The Bostrom B-31 is a quintessential example of Scandinavian yacht design from the 1970s, representing a period when Swedish boatbuilding prioritized seaworthiness and structural integrity over maximum interior volume. Designed by Bruno Boström, the B-31 was produced in significant numbers—estimated at over 1,000 hulls—making it one of the most successful 31-footers in Northern Europe. It was uniquely offered both as a factory-finished yacht and as a high-quality kit for amateur completion, a factor that has led to a wide variance in interior finish quality across the secondary market. The yacht’s aesthetic is defined by its elegant, narrow beam and a distinctive reverse transom that gives it a sleek, timeless profile. Despite its age, the B-31 remains a popular choice for coastal cruising and even offshore passages, often cited by the B31-klubben as a reliable vessel for the demanding conditions of the Baltic Sea.
Bostrom B-31 Sailboats for Sale & Market Overview
- Make
- Bostrom
- Model
- B-31
- Builder
- —
- Designer
- Bruno Boström/Grandinsson
- Number Built
- 1000
- Production Year(s)
- 1973 - 1988
Below are the most recent Bostrom B-31 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) |
|---|---|---|
| Apr 2026 | 1 | $29,437 |
| Model | LOA | Median Price (USD) | Listings | Recent |
|---|---|---|---|---|
| Hallberg-Rassy 312 | 30.92' | $53,427 | 44 | 18 |
| Hallberg-Rassy 31 | 31.56' | $109,527 | 32 | 13 |
| Hallberg-Rassy Monsun 31 | 31' | $28,093 | 20 | 14 |
| Dufour 31 | 30.83' | $22,376 | 15 | 1 |
| Conyplex 31 HT | 31.17' | $22,965 | 15 | 6 |
| Westerly Berwick 31 | 31' | $19,569 | 12 | 7 |
| Granada 31 | 30.81' | $18,042 | 9 | 6 |
| CAL 31 | 31.5' | $10,500 | 9 | 2 |
| Bristol 32 | 32' | $16,900 | 5 | 0 |
| Bostrom B-31 | $29,437 | 1 | 1 |
| Country | Median Price (USD) | Listings (past 12 months) | Recent (90d) |
|---|---|---|---|
| Spain | $29,437 | 1 | 1 |
Frequently Asked Questions
- How much does a used Bostrom B-31 cost?
- The median asking price for a used Bostrom B-31 over the past 12 months is $29,437. Prices vary by condition, year, equipment, and location.
- How many Bostrom B-31 sailboats are for sale?
- We have tracked 1 Bostrom B-31 listings over the past 12 months, with 1 listed within the last 90 days.
- Are Bostrom B-31 prices going up or down?
- The median asking price for the Bostrom B-31 has remained stable over the last 3 months compared to the 12-month average.
- What are similar sailboats to the Bostrom B-31?
- Comparable models include the Hallberg-Rassy 312, Hallberg-Rassy 31, Hallberg-Rassy Monsun 31. See the comparison table above for pricing and availability.