Everything about buying a duplex, triplex, fourplex, or house + ADU with co-buyers in Los Angeles, where everyone owns their own home and shares only the property. Organized as the questions every first-time co-buyer actually asks, in the order you'll ask them.
Updated July 2026 · Figures change - we verify current terms on your strategy call
Before the how, the why. LA's housing prices demand that we think creatively about homeownership - and owning together is the creative model that actually works.
Co-buying is simple: two or more people buy a property together. You pool your resources to own real LA property - and with CoBuy LA, every property contains separate homes, so each person gets a home of their own. You share the investment, not your living space.
Every rent check builds your landlord's wealth. Priced out of buying alone, most Angelenos hand over $30,000–$45,000 a year with nothing to show for it. Co-buying flips that: together you can actually afford to own, and every monthly payment builds your equity, in your home.
Homeownership doesn't have to mean isolation behind a fence. Co-owning puts people you chose next door: neighbors who collect your packages, watch your dog, and actually know your name. It's collective care and support, designed in from day one - with your own front door to close whenever you want.
One shared yard becomes a garden. Tools, ladders, and lawnmowers get bought once instead of twice. Pet care, childcare, carpools, and "can you grab my mail?" become built-in. Sharing the property's costs - insurance, maintenance, taxes - makes everything cheaper per person, too.
What co-buying actually is, what you own, and whether it fits your life.
Yes. Every CoBuy LA property contains two to four fully separate homes: a duplex, a triplex, a fourplex, or a house with an ADU. You get exclusive rights to your own home: your own front door, kitchen, bath, and often your own yard or parking. Nobody shares your living space. Ever.
What you share is the property itself: the lot, the roofline, the driveway. You and your co-buyers own it together, and a written co-ownership agreement assigns each owner their specific home and spells out all the rules before you buy. Your home is yours to live in, improve, and eventually sell.
Day to day, it feels very similar: your own home, shared building decisions. Four real differences on paper:
Both paths put your name on title and you in your own home. The difference is how the loans and the paperwork are structured:
Rough rule of thumb: matched co-buyers and strangers lean toward separate loans; family and long-trusted friends optimizing for the least cash-in lean toward the shared mortgage. Stage 3 walks through the full decision, and we model both with real numbers for every group.
Yes. Tenancy in common is long-established California ownership; occupancy-based TIC structures have operated in San Francisco since the 1980s and have grown in LA over the past decade. Under California law, cities are not permitted to ban or regulate this kind of occupancy-assignment TIC - it is not a subdivision. The structure runs on a professionally drafted co-ownership agreement, and specialist attorneys have prepared thousands of them.
Right for: people with steady income and decent credit who are priced out of buying alone; pairs or small groups (friends, siblings, family, or a matched co-buyer) who want to own their own home, not rent forever; people planning to live in the home as their primary residence for at least several years.
Think twice if: your plans are likely to change within a year or two (job moves, relationships); you cannot tolerate any shared decisions (roof, insurance, and yard are still joint calls); or you would be financially stretched to the last dollar - co-ownership works best with a cushion.
The classic mistakes groups make: postponing hard conversations ("we'll figure it out later"), assuming life stays stable, using a short-and-simple agreement, and informal "we'll all pitch in" management. The whole CoBuy LA process is designed to prevent all four.
Both work. Many co-buys are friends, siblings, or family members. If you're serious but solo, we maintain a pool of pre-approved LA buyers and introduce compatible ones, matched only on financial and practical fit: budget, financing readiness, target neighborhoods, timeline, equity split, and hold horizon. Never on personal characteristics. You meet, you decide, and no match proceeds without a full agreement in place. More on matching →
Yes, and it's one of the best LA configurations. One owner takes the main house, the other takes the ADU (or a new ADU is built as part of the plan). Same TIC title, same agreement, same "everyone has their own home" outcome. Two bonuses: an SFR+ADU is legally a single-unit property, which can unlock conventional financing with as little as ~3% down on a shared loan, and it plugs directly into our construction and ADU/SB9 expertise - we can evaluate whether a lot supports adding a second home.
TIC has no survivorship: your interest is yours to leave to whomever you choose (will, trust, heirs). Your heirs step into the agreement, which also gives the group orderly options (like a right of first refusal) so nobody ends up co-owning with a surprise. Estate planning details belong in your attorney conversation.
What to look for, where, and how a group gets ready to shop.
Neighborhoods with real inventory: Highland Park, Eagle Rock, Glassell Park, El Sereno, Mount Washington, Silver Lake, Echo Park, Los Feliz, Mid-City, West Adams, and the Pasadena/Altadena edge. We source candidates through our own search platform and verify each home's per-unit size against county records before you tour (listings often only show building totals).
The alignment conversation is the highest-value hour in the whole process. Before touring anything, a group should align on:
We run this as a structured session with every matched group, and the answers flow straight into the agreement.
Openly and early. Standard practice: each co-buyer shares proof of funds for their down payment, pre-approval or income documentation, and a credit picture. It can feel awkward; it is also exactly what protects you, especially on a shared mortgage where each person's reliability affects everyone. In the CoBuy LA pool, every member is pre-approved before matching, so the baseline vetting is already done.
Careful here. Many LA multifamily buildings built before October 1978 fall under the LA Rent Stabilization Ordinance (RSO), which tightly restricts removing tenants, including owner move-ins, with real costs and rules. This is one of the most important screens we run: the cleanest co-buys are delivered vacant or already owner-occupied. Tenant-occupied RSO buildings need an attorney-reviewed plan before anyone falls in love with the property. We flag year-built and occupancy on every candidate.
Buying an existing TIC interest (e.g., one home in a building that's already a TIC community): the agreement exists, you review and join it, and you finance just your interest. Forming a new TIC (our specialty): your group buys a regular duplex/tri/four or house+ADU together, and the attorney drafts your agreement as part of the purchase. Forming new opens the entire multifamily market to you, not just the small stock of existing TIC listings.
Whole-building, not just your unit: roof, foundation, plumbing, electrical, sewer, seismic condition, plus each home's interior. You are buying a share of the entire structure, so a surprise roof or foundation bill is a shared bill. With a construction background, this is where we add unusual value: we walk the property and give you a frank read on what it actually needs and costs before you commit.
Decide it up front and write it into the agreement. Long-term renting of your home is commonly allowed with conditions (and note: some fractional lenders require owner-occupancy, so your loan may have a say). Short-term rentals are separately restricted by LA's home-sharing rules, which generally only allow STR in your own primary residence. Best practice: the agreement states exactly what's allowed, and everyone signs knowing the policy.
The single biggest decision in any co-buy: separate loans, or one shared mortgage. Everything else follows from this choice.
Each owner gets their own loan - their own note and deed of trust, secured only by their percentage interest. Your payment is your business. If a co-owner defaults, the lender's only recourse is that owner's share: your home and credit are untouched. You can also sell or refinance your interest independently.
Typical terms (as of mid-2026 - verify live, this market moves):
The pool is small and it changed recently, so beware stale lists online:
LA access is real but thinner than SF - this is exactly why we maintain the lender relationships so your group doesn't burn weeks hearing "no" from banks that don't do this.
All owners go on one loan together with any mainstream lender. The co-ownership agreement then assigns each owner their home and their share of the payment (shares can differ - the math follows each person's price and down payment).
Why groups choose it:
The trade-off, stated honestly: you are jointly and severally liable - each of you is legally on the hook for the whole payment, a missed payment hits everyone's credit, and the full payment counts in each person's debt-to-income on any future loan. The group qualifies together, so the weakest credit profile affects everyone's pricing. And exits are collective: releasing one owner generally means refinancing or selling.
A shared loan is safe only with structure. The standard protections, all written into the agreement:
| Separate TIC loans | One shared mortgage | |
|---|---|---|
| Down payment | 15–25% | 3.5–5% possible |
| Rate | ~0.5–1% higher | Standard market |
| 30-yr fixed | Rare (mostly ARMs) | Standard |
| Qualifying | Each person alone | Group together |
| If a co-owner defaults | Your home is untouched | Everyone's credit and home at risk (mitigated by guardrails) |
| Selling your share | Independent | Usually needs group refi or sale |
Rules of thumb: strangers or matched co-buyers → lean separate loans (independence matters most when history is short). Family or long-trusted friends optimizing for lowest cash-in → shared mortgage with full guardrails. Cash-light groups → shared mortgage or the house+ADU configuration. We run your group's actual numbers both ways on the strategy call.
Percentages are usually set by relative value or square footage of each home (the front 3+2 carries a bigger share than the rear 1+1). Contributions can be unequal - 60/40 or 70/30 are normal.
Key point most people miss: in a well-drafted agreement, your percentage does not dictate your resale price. You sell your home's interest at its own market value. Percentages matter for taxes and shared costs; your home's value is its own.
The document that makes the whole thing safe. Drafted by a specialist attorney before any offer - that sequencing is non-negotiable with us.
The TIC / co-ownership agreement is the contract among owners that assigns each person their home, allocates every cost, and pre-decides every hard scenario: defaults, exits, death, disputes. Specialists describe it as an insurance policy against expensive disputes, and the data backs the approach - the leading CA practice reports a dispute rate under 2% across thousands of agreements precisely because the documents are comprehensive. Short-and-simple agreements are how co-ownership horror stories happen: ambiguity is what people fight over.
A California TIC specialist attorney drafts it - one attorney typically papers the group, and any owner can hire independent review counsel. Budget roughly $2,500–$5,000 for a proper 2–4 owner occupancy-based agreement (the leading specialist has quoted ~$2,400 flat; confirm current pricing), and about 1–3 weeks. Split across the group, it is the cheapest insurance in real estate. Note: the agreement itself isn't recorded (that would create an illegal subdivision) - instead a memorandum of agreement is recorded so the world has notice it exists.
The proven pattern is a four-tier hierarchy: (1) mandated functions - roof repair, taxes, essential bills - can never be blocked by a holdout; (2) delegated authority - routine operations handled by a designated manager/owner; (3) majority vote - normal decisions; (4) supermajority or unanimity - selling the building, refinancing, major renovations. Most day-to-day life requires no votes at all: your home is yours.
The agreement pre-decides it: a cure period (typically 10–15 days), then the other owners may advance the shortfall, and that advance becomes a lien on the defaulting owner's equity, accruing interest. Continued default escalates: suspended voting rights, then a forced buyout of the defaulter's interest at a defined discount, or forced sale. With separate TIC loans, a mortgage default only ever risks the defaulter's own share. This machinery existing on paper is precisely why it almost never has to be used.
Co-owners get the same core homeowner tax benefits - with a few mechanics worth understanding. Confirm everything here with a CPA; this is education, not tax advice.
Yes. Each co-owner deducts their own share of mortgage interest and property taxes actually paid. With separate fractional loans it's the cleanest possible: you have your own loan and your own Form 1098. On a shared mortgage, owners deduct what they actually paid - keep clean records of who paid what (the group account makes this easy). Standard caps (the $750k acquisition-debt limit, SALT limits) apply per your situation - CPA territory.
The county assesses the property as one parcel with one bill. The agreement splits it - and a well-drafted one allocates by each owner's own purchase price, not flat percentages. Why that matters: under Prop 13, when a co-owner sells, only the sold share is reassessed to market value; everyone else keeps their original tax base. Purchase-price allocation means a co-owner's later sale (at a higher price) raises their buyer's share of the bill, never yours. Monthly dues typically bank each owner's tax share so the bill is always funded.
This is a headline advantage. Because you own and live in your own home, each co-owner can independently qualify for the primary-residence capital-gains exclusion - up to $250,000 of gain tax-free ($500,000 married filing jointly) - on the sale of their interest, if they meet the 2-of-5-year ownership and use tests. Compare that to a landlord holding a whole fourplex, who can only shelter the slice they occupied. Owner-occupancy is doing real tax work in this model.
The mechanics of getting keys, and what shared ownership feels like day to day.
One escrow for the property. The deed conveys each buyer their undivided percentage "as tenants in common." With fractional loans, each lender records a deed of trust against only its borrower's interest, and each owner gets title insurance on their share. With a shared mortgage it's a completely standard closing - one loan, all names. The agreement is signed before or at closing, and a memorandum of it is recorded. We coordinate the whole sequence: offer, inspections, attorney, lender(s), escrow.
Like a small condo association: one master policy on the whole building (property + liability, all owners named, cost shared through dues), plus each owner carries a condo-style contents/interior policy for their own home. In LA, also have the earthquake conversation as a group - coverage is optional and priced, but the decision should be deliberate, not accidental. Fractional lenders will require proof of the master policy.
Dues typically cover: property-tax reserves, master insurance, shared utilities (if any), common maintenance, and a reserve fund. Unlike a condo HOA there's no management company overhead by default, so dues are usually modest - a few hundred dollars a month per owner is common, sized to the actual building. Your own home's interior, your utilities, and your loan are yours directly.
Two buckets: a maintenance reserve sized to the building's real condition (informed by your inspections - an older roof means a bigger reserve), and on shared-mortgage deals a separate default reserve of several months of the full payment. Kept in a segregated group account with transparent bookkeeping. Boring, and the single best predictor of a happy co-ownership.
The same frictions as any duplex or condo - except you chose your neighbor, you both signed the same house rules, and the agreement has an enforcement path (notice, fines, and mediation → arbitration as the backstop). In practice, groups that did the alignment work up front rarely get here; the agreement exists so that if it happens, there's a process instead of a feud.
The questions that matter most, asked least. Every good co-buy is designed from the exit backwards.
Yes - a core TIC principle is that each owner may sell their interest at any time, at market value, on the open MLS like any home. The agreement may give co-owners a right of first refusal (they can match an outside offer, not block your sale). With fractional financing, your sale doesn't involve your co-owners' loans at all: your buyer brings their own fractional loan, yours gets paid off, done.
With separate TIC loans: no. Your buyer qualifies for their own fractional loan against the interest they're buying; your co-owners are spectators. (Some fractional loans are even assumable, a real selling point in high-rate years.) With a shared mortgage: this is the structural weak point - adding/removing a borrower generally means the group refinances or the buyer's share is handled within a group transaction. Another reason stranger-matched groups lean toward separate loans.
Yes, and the agreement pre-writes the formula so it's arithmetic, not a negotiation-turned-argument: typically appraised market value of your interest (not your raw percentage), minus your share of selling-cost allowances and any outstanding advances/liens, on a defined timeline (commonly 90–120 days, since a buyout usually rides on a refinance). Voluntary exits price at full market value; default-triggered buyouts often carry a defined discount.
This is why the exit machinery exists. Your options stack: rent out your home (if the agreement and your loan allow), sell your interest, or take a buyout from co-owners. The agreement's job is making every one of those paths clean and pre-priced. Our rule in structuring: assume somebody's life will change - because across any 5-7 year hold, somebody's will.
Honest answer: TIC homes have historically sold at a discount to comparable condos (that's your buying advantage), and in San Francisco - the mature market - that gap narrowed as TIC became familiar and financing improved, rewarding early buyers. LA is earlier on that curve. What we can say without a crystal ball: you're buying real LA property at a meaningful discount to condo pricing, living in it (so it's paying you back in avoided rent every month), with full homeowner tax treatment. We'll never pitch it as a guaranteed-appreciation scheme - it's a home first.
A whole-building sale (needing the supermajority/unanimity defined in your agreement) splits proceeds by the appraised value of each interest - again, not raw percentages. Condo conversion in LA is rare, discretionary, and slow; treat it as a possible someday-bonus, never the plan. The agreement should say whether the group would ever pursue it and who pays.
A free 30-minute strategy call: your budget, your neighborhoods, both financing paths modeled, and an honest read on whether co-buying fits. Solo? Ask about the matching pool.
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