| City Hotel [wd] | Derry | Hotel | | | |
| City Hotel | Durham | Hotel | | | |
| City Hotel Carlton [wd] | City of Westminster | Hotel | | | |
| City Retreat Edinburgh ApartHotels [wd] | Edinburgh | Aparthotel | | | |
| City Studios - Rodney Street [wd] | Liverpool | Gästehaus | | | |
| CityLiveIn [wd] | Edinburgh | Aparthotel | | | |
| CitySuites Aparthotel [wd] | Manchester | Hotel | | | |
| Clandeboye Lodge Hotel | Bangor | Hotel | 1859 | | |
| Claremont Guesthouse [wd] | Kings Lynn The Red Mount | Hotel | | | |
| Claremont House Keswick [wd] | Cumbria | Hotel | | | |
| Clarence Court Hotel [wd] | Cheltenham | Hotel | | | |
| Clarence Hotel | Slough | Hotel | | | |
| Clarence House Hotel and area railings | St Clears | Hotel | | | |
| Clarendon House Hotel | Warwickshire | Hotel | | | |
| Clarks Three Cooks And Part Of Swan Hotel | Stafford | Hotel | | | |
| Clatterford House (Hotel) | Insel Wight | Hotel | | | |
| Claverton Country House Hotel [wd] | Hastings | Hotel | | | |
| Claverton Private Hotel | Ryde | Hotel | | | |
| Clayton Hotel Birmingham [wd] | Birmingham | Hotel | | | |
| Clayton Hotel Chiswick [wd] | Brentford | Hotel | | | |
| Clayton Hotel Chiswick | Acton | Hotel | | | |
| Clayton Hotel City of London [wd] | Islington | Hotel | | | |
| Cleasewood Guest House [wd] | Great Yarmouth | Hotel | | | |
| Cleeveway Hotel | Cheltenham | Hotel | | | |
| Clementine's Town House Hotel, BW Premier Collection [wd] | Yorkshire | Hotel | | | |
| Cleveden Court Hotel, 61 Cleveden Drive, Kelvinside, Glasgow | Glasgow | Hotel | | | |
| Clevedon Hotel, Rosneath Road, Cove | Helensburgh | Hotel | | | |
| Cliff terrace to the Atlantic Hotel | St Clears | Hotel | | | |
| Cliffside Cottage Hotel | Torquay | Hotel | | | |
| Clift Guest House [wd] | Bristol | Gästehaus | | | |
| Clifton Guest House [wd] | South Shields | Hotel | | | |
| Clifton Hotel | Blackpool | Hotel | | | |
| Clifton Villa - Southport [wd] | Southport | Hotel | | | |
| Clifton Villa Guest House [wd] | Llandudno | Hotel | | | |
| Cliveden Guest House [wd] | Paignton | Hotel | | | |
| Clock House Hotel | Ilminster | Hotel | | | |
| Cloves Boutique Bed & Breakfast [wd] | Grimsby | Hotel | | | |
| Club Hotel | Ely | Hotel | | | |
| Club Quarters Hotel Covent Garden Holborn [wd] | London | Hotel | | | |
| Club Quarters Hotel, Trafalgar Square [wd] | London | Hotel | | | |
| Clyde Estuary Hotel, 78 Princes Street, Ardrossan | Kilmarnock | Hotel | | | |
| Clyde House [wd] | Richmond | Hotel | | | |
| Coach And Horses Inn | Great Dunmow | Gasthaus | | | |
| Coach And Horses Inn, 1 Bank Street, Dumfries | Dumfries | Gasthaus | | | |
| Coast B&B [wd] | Hastings | Hotel | | | |
| Coastal Waters [wd] | Torquay | Hotel | | | |
| Cobden Hotel | Birmingham | Hotel | | | |
| Cock Hotel | Harlow | Hotel | | | |
| Cockhaven Arms | Torquay | Hotel | | | cockhavenarms.co.uk |
| Cocoon @ International Inn [wd] | Liverpool | Kapselhotel | | | |
| Coed-y-Fron [wd] | Colwyn Bay | Hotel | | | |
| Coffee Inn | Bay Horse | Gasthaus | | | |
| Colehayes Park Hotel | Devon | Hotel | | | |
| College Guest House [wd] | Pembrokeshire | Hotel | | | |
| Colliers Hotel [wd] | City of Westminster | Hotel | | | |
| Collin House Hotel | Alcester | Hotel | | | |
| Collingham Serviced Apartments [wd] | Fulham | Hotel | | | |
| Colton Haggs Farm B&B [wd] | York | Hotel | | | |
| Combe Grove Hotel | Bath | Hotel | | | |
| Combe House | Wellington | Landhaushotel | | | |
| Combe House Hotel | Taunton | Hotel | | | |
| Combe Park Hotel | Barnstaple | Hotel | | | |
| Comfort Inn | King’s Cross (London) | Hotel | | | accounts.google.com |
| Commercial Hotel | St Austell | Hotel | | | |
| Commercial Hotel | Manchester | Hotel | | | |
| Commercial Hotel, 73-74 High Street, Haddington | Leith | Hotel | | | |
| Commercial Hotel, 9-11 Main Street, Kilconquhar | Glenrothes | Hotel | | | |
| Commercial Inn | Guiseley | Gasthaus | | | |
| Commodore Hotel [wd] | City of Westminster | Hotel | | | |
| Como Metropolitan London [wd] | City of Westminster | Hotel | | | |
| Compston House B & B [wd] | Kendal | Hotel | | | |
| Compton Court Hotel | York | Hotel | | | |
| Conigre Farm Hotel | Melksham | Hotel | | | |
| Coombe Abbey Hotel [wd] | Coventry | Hotel | | | |
| Coombe Court Hotel [wd] | Torquay | Hotel | | | |
| Coorie Inn [wd] | Stirling | Hotel | | | |
| Copper Beach Hotel Including 2 Piers To Forecourt | Glastonbury | Hotel | | | |
| Copper Beech House [wd] | Worcester | Hotel | | | |
| Copperfields Vegetarian Guest House [wd] | Ramsgate | Hotel | | | |
| Copthorne Hotel London Gatwick | Crawley | Hotel | | | |
| Copthorne Hotel, 40 George Square, Glasgow | Glasgow | Hotel | | | |
| Cordia Serviced Apartments [wd] | Belfast | Hotel | | | |
| Corncroft Guest House [wd] | Witney | Hotel | | | |
| Corner Block Of The Midland Hotel | Bradford | Hotel | | | |
| Corner House Hotel | Bournemouth | Hotel | | | |
| Corner House Hotel, 78 High Street, Annan | Carlisle | Hotel | | | |
| Cornerstones Guesthouse | Rhostyllen | Gästehaus | | | |
| Cornerways Guest House [wd] | Carlisle | Hotel | | | |
| Corran Bunkhouse [wd] | Fort William | Hotel | | | |
| Cors y Gedol Hotel | Porthmadog | Hotel | | | |
| Corse Lawn House Hotel | Tewkesbury | Landhaushotel | | | |
| Cottage by Nant-y-ffin Hotel | Pembrokeshire | Hotel | | | |
| Cottons Hotel & Spa [wd] | Knutsford | Hotel | | | |
| County Arms [wd] | Cornwall | Hotel | | | |
| County Folk Museum | Cambridge | Gasthaus | | | |
| County Hotel | Cumbria | Hotel | | | |
| County Hotel | Richmond | Hotel | | | |
| County Hotel | Canterbury | Hotel | | | |
| County Hotel Chelmsford [wd] | Chelmsford | Hotel | | | |
| County Hotel, 7-9 Castle Street, Forfar | Dundee | Hotel | | | |
| Court Hall The Woolpack Inn | Melksham | Gasthaus | | | |
| Court Residence [wd] | Livingston | Hotel | | | |
| Courtyard by Marriott Oxford South [wd] | Oxford | Hotel | | | |
| Cove Arne Street [wd] | London | Hotel | | | |
| Cove Cannon Street [wd] | London | Hotel | | | |
| Cove Minshull Street [wd] | Manchester | Hotel | | | |
| Cove St Martin’s [wd] | London | Hotel | | | |
| Cowleigh Park Farm [wd] | Worcester | Hotel | | | |
| Cowley Manor Hotel [wd] | Cheltenham | Hotel | | | |
| Coworth Park | Egham | Hotel | | Dorchester Collection | |
| Crab Tree Inn | Hemel Hempstead | Gasthaus | | | |
| Cragside B&B [wd] | Cumbria | Hotel | | | |
| Craig Court Hotel | Torquay | Hotel | | | |
| Craig Park House [wd] | Cumbernauld | Hotel | | | |
| Craig Y Glyn [wd] | Porthmadog | Hotel | | | |
| Craigiebield House Hotel, 50 Bog Road, Penicuik | Edinburgh | Hotel | | | |
| Craiglands Hotel [wd] | Guiseley | Hotel | | | |
| Cranborne Guest Accommodation [wd] | Torquay | Hotel | | | |
| Cranbrook Hotel [wd] | Gants Hill | Hotel | | | |
| Cranston House [wd] | East Grinstead | Hotel | | | |
| Crawford Hotel | Exeter | Hotel | | | |
| Crazy Fox Hurley Boutique Bed & Breakfast [wd] | Marlow | Hotel | | | |
| Cree's Inn, Main Street, Abernethy | Perth | Gasthaus | | | |
| Creech Castle Hotel | Taunton | Hotel | | | |
| Crescent Hotel [wd] | Reading | Hotel | | | |
| Crescent Hotel | Keighley | Hotel | | | |
| Crescent Hotel | Huddersfield | Hotel | | | |
| Creston Villa Guest House [wd] | Lincoln | Hotel | | | |
| Crich Lane Farm [wd] | Alfreton | Hotel | | | |
| Cricket Field House [wd] | Amesbury | Hotel | | | |
| Crickleigh House [wd] | Llandudno | Hotel | | | |
| Crimdon Dene [wd] | Torquay | Hotel | | | |
| Cringleford Guest House [wd] | Norwich | Hotel | | | |
| Criterion Hotel | Gloucester | Hotel | | | |
| Crofthead Farm House [wd] | Kilmarnock | Hotel | | | |
| Crofton Manor Hotel | Gosport | Hotel | | | |
| Croham Park Bed & Breakfast [wd] | Croydon | Hotel | | | |
| Cromwell House [wd] | Eastbourne | Hotel | | | |
| Cross Inn | St Clears | Gasthaus | | | crossinnpenally.co.uk |
| Cross Keys | Cambridgeshire | Gasthaus | | | |
| Cross Keys | Skipton | Gasthaus | | | |
| Cross Keys | Gloucester | Gasthaus | | | |
| Cross Keys | Waterlooville | Gasthaus | | | |
| Cross Keys | Anglesey | Gasthaus | | | |
| Cross Keys Hotel | Norwich | Hotel | | | |
| Cross Keys Hotel | Carlisle | Hotel | | | |
| Cross Keys Hotel | Kendal | Hotel | | | |
| Cross Keys Hotel, 182 High Street, Dalkeith | Edinburgh | Hotel | | | |
| Cross Keys Inn | Scarborough | Gasthaus | | | |
| Cross Keys Inn | Ilminster | Gasthaus | | | |
| Crosshill House [wd] | Glasgow | Gästehaus | | | |
| Crossroads House [wd] | Carlisle | Hotel | | | |
| Crossways Hotel | Hailsham | Hotel | | | |
| Crouchers Hotel [wd] | Chichester | Hotel | | | |
| Crow How Country Guest House [wd] | Cumbria | Hotel | | | |
| Crown And Anchor Hotel | Wahlkreis Thurrock | Hotel | | | |
| Crown And Anchor Inn | Amesbury | Gasthaus | | | |
| Crown And Mitre Hotel | Newark-on-Trent | Hotel | | | |
| Crown Hotel | Hatfield | Hotel | | | |
| Crown Hotel | Oswestry | Hotel | | | |
| Crown Hotel | Rhyl | Hotel | | | |
| Crown Hotel | Crewe | Hotel | | | |
| Crown Hotel And Stable To The Rear | Ilminster | Hotel | | | |
| Crown Hotel, 10, 12 Victoria Street, Kirkpatrick Durham | Dumfries | Hotel | | | |
| Crown Hotel, Main Street, Thornhill | Stirling | Hotel | | | |
| Crown House | Fontwell | Gasthaus | | | |
| Crown Inn | Bath | Gasthaus | | | |
| Crown Inn | Tewkesbury | Gasthaus | | | |
| Crown Inn | Beckington | Gasthaus | | | |
| Crown Inn Chambers And Numbers 3 To 7 (Odd) | Burnley | Gasthaus | | | |
| Crown Inn, 162 High Street, Irvine | Kilmarnock | Gasthaus | | | |
| Crown Lodge Hotel [wd] | Kings Lynn The Red Mount | Hotel | | | |
| Crowndale Torquay - Exclusively for Adults [wd] | Torquay | Hotel | | | |
| Crowne Plaza Glasgow [wd] | Glasgow | Hotel | | | |
| Crowne Plaza Leeds [wd] | Leeds | Hotel | | | |
| Crowne Plaza London Ealing [wd] | Middlesex | Hotel | | | |
| Crowne Plaza London Heathrow T4 [wd] | Feltham | Hotel | | | |
| Crowne Plaza Manchester City Centre [wd] | Manchester | Hotel | | | |
| Crowne Plaza Newcastle - Stephenson Quarter [wd] | Newcastle upon Tyne | Hotel | | | |
| Crowne Plaza Reading [wd] | Reading | Hotel | | | |
| Crowne Plaza Reading East [wd] | Winnersh | Hotel | | | |
| Crudwell Court | Cirencester | Hotel | | | |
| Culgruff House Hotel | Dumfries | Hotel | | | |
| Culloden Estate & Spa [wd] | Bangor | Hotel | | | |
| Culroy Inn | Ayr | Gasthaus | | | |
| Cultoquhey House Hotel | Perth | Hotel | | | |
| Cumberland Hotel | Llandudno | Hotel | | | |
| Cunard Guest House [wd] | Weymouth | Hotel | | | |
| Cupid's Hill Inn | Hereford | Gasthaus | | | |
| Curran Court Hotel [wd] | Bangor | Hotel | | | |
| Cwmbran Gardens Hotel | Newport | Hotel | | | |
| Cyprus Inn, Back Street, Bridge Of Earn | Perth | Gasthaus | | | |
| Da Vinci's Hotel [wd] | Derry | Hotel | | | |
| Dakota Edinburgh [wd] | Dunfermline | Hotel | | | |
| Dakota Eurocentral [wd] | Hamilton | Hotel | | | |
| Dakota Glasgow [wd] | Glasgow | Hotel | | | |
| Dakota Leeds [wd] | Leeds | Hotel | | | |
| Dakota Manchester [wd] | Manchester | Hotel | | | |
| Dalmellington Inn, 2 High Street, Dalmellington | Ayr | Gasthaus | | | |
| Danescombe Hotel And Attached Front Wall And Railings | Plymouth | Hotel | | | |
| Danesfield House Hotel And Spa [wd] | Marlow | Hotel | | | |
| Dannah Farm Country House [wd] | Alfreton | Hotel | | | |
| Danubius Hotel Regents Park [wd] | King’s Cross (London) | Hotel | | | |
| Darwin's Townhouse [wd] | Shrewsbury | Hotel | | | |
| Daviot Lodge [wd] | Inverness | Hotel | | | |
| Dawn Run Inn | Cheltenham | Gasthaus | | | |
| De Rougemont Manor [wd] | Brentwood | Hotel | | | |
| Decoy Barn Fritton [wd] | Great Yarmouth | Hotel | | | |
| Deganwy Castle Hotel | Llandudno | Hotel | | | |
| Del Mar [wd] | Llandudno | Hotel | | | |
| Delaney's Hotel And Restaurant, Middle Court And West Wing, Stardens | Gloucester | Hotel | | | |
| Delta Hotels by Marriott Cheltenham Chase [wd] | Cheltenham | Hotel | | | |
| Delta Hotels Newcastle Gateshead [wd] | Newcastle upon Tyne | Hotel | | | |
| Delta Hotels Nottingham Belfry [wd] | Trowell | Hotel | | | |
| Denbies Vineyard Hotel | Surrey | Hotel | | | denbies.co.uk |
| Denbigh Arms Hotel | Lutterworth | Hotel | | | |
| Deneview [wd] | Chester-le-Street | Hotel | | | |
| Derby Manor [wd] | Bournemouth | Hotel | | | |
| Derby Mickleover Hotel, BW Signature Collection [wd] | Derby | Hotel | | | |
| Destiny Scotland - Distillers House [wd] | Edinburgh | Hotel | | | |
| Destiny Scotland - Princes Street Residence [wd] | Edinburgh | Hotel | | | |
| Destiny Scotland -The Malt House Apartments [wd] | Edinburgh | Hotel | | | |
| Detached Portion Of Springwells Hotel To The North | Worthing | Hotel | | | |
| Devon Hotel | Ilminster | Hotel | | | |
| Devonport Inn | Plymouth | Gasthaus | | | |
| Devonshire Hotel [wd] | Romford | Hotel | | | |
| Devonshire Hotel | Torquay | Hotel | | | |
| Devonshire House [wd] | Bath | Hotel | | | |
| Dial House Inn | Skitt's Hill Camp | Gasthaus | | | |
| Didsbury House Hotel [wd] | Stockport | Hotel | | | |
| Dinwoodie Lodge Hotel | Dumfries | Hotel | | | |
| DJ Suites Blackpool [wd] | Blackpool | Hotel | | | |
| Dolafon | Caernarfon | Hotel | | | |
| Dolmelynllyn Hall | Porthmadog | Landhaushotel | | | |
| Dolperis | Caernarfon | Hotel | | | |
| Dolphin Hotel | Devon | Hotel | | | |
| Dolphin Hotel | Tolvaddon | Hotel | | | |
| Dolphin Hotel | Exeter | Hotel | | | dolphinhotelexmouth.co.uk |
| Dolphin House Serviced Apartments [wd] | City of Westminster | Hotel | | | |
| Dolphin Inn | Ilminster | Gasthaus | | | |
| Dolphin Inn | Insel Wight | Gasthaus | | | |
| Donnington Valley Hotel, Golf & Spa [wd] | Newbury | Hotel | | | |
| Dorian House | Bath | Hotel | | | dorianhouse.co.uk |
| Dorland Hotel | City of Westminster | Hotel | | | |
| Dorset Hotel | Ryde | Hotel | | | |
| Dorset Hotel | Ilminster | Hotel | | | |
| Dorset Square Hotel, Firmdale Hotels [wd] | King’s Cross (London) | Hotel | | | |
| DoubleTree by Hilton Bristol South - Cadbury House | Weston-super-Mare | Hotel | 2007 | | |
| DoubleTree by Hilton Cambridge Belfry | Swavesey | Hotel | 2018 | | |
| DoubleTree by Hilton Coventry Building Society Arena | Coventry | Hotel | | | |