AIS, Anchor, Antifouling, Autopilot, Battery, Bilge pump, Bimini top, Bow anchor windlass, Chartplotter, Cockpit cover, Cockpit speakers, Cockpit table, Compass, Cooler, Deck shower, Depth sounder, Fire extinguisher, Fish finder, Freezer, Fridge, Full boat cover, GPS, Gangway, Gas stove, MOB system, Navigation lights, On-board computer, Pressurized water system, Radar, Radar reflector, SAT antenna, Shore power, Sink, Solar power system, Speedometer, Sprayhood, Stove, Swim ladder, Teak cockpit, VHF radio, Wind gauge, Windvane self-steering, iPod connection
Note
Well-maintained Boström 31 (1977), solid Swedish-built cruiser known for its seaworthiness and quality construction.
The boat is in very good condition, fully equipped and ready to sail.
Rare opportunity: transferable rental berth available in Mallorca (approved by marina).
Perfect for buyers looking for a turnkey solution in the Mediterranean — avoid waiting lists and start sailing immediately.
Located in Mallorca.
DESCRIPTION
The Boström B31 MKII is a cruising sailboat designed by renowned Swedish naval architect Leif Boström. It is highly regarded for its strength, performance, and durability. The boat has an excellent reputation as an offshore cruiser for sailors seeking safety and reliability on long and demanding passages.
With an overall length of 9.50 meters, it offers an ideal balance between cruising performance and onboard comfort, without compromising the stability and robustness typical of Scandinavian-built yachts.
The boat sails regularly in Mallorca and is fully prepared for both coastal and offshore sailing, with numerous upgrades and extras installed by the current owner.
She sails like a true offshore yacht: very stable, smooth through the water (no slamming), performs well from 5 knots, and reefing is not required until 20+ knots of wind.
The boat is fully set up for single-handed sailing.
Currently berthed at Real Club Náutico de Palma, with the possibility to continue the transferable rental berth.
Polish flag, VAT paid. No annual Spanish inspection (ITB) required, although the boat complies with Spanish safety equipment standards.
The yacht meets Lloyd’s specifications and is classified as Category A – Ocean-going vessel under European regulations.
Engine serviced annually, hauled out every year for antifouling.
Includes original plans and shipyard documentation.
ACCOMODATION
The yacht offers accommodation for up to 5 people.
The low-profile coachroof improves sailing performance while still providing standing headroom (approx. 180 cm near the companionway).
Forward V-berth cabin Manual Jabsco toilet with foldable sink and freshwater tap Saloon with convertible table (double berth to port + single berth to starboard) Ample storage lockers and shelving throughout Chart table and 12V electrical panel
Electric and manual bilge pumps.
GALLEY EQUIPMENT ENO 2-burner gas stove with cover New fridge/freezer (down to -15°C), works on 12V and 220V Sink and storage lockers
DECK & HULL EQUIPMENT Lewmar VX2 anchor windlass (2022) 50m chain + 30m rope 18kg stainless steel anchor (oversized for maximum safety) Second anchor for stern anchoring 120% genoa on furler (with UV protection) Mainsail in very good condition (2 reefing points) Spinnaker with pole Standing rigging regularly checked 4 Andersen self-tailing winches in cockpit + 2 on mast New lazy bag and lazy jacks New sprayhood and covers (excellent condition) Bimini and additional sun awnings (including large anchoring awning) Cockpit freshwater shower Swim ladder + additional safety ladder Folding wooden cockpit table Extensive lines, spare hardware, blocks, etc.
✅ Included in the price: 2.5m dinghy with Torqeedo electric outboard (battery charges on 12V or 220V)
ELECTRICAL SYSTEM 100W solar panels Victron SmartSolar charge controller Victron Smart Battery Monitor (app-controlled) 2 service batteries 1 engine start battery Shore power connection (220V) USB outlets throughout the boat Full LED lighting Fresh water tank: 150L Fuel tank: 80L
Fully upgraded electrical system (high-quality installation)
⛵ Performance & Build Quality
The Boström B31 is a yacht with outstanding seaworthiness. Its V-shaped bow and 1.65m draft allow it to cut through waves smoothly, providing comfort during long passages.
She is fast, stable, and capable of handling rough conditions, including Baltic-type seas. With favorable winds, cruising speeds of 7–8 knots are easily achievable.
The hull was designed for extreme strength — approximately 3 cm thick in reinforced areas — and built to withstand harsh conditions. The cast iron keel is integrated deeply into the hull structure for maximum strength.
SPECIFICATIONS Length overall: 9.35 – 9.50 m Beam: 2.90 m Draft: 1.65 m Displacement: approx. 3,500 kg Sail area: approx. 30–35 m²
The Boström B31 stands out for its robust fiberglass construction, offshore capability, and safe handling in demanding conditions. It is a true ocean-going yacht designed for sailors who value reliability and seaworthiness over modern trends.
