The Sigma 33 OOD (Offshore One Design) stands as a landmark in British yachting history, a vessel that successfully bridged the gap between intense class racing and family cruising. Designed by the prolific David Thomas and built by Marine Projects (Plymouth) Ltd starting in 1978, the Sigma 33 OOD was the result of a Royal Ocean Racing Club (RORC) initiative to find a new offshore one-design. While it was famously not selected as the official RORC design—that honor went to the OOD 34—the Sigma 33 went on to significantly outsell its rivals, with approximately 450 units produced. It remains one of the most successful cruiser-racers ever launched, according to Yachting Monthly, prized for its robust construction and balanced hull lines.
Sigma 33 Ood Sailboats for Sale & Market Overview
- Make
- Sigma
- Model
- 33 Ood
- Builder
- Marine Projects Ltd.
- Designer
- David Thomas
- Number Built
- 400
- Production Year(s)
- 1979 - 1991
Below are the most recent Sigma 33 Ood sailboat listings (up to 10).
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| Source | Year | Make | Model | Price | Cabins | Heads | City | Country | Listing Date | |
|---|---|---|---|---|---|---|---|---|---|---|
DISCLAIMER: We are not affiliated with any external listing websites in any way. We simply aggregate publicly available listings to make it easier for buyers to find sailboats for sale. We cannot guarantee the accuracy of the listings, so please verify all information with the seller before making any decisions.
Market Overview
Price & Volume Trends
Monthly breakdown
| Month | Listings | Median Asking Price (USD) |
|---|---|---|
| Sep 2025 | 11 | $19,603 |
| Oct 2025 | 4 | $23,282 |
| Nov 2025 | 2 | $23,621 |
| Dec 2025 | 1 | $21,563 |
| Jan 2026 | 2 | $19,794 |
| Feb 2026 | 1 | $16,899 |
| Apr 2026 | 2 | $9,617 |
Median Price by Country
Listings by Country
Price Reduction Insights
9.1% of listings have had price reductions
Average discount: 15.1% off original price
| Model | LOA | Median Price (USD) | Listings | Recent |
|---|---|---|---|---|
| Sigma 33 Ood | $21,080 | 23 | 3 | |
| Oday 34 | 34' | $19,900 | 23 | 3 |
| Sigma 38 | 38.33' | $52,997 | 16 | 5 |
| Sigma 41 | 41' | $59,000 | 12 | 4 |
| Jeanneau Sun Odyssey 33 | 33.79' | $45,931 | 11 | 6 |
| Carter 33 | 32.58' | $32,976 | 9 | 5 |
| Contessa Ood 34 | 33.67' | $20,279 | 8 | 4 |
| Sigma 362 | 36' | $45,593 | 6 | 3 |
| Ranger 33 | 33.17' | $8,950 | 5 | 1 |
| Sigma 33 C | 32.5' | $12,167 | 1 | 1 |
| Charger 33 | 32.97' | $13,608 | 1 | 0 |
| Country | Median Price (USD) | Listings (past 12 months) | Recent (90d) |
|---|---|---|---|
| United Kingdom | $21,146 | 20 | 2 |
| Germany | $21,080 | 1 | 0 |
| Ireland | $27,028 | 1 | 0 |
Frequently Asked Questions
- How much does a used Sigma 33 Ood cost?
- The median asking price for a used Sigma 33 Ood over the past 12 months is $21,080. Prices vary by condition, year, equipment, and location.
- How many Sigma 33 Ood sailboats are for sale?
- We have tracked 23 Sigma 33 Ood listings over the past 12 months, with 3 listed within the last 90 days.
- Are Sigma 33 Ood prices going up or down?
- The median asking price for the Sigma 33 Ood has decreased by 42.28% over the last 3 months compared to the 12-month average.
- Where is the cheapest place to buy a Sigma 33 Ood?
- Germany currently has the lowest median asking price at $21,080, while Ireland is the most expensive at $27,028 — a 28% difference.
- Do Sigma 33 Ood listings get price reductions?
- About 9% of Sigma 33 Ood listings have had their price reduced, with an average discount of 15.1% off the original asking price.
- What are similar sailboats to the Sigma 33 Ood?
- Comparable models include the Oday 34, Sigma 38, Sigma 41. See the comparison table above for pricing and availability.