OSB Group PLC
OSB Group PLC is a UK-listed specialist lender focused on selected mortgage-market segments, supported by retail savings businesses and a portfolio of specialist finance brands.
Last updated September 25, 2026
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Overview
OSB Group PLC is a UK financial-services group and specialist mortgage lender. Its stated focus is on selected, often underserved segments of the mortgage market rather than lending solely through broad mainstream criteria. The group describes its heritage as extending back more than 150 years to building-society foundations established to help people own property and to provide personal customer service. Its lending activities cover Buy-to-Let and residential mortgages, including lending for shared ownership and Help to Buy, as well as complex commercial and semi-commercial property finance, development finance, bridging finance and asset finance. The group’s lending is supported by its Kent Reliance and Charter Savings Bank retail savings franchises. Its specialist lending businesses include brands such as Precise Mortgages, Kent Reliance for Intermediaries, InterBay and Rely, each aimed at distinct customer or intermediary needs. OSB Group presents its approach as specialist and customer-focused, combining tailored lending criteria with savings franchises. The company says it is UK-listed. Its history page records OneSavings Bank’s London Stock Exchange flotation in 2014. The group’s current website presents OSB Group as an active financial-services business and describes its purpose as helping customers, colleagues and communities prosper.
History
OSB Group’s own account of its history begins with building-society roots more than 150 years ago. The original purpose, as described by the group, was to make property ownership more accessible while maintaining personal service and supporting local communities. The historical account connects those roots with the Chatham and Kent Reliance tradition. The group’s timeline records the formation of Chatham & District Reliance between 1898 and 1902. It says that the first mortgage advance was £250 and the first offices opened in Gillingham, Kent. Between 1957 and 1963, passbooks were introduced and the organization opened its first branch in Chatham. The history page notes that passbooks continued to be offered. In 1986, following mergers with Kent and Canterbury, Dover District and Herne Bay societies, the organization was renamed Kent Reliance Building Society. The page also records later development of the group’s financial-services activities. From 2004 to 2010, OSB India became its first offshore subsidiary, Charter Court Financial Services was formed, and Precise Mortgages began lending. A major institutional change followed in 2011–2012, when Kent Reliance transferred its business to a new bank, OneSavings Bank plc. The same period saw Prestige Finance and InterBay Commercial (now InterBay) join OSB, and the company history identifies Andy Golding as the new CEO. In 2014, OneSavings Bank floated on the London Stock Exchange at 170p, and Heritable Development Finance joined OSB. Charter Savings Bank launched in 2015. OSB Group’s later identity is that of a UK-listed specialist lender whose businesses address selected mortgage and property-finance segments. Its current description includes Buy-to-Let and residential lending, complex commercial and semi-commercial finance, development finance, bridging finance and asset finance. The group says that its lending business is supported by Kent Reliance and Charter Savings Bank retail savings franchises, while its brands serve distinct audiences and needs. The supplied sources do not establish a complete subsequent chronology, so no further dated corporate changes are asserted here.
- 2015
Charter Savings Bank launched
- 2014
OneSavings Bank floated on the London Stock Exchange
- 2011
Kent Reliance business transferred to OneSavings Bank
- 2004
Offshore subsidiary and specialist lending businesses develop
- 1986
Renamed Kent Reliance Building Society
- 1957
Passbooks introduced and first Chatham branch opened
- 1898
Chatham & District Reliance formed
Products and positioning
A UK specialist mortgage lender serving selected and underserved market segments through specialist brands, supported by retail savings franchises.
Specialist mortgages and property finance
The group identifies Buy-to-Let, residential, complex commercial and semi-commercial, development and bridging finance among its lending segments.
Retail savings
The group says its lending business is supported by the Kent Reliance and Charter Savings Bank retail savings franchises.
Brand decisions
- Specialist, segment-focused lending modelOther
Sources5 sources
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