| 30 Wessex Gardens Limited | London | 2020 |
| 30 West Road Buxton Management Limited | Buxton | 2009 |
| 30 Woodstock Grove Management Company Limited | London | 1992 |
| 30, 30A and 32 POW Drive (Freehold) Ltd | London | 2021 |
| 30, Medina Villas Resident's Association Limited | Crawley | 1990 |
| 30-32 Catterick Road RTM Company Limited | Manchester | 2010 |
| 30-32 Cross Street Management Company Limited | London | 2002 |
| 30-32 Friern Park Management Company Limited | London | 2008 |
| 30-32 Ludgate Ltd | West Sussex | 2025 |
| 30-32 Maresfield Gardens Limited | Watford | 2010 |
| 30-33 Denton ST Limited | London | 2013 |
| 30-34 Hornsey Road (London) RTM Company Limited | Croydon | 2020 |
| 30-40 South Park Drive Limited | Royston | 2012 |
| 30/30A Cumberland Road Limited | London | 1997 |
| 30/32 Alexandra Gardens Management Company Limited | London | 2012 |
| 300 Abbey Ltd | London | 2025 |
| 300 Abbey SUB Ltd | London | 2025 |
| 300 Coldharbour Lane (Residents) Company Limited | London | 2001 |
| 300 Holdings Ltd | Ardrossan | 2025 |
| 300 Skipton Road Limited | Harrogate | 2006 |
| 300 Yards Ltd | Bromley | 2023 |
| 3006 Ltd | Eastbourne | 2018 |
| 300A Cheriton Ltd | Folkestone | 2023 |
| 301 West Street Ltd | Ingatestone | 2018 |
| 302 Ernesettle Lane Limited | Birmingham | 2026 |
| 302 Gibson Quay Ltd | Watford | 2024 |
| 302 Ltd | Leeds | 2023 |
| 3021 Property Ltd | Tranent | 2025 |
| 303 Cavendish Road Management Company Limited | London | 2015 |
| 303 Investments Ltd | Birmingham | 2021 |
| 303 Laleham Road Management Company Limited | Surrey | 2001 |
| 303 MM Ltd | Nuneaton | 2018 |
| 303 PR Property Limited | Uxbridge | 2022 |
| 303 Preston Road Limited | Uxbridge | 2020 |
| 3031 Properties Ltd | Cramlington | 2025 |
| 3034 ST Andrew SQ Edinburgh HN (Leaseco) Limited | Shirebrook | 2026 |
| 3035 Trinity Close Management Limited | Northwood | 2004 |
| 304 Ewell Road Ltd | Worcester Park | 2019 |
| 304 Holding Ltd | London | 2024 |
| 304 VM Limited | Stockport | 2022 |
| 304 Walworth Limited | London | 2025 |
| 305 Chase House Limited | London | 2017 |
| 305 Property Ltd | Liverpool | 2026 |
| 305 Queenstown Road Management Ltd | London | 2007 |
| 306 Investments Ltd | London | 2024 |
| 306 Redcatch Road Management Company Limited | Bristol | 2006 |
| 306 Western Avenue Limited | Cardiff | 2022 |
| 307 KQ Limited | Bristol | 2025 |
| 307 OX Road Ltd | Windsor | 2022 |
| 307 Preston Ltd | London | 2021 |
| 307PROPERTIES Limited | Watford | 2026 |
| 308 Ability Ltd | Elland | 2018 |
| 308 Developments Ltd | Williton | 2018 |
| 308 Ltd | Canterbury | 2024 |
| 308 VM Limited | Stockport | 2024 |
| 309 Camberwell Road Management Limited | London | 2008 |
| 309 KR Management Limited | Esher | 2016 |
| 309 Residential Limited | Throckley | 2025 |
| 309 SDQ Limited | London | 2019 |
| 30A High Street Limited | Stratford-Upon-Avon | 2019 |
| 30A Sandford Avenue Freehold Limited | London | 2014 |
| 30C Alexandra Road Management Company Limited | Enfield | 2019 |
| 30C Property Limited | Attleborough | 2017 |
| 30CG2 Limited | London | 2024 |
| 30DV Limited | Harefield | 2026 |
| 30GLOBE Limited | London | 2024 |
| 31 & 31A Westbourne Street Hove Limited | Worthing | 2003 |
| 31 & 32 Cranbrook Drive Freehold Limited | Prudhoe | 2015 |
| 31 & 33 Green Street Management Company Ltd | Rickmansworth | 2025 |
| 31 - 37 Dukeson Properties Limited | London | 2018 |
| 31 Abbey Road (Bourne) Limited | Norwich | 2007 |
| 31 Abercorn Place Freehold Limited | | 1999 |
| 31 Addison Gardens Limited | London | 2000 |
| 31 Aigburth Drive Management Company Limited | Liverpool | 2004 |
| 31 Almorah Road Limited | London | 2003 |
| 31 and 31A Dean Road, London NW2 5AB Freehold Limited | | 2005 |
| 31 and 31A Devonshire Close Management Company Limited | Salisbury | 1979 |
| 31 and 31A Gould Road Freehold Limited | Twickenham | 2013 |
| 31 Batoum Gardens Ltd | London | 2021 |
| 31 Beaumont Street Limited | Oxfordshire | 2004 |
| 31 Bloomfield Limited | London | 2024 |
| 31 Bohemia Road (Hastings) Limited | Tenterden | 2021 |
| 31 BR Limited | Moon Lane | 2018 |
| 31 Brittany Road Management Company Ltd | St. Leonards-On-Sea | 2022 |
| 31 Broughton Road Limited | London | 2011 |
| 31 Brunswick Square Hove Limited | | 2007 |
| 31 Buckley Road (Residents) Limited | London | 1990 |
| 31 Camden Square Limited | London | 2014 |
| 31 Camden Square RTM Company Limited | London | 2013 |
| 31 Campden Grove Management Limited | | 2000 |
| 31 Canal Street Limited | Ormskirk | 2007 |
| 31 Carlingford Road NW3 Management Company Limited | London | 1991 |
| 31 Cavendish Road Management Company Limited | Sutton | 1999 |
| 31 Charlemont Road Limited | London | 2008 |
| 31 Church Road NO 1 Limited | Egham | 2024 |
| 31 Church Road NO 2 Limited | Egham | 2024 |
| 31 Church Road NO 3 Limited | Egham | 2024 |
| 31 Claremont Road Limited | Reigate | 2009 |
| 31 Cliveden Place Ltd | London | 2017 |
| 31 Conway Street Management Company Limited | London | 2002 |