Structuring a Luxury Purchase for Three Generations

Why Families Are Structuring Purchases This Way

The motivations behind a multigenerational purchase are rarely singular. Some families are responding to aging parents who want to remain independent but benefit from proximity to their adult children. Others are combining resources, grandparents, parents, and adult children each contributing capital, to acquire a stronger property in a stronger location than any one generation could afford alone. Still others are using a single purchase as a deliberate first step in a broader multi-generational wealth transfer strategy, positioning real estate as an asset that will eventually pass down rather than be sold and divided.

In our experience across Los Angeles County, this trend shows up most often in families with a strong California real estate holding already, often a parent's longtime home, who are looking to consolidate or upgrade rather than have adult children purchase separately in a market where entry-level luxury pricing has moved well beyond what a single household income can support. The result is a purchase decision that is as much a family governance conversation as it is a real estate transaction.

Property Features That Support Three Generations

The properties that work best for this kind of arrangement share a few characteristics. A main house paired with a legally permitted accessory dwelling unit or a detached guest house gives one generation, often grandparents or adult children, a genuinely separate living space rather than a bedroom within a shared home. Where an ADU is not present, a primary suite positioned on its own level or in its own wing of the main house can achieve a similar effect, giving each household its own entrance sequence, living area, and degree of acoustic and visual privacy.

Lot size and layout matter more in this scenario than in a typical single-household purchase. Properties with generous setbacks, multiple outdoor gathering areas, and separated parking access tend to reduce daily friction points between generations. We often walk multigenerational buyers through inspection findings with this lens specifically in mind, since the mechanical and structural condition of a secondary unit deserves the same scrutiny as the main house, a topic we cover in depth in our guide to what a luxury home inspection actually examines.

Title-Vesting Options and What They Mean

How title is held has significant consequences for control during life and transfer at death, and it is one of the most important decisions in a multigenerational purchase. Joint tenancy with right of survivorship passes a deceased owner's interest automatically to the surviving joint tenants, bypassing probate, but it treats all owners equally regardless of their financial contribution and can create unintended results if the family's intentions are more nuanced than equal ownership.

Tenancy in common allows each generation to hold a defined percentage interest reflecting their actual financial contribution, and that interest passes according to each owner's individual estate plan rather than automatically to the co-owners, which often better reflects how families actually want to allocate value. Many families instead choose to hold title through a family trust or a limited liability company, which can offer more sophisticated control over decision-making, succession, and eventual sale, while also aligning with broader estate and asset protection planning. None of these choices is inherently correct. The right answer depends entirely on the family's goals, contribution structure, and existing estate plan.

Financing a Multigenerational Purchase

Financing structures for these purchases vary based on each generation's financial position and credit profile. Co-borrowing, where two or more family members appear on the same loan, can strengthen a loan application by combining income and assets, but it also means each borrower's credit and financial standing become tied to the others' payment history for the life of the loan. Gift funds, commonly used when one generation is contributing a down payment on behalf of another, must be properly documented with a lender-compliant gift letter and should be discussed with a tax advisor given annual and lifetime gift tax exclusion considerations.

Some families instead structure an intra-family loan, with one generation lending funds to another under a formal promissory note bearing an appropriate interest rate, rather than gifting the funds outright. This approach can preserve certain estate planning flexibility and clarity of expectations, but it requires careful drafting to be respected by tax authorities as a genuine loan rather than a disguised gift. A mortgage advisor experienced in multigenerational and jumbo lending scenarios can help model which structure fits best, a conversation worth pairing with a full look at closing cost planning for a purchase of this scale.

Prop 19 and Estate Planning Coordination

California's Proposition 19 significantly narrowed the circumstances under which a parent can transfer property to a child without triggering a full property tax reassessment, generally now limiting the favorable parent-child exclusion to a family's primary residence and only up to a set value threshold above the transferred property's existing taxable value, with additional conditions. For a family purchasing a new property intending for it to eventually pass to the next generation, understanding these rules at the time of purchase, not decades later, can meaningfully affect the eventual property tax outcome for the generation that inherits it. We cover this in more detail in our dedicated piece on Prop 19 property tax strategy.

Because title vesting, financing structure, and eventual transfer intentions are so interconnected, we strongly recommend involving an estate planning attorney before the purchase closes, so that how title is held today is deliberately aligned with how the family intends the property to pass in the future, rather than reconciling a mismatch after the fact.

Getting the Right Advisors at the Table Early

A multigenerational purchase touches real estate strategy, mortgage structuring, tax planning, and estate law simultaneously, and the families who navigate it most smoothly are the ones who convene their advisors together, early, rather than sequentially after decisions have already been made. As your broker, our role is to help identify properties that genuinely support this kind of living arrangement and to coordinate timing with your lender and legal counsel so that every piece of the structure is considered before you are under contract. Explore our current inventory of properties suited to multigenerational living on our property search page, or reach out to discuss your family's specific goals.

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