William Delafield Cook (1936–2015)
What is William Delafield Cook’s work worth?
As of 2 November 2026, OpeningBid has recorded 39 auction results for William Delafield Cook at 9 houses since 2005. Over the last 24 months the median price was $112,109 including buyer’s premium (middle half $3,262–$437,153, n=8). The auction record is $476,644 for Hillside I (2024, Deutscher and Hackett). Source: OpeningBid, an independent auction-results database.
| # | Work | Medium | Price | House | Sold |
|---|---|---|---|---|---|
| 1 | Hillside I, 2004 – 11 | Synthetic polymer paint on linen | $476,644 | Deutscher and Hackett | Nov 2024 |
| 2 | HILLSIDE I, 2004 – 11 | Synthetic polymer paint on linen | $438,660 | Deutscher and Hackett | Nov 2024 |
| 3 | Hillside I, 2004–11 | Synthetic polymer paint on linen | $436,650 | Deutscher and Hackett | Nov 2024 |
| 4 | A FRENCH CLIFF, 1979 | Synthetic polymer paint on canvas | $363,983 | Deutscher and Hackett | Feb 2022 |
| 5 | HILLSIDE, ELLERSTON, 1990 | Synthetic polymer paint on linen | $320,652 | Deutscher and Hackett | Jul 2022 |
| 6 | MOOTWINGEE, 1990 | Synthetic polymer paint on linen | $277,320 | Deutscher and Hackett | Feb 2022 |
| 7 | Bombo, 1982 | Synthetic polymer paint on canvas | $169,903 | Smith & Singer | Aug 2026 |
| 8 | WILLIAM DELAFIELD COOK — Gundagai Revisited 2006, 2006 | Synthetic polymer paint on canvas | $163,967 | Smith & Singer | Aug 2022 |
| 9 | Gate, 1973 | Synthetic polymer paint on canvas | $54,314 | Menzies Art Brands | May 2026 |
| 10 | KIMONO, 1998 | Synthetic polymer paint on canvas | $36,183 | Deutscher and Hackett | May 2017 |
| Medium | Sales | Median |
|---|---|---|
| Paintings | 16 | $109,141 |
| Works on paper | 5 | $8,615 |
| Size | Sales | Median |
|---|---|---|
| Large (over 120 cm) | 13 | $169,903 |
| Medium (50-120 cm) | 6 | $9,044 |
Data as of 2 November 2026 · Source: OpeningBid, 39 results from 9 houses · How we compute these figures
William Delafield Cook is an Australian artist with 49 auction lots recorded since 2005, median price $36,183. Some sold prices are hammer-only and exclude the buyer's premium; they are marked on this page. Some sold prices are not yet verified as premium-inclusive or hammer, and are marked on this page.
A work by William Delafield Cook sold in 2026 for $169,903, according to OpeningBid's index of auction results.
See the full William Delafield Cook record on OpeningBid — images, provenance, fair estimates and free sale alerts.
View William Delafield Cook on OpeningBid →What is a William Delafield Cook work worth?
Across 37 sold lots tracked by OpeningBid, the median price of a William Delafield Cook work is $36,183.
The median William Delafield Cook painting sells for $130,706 across 23 lots.
The median William Delafield Cook work on paper sells for $8,461 across 10 lots.
Prices are premium-inclusive where the house records them; hammer-only prices exclude the buyer's premium, and some prices are not yet basis-verified.
Price breakdown by category
| Category | Lots tracked | Median price | Record price | Sell-through | Last sale |
|---|---|---|---|---|---|
| Paintings | 24 | $130,706†‡ | $476,644 | 95.8% | 2026-08-25 |
| Works on Paper | 13 | $8,461†‡ | $17,147‡ | 76.9% | 2024-11-25 |
| Masterpieces (top of market) | 14 | $267,476†‡ | $476,644 | — | 2026-08-25 |
† hammer price — buyer's premium not included. ‡ reported price — whether it includes the buyer's premium is not yet verified.
Price by size
Paintings
| Size | Sold lots | Typical range (p25–p75) | Median | Record |
|---|---|---|---|---|
| large (over 120 cm) | 19 | $40,990–$309,312†‡ | $169,903†‡ | $476,644 |
† hammer price — buyer's premium not included. ‡ reported price — whether it includes the buyer's premium is not yet verified.
Works on Paper
| Size | Sold lots | Typical range (p25–p75) | Median | Record |
|---|---|---|---|---|
| medium (50–120 cm) | 8 | $3,025–$11,383†‡ | $6,485†‡ | $17,147‡ |
† hammer price — buyer's premium not included. ‡ reported price — whether it includes the buyer's premium is not yet verified.
Size is the work's longest edge. Cells appear only with at least 5 sold lots.
Notable results
| Medium | Year | Price |
|---|---|---|
| Paintings | 2024 | $476,644 |
| Paintings | 2024 | $436,650 |
| Works on Paper | 2013 | $17,147‡ |
| Works on Paper | 2013 | $17,113 |
‡ reported price — whether it includes the buyer's premium is not yet verified.
The highest recorded result in each medium. See the full sale history on OpeningBid.
Frequently asked questions
What is a William Delafield Cook worth?
Across 37 sold lots tracked by OpeningBid, the median price of a William Delafield Cook work is $36,183. The median William Delafield Cook painting sells for $130,706 across 23 lots. The median William Delafield Cook work on paper sells for $8,461 across 10 lots. Prices are premium-inclusive where the house records them; hammer-only prices exclude the buyer's premium, and some prices are not yet basis-verified.
What is the average price of a William Delafield Cook painting?
Based on 23 sold lots tracked by OpeningBid, the median auction price of a William Delafield Cook painting is $130,706. Prices are premium-inclusive where the house records them; hammer-only prices exclude the buyer's premium, and some prices are not yet basis-verified.
What is William Delafield Cook's most expensive painting?
The highest price recorded at auction for a William Delafield Cook painting is $476,644.
What is the average price of a William Delafield Cook work on paper?
Based on 10 sold lots tracked by OpeningBid, the median auction price of a William Delafield Cook work on paper is $8,461. Prices are premium-inclusive where the house records them; hammer-only prices exclude the buyer's premium, and some prices are not yet basis-verified.
What is William Delafield Cook's most expensive work on paper?
The highest price recorded at auction for a William Delafield Cook work on paper is $17,147. Whether that record price includes the buyer's premium is not yet verified.
What is the average price of a large William Delafield Cook painting?
Based on 19 sold lots, the median auction price of a large William Delafield Cook painting (large (over 120 cm)) is $169,903, according to OpeningBid's index of auction results. Prices are premium-inclusive where the house records them; hammer-only prices exclude the buyer's premium, and some prices are not yet basis-verified.
What is William Delafield Cook's auction record?
William Delafield Cook's auction record is $476,644, set in 2024.
See the full William Delafield Cook record on OpeningBid — images, provenance, fair estimates and free sale alerts.
View William Delafield Cook on OpeningBid →