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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
17,914Searchable applications
298Recorded as pending
86%Approval rate · 14,439 approved or refused records
1,999Refused applications

12,440 approved · 1,999 refused · 904 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2021/0019/COND

    Submission of details pursuant to conditions 1(b) (remediation scheme) on planning permission 6/2018/2809/MAJ

    New Queen Elizabeth II Hospital Howlands Welwyn Garden City AL7 4HQ

    Received 5 Jan 2021
  2. Decided - Granted6/2026/0911/HOUSE

    Erection of single storey rear extension with covered pergola area

    4 Sherrards Mansion Rectory Road Welwyn Garden City AL8 7AY

    Received 21 May 2026
  3. Decided - Granted6/2024/1993/HOUSE

    Proposed garage conversion with alterations to the fenestration including infilling with brickwork and insertion of new window

    19 Witchford Welwyn Garden City AL7 2PR

    Received 16 Oct 2024
  4. Decided - Refused6/2024/0322/PN33

    Change of use from commercial, business and service (Class E) to dwellinghouses (Class C3) residential use to form two dwellings

    York House 4 Wigmores South Welwyn Garden City AL8 6PL

    Received 19 Feb 2024
  5. Decided - Granted6/2020/1233/FULL

    Installation of a 'through the wall' ATM unit, CCTV camera and security light

    Tesco Express Commercial Unit New Local Centre Hertfordshire Knebworth SG3 6JR

    Received 2 Jun 2020
  6. Decided - Granted6/2025/1845/FULL

    Installation of a feature corner glazed façade to the existing building, the insertion of new doors and fenestration, the provision of external steps, a new barrier gate within the site, the formation of new parking bays and associated hardstanding, internal alterations to the building, and the installation of a new ventilation system with external vents to the north-eastern elevation.

    12 Little Burrow Welwyn Garden City AL7 4SW

    Received 28 Aug 2025
  7. Decided - Granted6/2026/0793/EM

    Erection of rear extension plus retrospective permission for a shed

    41 Rowans Welwyn Garden City AL7 1NZ

    Received 6 May 2026
  8. Decided6/2023/1406/TC

    Cherry to reduce by approximately 2m in height and 2-2.5m in width. Norway maple to reduce height by 1.5m and width by 1.2m. 1 x Hawthorn to fell to near ground level - this is in serious decline and almost dead

    112 Parkway Welwyn Garden City AL8 6HN

    Received 5 Jul 2023
  9. Decided - Withdrawn6/2021/2584/FULL

    Erection of a two storey, 1-bed dwelling to the side of existing dwelling, alterations to the rear elevation of existing dwelling, installation of a vehicular crossover and additional parking space, involving demolition of single storey extension and detached garage

    2 Haseldine Meadows Hatfield AL10 8HE

    Received 6 Sept 2021
  10. Decided - Granted6/2023/2356/HOUSE

    Erection of an outbuilding

    85 Bramble Road Hatfield AL10 9SB

    Received 22 Nov 2023
  11. Decided - Refused6/2025/1835/HOUSE

    Erection of two storey side and rear extension

    40 Dellsome Lane Welham Green Hatfield AL9 7ND

    Received 28 Aug 2025
  12. Under Consideration6/2024/1346/FULL

    Retention of alterations to pre-existing service station

    Welham Green Service Station Dellsome Lane Welham Green Hatfield AL9 7NF

    Received 15 Jul 2024
  13. Decided - Granted6/2021/0661/EMH

    Erection of single storey side extension, insertion of 1 x roof light to side and replacement chimney

    12 Dellcott Close Welwyn Garden City AL8 7BD

    Received 1 Mar 2021
  14. Decided - Granted6/2021/2537/HOUSE

    Erection of a single storey rear extension

    20 School Lane Welwyn AL6 9PH

    Received 31 Aug 2021
  15. Decided - Granted6/2022/2871/HOUSE

    Erection of a single storey rear extension to replace existing

    6 Reddings Welwyn Garden City AL8 7LA

    Received 19 Dec 2022
  16. Decided - Granted6/2023/0850/LAWP

    Certificate of lawfulness for the erection of detached garden room annexe, following demolition of garden shed.

    13 Golden Dell Welwyn Garden City AL7 4EE

    Received 20 Apr 2023
  17. Decided6/2024/1871/TC

    1 x Goat willow remove deadwood consisting of branches greater than 40mm in diameter, lift canopy to 5m above ground level, reduce lateral branches back from property by 1.5m.

    108 Lemsford Lane Welwyn Garden City AL8 6YP

    Received 30 Sept 2024
  18. Decided6/2022/2087/TC

    1 x Silver birch to reduce width by approximately 2m 1 x Holly to fell to ground level 1 x Hazel to reduce height by approximately 2.5m. Lift to 2m 1 x Cherry plum to reduce by 2m in height, reduce overlong lateral limb by approximately 2.5m to create a balanced crown.

    7 High Oaks Road Welwyn Garden City AL8 7BJ

    Received 7 Sept 2022
  19. Decided - Granted6/2021/0558/HOUSE

    Erection of a single storey side extension

    31 Upperfield Road Welwyn Garden City AL7 3LP

    Received 22 Feb 2021
  20. Decided - Granted6/2018/2839/FULL

    Conversion, extension and change of use of stables building and part paddock to single dwelling, with parking provision, access driveway, amenity space and landscaping

    Land off Monkswood Welwyn Garden City

    Received 5 Nov 2018
  21. Decided - Granted6/2025/2597/HOUSE

    Erection of a single storey front, side and rear extensions.

    71 Holloways Lane Welham Green Hatfield AL9 7NU

    Received 19 Dec 2025
  22. Decided6/2019/1908/TC

    Fell 1 x Beech tree Fell 1 x Sycamore tree

    134 Lemsford Lane Welwyn Garden City AL8 6YP

    Received 5 Aug 2019
  23. Under Consideration6/2026/1261/FULL

    Change of use from a six-person HMO to a seven-person HMO with garage conversion to communal living space and new cycle and refuse/recycling store

    162 Dragon Road Hatfield AL10 9NZ

    Received 17 Jul 2026
  24. Decided - Granted6/2019/2965/PN8

    Prior approval for the erection of a single storey rear extension measuring at 5m in depth, 3m in height and 2.9m to the eaves

    236 Heronswood Road Welwyn Garden City AL7 3JQ

    Received 25 Nov 2019

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

  • 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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