Buying a Vacation Home With Friends or Family in California

Buying a vacation home with friends or family in California is legal, and it works best when the group decides three things before it makes an offer: how title will be held, how costs and calendar time will be shared, and how anyone can get out. The common choices are a tenancy in common or an LLC, backed by a written co-ownership agreement. The usual trouble spots are the mortgage, a co-owner who wants to sell when the others don’t, and local rules on renting the house or splitting its use.

This post covers private, do-it-yourself co-ownership of a wine country or coastal second home, the kind a few couples or siblings set up themselves. Managed fractional programs are a different product with their own legal fights in Napa and Sonoma; our guide to Pacaso co-ownership covers that model. For buying a getaway on your own, see our post on buying a second home in Sonoma County.

Four ways to hold title together

California law starts from a simple default. Under Civil Code section 686, an interest created in favor of several people in their own right is an interest in common, unless it is declared a joint interest, acquired as community property or acquired by a partnership. In other words, if your deed says nothing else, you are tenants in common.

Civil Code section 683 defines a joint interest as one owned by two or more people in equal shares, by a title created by a single will or transfer. That equal-shares rule is one reason friends who contribute different amounts usually choose a tenancy in common or an LLC instead.

The LLC option in more detail

An LLC gives the group an operating agreement that governs voting, contributions and transfers of membership. It also costs money every year: the Franchise Tax Board charges every LLC doing business or organized in California an $800 annual tax, plus a separate fee once total California income reaches $250,000. Our guide to LLC versus personal title covers liability, insurance and loan issues in depth.

What the co-ownership agreement should cover

A deed says who owns the house. It says nothing about who gets the Fourth of July, who pays for the new roof, or what happens when one couple divorces. Put those answers in a signed agreement, prepared or reviewed by a real estate attorney, before closing.

• Ownership shares and capital. Who put in how much at purchase, and how later improvements change the shares.
• Monthly costs. Mortgage, property tax, insurance, utilities, maintenance and a reserve, with the split and the due date.
• Default. What happens if an owner stops paying: late fees, loss of calendar time, or a forced buyout.
• Scheduling. A rotation for holidays and peak weeks, booking windows, guest rules and how last-minute openings are shared.
• Decisions. Which choices need a simple majority and which need everyone, such as refinancing, renting or selling.
• Exit. How an owner sells a share, whether the others get the first chance to buy, how the price is set, and how long the buyout can take.
• Death, divorce and disability. Whether a share passes to heirs or a former spouse, or must be offered to the group.
• Disputes. Mediation first, then the agreed path, and a clause on partition, discussed below.

Financing a house with several buyers

A group that finances usually takes a single mortgage that every buyer signs. Each borrower is generally responsible for the whole loan, not just a share, so one co-owner’s missed payment becomes everyone’s problem and can show up on everyone’s credit.

Second-home loans have occupancy conditions. Fannie Mae’s Selling Guide says a second home must be a one-unit dwelling, occupied by the borrower for some portion of the year and suitable for year-round occupancy; the borrower must have exclusive control over it; and it must not be rental property, a timeshare arrangement, or subject to agreements that give a management firm control over occupancy. A rotation among unrelated co-owners, a rental program or a professional manager can raise questions under those rules, so describe the plan to your lender at the start.

Title in an LLC usually takes the purchase out of standard home-loan programs, so groups that want an LLC often pay cash, use a commercial or portfolio loan, or buy in their own names and decide on the LLC later with their lender’s consent. Our financing page and the post on second home versus investment property explain how lenders classify the same house.

Property tax when co-owners come and go

Under Proposition 13, the purchase sets a new assessed value for the whole house. Later changes among the owners can reset part of it:

• Buyouts between tenants in common. Revenue and Taxation Code section 65.1 provides that when an interest in a portion of a property changes hands, only the interest or portion transferred is reappraised. An interest worth less than 5% of the property’s total value and less than $10,000 is not reappraised, with transfers in the same assessment year added together.
• Membership changes in an LLC. Transfers of LLC interests generally aren’t a change in ownership of the house, with two big exceptions in section 64: one person or entity gaining more than 50% control, and, if the property went into the LLC in a proportional transfer, the original co-owners cumulatively transferring more than 50% of the interests.
• Passing the house to children. The Board of Equalization explains that Proposition 19 limits the parent-child exclusion to a family home that is the principal residence of the transferor and becomes the principal residence of the transferee, or to a family farm, and that the transfer of a rental home between parents and children would not qualify. The BOE page doesn’t mention vacation homes, but because of the principal-residence test, a second home used only for getaways generally won’t qualify. Our guide to Prop 19 and inherited homes covers the rules.

Deeds into or out of the group come with county change-in-ownership paperwork, so let escrow or your attorney handle transfers rather than recording a deed yourselves.

Renting it out when nobody’s using it

Some groups plan to cover costs with short-term rentals. Check the rules before you count on that income, because Wine Country and coastal jurisdictions vary sharply. Some cities cap or bar new vacation rentals, and some counties allow them only in certain zones or with a permit. See our guides to vacation rental rules in Napa County, Sonoma County and Marin County.

If you do rent, the agreement should say who manages bookings, how income and taxes are split, and how rental nights interact with owners’ calendar time. Renting also affects how the lender, insurer and tax rules classify the house.

When a group arrangement looks like a timeshare

California’s Vacation Ownership and Time-share Act defines a time-share plan broadly, in Business and Professions Code section 11212, as any arrangement, other than an exchange program, that gives the right to use accommodations for less than a full year during any given year, on a recurring basis for more than one year, whether by deed, membership agreement, lease or other means. The Act is aimed at plans offered for sale, and whether it reaches a private group that buys together and never markets shares is a question for your attorney.

Local zoning can matter more. St. Helena and the City of Sonoma have both restricted timeshare and fractional-ownership uses, as our Pacaso guide explains. A handful of friends on a shared calendar is not the model those rules targeted, but if your group plans to sell shares to outsiders, rotate a large number of owners or advertise the arrangement, ask the city or county planning department in writing whether the use is allowed at that address.

Planning the exit before you buy

Groups change: jobs move, kids grow up, and someone eventually wants their money back. Without an exit plan, the fallback for tenants in common is often a partition action, where a court divides or sells the property.

For partition actions filed on or after January 1, 2023, the Partition of Real Property Act applies to property held in tenancy in common where there is no agreement in a record binding all the cotenants that governs partition. That Act gives co-owners appraisal and buyout rights before a court-ordered sale, explained in our guide to partition actions in California. A written agreement that addresses partition lets your group choose its own rules instead, which is one more reason to sign one.

A workable exit clause usually sets out:

1. Notice that an owner wants out, in writing.
2. A valuation method, such as an independent appraisal, with each side able to get its own.
3. A window for the others to buy the share at that value.
4. If no one buys, the right to sell the share to an outsider the group approves, or to require a sale of the whole house after a set period.

Our post on siblings who disagree about selling a house shows how these disputes play out when no agreement exists.

This is general information, not legal or tax advice; have a California real estate attorney draft your co-ownership or operating agreement and a tax adviser review title, property tax and rental income before you buy together.

Questions people ask

Is it a good idea to buy a vacation home with friends?

It can work well when everyone agrees in writing on money, scheduling and exit before closing. The risk is highest for a group that skips the agreement and only discovers different expectations after a missed payment or a request to sell.

Should we use an LLC or a tenancy in common?

A tenancy in common is simpler and works with standard home loans. An LLC gives a single set of rules and can help with management, but it costs at least $800 a year in California tax and usually limits financing. Ask an attorney and tax adviser about your group.

Can several people be on one mortgage for a second home?

Yes, lenders commonly allow co-borrowers, and each borrower is generally liable for the full loan. Fannie Mae’s second-home rules require the borrower’s exclusive control and bar timeshare and management-firm arrangements, so explain the group’s plans to the lender.

Does the property get reassessed if one co-owner buys out another?

Usually the share that changes hands is reassessed, not the whole property, under Revenue and Taxation Code section 65.1. Very small transfers can be excluded, and LLC interests follow different rules.

What happens if one co-owner wants to sell and the others don’t?

Your agreement should control, with a buyout first. Without one, a tenant in common can usually file a partition action, and for cases filed since 2023 the Partition of Real Property Act gives the other owners appraisal and buyout rights.

Can we rent the house on Airbnb to cover costs?

Only where local rules allow it, and they vary widely across Napa, Sonoma and Marin. Check the specific address before you buy, and make sure the loan and insurance allow rentals.

Shopping for a shared second home?

We can help your group compare properties against its calendar and budget, check rental and use rules for each address, and keep the timeline workable for several buyers and a lender. Start with our buyer services. Diamond may refer you to partners we work with, such as attorneys or lenders; you’re free to choose any provider.

Sources & notes

• California Public Law: Civil Code section 686 (interests in common)
• California Public Law: Civil Code section 683 (joint interests)
• Franchise Tax Board: Limited liability company (updated March 5, 2026)
• Fannie Mae Selling Guide: B2-1.1-01, Occupancy Types
• California Public Law: Revenue and Taxation Code section 65.1 (partial interests)
• California Public Law: Revenue and Taxation Code section 64 (legal entity interests)
• California State Board of Equalization: Proposition 19
• California Public Law: Business and Professions Code section 11212 (time-share definitions)
• California Public Law: Business and Professions Code section 11211 (time-share act purposes and scope)
• California Public Law: Code of Civil Procedure section 874.311 (Partition of Real Property Act)

Last reviewed October 2026 by Matthew Martinez.