| L'ecume des Mers | Isle of Kerrera | Argyll and Bute |
| LA Bowl | Ryde | Isle of Wight |
| La Hougue Bie | Grouville | Jersey |
| La Mare Vineyards | St Mary | Jersey |
| La Valette Underground Military Museum | St Peter Port | Guernsey |
| Labour History Archive and Study Centre | Manchester | Greater Manchester |
| Laburnum Ceramics Gallery | Penrith | Cumbria |
| Lace Market Centre | Nottingham | Nottinghamshire |
| Lacey Green Windmill | Princes Risborough | Buckinghamshire |
| Lackford Lakes Nature Reserve & Visitor/Education Centre | Lackford | Suffolk |
| Lackham Country Park | Lacock, Nr Chippenham | Wiltshire |
| Lackham Museum of Agriculture and Rural Life | Lacock, Nr Chippenham | Wiltshire |
| Lacock Abbey, Fox Talbot Museum & Village | Lacock, Nr Chippenham | Wiltshire |
| Lady Florence River Cruise Restaurant | Orford | Suffolk |
| Lady Lever Art Gallery | Higher Bebington | Merseyside |
| Lady Waterford Hall | Ford & Etal | Northumberland |
| Lady's Well | Holystone, Rothbury | Northumberland |
| Ladyland Farm | Horley | Surrey |
| Lagan Boat Co | Belfast | Co. Antrim |
| Lagan Lookout Visitors Centre | Belfast | Co. Antrim |
| Lagavulin Distillery Visitor Centre | Port Ellen, Isle of Islay | Argyll and Bute |
| Laidhay Croft Museum | Dunbeath | Highland |
| Laing Art Gallery | Newcastle upon Tyne | Tyne and Wear |
| Lairg Tourist Information Centre | Lairg | Highland |
| Lake District Coast Aquarium | Maryport | Cumbria |
| Lake District Visitor Centre at Brockhole, The | Nr Windemere | Cumbria |
| Lake Vrynwy Tourist Information Centre | Lake Vrynwy, Oswestry | Shropshire |
| Lake Windermere | Windermere | Cumbria |
| Lakeland Bird of Prey Centre | Penrith | Cumbria |
| Lakeland Climbing Centre | Kendal | Cumbria |
| Lakeland Equestrian | Troutbeck, Windemere | Cumbria |
| Lakeland Miniature Village | Cark In Cartmel | Cumbria |
| Lakeland Motor Museum | Holker Hall, Cark In Cartmel | Cumbria |
| Lakeland Sheep & Wool Centre | Cockermouth | Cumbria |
| Lakeland Wildlife Oasis | Hale, Milnthorpe | Cumbria |
| Lakemore Country Park | Haslington, Crewe | Cheshire |
| Lakes Glass Centre | Ulverston | Cumbria |
| Lakes Homecentre, The | Cockermouth | Cumbria |
| Lakes Supertours | Windemere | Cumbria |
| Lakeside & Haverthwaite Railway | Haverthwaite | Cumbria |
| Lakeside Arts Centre | Nottingham | Nottinghamshire |
| Lakeside Country Park | Eastleigh | Hampshire |
| Lakeside Leisure Limited | Skegness | Lincolnshire |
| Lakeside Village | Doncaster | South Yorkshire |
| Lamb House | Rye | East Sussex |
| Lamberhurst Vineyard | Lamberhurst | Kent |
| Lambourn Trainers Association | Lambourn | West Berkshire |
| Lamorna Pottery | Lamorna, Penzance | Cornwall |
| Lamphey Bishops Palace | Lamphey, nr Pembroke | Pembrokeshire |
| Lamplight Arts Centre | Stanley | Tyne and Wear |
| Lamport Hall and Gardens | Northampton | Northamptonshire |
| Lanark Museum | Lanark | South Lanarkshire |
| Lanark Tourist Information Centre | Lanark | South Lanarkshire |
| Lancashire Aero Club | Eccles | Greater Manchester |
| Lancaster Castle | Lancaster | Lancashire |
| Lancaster City Museum | Lancaster | Lancashire |
| Lancaster Maritime Museum | Lancaster | Lancashire |
| Lancaster Priory | Lancaster | Lancashire |
| Lancaster Tourist Information Centre | Lancaster | Lancashire |
| Lance Hattatt Design Garden | Weobley | Herefordshire |
| Land Farm Garden | Hebden Bridge | West Yorkshire |
| Land of Lost Content | Craven Arms | Staffordshire |
| Land Sea & Islands Centre, The | Arisaig | Highland |
| Landguard Fort | Nr Felixtowe | Suffolk |
| Landmark Heritage Park | Carrbridge | Highland |
| Lands End | Lands End, Sennen | Cornwall |
| Lanercost Priory | Lanercost, Nr Brampton | Cumbria |
| Langdon Hills Country Park | Corringham | Essex |
| Langdon Visitor's Centre | Basildon | Essex |
| Langham Glass | Langham, Holt | Norfolk |
| Langholm Golf Club | Langholm | Dumfries and Galloway |
| Langley Castle | Langley-on-Tyne | Northumberland |
| Langley Chapel | Acton Burnell, Nr Shrewsbury | Shropshire |
| Langley Park Country Park | Iver Heath | Buckinghamshire |
| Langport and River Parrett Visitor Centre | Langport | Somerset |
| Langstone Harbour | Havant | Hampshire |
| Langton Matravers Museum | Langton Matravers | Dorset |
| Lanhydrock | Bodmin | Cornwall |
| Lanreath Folk and Farm Museum | Looe | Cornwall |
| Lanternhouse | Ulverston | Cumbria |
| Laphroaig Distillery | Port Ellen, Isle of Islay | Argyll and Bute |
| Lappa Valley Steam Railway | St Newlyn East | Cornwall |
| Lapworth Museum of Geology | Birmingham | West Midlands |
| Larch Cottage Nurseries | Melkinthorpe | Cumbria |
| Largs Museum | Largs | North Ayrshire |
| Largs Tourist Information Centre | Largs | North Ayrshire |
| Larmer Tree Gardens | Tollard Royal | Wiltshire |
| Laser Quest | Manchester | Greater Manchester |
| Laser Storm | Weston | Lincolnshire |
| Lashenden Air Warfare Museum | Headcorn, Ashford | Kent |
| Last of the Summer Wine Exhibition | Holmfirth | West Yorkshire |
| Latrigg | Keswick | Cumbria |
| Lauderdale Aisle, St Mary's Church | Haddington | East Lothian |
| Lauderdale House | Highgate | Greater London |
| Laugharne Castle | Laugharne, Carmarthen | Carmarthenshire |
| Launceston Castle | Launceston | Cornwall |
| Launceston Steam Railway | Launceston | Cornwall |
| Launceston Tourist Information Centre | Launceston | Cornwall |
| Laurel and Hardy Museum | Ulverston | Cumbria |
| Laurel Farm Herbs | Saxmundham | Suffolk |
| Lauriston Castle | Edinburgh | Edinburgh |
| Lavender Line Preserved Railway | Isfield | East Sussex |
| Lavenham Guildhall | Lavenham, Sudbury | Suffolk |
| Lavenham Tourist Information Centre | Lavenham, Sudbury | Suffolk |
| Law Society's Hall, The | City of London | Greater London |
| Lawn Visitor Centre | Lincoln | Lincolnshire |
| Lawrence Batley Theatre | Huddersfield | West Yorkshire |
| Lawrence House | Launceston | Cornwall |
| Laxey Heritage Trust | Laxey | Isle of Man |
| Laxey Wheel & Mines Trail | Laxey | Isle of Man |
| Laxey Woollen Mills | Laxey | Isle of Man |
| Laxford Cruises | Tarbet | Highland |
| Layd Old Church | Cushendall | Antrim |
| Layer Marney Tower | Colchester | Essex |
| Le Moulin de Quetivel | St Peter | Jersey |
| Le Strange Old Barns | Old Hunstanton | Norfolk |
| Le Tricoteur - The Knitwear of Guernsey | St Saviour | Guernsey |
| Lea Gardens | Matlock | Derbyshire |
| Leahill Turret and Piper Sike Turret (Hadrian`s Wall) | Nr Birdoswald | Cumbria |
| Leamington Spa Tourist Information Centre | Leamington Spa | Warwickshire |
| Learn to Surf | Croyde | Devon |
| Leas Lift | Folkestone | Kent |
| Leasand Marston Rock | South Shields | Tyne and Wear |
| Lechlade Trout Fisheries | Lechlade | Gloucestershire |
| Ledbury Tourist Information Centre | Ledbury | Herefordshire |
| Lee Ford Gardens | Budleigh Salterton | Devon |
| Lee Valley Boat Centre | Broxbourne | Hertfordshire |
| Lee Valley Nature Reserve - The Waterworks and Golf Centre | Chingford | Greater London |
| Lee Valley Park Farms | Waltham Abbey | Essex |
| Leeds Bradford International Airport | Leeds | West Yorkshire |
| Leeds Castle | Leeds, nr Maidstone | Kent |
| Leeds Castle Golf Course | Leeds, nr Maidstone | Kent |
| Leeds City Art Gallery | Leeds | West Yorkshire |
| Leeds Golf Centre | Shadwell | West Yorkshire |
| Leeds Grand Theatre & Opera House | Leeds | West Yorkshire |
| Leeds Industrial Museum | Leeds | West Yorkshire |
| Leeds Parish Church | Leeds | West Yorkshire |
| Leeds Pottery Hartley Greens | Longton | Staffordshire |
| Leek Tourist Information Centre | Leek | Staffordshire |
| Leez Priory | Chelmsford | Essex |
| Legal and Illegal London Walk - The Inns of Court | Holborn | Greater London |
| Legananny Dolmen | Dromara | Down |
| Leggat Quarry Car Park and Elginia Trail | Elgin | Moray |
| Legoland | Windsor | Windsor & Maidenhead |
| Leicester Cathedral | Leicester | Leicestershire |
| Leicester Tourist Information Centre | Leicester | Leicestershire |
| Leigh Court Barn | Nr Worcester | Worcestershire |
| Leighton Buzzard Railway | Leighton Buzzard | Bedfordshire |
| Leighton Hall | Carnforth | Lancashire |
| Leighton House Museum | Kensington | Greater London |
| Leighton Lady Cruises | Leighton Buzzard | Bedfordshire |
| Leighton Library | Dunblane | Perth and Kinross |
| Leighton Moss Nature Reserve | Silverdale, Carnforth | Lancashire |
| Leiston Abbey | Leiston | Suffolk |
| Leisure Farm Park | Cardigan | Pembrokeshire |
| Leisure Lakes | Tarleton | Lancashire |
| Leisure Marine | Plockton | Highland |
| Leith Hall & Garden | Huntly | Aberdeenshire |
| Leith Hill | Broadmoor, Dorking | Surrey |
| Lennoxlove House | Haddington | East Lothian |
| Leominster Tourist Information Centre | Leominster | Herefordshire |
| Leonardslee Lakes & Gardens | Lower Beeding | West Sussex |
| Lepe Country Park | Lepe | Hampshire |
| Lerwick Tourist Information Centre | Lerwick | Shetland |
| Les Pres de Jerbourg Private Gardens | St Martin | Guernsey |
| Leslie Hill Open Farm | Ballymoney | Co. Antrim |
| Letchworth Museum | Letchworth | Hertfordshire |
| Letham Glen | Leven | Fife |
| Letheringsett Watermill | Holt | Norfolk |
| Lettershuna Riding Centre | Appin | Argyll and Bute |
| Levant Mine & Beam Engine | Pendeen, Nr St Just | Cornwall |
| Levens Hall | Kendal | Cumbria |
| Leventhorpe Vineyard | Woodlesford, Leeds | West Yorkshire |
| Lewes Castle and Barbican House Museum | Lewes | East Sussex |
| Lewes Tourist Information Centre | Lewes | East Sussex |
| Lewis Castle | Stornoway | Western Isles |
| Lewis Elton Gallery | Guildford | Surrey |
| Lewis Karting Centre | Nr. Stornoway, Isle of Lewis | Western Isles |
| Lewis Loom Centre | Stornoway, Isle of Lewis | Western Isles |
| Lewisham Tourist Information Centre | Lewisham | Greater London |
| Lexden Earthworks and Bluebottle Grove | Colchester | Essex |
| Leyburn Tourist Information Centre | Leyburn | North Yorkshire |
| Liberty Stadium | Swansea | Swansea |
| Library and Museum of Freemasonry | | Greater London |
| Lichfield Cathedral | Lichfield | Staffordshire |
| Lichfield Garrick | Lichfield | Staffordshire |
| Lichfield Heritage Centre | Lichfield | Staffordshire |
| Lichfield Tourist Information Centre | Lichfield | Staffordshire |
| Liddesdale Heritage Centre | Newcastleton | Scottish Borders |
| Life in a Lens | Matlock Bath | Derbyshire |
| Life Science Centre | Newcastle upon Tyne | Tyne and Wear |
| Light Infantry Museum | Winchester | Hampshire |
| Lighthouse | Glasgow | Glasgow |
| Lightwater Valley Theme Park and Country Shopping Village | Ripon | North Yorkshire |
| Lilleshall Abbey | Nr Okengates | Shropshire |
| Lilliesleaf Nursery | Linthill, Lillienleaf | Scottish Borders |
| Lilliput Antique Doll and Toy Museum | Brading | Isle of Wight |
| Limavady Tourist Information Centre | Limavady | Londonderry |
| Lime Tree Studio Gallery | Fort William | Highland |
| Lincluden Collegiate Church | Dumfries | Dumfries and Galloway |
| Lincoln Castle | Lincoln | Lincolnshire |
| Lincoln Cathedral | Lincoln | Lincolnshire |
| Lincoln Tourist Information Centre | Lincoln | Lincolnshire |
| Lincolnshire Aviation Heritage Centre | Spilsby | Lincolnshire |
| Lincolnshires Lifelong Adventure | North Somercotes | Lincolnshire |
| Lindholme Leisure Lakes | Epworth | North Lincolnshire |
| Lindinney Car Park | Selkirk | Scottish Borders |
| Lindisfarne Castle | Holy Island, Berwick-upon-Tweed | Northumberland |
| Lindisfarne Heritage Centre | Holy Island | Northumberland |
| Lindisfarne Priory | Holy Island | Northumberland |
| Lindsey House | Chelsea | Greater London |
| Lingen Nursery & Garden | Lingen, Nr Bucknell | Shropshire |
| Linley Sambourne House | Kensington | Greater London |
| Linlithgow Canal Centre | Linlithgow | West Lothian |
| Linlithgow Palace | Linlithgow | West Lothian |
| Linlithgow Story, The | Linlithgow | West Lothian |
| Linlithgow Tourist Information Centre | Linlithgow | West Lothian |
| Linmere Visitor Centre | Northwich | Cheshire |
| Linn Botanic Gardens & Nursery | Helensburgh | Argyll and Bute |
| Linnhe Marine | Appin | Argyll and Bute |
| Linton Zoo | Linton, Cambridge | Cambridgeshire |
| Lion Gallery | Leominster | Herefordshire |
| Lion Salt Works Trust | Marston, Northwich | Cheshire |
| Lisnagade and Lisnavaragh Forts | Banbridge | Down |
| Lisnamintry Rath | Craigavon | Armagh |
| Little Bay Day Cruise Company | Oban | Argyll and Bute |
| Little Chocolate Shop | Leyburn | North Yorkshire |
| Little Clarendon | Dinton, Salisbury | Wiltshire |
| Little Easton Manor and Barn Theatre | Great Dunmow | Essex |
| Little Gems | Cromer | Norfolk |
| Little Hall | Lavenham, Sudbury | Suffolk |
| Little Haven Pottery | Haverfordwest | Pembrokeshire |
| Little Holland House | Carshalton | Greater London |
| Little Loft Gallery and Turnery | Trinity | Jersey |
| Little Malvern Court | Malvern | Worcestershire |
| Little Meg Stone Circle | Penrith | Cumbria |
| Little Moreton Hall | Congleton | Cheshire |
| Little Salkeld Watermill | Nr Langwathby | Cumbria |
| Little Theatre | Bath | Bath and North East Somerset |
| Little Venice London Walk | | Greater London |
| Little Wedlock Gallery | Gumfreston, Tenby | Pembrokeshire |
| Littleborough Coach House | Littleborough | Greater Manchester |
| Littlehampton Museum | Littlehampton | West Sussex |
| Littlehampton Tourist Information Centre | Littlehampton | West Sussex |
| Littlethorpe Potteries | Littlethorpe | North Yorkshire |
| Liverpool Anglican Cathedral | Liverpool | Merseyside |
| Liverpool Empire Theatre | Liverpool | Merseyside |
| Liverpool Everyman Theatre | Liverpool | Merseyside |
| Liverpool Football Club Museum and Tour Centre | Liverpool | Merseyside |
| Liverpool John Lennon Airport | Liverpool | Merseyside |
| Liverpool Lighthouse | Liverpool | Merseyside |
| Liverpool Museum | Liverpool | Merseyside |
| Liverpool Olympia | Liverpool | Merseyside |
| Liverpool Philharmonic Hall | Liverpool | Merseyside |
| Liverpool Playhouse Theatre | Liverpool | Merseyside |
| Liverpool Street Tourist Information Centre | | Greater London |
| Liverpool Tourist Information Centre | Liverpool | Merseyside |
| Living Coasts | Torquay | Devon |
| Living Legend, The | St Peter | Jersey |
| Living Rainforest, The | Hampstead Norreys, Nr Newbury | West Berkshire |
| Livingston's Countryside | Livingstone Village | West Lothian |
| Lizard and Kynance Cove, The | Lizard | Cornwall |
| Llanberis Guides | Caernarfon | Gwynedd |
| Llanberis Lake Railway | Llanberis | Gwynedd |
| Llanberis Tourist Information Centre | Llanberis | Gwynedd |
| Llancaiach Fawr Manor | Caerphilly | Caerphilly |
| Llandaff Cathedral | Cardiff | Cardiff |
| Llandarcy Tourist Information Centre | Llandarcy | Swansea |
| Llandovery Heritage Centre | Llandovery | Carmarthenshire |
| Llandovery Tourist Information Centre | Llandovery | Carmarthenshire |
| Llandrindod Wells Tourist Information Centre | Llandrindod Wells | Powys |
| Llandudno Museum | Llandudno | Conwy |
| Llandudno Tourist Information Centre | Llandudno | Conwy |
| Llanelli Tourist Information Centre | Llanelli | Carmarthenshire |
| Llanerch Vineyard | Cowbridge | Vale of Glamorgan |
| Llanerchaeron | Ciliau Aeron, Nr Aberaevon | Ceredigion |
| Llanfair Slate Cavern | Llanfair, Harlech | Gwynedd |
| Llanfair Tourist Information Centre | Llanfairpwllgwyngyll | Anglesey |
| Llangedwyn Mill Craft Workshops | Llangedwyn | Powys |
| Llangloffan Cheese Centre | Haverfordwest | Pembrokeshire |
| Llangollen Motor Museum | Llangollen | Denbighshire |
| Llangollen Railway | Llangollen | Denbighshire |
| Llangollen Tourist Information Centre | Llangollen | Denbighshire |
| Llanidloes Tourist Information Centre | Llanidloes | Powys |
| Llanrwst Almshouses | Llanrwst | Conwy |
| Llansteffan Castle | Llansteffan | Carmarthenshire |
| Llantarnam Grange Arts Centre | Cwmbran | Torfaen |
| Llanthony Priory | Llanthony, Abergavenny | Powys |
| Llanthony Secunda Priory | Gloucester | Gloucestershire |
| Llantrisant Forest | Llantrisant | Rhondda Cynon Taff |
| Llanwrtyd Wells Tourist Information Centre | Llanwrtyd Wells | Powys |
| Llawhaden Castle | Llawhaden, Narberth | Pembrokeshire |
| Llechwedd Slate Caverns | Blaenau Ffestiniog | Gwynedd |
| Llewellyn Alexander Gallery | | Greater London |
| Lliw Reservoirs | Felindre | Swansea |
| Lloyd George Museum and Highgate Victorian Cottage | Llanystumdwy, Criccieth | Gwynedd |
| Llwyngwril Gallery | Llwyngwril | Gwynedd |
| Llyn Alaw Visitor Centre | Llantrisant | Anglesey |
| Llyn Brenig Visitor Centre | Corwen | Conwy |
| Llyn Crafnant | Trefriw | Conwy |
| Llyn Crafnant Trout Fishing | Trefriw | Conwy |
| Llyn Elsi Wayfaring Course | Gwydyr Forest Park | Conwy |
| Llyn Llech Owain Country Park | Narberth | Carmarthenshire |
| Llynnon Mill Museum | Holyhead | Anglesey |
| Llys y Fran Country Park | Haverfordwest | Pembrokeshire |
| Llywelyn Cottage | Beddgelert | Gwynedd |
| Llywernog Silver Mine | Ponterwyd, Aberystwyth | Ceredigion |
| LM Charters | Connel, Oban | Argyll and Bute |
| Local Studies Library and Archives | Oldham | Greater Manchester |
| Loch Awe Boating & Fishing Centre | Dalmally | Argyll and Bute |
| Loch Awe Steam Packet Company | Loch Awe | Argyll and Bute |
| Loch Centre | Tranent | East Lothian |
| Loch Etive Cruises | Taynuilt | Argyll and Bute |
| Loch Ettrick Fishery | Closeburn, By Thornhill | Dumfries and Galloway |
| Loch Fad Fishery | Isle of Bute | Argyll and Bute |
| Loch Garten Osprey Centre | Nethy Bridge | Highland |
| Loch Goil Cruisers | Lochgoilhead | Argyll and Bute |
| Loch Leven Castle | By Kinross | Perth and Kinross |
| Loch Lomond and the Trossachs National Park | Balloch | Argyll and Bute |
| Loch Lomond Homes and Gardens | Balloch | Argyll and Bute |
| Loch Lomond Water Taxis | Drymen | Argyll and Bute |
| Loch Long Pony Trails | Dornie, by Kyle of Lochalsh | Highland |
| Loch Morlich Watersports | Aviemore | Highland |
| Loch Neagh Discovery Centre | Craigavon | Co. Armagh |
| Loch Ness 2000 Exhibition Centre | Drumnadrochit | Highland |
| Loch Ness Cruises | Drumnadrochit | Highland |
| Loch of Lowes Visitor Centre | Dunkeld | Perth and Kinross |
| Loch Shiel Cruises | Glenfinnan | Highland |
| Loch Tay Highland Lodges & Equestrian Centre | Killin | Argyll and Bute |
| Loch Tay Pottery | Aberfeldy | Perth and Kinross |
| Lochaber Leisure Centre | Fort William | Highland |
| Lochaber Watersports | North Ballachulish | Highland |
| Lochailort Church | Lochailort | Highland |
| Lochalsh Woodland Gardens | Balmacara, Kyle of Lochalsh | Highland |
| Lochaweside Marine | Loch Awe | Argyll and Bute |
| Lochboisdale Tourist Information Centre | Lochboisdale, South Uist | Western Isles |
| Lochcarron of Scotland | Galashiels | Scottish Borders |
| Lochcarron Tourist Information Centre | Lochcarron | Highland |
| Lochee Leisure Centre | Dundee | Angus |
| Lochgilphead Tourist Information Centre | Lochgilphead | Argyll and Bute |
| Lochinver Tourist Information Centre | Lochinver | Highland |
| Lochmaben Castle | Lochmaben | Dumfries and Galloway |
| Lochmaddy Tourist Information Centre | Lochmaddy, Isle of North Uist | Western Isles |
| Lochore Meadows Country Park | Crosshill | Fife |
| Lochranza Castle | Lochranza, Brodick | North Ayrshire |
| Lochranza Tourist Information Centre | Lochranza, Brodick | North Ayrshire |
| Lochside Leisure Centre | Forfar | Angus |
| Lochwinnoch Golf Club | Lochwinnoch | Renfrewshire |
| Lock Park Adventure Centre | Keith | Moray |
| Locksmith's House, The | Willenhall | West Midlands |
| Locomotion The National Railway Museum at Shildon | Shildon | Durham |
| Loder Plants | Lower Beeding | West Sussex |
| Lodge Park & Sherborne Estate | Sherborne, Nr Cheltenham | Gloucestershire |
| Loe Pool | Helston | Cornwall |
| Logan Botanic Garden | Port Logan | Dumfries and Galloway |
| Logan Fish Pond Marine Life Centre | Port Logan | Dumfries and Galloway |
| Loggerheads Country Park | Loggerheads, Mold | Flintshire |
| Logie Farm Riding Centre | Glenferness | Highland |
| Logie Steading Visitor Centre | Forres | Highland |
| Lomond Adventure | |
