How much wealth does a family need before a single family office makes sense?

Start with complexity, not a headline number

There is no universal wealth level at which a single family office suddenly becomes the right choice. The better question is whether your family’s needs have outgrown the services and coordination available through existing advisers.

A single family office is a holistic way to manage the family’s balance sheet and related needs. That can include investment oversight, tax and legal coordination, governance, risk management, reporting, and planning for wealth transfer. A family with a straightforward portfolio and few administrative demands may not need a dedicated office, even with substantial assets. A family with operating businesses, real estate, multiple entities, several generations, or complex cross-border needs may benefit from more coordination at a lower level of wealth.

Compare the full cost with the value

Before setting up an office, estimate the people, systems, professional services, and oversight it will require. Then compare that cost with the value of having a team focused on your family, including better coordination, clearer decision-making, and more control over service providers.

For families in the $10 million to $100 million range, a lean or virtual family office can be a practical starting point. Keep core decision-making with the family, assign a clear person to coordinate the work, and use outside specialists where needed. This lets you build structure without immediately carrying the cost of a full in-house staff.

As the family’s needs grow, formalize governance and define who can select advisers, approve investments, and resolve conflicts. An investment committee or informal advisory group can help bring discipline to decisions, provided its role and accountability are clear.

Make the structure earn its keep

A single family office should solve identifiable problems. Write down what you want it to handle, what will remain with outside providers, how success will be measured, and who is responsible for implementation. Revisit those choices as the family’s assets, activities, and priorities change.

The right threshold is the point where a coordinated structure serves the family better than a collection of separate relationships, and where its cost is justified by the work it performs. Start with the functions you need, build a lean model, and expand only when the family’s circumstances support it.