Updated:
South Street Capital
South Street Capital was established in 2013 by James Harrison-Topham, Antony Thesiger and Wendell Harris. The founders built their initial capital through UK...
South Street Capital
South Street Capital was established in 2013 by James Harrison-Topham, Antony Thesiger and Wendell Harris. The founders built their initial capital through UK commercial real estate transactions before formalising the multi-family office to serve institutions, families and trusts. The firm concentrates on income-producing UK real estate. It acquires, develops and manages industrial estates and commercial properties through direct mandates and asset-management agreements. Confirmed holdings include Southmoor Industrial Estate in Manchester, Dunchurch Trading Estate in Rugby and Hunt End Industrial Estate in Redditch. Geographic coverage centres on the United Kingdom with emphasis on the North of England and Midlands. The firm also executes lease regears and selective sales, such as the 2025 disposal of Dunchurch Trading Estate for £6.89 million. South Street Capital reports 3.35 million square feet under management and 329 tenants as of 31 March 2025. The team includes Helen Macrow as Director of Asset Management and Steven Vaughan as Director. Additional offices operate in the North of England. Wendell Harris passed away in June 2023. The firm delivered performance results for the financial year ending March 2025. The multi-family office structure separates client mandates from the founders’ personal holdings while retaining in-house control over sourcing, financing and reporting. This integrated model allows direct execution across the real-estate lifecycle without reliance on external fund vehicles.
General information
Firm type
Multi Family Office
Year founded
2013
Location
Region
Europe
Country
United Kingdom
City
London
Corporate office
London, England, United Kingdom
Additional offices
North of England
Principals
James Harrison-Topham
CEO and Founding Shareholder
Antony Thesiger
Director and Partner
Wendell Harris
Co-founder
Sector focus
Frequently asked questions
Who runs investment decisions at South Street Capital?
James Harrison-Topham serves as CEO and founding shareholder. Antony Thesiger acts as Director and Partner with focus on industrial strategy. The senior team includes Helen Macrow for asset management.
How does South Street Capital source proprietary deal flow?
The firm sources UK commercial real estate directly through banking, development and corporate-finance networks built over multiple market cycles.
Is South Street Capital structured as a single family office or does it operate more like a venture firm?
It operates as a multi-family office that coordinates mandates for multiple global families, institutions and trusts rather than a single-family vehicle.
Does South Street Capital participate in fund commitments or only direct deals?
The firm executes direct acquisitions, asset management and selective sales on behalf of clients rather than committing to third-party funds.
What investment stages does South Street Capital typically target?
It targets income-producing assets and executes across acquisition, development, lease management and disposal stages within UK commercial real estate.
Where does the underlying wealth come from?
The firm originated from partners’ capital generated through UK commercial real estate transactions.
What is South Street Capital’s known posture on co-investments alongside external GPs?
The firm provides supporting services to family-office investors and coordinates with their professional advisers but does not describe participation in external GP-led co-investments.
Profile maintained by Altss using OSINT (open-source intelligence), regulatory filings, licensed data partners, and verified direct submissions. Read the methodology. Last updated: . Continuous refresh with full update cycles at least every 30 days.
Need institutional-grade insight on family offices?
Altss delivers:
Prefer a guided tour?
We’ll walk you through: