Diane Keaton’s Sullivan Canyon estate sold on August 18, 2026 for $18,000,000.
Much of the coverage still describes it as under contract at $22.9 million. The closed record says otherwise, and the gap between those two numbers is the most useful thing about this sale.
What did Diane Keaton’s house actually sell for?
The verified figures, from the closed MLS record:
- Sale price: $18,000,000
- List price: $22,900,000
- Sale-to-list: 78.6%
- Closed: August 18, 2026 · in contract July 14, 2026 · listed June 12, 2026
- Days on market: 32
- 9,206 square feet · 5 bedrooms · 8 baths · 28,247 square foot lot
- $1,955 per square foot
Basis: CRMLS record 26846395, 13215 Riviera Ranch Road, Los Angeles 90049, status Sold, sold date 2026-08-18. Verified against the closed tape, not press reporting.
Note the size figure. Published accounts have variously put the house at 8,000, “more than 9,000,” and 9,200 square feet. The MLS record says 9,206. Where coverage disagrees, the closed record is the one to use.
How far below the original ask was that?
This is where the sale becomes a market data point rather than a celebrity story.
Keaton listed the home in March 2025 at $28,900,000. She reduced it that spring, withdrew it, and died on October 11, 2025. Her estate relisted at $22,900,000 in June 2026, and it closed two months later at $18,000,000.
From first ask to final price: $10.9 million, a 38% reduction.
Two things are worth separating there. The move from $28.9M to $22.9M was a repricing decision — a seller resetting to what the market would engage with. The move from $22.9M to $18M happened after the reset, against a live buyer, in 32 days.
A property that trades at 78.6% of a price already cut by $6 million was not mispriced by a small margin. It was priced from the top down — from what the home was worth to the person who made it — rather than from the tape up.
What does this say about the top of the Westside market?
One sale is one sale. But it lands against a measurable backdrop.
Across 56 single-family sales in 90049 closing between July 17 and October 14, 2026, the median was $4,357,500 at $1,350 per square foot. Inside the top quartile — sales at or above $7,775,000 — the median was $11,550,000 at $1,995 per square foot.
At $1,955 per square foot, this sale landed within the normal band for its tier. The house did not trade at a discount on a per-foot basis. It traded at a discount to its ask.
That distinction matters for anyone pricing a home at this level. The market was willing to pay a top-quartile rate. It was not willing to pay a premium for provenance on top of it.
Comparison basis: same CRMLS tape, zip 90049, status Sold, Single Family, n=56; per-square-foot figures from the 53 records carrying verified square footage. More detail in our read on luxury homes in Brentwood.
Why Sullivan Canyon?
The canyon is one of the few places inside Los Angeles with genuine equestrian infrastructure — riding trails, boarding, and a street pattern built around it rather than retrofitted. Lots are large, turnover is low, and the housing stock is heterogeneous in a way that makes per-foot comparison unreliable without matching on parcel.
That last point is the practical one. A 28,247 square foot lot set well back behind double gates is not comparable to a flats parcel of the same square footage, and a comp set that treats them as equivalent will mislead in both directions. In Sullivan Canyon, land and seclusion carry more of the value than finish level does.
Supply is the other constraint. Few homes trade here in a given year, which means a single sale can anchor the comp set for several seasons. This one now will.
What should a seller take from this?
Three things.
Provenance is not a line item. A beautifully made home by a known owner attracts attention and press. Attention is not the same as a higher clearing price, and this sale is the clean demonstration.
The first ask sets the frame for everything after. $28.9M did not just fail to sell. It established a public reduction history that the eventual buyer could see, and that history is part of why the close came in at 78.6% of a price that had already been cut.
Price from the tape up. At this level the per-foot band is knowable — $1,995 was the top-quartile median in this zip over the same period. A seller who starts there and adjusts for parcel, privacy and condition is negotiating from evidence. A seller who starts from what the home means to them is negotiating from a number the market never agreed to.
The TKG read
$18,000,000. 78.6% of ask. 32 days. $1,955 per square foot.
The per-foot number is unremarkable for a top-quartile Brentwood sale. The reduction is not. That combination — market-rate per foot, well under ask — is the signature of a home priced on story rather than on comparable sales.
Sullivan Canyon remains one of the most supply-constrained pockets on the Westside, and this closing will sit in its comp set for a long time. If you own there, the number that matters to you now is $1,955 per square foot, not $18 million.
If you want the current read on a specific Sullivan Canyon parcel against this comp, that is a conversation worth having before you set an ask.
Frequently asked questions
How much did Diane Keaton’s Sullivan Canyon house sell for?
$18,000,000, closed August 18, 2026, against a $22,900,000 ask — 78.6% of list, after 32 days on market. It had originally been listed at $28,900,000 in March 2025. Some coverage still reports it as under contract at $22.9 million; the closed MLS record (26846395) shows the completed sale at $18 million.
How big is the house?
9,206 square feet on a 28,247 square foot lot, with 5 bedrooms and 8 baths, per the MLS record. Published figures elsewhere range from 8,000 to 9,200 square feet; the closed record is the reliable source.
Where is Sullivan Canyon?
Sullivan Canyon sits in the hills above Brentwood on the Westside of Los Angeles, within the 90049 zip code and adjoining Pacific Palisades. It is one of the few areas inside the city with working equestrian trails and boarding, and it is characterised by large lots, heavy tree cover and very low turnover.
FAQ sources: questions 1 and 2 from Google related searches for this property (SERP-derived, sampled 2026-11-02); question 3 from the Search Console query “where is sullivan canyon” on theknightgroupla.com.
Jason Knight · Compass · DRE# 02133297. Transaction figures from CRMLS record 26846395 and a CRMLS tape pulled 2026-10-17 (zip 90049, Single Family, Sold, n=56). Listing history prior to 2026 is drawn from published reporting and may be incomplete. Market data is a snapshot and moves.