| 51 Roderick Road Residents Ltd. | London | 1996 |
| 51 Rosebery Road Limited | Surrey Quays | 2021 |
| 51 Rugby Road Management Company Limited | Leamington Spa | 2006 |
| 51 Saltoun Limited | Greater London | 2007 |
| 51 Sherriff Road Freehold Management Limited | London | 2002 |
| 51 Shooters Hill Road Management Company Limited | London | 1987 |
| 51 Silverdale Road Eastbourne Limited | East Sussex | 2004 |
| 51 South Street Limited | London | 1979 |
| 51 South Terrace (Freehold) Limited | Lewes | 2026 |
| 51 Southside Street Ltd | Plymouth | 2019 |
| 51 Springfield Road Management Ltd. | Bristol | 1990 |
| 51 ST Albans Avenue Freehold Limited | Lichfield | 2024 |
| 51 ST Augustine's Road Freehold Company Limited | London | 2020 |
| 51 ST Margarets Road Management Limited | Twickenham | 1991 |
| 51 ST Peters Road (Freehold) Limited | Croydon | 2004 |
| 51 ST Stephens Avenue Limited | Chippenham | 2004 |
| 51 ST. George's Square Limited | London | 1979 |
| 51 Station Road Management Limited | London | 2015 |
| 51 Sutherland Avenue Management Limited | London | 1982 |
| 51 Sutton Road RTM Company Ltd | Southend-On-Sea | 2021 |
| 51 Swinburne Avenue Broadstairs Limited | London | 2018 |
| 51 Talbot Street Ltd | Ipswich | 2020 |
| 51 the Drive Hove Freehold Company Limited | St. Leonards-On-Sea | 2022 |
| 51 the Drive Management Company Limited | St Albans | 2015 |
| 51 the Drive RTM Company Ltd | St. Leonards-On-Sea | 2017 |
| 51 Thorn Park Limited | Calstock | 2014 |
| 51 Thornhill Road (1989) Limited | | 1988 |
| 51 Thornton Avenue RTM Company Limited | Harlow | 2017 |
| 51 Thorparch Road Limited | London | 2016 |
| 51 Tisbury Road Hove Limited | Hove | 2003 |
| 51 to 55 Catharine Street Management Company Limited | Wirral | 2004 |
| 51 Trent Road London Limited | London | 2002 |
| 51 Ullet Road Management Company Limited | Liverpool | 2002 |
| 51 Upper Belgrave Road Management Company Limited | Bristol | 2010 |
| 51 Wadeson Street Management Company Limited | | 2002 |
| 51 Wardo Avenue Ltd | London | 2025 |
| 51 Warrington Crescent Limited | London | 1983 |
| 51 Waterloo Street (Hove) Limited | East Sussex | 2006 |
| 51 West Heath Road Management Limited | Borehamwood | 2005 |
| 51 Westbury Road Management Company Limited | Bristol | 1995 |
| 51 Westwood Hill Freehold Limited | London | 2009 |
| 51 Whittingstall Road RTM Company Limited | London | 2019 |
| 51 Wilbury Avenue Hove RTM Company Limited | Hove | 2015 |
| 51 Wilton Road Freehold Ltd | Bexhill On Sea | 2017 |
| 51 Windmill Road RTM Company Limited | London | 2019 |
| 51 Woodville Gardens Freehold Limited | Stevenage | 2016 |
| 51(A) SGR Ltd | London | 2018 |
| 51, Belsize Avenue NW3 Limited | Watford | 1976 |
| 51-53 Anerley Road RTM Company Limited | London | 2009 |
| 51-53 Dabbs Hill Lane Northolt Limited | Northolt | 2022 |
| 51-53 Dorchester Road Management Limited | Poole | 2005 |
| 51-53 Rockley Court RTM Company Ltd | London | 2021 |
| 51-53 Schubert Road SW15 2QT Limited | Romsey | 2019 |
| 51-53 Spencers Road Freehold Limited | Horsham | 2013 |
| 51-53 ST Paul's Management Limited | London | 2013 |
| 51-53 the Drive RTM Company Limited | Ilford | 2021 |
| 51-54 Navigators Way RTM Company Ltd | Southampton | 2021 |
| 51-55 Puller Road (Barnet) Limited | Hertfordshire | 1992 |
| 51-57 Bowers Avenue RTM Company Limited | Wythenshawe | 2016 |
| 51-57 Herbert Road Management Limited | London | 2015 |
| 51-57 Upton Park Residents Association Limited | Wokingham | 1996 |
| 51-57 Wilshire Avenue RTM Company Limited | Chelmsford | 2016 |
| 51-62 Britten Close RTM Company Limited | Salisbury | 2016 |
| 51-69 Dalrymple Road Management Company Limited | Kenley | 2000 |
| 51-70 Waldemar Avenue Mansions RTM Company Limited | London | 2004 |
| 51.02 Apartments RTM Company Limited | Bristol | 2018 |
| 51/51A Little Ealing Lane Management Limited | Ealing | 2014 |
| 51/52 Marine Parade Limited | East Sussex | 1992 |
| 51/53 Harvey Road Limited | Greater London | 2005 |
| 51/53 Northcote (Residential) Limited | Wallington | 2024 |
| 51/53 Ossington Street Freehold Limited | London | 2002 |
| 51/53 Sports Road Management Limited | Leicester | 2021 |
| 51/55 Marlborough Hill Management Company Limited | London | 1997 |
| 512 KR (Freehold) Limited | Haverhill | 2023 |
| 513 Old Chester Road Freehold Limited | Birkenhead | 2023 |
| 515 Southmead Road Management Company Ltd | Bristol | 2014 |
| 51B Camberwell Road RTM Company Limited | Chigwell | 2013 |
| 52 & 53 Tennyson Street Freehold Limited | Norwich | 2022 |
| 52 - 54 Blackbull Road RTM Co Ltd | Folkestone | 2010 |
| 52 53 & 54 Partington Square Management Company Limited | Runcorn | 2025 |
| 52 Abbotsbury Road Weymouth Limited | Weymouth | 1993 |
| 52 Aberdeen Park (Freehold) Limited | London | 1998 |
| 52 Acre Lane Management Company Limited | London | 2001 |
| 52 Adelaide Avenue Ltd | London | 2018 |
| 52 Alderbrook Road Limited | London | 2021 |
| 52 Alness Road Management Company Limited | Hyde | 2003 |
| 52 and 53 Lloyd Court RTM Company Limited | Pinner | 2024 |
| 52 Anson Road, London N.7. Limited | | 1973 |
| 52 Apsley Road Limited | Bristol | 1981 |
| 52 Ashley Lane Hendon Limited | Manchester | 2017 |
| 52 Avenue Road Management Company Limited | Glossop | 2023 |
| 52 Balfour Road Brighton (Freehold) Limited | Hatfield | 2023 |
| 52 Barons Court Freehold Limited | Winchester | 2015 |
| 52 Belsize Park Gardens Management Company Limited | South Woodford | 1988 |
| 52 Blenheim Road (Freehold) Limited | London | 2023 |
| 52 Blomfield Road Limited | London | 1982 |
| 52 Braxted Park RTM Company Limited | | 2004 |
| 52 Brighton Road (Purley) Limited | Surrey | 2006 |
| 52 Bromar Road Limited | London | 2019 |
| 52 Brondesbury Road NW6 Limited | | 1996 |