PlanningTrack
Get started

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15,912 approved · 2,608 refused · 1,178 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2017/2941/LAWP

    Certificate of lawfulness for the removal of chimney and alterations to window on the front elevation

    24 Windsor Road Welwyn AL6 9JJ

    Received 20 Dec 2017
  2. Decided - Granted6/2024/0132/LAWP

    Certificate of lawfulness for the erection of a single storey leisure outbuilding

    Woodlands Well Road Northaw Potters Bar EN6 4BN

    Received 24 Jan 2024
  3. Appeal Decided - Dismissed6/2020/2781/HOUSE

    Erection of a loft extension involving a hip to gable roof alteration and a dormer window

    11 Peplins Close Hatfield AL9 7UX

    Received 23 Oct 2020
  4. Decided - Granted6/2016/2621/ADV

    Installation of non-illuminated free standing A-Board advertisement

    43 Theobalds Road Cuffley Potters Bar EN6 4HL

    Received 9 Dec 2016
  5. Decided - Granted6/2017/0449/COND

    Submission of details pursuant to condition 2 - (Samples of Materials) attached to planning permission 6/2016/2002/HOUSE

    6 High Oaks Road Welwyn Garden City AL8 7BH

    Received 8 Mar 2017
  6. Decided - Granted6/2024/0715/EMT

    Reduce height of fir tree (T1). Reduce it to be in line with the house roof. Maintain shape as much as possible. Removal of cherry tree (T2).

    73 Knightsfield Welwyn Garden City AL8 7JE

    Received 15 Apr 2024
  7. Decided6/2022/2324/TC

    Removal of Mount Etna Broom tree from rear garden

    4 Barleycroft Green Welwyn Garden City AL8 6JY

    Received 5 Oct 2022
  8. Decided - Granted6/2024/1625/PN24

    Prior approval for the installation of a 270kWp PV Solar array to flat roof

    Morrisons Supermarket 40 Black Fan Road Welwyn Garden City AL7 1RY

    Received 23 Aug 2024
  9. Decided - Granted6/2023/1299/TPO

    Lime tree - reduce crown height by 5 metres to decrease risk to pedestrians using the footpath due to crown leaning to the north east over public footpath

    Land between White Hill Road and Butterwick Way Wiltshere Park Welwyn AL6 9AR

    Received 21 Jun 2023
  10. Decided - Refused6/2024/1041/LAWP

    Certificate of lawfulness for replacement of windows at the front of the property and change of the colour of the window frames from white to grey

    60 Lords Wood Welwyn Garden City AL7 2HG

    Received 4 Jun 2024
  11. Decided - Granted6/2021/2351/HOUSE

    Erection of a two storey front extension and front retaining wall, and raise the driveway

    84 Tolmers Road Cuffley Potters Bar EN6 4JY

    Received 9 Aug 2021
  12. Decided - Granted6/2024/0065/TPO

    T1, T2, T3 Elm trees- to fell as trees are dead and in close proximity to neighbouring gardens / houses

    Land behind 63 Calder Avenue Brookmans Park AL9 7AJ

    Received 10 Jan 2024
  13. Decided - Granted6/2021/1876/HOUSE

    Erection of a part two-storey and part single storey extension to rear

    213 Knella Road Welwyn Garden City AL7 3NT

    Received 18 Jun 2021
  14. Decided - Granted6/2022/0363/HOUSE

    Erection of single storey wrap around extension, installation of four roof lights to facilitate the conversion of the loft to habitable space, ground floor internal alterations.

    12 Station Road Digswell Welwyn Hertfordshire AL6 0DG

    Received 15 Feb 2022
  15. Decided - Granted6/2024/0903/HOUSE

    Construction of pitched roof on existing garage

    69 Robbery Bottom Lane Welwyn AL6 0UL

    Received 15 May 2024
  16. Decided - Refused6/2018/2246/HOUSE

    Erection of a part single, part two storey rear and side extension

    50 Marley Road Welwyn Garden City AL7 4BS

    Received 30 Aug 2018
  17. Decided - Split6/2026/0800/COND

    Submission of details pursuant to condition 1 (Construction Management Plan), condition 2 (Surface Water Drainage) and condition 3 (Material Samples), condition 4 (Crown Roof), condition 5 (Landscaping Scheme) and condition 6 (EV Charging Point), condition 7 (Energy Efficiency), and condition 11 (Approved Plans) on planning permission 6/2025/0220/FULL

    36A Reynards Road Welwyn AL6 9TP

    Received 7 May 2026
  18. Decided - Granted6/2020/0703/ADV

    Installation of 2x internally illuminated fascia signs

    Hatfield Hospital, 1 Hatfield Avenue, Hatfield, AL10 9UA

    Received 12 Mar 2020
  19. Decided - Granted6/2021/0087/EMT

    Fell 1 x Spruce to ground level. Reduce 1 x Elder to approx 3m.

    54 Valley Road Welwyn Garden City AL8 7DN

    Received 12 Jan 2021
  20. Decided - Granted6/2017/0316/TPO

    T1 Ash, remove branch overhanging Brockswood Lane, T2 Hornbeam, to Pollard , T3 Oak, reduce by 30% and cut ivy at crown covered by TPO 454 (2010)

    The Orchard House 53 Brockswood Lane

    Received 17 Feb 2017
  21. Decided - Granted6/2018/3006/HOUSE

    Erection of a single storey rear and part side extension, following demolition of existing rear veranda

    67 Mill Green Road Welwyn Garden City AL7 3UX

    Received 23 Nov 2018
  22. Decided - Refused6/2021/1438/HOUSE

    Erection of single storey side extension with pitched roof and bay window following demolition of existing single storey side extension

    Woodlands, School Road, Little Heath, Potters Bar, EN6 1JW

    Received 7 May 2021
  23. Decided - Granted6/2019/0217/MAJ

    Conversion of Northaw House to form 11 apartments (including refurbishment of existing single caretaker’s flat) and underground parking area, the Ballroom Wing to form 2 dwellings, the Stable Block to form 1 dwelling, refurbishment of existing dwelling at Oak Cottage, 3 dwellings within the Walled Garden, 7 dwellings within the Settlement Area, refurbishment of the Walled Garden, refurbishment of access routes and reinstatement of old route, provision of hard and soft landscaping, car parking and supporting infrastructure

    Northaw House Coopers Lane Northaw Potters Bar EN6 4NG

    Received 1 Feb 2019
  24. Decided6/2017/2924/TPO

    Reduce Beech (Tree 1) by 50% and reduce two Hornbeam trees (Tree 2 & 3) by 40% - Conservation area

    34 Woodland Rise Welwyn Garden City AL8 7LF

    Received 18 Dec 2017

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.

    UK research
    Published Updated

  • 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.

    UK research
    Published Updated

  • 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.

    UK research
    Published Updated

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.

Check collection coverage

More planning authorities in England

Browse all authorities