welwyn Garden City AL8 6HS

    Received 27 Aug 2021
  10. Decided - Granted6/2021/1773/EMH

    Erection of a first floor rear extension, removal of rear conservatory, erection of single storey rear extension, garage conversion

    29 Longcroft Lane Welwyn Garden City AL8 6EB

    Received 7 Jun 2021
  11. Decided - Granted6/2021/3000/EMH

    Erection of a single storey rear extension with insertion of 3 x roof lights involving demolition of existing outbuilding

    53 Crossway Welwyn Garden City AL8 7ED

    Received 19 Oct 2021
  12. Decided - Granted6/2020/2260/HOUSE

    Demolition of existing detached garage. New attached garage with single storey rear extension, insertion of Conservation Rooflights & "Bullseye" windows to front and rear elevation. New Pitched roof outbuilding at rear of garden

    9 Coneydale Welwyn Garden City AL8 7RX

    Received 28 Jul 2020
  13. Decided - Granted6/2024/0172/TPO

    T1 Oak tree to reduce by 3m, back to previous, all over and additional reduction of 1m of scaffold limbs over dwelling. Selective pruning to remove 2 secondary branches that extend furthest over dwelling (please see photo for reference). Reason: large branches are falling from the tree and tree is unsafe in close proximity to house (TPO 797 (2018))

    5 Roundabout Lane Welwyn AL6 0TH

    Received 29 Jan 2024
  14. Decided - Granted6/2020/0654/LAWP

    Certificate of lawfulness for the erection of a single storey side extension and installation of rear dormer to facilitate loft conversion

    23A The Ridgeway Cuffley Potters Bar EN6 4BB

    Received 9 Mar 2020
  15. Decided - Refused6/2018/2148/LAWP

    Certificate of lawfulness for erection of single storey rear extension

    3 Chambers Grove Welwyn Garden City AL7 4FG

    Received 20 Aug 2018
  16. Decided6/2024/0409/TC

    T1 - Cedar tree to fell to ground and remove stump as tree has grown too large, interfering with overhead phone lines and growing over public footpath causing a potential hazard

    48 Blakemere Road Welwyn Garden City AL8 7PJ

    Received 4 Mar 2024
  17. Decided - Granted6/2019/2591/HOUSE

    Erection of a ground floor side/rear and first floor extension, including the construction of a rear dormer and installation of rooflights to facilitate the creation of habitable space within the loft and erection of front boundary wall and gates

    50 Plough Hill Cuffley Potters Bar EN6 4DS

    Received 15 Oct 2019
  18. Decided - Refused6/2020/3205/EM

    Erection of a single storey side extension, single storey rear/side extension and alterations to fenestration

    20 Monks Rise Welwyn Garden City AL8 7NF

    Received 30 Nov 2020
  19. Decided - Granted6/2025/1982/EMT

    1 x Sweetgum to reduce by 2m height and 1m width 1 x Cherry to reduce around 1.2m below previous pruning points

    11 Cherry Croft Welwyn Garden City AL8 7QU

    Received 15 Sept 2025
  20. Decided - Granted6/2020/3278/FULL

    Proposed installation of extraction flue to the rear, retractable awning to the front of the premises associated with internal alternations.

    90 Town Centre Hatfield AL10 0JW

    Received 7 Dec 2020
  21. Decided - Withdrawn6/2018/2681/PN8

    Prior approval for the erection of single storey rear extension measuring 4m in depth, 3m in height, 3m to the eaves

    9 Falcon Close Hatfield AL10 8QY

    Received 18 Oct 2018
  22. Decided - Refused6/2023/0308/PN8

    Prior approval for the erection of a single storey rear extension measuring 4.5m in depth, 3.5m in height, 2.25m to the eaves

    9 Ellenbrook Crescent Hatfield AL10 9RP

    Received 8 Feb 2023
  23. Decided - Granted6/2022/1217/EM

    Installation of eaves and fascia boards to the existing roof

    57 Attimore Road Welwyn Garden City AL8 6LG

    Received 25 May 2022
  24. Decided - Granted6/2022/2534/HOUSE

    Erection of single storey front infill extension and extension of front canopy, installation of new windows and doors to dwelling and to existing garage to facilitate partial garage conversion to habitable space and internal alterations to layout.

    5 Witchford Welwyn Garden City AL7 2PR

    Received 7 Nov 2022

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

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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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