A co-owner who pays to improve shared property can be repaid in a partition, even if the other owner never agreed to the work. In Ventre v. Tiscornia (1913) 23 Cal.App. 598, 605, the Court of Appeal held that when one co-owner in good faith pays for permanent improvements needed to preserve the property, the court must account for that cost before partition is decreed. More than a century later, Ventre remains one of the most cited California cases on reimbursement for improvements in a partition action.
Why Ventre v. Tiscornia Matters
Co-owners rarely contribute equally. One owner replaces the roof, fixes the drainage, or makes the property rentable, while the other contributes nothing and later shares in the benefit. When the co-ownership ends in a partition action, the owner who paid wants that money back.
Ventre answers two questions co-owners ask most often. First, does the other owner have to agree to the improvement? No, not when the improvement was necessary and the other owner shared in its benefits. Second, can the court simply divide the property or its value as if the improvement were never made? No. The court must count the cost of the improvement first.
The Facts: A Farm, a Flooding Creek, and a 2,000-Foot Bulkhead
Stefano Ventre and Antonio Tiscornia bought about twelve or thirteen acres together as tenants in common and farmed vegetables on the land as partners. After the partnership ended, Tiscornia used the entire property for several years and paid Ventre $25 a month. The two owners later joined in a ten-year lease of several acres to another farmer at $60 a month. (Ventre, at p. 600.)
While he was in possession, Tiscornia paid for two improvements on his own:
- Leveling. He leveled four or five acres at a cost of about $500 so overflow from a creek running through the property would stop carrying away the soil. Before the leveling, that land produced no rent; afterward, it was leased for ten years. (Ventre, at pp. 600–601.)
- A bulkhead. He built a fence-like bulkhead three or four feet high and about 2,000 feet long, at a cost of about $1,000, to keep winter storm waters from flooding and washing away much of the tract. (Ventre, at pp. 601–602.)
Ventre paid nothing toward either improvement, but he collected half of the increased rent. When Ventre sued for partition, Tiscornia asked the court to charge Ventre his share of the improvement costs. The trial court allowed Tiscornia only $100 for the leveling and nothing for the bulkhead. (Ventre, at pp. 600–601.)
The Holding: Count the Cost of Necessary Improvements Before Partition
The Court of Appeal reversed. Tiscornia’s testimony about why the work was needed and what it cost was not contradicted. Ventre testified only that he could have done the work faster. He never said the work was unnecessary, and he never said the money was not spent. (Ventre, at pp. 602–604.)
The court then explained why the lack of consent did not matter. A partition action is a case in equity, and a person who asks a court for fairness must treat the other side fairly. As the court put it, “one who seeks equity must do equity.” (Ventre, at p. 605.) From that principle, the court stated the rule that California courts still apply:
“[W]here it is shown that one cotenant in common has, in good faith, with or without the consent of his cotenant, expended money in making permanent improvements which were necessary to the preservation of the common property, partition should not be decreed without first counting the cost of such improvements and making a suitable allowance for the same.”
Ventre v. Tiscornia (1913) 23 Cal.App. 598, 605
The court sent the case back for a new trial on the improvements alone, so Tiscornia’s claim could be decided in line with the evidence. (Ventre, at p. 607.)
Ventre also described what should happen when an improvement increases the property’s rental value. Because the improvements were necessary and raised the rent, Ventre “should have been put to his election either to contribute equally to the undisputed cost of the improvements, or else relinquish all claim to a share of the increased rentals resulting therefrom.” (Ventre, at p. 606.)
In plain terms, a co-owner cannot take half of the extra rent an improvement produces while refusing to pay any of its cost. The court called that result “manifestly” inequitable. (Ventre, at p. 607.)
The Limit: Improvements Made as an Ordinary Tenant
The court noted one situation where the rule does not apply. Co-owners can agree to a landlord-and-tenant relationship. If one owner rents from the other and improves the property only to run that owner’s own business, those improvements generally cannot support a claim for contribution in the partition, unless the lease covers them. That limit did not apply in Ventre because the case was tried only on the owners’ rights as tenants in common. (Ventre, at p. 606.)
How Ventre Applies in California Partitions Today
Today, Code of Civil Procedure section 872.140 (CCP 872.140, the compensatory adjustment statute) allows the court in a partition to “order allowance, accounting, contribution, or other compensatory adjustment among the parties in accordance with the principles of equity.” That is the same equitable approach Ventre applied in 1913.
Later courts have built on Ventre. Citing it, the court in Mercola v. Chester (1950) 97 Cal.App.2d 140, 143, explained: “Even though one cotenant does not consent to the making of an improvement, since an action for partition is essentially equitable in its nature, a court of equity is required to take into account the improvements which another cotenant, at his own cost in good faith, placed on the property which enhanced its value and to award such cost to him.” And in Wallace v. Daley (1990) 220 Cal.App.3d 1028, 1035–1036, the court confirmed that every partition includes a final accounting, with credits for “improvements that enhance the value of the property.” Our summary of Wallace v. Daley covers that accounting in more detail.
For a co-owner who paid for improvements, a few practical points follow from these cases:
- Keep the receipts. Tiscornia won because his testimony about the cost was detailed and went unchallenged. Invoices, contracts, and bank records make that proof easier.
- Show why the work was needed or how it added value. Ventre involved improvements necessary to preserve the land; Mercola extends the rule to good-faith improvements that enhanced the property’s value.
- Expect repayment from the sale proceeds. When the property is sold, credits like these are usually paid before the remaining money is divided. See how proceeds are divided after a partition sale.
- Separate improvements from ordinary repairs and your own labor. Courts treat them differently. Our posts on recovering repairs and improvements and the value of your own labor explain the differences.
If you are considering work on the property now, our guides on improvements without co-owner consent and making improvements during a partition discuss timing. For the full range of credits a co-owner can claim, see our guide to partition offsets, credits, and reimbursements.
Get Credit for What You Put Into Your Co-Owned Property
If you have paid more than your share to preserve or improve a co-owned property, a partition action can end the co-ownership and make sure those costs are counted before the money is divided.
Talkov Law handles California partition actions. With 12 full-time partition attorneys and experience in over 650 partition actions throughout California, our team can document your improvement costs, present them to the court, and guide you through the sale and distribution of proceeds. Call (877) PARTITION (727-8484) or contact us online to discuss your co-owned property.










