Jupiter 30 Buyer's Guide
Shopping the brokerage market for a Jupiter 30 — also listed as the Jupiter 1/2 Ton — means looking at an Ericus Gerhardus van de Stadt–designed masthead sloop of early-1980s vintage, built by Jupiter Yachts in solid fiberglass with a fin keel and spade rudder. These are coastal and inshore boats rather than ocean racers, and the used fleet reflects that purpose in both layout and equipment.
Layouts on the Used Market
The Jupiter 30 carries five berths within a hull that is beamy for its length, with a length-to-beam ratio that makes the interior more spacious than most similar 30-foot designs. Expect a straightforward racer-cruiser arrangement suited to weekends afloat or short coastal passages rather than extended liveaboard use. The solid fiberglass construction and shaft-drive transmission are consistent across the class.
Equipment and Common Upgrades
On the used market, cabin heating and teak decks are commonly fitted, the two upgrades most often seen when these boats change hands. Heating is a practical asset for shoulder-season sailing in the markets where the boat is typically found, while teak decks are a cosmetic and traction improvement that a buyer should inspect for age and bonding. Beyond those, the boat's masthead rig and standard sail plan — mainsail, genoa, and spinnaker halyards of about 87.5 feet, with 3/8-inch sheets — are usually intact, and any rig changes should be evaluated against those original proportions.
What to Inspect
The capsize screening value of 2.13 confirms the boat was not built to ocean-racing standards anchor, so check that rigging and keel attachment match inshore rather than offshore intent. Verify the shaft-drive transmission and the solid fiberglass hull and deck for repairs, and confirm the five-berth layout is unmodified. Inspection should follow normal used-sailboat practice for a 1980s fiberglass sloop.
Availability and Buyer's Takeaway
The Jupiter 30 is typically found in the United Kingdom and the United States. For a buyer, the takeaway is a roomy, light-displacement racer-cruiser with predictable proportions.
- Confirm heating and teak decks are present and sound if those matter to you
- Inspect solid fiberglass hull and deck for prior repairs
- Verify shaft-drive transmission and masthead rigging match original specs
- Treat the 2.13 capsize screening value as a limit on offshore ambition
Price & volume trends
Monthly asking-price and listing-volume trends for the Jupiter 30. The line shows the median ask each month; the bars show how many listings appeared.
Monthly breakdown · 1 row
| Month | Listings | Median ask | Δ vs. last mo. |
|---|---|---|---|
| Apr 26 | 1 | $17,598 | — |
Where they're listed
Jupiter 30 listings appear across 1 country. United Kingdom has the most listings with 1.
Country view
1 listings · 1 country| Country | Median ask | Listings · 12 mo | Active · 90 d | Share |
|---|---|---|---|---|
| United Kingdom | $17,598 | 1 | 0 | 100.0% |
Comparable models
Similar length, displacement, and era. Open a row to compare that model's market page.
Similar boats to compare
4 similar designs| Model | LOA | Median ask | Listings · 12 mo | Active · 90 d |
|---|---|---|---|---|
| Judel/Vrolijk J/30 | 29.83' | $ 14,500 | 26 | 9 |
| Halmatic 30 | 29.5' | $ 19,766 | 21 | 10 |
| Cape Dory 30 C | 30.21' | $ 17,000 | 19 | 3 |
| Jupiter 30You are here | — | $ 17,604 | 1 | 0 |