| 129ERS Limited | London | 2015 |
| 129SW Freehold Limited | London | 2018 |
| 12A Barnpark Terrace RTM Company Limited | Teignmouth | 2025 |
| 12A Crescent Place Brighton Limited | Brighton | 2009 |
| 12A Kirkley Cliff Road Limited | Lowestoft | 2025 |
| 12A Penzance Place Limited | London | 1998 |
| 12A Perrymead Street Limited | London | 1997 |
| 12A Royal York Crescent (NO.2) Limited | Bristol | 1988 |
| 12A-C Shining Cliff Residents Management Company Ltd | Hastings | 2020 |
| 12LG Limited | Nottingham | 2023 |
| 12PHS Limited | London | 2016 |
| 12PR Hampton Wick Ltd | Kingston Upon Thames | 2025 |
| 12STQ Ltd | London | 2021 |
| 13 Burma Road Management Limited | London | 2007 |
| 13 & 13A Nelson Road RTM Company Limited | Bournemouth | 2024 |
| 13 & 14 Bladud Buildings (Bath) Management Company Limited | Croydon | 1985 |
| 13 & 14 Greville Close Limited | Twickenham | 2016 |
| 13 & 14 Myddelton Close Limited | Enfield | 2017 |
| 13 & 14 the Beeches RTM Company Limited | Stockport | 2019 |
| 13 - 13A Rayleigh AVE RTM Company Limited | Billericay | 2013 |
| 13 - 15 Clanricarde Gardens Limited | New Milton | 2004 |
| 13 - 16 Wessex Lodge Freehold Limited | Stockport | 2026 |
| 13 - 18 Kinnoull Mansions RTM Company Limited | Seaton | 2011 |
| 13 - 35 Hardwicke Road Limited | Richmond Upon Thames | 1999 |
| 13 Abbeville Road Management Limited | London | 2006 |
| 13 Abbotsford Road Management Limited | Liverpool | 2007 |
| 13 Adelaide Grove Management Company Limited | London | 2003 |
| 13 Akenside (Management) Limited | Newcastle Upon Tyne | 1988 |
| 13 Albany Road Freehold Limited | St. Leonards-On-Sea | 2022 |
| 13 Albert Road Limited | London | 2017 |
| 13 Albert Road RTM Company Limited | | 2004 |
| 13 Albert Street Management Company Limited | Banbury | 2021 |
| 13 Aldridge Road Villas Freehold Limited | Chichester | 2015 |
| 13 Alexandra Grove Ltd | Marlow | 2016 |
| 13 Alma Square Freehold Limited | London | 2005 |
| 13 and 13A Bridge Road (Uxbridge) Freehold Limited | Uxbridge | 2020 |
| 13 and 13A Cowper Street Management Company Limited | Brighton | 2015 |
| 13 Angles Road Limited | London | 2004 |
| 13 Apsley Road Management Limited | Bristol | 1999 |
| 13 Arthur Road Freehold Limited | London | 2020 |
| 13 Atherfold Road RTM Company Limited | Romsey | 2019 |
| 13 Austral Street Limited | | 1995 |
| 13 Avenue Park Road Freehold Limited | London | 2021 |
| 13 Avenue Road (Highgate) Limited | Watford | 1986 |
| 13 Bagdale Management Company Limited | North Yorkshire | 1982 |
| 13 Balfour Road (Management) Limited | | 1994 |
| 13 Balham Grove Limited | London | 2020 |
| 13 Basing Street Freehold Company Limited | London | 2008 |
| 13 Bassett Road Limited | London | 2018 |
| 13 Bastille Ltd | Aberdeen | 2019 |
| 13 Beaconsfield Villas (Brighton) Limited | Brighton | 2015 |
| 13 Beaufort Road, Clifton, Bristol 8, Management Company Limited | Bristol | 1987 |
| 13 Beckenham Road RTM Company Limited | Beckenham | 2004 |
| 13 Bedfordwell Road RTM Company Limited | Hailsham | 2026 |
| 13 Bellevue Crescent Management Company Limited | Bristol | 1988 |
| 13 Belsize Square Limited | | 1999 |
| 13 Belvedere Road Management Company Limited | Bristol | 2003 |
| 13 Birdhurst Road South Croydon Freehold Company Limited | South Croydon | 2023 |
| 13 Blakesley Avenue Limited | London | 2023 |
| 13 Bloemfontein Road Management Company Limited | London | 2021 |
| 13 Bloom Grove Limited | London | 2000 |
| 13 Bloomfield Road Management Company Limited | London | 1992 |
| 13 Bolingbroke Grove Limited | London | 1989 |
| 13 BP Limited | London | 2002 |
| 13 Brackenbury Road Ltd | London | 2018 |
| 13 Bramham Gardens Freehold Limited | United Kingdom | 2018 |
| 13 Briston Grove Limited | | 1998 |
| 13 Brondesbury Park Management Limited | London | 2008 |
| 13 Brondesbury Villas Management Company Limited | London | 1983 |
| 13 Brooker Street RTM Company Limited | Hove | 2026 |
| 13 Buchanan Avenue Freehold Limited | Fordingbridge | 2015 |
| 13 Buckingham Place Management Company Limited | Bristol | 1983 |
| 13 BWR Ltd | Isleworth | 2020 |
| 13 Cadogan Terrace Management Company Limited | London | 2004 |
| 13 Caledonia Place (Management) Limited | Bristol | 1983 |
| 13 Campden Street Limited | London | 2026 |
| 13 Canfield Gardens Limited | London | 2001 |
| 13 Canning Crescent Limited | Watford | 2003 |
| 13 Carlton Road Limited | London | 2021 |
| 13 Carrack DHU Ltd | St Ives | 2023 |
| 13 Carysfort Road Management Company Limited | Bournemouth | 1999 |
| 13 Cavendish Grove Limited | Upham | 2001 |
| 13 Cavendish Road Management Company Limited | Bourne End | 2002 |
| 13 Cecil Road Management Co Limited | Weston-Super-Mare | 2001 |
| 13 Chatham ROW Bath Limited | Bath | 1982 |
| 13 Chesham Place RTM Company Ltd | London | 2015 |
| 13 Christchurch Road Management Company Limited | Bristol | 1990 |
| 13 Christchurch Road RTM Company Limited | Broadstairs | 2005 |
| 13 Church Road Management Company Limited | Exeter | 2004 |
| 13 Church Road ST Leonards on Sea Limited | St. Leonards-On-Sea | 2017 |
| 13 Church Street (Godalming) Ltd | Haslemere | 2024 |
| 13 Church Terrace Management Limited | | 1990 |
| 13 Churchfield Road Management Company Limited | London | 1991 |
| 13 Churchill Road Freehold Limited | Bournemouth | 2018 |
| 13 Circus Street Management Company Limited | Oxford | 2021 |
| 13 Clarence Street Management Limited | Penzance | 2000 |
| 13 Clarendon Road Liverpool Management Company Limited | Liverpool | 2003 |
| 13 Cleve Road Limited | London | 1997 |
| 13 Clifton Road LA Limited | Worthing | 2008 |
| 13 Clifton Road Limited | London | 2021 |