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Position

Founding director

Index

Property Investment, Finance & Management

Location

London

Advice type

Property investing

Short-term property finance

Asset Class

New build homes

Real estate

Client type

Family offices

HNW

Investors

Sector Focus

Real Estate

Project Finance & Services

Keir Chastney

Spear’s Review

Keir Chastney and business partner Giles Tagg worked together at a family office-backed lender before striking out on their own and founding Rubicon Capital in 2015.

Chastney specialises in providing investment opportunities to HNWs and family offices via fast and flexible mezzanine finance, helping to facilitate residential property developments in the London area and south-west England.

In late 2022, Chastney and Tagg launched Viridis Finance, a business dedicated to funding and promoting socially and environmentally responsible residential developments across the UK. Viridis offers loans from £500,000 upwards, all the way to £10 million, depending on the nature of the projects.

Rank: Top Recommended

Top Recommended 2026, Property Investment, Finance & Management

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