S/V Umami is a Nanny Cay based 2025 Hallberg-Rassy 340 For Sale By Broker. Responses to inquiries may come from a broker who is representing the owner as a fiduciary. This owner requires financial settlement only. No trades.
Umami is an exceptionally well-equipped 2025 Hallberg-Rassy 340, offered for sale by her original owner. She was ordered new from Hallberg-Rassy and built to his demanding specifications with virtually every available factory option. Not content with an already extensive factory specification, her owner went further after delivery, adding additional lithium battery capacity, a high-output alternator, a watermaker, and other upgrades to create a remarkably capable and self-sufficient 34-foot cruising yacht.
Her electrical and energy systems are a particular highlight. Umami carries a substantial 920 Ah Mastervolt lithium service bank supported by approximately 200 watts of solar generation and an ARCO Zeus 220-amp high-output alternator. A Mastervolt 3,000-watt inverter/charger supplies AC power aboard, and the system has sufficient capacity to operate the Dometic air conditioning overnight from the batteries without running a generator. Combined with her Spectra Ventura watermaker, this gives Umami an unusual degree of independence from shore power and marina facilities for a yacht of her size.
The cruising specification continues with Dometic air conditioning serving the saloon and forward cabin, Webasto diesel heating, a retractable 6 hp bow thruster, water-cooled refrigeration, and a well-equipped galley. Below deck she has Hallberg-Rassy’s two-cabin, one-head arrangement finished in European oak, with double berths forward and aft, a separate shower area, and additional sleeping accommodations available in the saloon.
Sail handling was specified for easy operation from the cockpit, with Seldén in-mast furling, electric Seldén Furlex headsail furling, upgraded Lewmar winches, and a Code Zero with complete handling equipment. Most of the running rigging was renewed in 2026, and Hallberg-Rassy completed a factory rig inspection the same year.
Her navigation package is equally comprehensive, centered around twin Raymarine Axiom Pro 9 multifunction displays with Quantum 2 Doppler radar, Raymarine autopilot, multiple i70s instruments, AIS700 Class B AIS, and Ray73 VHF. Twin steering wheels, twin rudders, Hallberg-Rassy’s permanent windscreen, a sprayhood, a teak cockpit, and a fold-out bathing platform complete the deck and cockpit arrangement.
Umami is powered by a Volvo Penta D1-30 29 hp diesel with saildrive and a folding bronze propeller. The engine has been Volvo dealer serviced with a full service history and received a new raw-water pump in 2026.
Importantly, Umami has continued to receive Hallberg-Rassy factory after-sales attention since delivery rather than simply leaving the factory and disappearing into private ownership. Her specification reflects an owner who knew what he wanted when the boat was built and continued improving her afterward.
Umami is now offered for sale because her owner has decided to move up to a larger yacht. For a buyer considering a Hallberg-Rassy 340, she presents an opportunity to acquire a late-model, one-owner boat with an unusually comprehensive factory specification and significant additional equipment already installed.
Features
- 920Ah Lithium Battery Bank
- 800W Solar
- Spectra Watermaker
- Dometic Air Conditioning
- Retractable Bow Thruster
Specifications
| Name | S/V Umami |
| Make | Hallberg-Rassy |
| Model | 340 |
| Year | 2025 |
| Type | Monohull Sailboat |
| Builder | Hallberg-rassy |
| Construction | Fiberglass |
| Cabins | 2 |
| Heads | 1 |
| Galley | Aft in saloon to starboard |
Dimensions
| Loa | 35ft 9in / 10.90m |
| Lwl | 33ft 1in / 10.08m |
| Beam | 11ft 3in / 3.43m |
| Draft | 6ft 2in / 1.88m |
| Mast Height | 11ft 3in |
Tankage
| Fuel Tanks | 50 gallons |
| Water Tanks | 73 gallons |
| Holding Tanks | 23 |
Performance
| Engines | 30HP Volvo D1-30 2025 |
| Engine Hours | 1700 |
| Displacement | 13184 lbs |
| Sails | Dacron furling mainsail; Dacron furling genoa/jib with heavy-duty grey UV; E-Flex for genoa/jib; Code Zero; spinnaker equipment (no pole) |
Layout Diagram

Inventory
Accommodation
- The Hallberg-Rassy 340 has a two-cabin, one-head layout.
- The forward cabin has a double berth, and the aft cabin has a double berth.
- The main saloon has settees to port and starboard with a central dining table.
- The galley is located aft in the saloon to starboard.
- The navigations station is also aft in the salon to port.
- There is an enclosed head and separate shower area at the forward end of the salon to port.
Interior comforts and amenities
- European oak interior joinery
- High-gloss varnished companionway washboards
- Teak-and-holly style interior flooring
- Medium grey carpeting
- Grey Tathra 31 upholstery
- Saloon with port and starboard settees
- Saloon table
- Lockers, bookshelves and storage beneath saloon seating
- Port saloon settee lee cloth
- Starboard saloon settee lee cloth
- Custom fitted sheets for both saloon settees
- Top mattress for port saloon settee
- Ocean Air Skyscreen in saloon
- Blackout package including Skyscreen forward of mast
- Wempe Bremen II chrome clock
- Wempe Bremen II chrome barometer
- Extra opening Lewmar portlight to cockpit
- Shade for extra opening Lewmar cockpit portlight
Navigation area
- Navigation/chart table with storage
- Wooden trim strips around exterior of chart table
Galley
- Galley with composite stone work surface
- Double stainless-steel galley sinks
- Removable covers for galley sinks
- Cooker with oven
- Removable cover over stove
- Galley drawers, waste bin and storage
- Air fryer – runs on inverter
- Dometic portable freezer – 120V, runs on inverter
Forward cabin
- Forward cabin with large double berth
- Sprung mattress in forward cabin
- Additional top mattress in forward cabin
- Custom fitted sheet for forward berth
- Lockers above forward berth
- (2) large hanging lockers in forward cabin
- Storage beneath forward berth
- Additional doors, floors and dividers beneath forward berth
Aft cabin
- Aft cabin with double berth
- Sprung mattress in aft cabin
- Custom fitted sheet for aft berth
- Hanging locker in aft cabin
- Lockers above and storage beneath aft berth
Head and shower
- Heads compartment with separate watertight shower area
- Teak shower grating
- Composite stone wash basin and countertop
- Single-lever shower mixer
- Storage above and below wash basin
- Large head mirror
- Removable pole in head for hanging foul-weather clothing
- Opening head portlight and deck hatch
Watermaker
- Spectra Ventura watermaker – 6 GPH, new 2025
Electronics and navigation
- (2) Raymarine Axiom Pro 9 multifunction displays
- Factory frame and mounting box for each Axiom Pro display at the steering pedestals
- Raymarine Quantum 2 Q24D 18" Doppler radar
- Stainless-steel mast-mounted radar console
- GPS antenna
- Raymarine autopilot for wheel steering
- Raymarine p70 autopilot control
- Additional Raymarine p70s autopilot display above sliding companionway hatch
- Raymarine i70s wind instrument
- (2) additional Raymarine i70s displays for separate speed and depth information
- Wind instrumentation
- Speed instrumentation
- Depth instrumentation
- Magnetic steering compass
- Raymarine AIS700 Class B AIS transponder
- Raymarine Ray73 VHF
- DSC Class D functionality
- Integrated AIS and GPS functionality in Ray73
- VHF antenna with cable to navigation table
- Engine tachometer
- Engine-hour meter
- Fuel tank level instrumentation
- Freshwater tank level instrumentation
- Fusion RA770 stereo
- Fusion stereo integrated with Raymarine multifunction displays
- Cockpit stereo speakers
- UFO marine TV/FM antenna
- ACR EPIRB
- Corum clock
- Corum barometer
Electrical systems
- US-spec 120V / 60Hz AC electrical system
- 120V shore power connection
- Factory shore-power system included with Large Lithium Package
- 120V AC distribution
- 110/120V AC outlets
- Additional 110V outlet in galley
- Additional 110V outlet in cockpit
- Dedicated 110V outlet at TV elevator
- AC water-heater element
- 110V Dometic air-conditioning power supply
- Mastervolt Combimaster 12/3000 inverter/charger
- 3,000-watt inverter capacity
- 160-amp battery charger
- 920 Ah lithium service battery bank
- (4) Mastervolt MLI Ultra 12/3000 lithium batteries
- (2) additional Mastervolt lithium batteries added to the original OEM battery specification
- Dedicated engine-start battery
- Emergency engine-start switch
- 12V DC electrical system
- Main DC electrical distribution panel
- Automatic circuit breakers
- DC voltmeter
- 12V outlets
- (3) dual USB 12/24V charging outlets:
- Navigation area
- Forward cabin
- Aft cabin
- ARCO Zeus 220-amp high-output alternator
- Serpentine-belt alternator drive
- Engine-driven alternator charging
- (2) Flin rail-mounted solar panels – 200 watts total (new 2026)
- Additional cockpit outlet for solar panel
- Solar charge regulator
- Solar charging system included with factory Large Lithium Package
- Interior LED lighting
- Additional factory lighting package for main cabin, forward of mast and aft cabin
- LED light in storage locker
- Cockpit floor lighting
- International LED navigation lights
- Aqua Signal LED masthead tricolor navigation light
- Electric LPG shutoff switch
- LPG alarm
Deck and hull equipment
- White gelcoat hull
- Hallberg-Rassy blue decorative hull band
- Hand-laid hull construction
- Isophthalic gelcoat
- Vinylester-based barrier coat
- Polyester laminate
- Hull insulation against heat and cold
- Integrated rubbing strake
- Deep bilge
- Reinforced structural floors
- Bolt-on lead keel
- Normal-draft keel
- Stainless-steel keel bolts
- Sandwich-construction deck, coachroof and cockpit
- Deck structure laminated to hull
- PU synthetic teak side decks
- Teak toerails
- Teak handrails
- Teak cockpit seats
- Teak cockpit floor
- Stainless-steel protective strips at rubbing strake, mooring cleats and spring cleats
- (4) flush-mounted opening deck hatches
- Opening portlights
- Deck light
- Deck scuppers
- Flagstaff
- Twin leather-covered steering wheels
- Twin rudders
- Stainless-steel rudder stocks
- Self-aligning rudder bearings
- Permanent windscreen with handholds
- Opening center windscreen section
- Sprayhood
- Wood cockpit table with fittings for dedicated storage
- Cockpit cushions
- Wheel/instrument-box covers
- (4) folding lifebelt attachment fittings in cockpit
- Port and starboard entry gates
- Fold-out manual bathing platform
- Upgraded bathing ladder as fitted to HR44
- Bathing-platform shower
- Lewmar electric anchor windlass
- 16 kg Ultra anchor
- 40 m / approximately 131 ft anchor chain
- Custom anchor snubber with Dyneema soft shackle
- Additional 30 m three-strand nylon anchor rode
- Lewmar chain counter
- Fixed anchor-windlass remote control in cockpit
- Forward chain locker
- 15 L/min seawater deck-wash pump
- No secondary anchor
- Mushroom dinghy anchor
- Stainless-steel bow pulpit
- Stainless-steel stern pushpit
- Stainless-steel lifelines
- Stainless-steel bow and stern mooring cleats
- Spring cleats
- Integrated bowsprit
- Boathook with dedicated deck holder
- Outboard motor bracket on pushpit
- (2) ball fenders
- (8) regular fenders
- Docklines
- Custom boom tent (new 2026)
- (2) 3 kg Campingaz LPG bottles
- Plastimo 4-person liferaft in soft valise (new 2025)
Sails and rigging
- Seldén fractional rig
- Double-spreader mast
- Seldén in-mast furling mainsail system
- In-mast furling controlled from cockpit
- Electric Seldén Furlex TDE headsail furling system
- Seldén Rodkicker rigid boom vang
- Adjustable backstay system
- Integrated bowsprit for Code Zero/asymmetric sail use
- Windex masthead wind indicator
- Mast-mounted deck light
- Hallberg-Rassy factory rig inspection (2026)
- Dacron furling mainsail
- Dacron furling genoa/jib
- Heavy-duty grey UV protection on genoa
- E-Flex for genoa/jib
- Code Zero
- Complete Code Zero equipment
- Spinnaker equipment, excluding spinnaker pole
- Most running rigging (new 2026)
- Running rigging led aft to cockpit
- Rope clutches/jammers
- Genoa tracks and cars
- Mainsheet track and car
- Lewmar 45ST genoa sheet winches in lieu of standard
- Lewmar 30ST halyard winches in lieu of standard
Mechanical equipment
- Dometic 110V, 50/60Hz air-conditioning system serving saloon and forward cabin
- Webasto Air Top EVO 40 diesel cabin heating system
- Four 12V cabin fans plus one additional 12V fan
- Water-cooled refrigeration system
- Pressurized freshwater system
- Hot and cold pressurized water
- Insulated water heater
- Electric shower waste pump
- Freshwater shower at bathing platform
- 15 L/min 12V seawater deck-wash pump
- 12V electric marine toilet
- Saltwater toilet flush
- Gobius holding-tank monitor
- Electric bilge pump
- Manual/emergency bilge pumping system
- Retractable 6 hp bow thruster
- Electric LPG shutoff and gas alarm
- TV elevator mechanism
- Abundant spare parts
Safety equipment
- USCG safety package
- Fire Extinguishers (number and type)
- Emergency Tiller
- CE Category A – Ocean certification
- Stainless-steel bow pulpit and stern pushpit
- Stainless-steel lifelines
- Port and starboard boarding gates
- Four folding cockpit lifebelt attachment fittings
- Lifebuoy with holder
- EcoMax 230 radar reflector
- Raymarine AIS700 Class B AIS transponder
- Raymarine Ray73 DSC VHF
- Aqua Signal LED masthead tricolor navigation light
- International LED navigation lights
- Electric bilge pump
- Manual/emergency bilge pump
- Electric LPG shutoff
- LPG alarm
- Companionway washboards lockable from inside
- (2) fire extinguishers
- Emergency engine-start switch
Engine info
- Volvo Penta D1-30 marine diesel engine
- 3-cylinder diesel
- 21 kW / 29 hp
- Freshwater cooled
- Engine hours: 1,700 as of August 25, 2026
- Sound-insulated engine compartment
- Saildrive
- (2)-blade folding bronze propeller
- Volvo dealer serviced with full service history
- Raw-water pump (new 2026)
- Dedicated engine-start battery
- Engine-driven alternator
- Emergency engine-start switch
- Engine tachometer
- Engine-hour meter
Dinghy info
- EZ Raft 2026
- HIN: HK-EZR50850D626
- 2025 Tohatsu 9.8hp 2 stroke
- Serial: 053345BB
Tankage
- All tanks plastic
- Holding tank is 23 gals
- Fuel: 188 L / approximately 50 US gal
- Fresh water: 277 L / approximately 73 US gal
- Fuel tank located beneath starboard saloon settee
- Freshwater tank located beneath port saloon settee
- Holding tank
- Holding tank discharge by gravity or deck pump-out
- Gobius electronic holding-tank level monitoring
- (2) 3 kg Campingaz LPG cylinders
- Water: 73 gal
- Holding: 23 gal
- Fuel: 50 gal
Owners comments and boat history
- There is a kind of sailor who only ever really wants one boat, and I am one of them.
- Buying a Hallberg-Rassy new from the yard was an ambition I carried for years before I could act on it, and ordering Umami in June 2024 remains one of the achievements of my life.
- I specified her myself.
- I went down the options list line by line and took nearly all of it - the large lithium package, in-mast furling with electric Furlex, Code Zero and bowsprit, the retractable bow thruster, Dometic air conditioning, Webasto heat, twin Axiom Pro 9 displays with Quantum 2 radar.
- I was not building a boat to keep in a slip and admire.
- I was building the boat I was going to live on, and every choice I made was made with that in mind.
- I flew to Sweden with my father for the handover.
- Standing in the yard beside him the day they gave her to us is a day I will carry for the rest of my life.
- We sailed her down to Eemshaven with Halcyon Yachts aboard, she crossed with Sevenstar, and I collected her in Fort Lauderdale and turned south - through the Bahamas and on to the Virgin Islands.
- She has been home ever since.
- My girlfriend and I live aboard full time.
- Umami is our house and our adventure, my office, and the place I go when I need to be quiet.
- You come to know a boat completely when you live on her - every sound she makes, everything she asks for.
- Living aboard in the tropics asks more of a boat's systems than any options list can anticipate, so I kept going after delivery.
- I increased the lithium bank to 920Ah, fitted a 220-amp ARCO Zeus alternator, and added a Spectra Ventura watermaker - all of it done professionally by B&G in Tortola and later JSM Marine Services.
- In 2026 I added solar.
- She runs her air conditioning overnight on the batteries and makes her own water, which means we anchor where we like, for as long as we like, and answer to nobody's dock.
- I have looked after her the way you look after something you love.
- Roughly 1,700 engine hours as of August 2026, every one of them Volvo dealer serviced, with complete records from the day she left the factory.
- Most of the running rigging renewed in 2026.
- A Hallberg-Rassy factory rig inspection the same year, along with other warranty work carried out by the yard.
- A new raw-water pump, a custom boom tent, a liferaft new in 2025.
- She is fully loaded, thoughtfully upgraded, and there is nothing on my list left undone.
- We are selling for one reason: we are moving up to a larger yacht.
- That is the whole of it.
- Letting her go is not easy and I will not pretend otherwise - she has given us two years I would not trade for anything.
- What I want for her now is an owner who will do what we did with her: take her somewhere, live on her, use her properly.
- She is ready for it.
- She is lying at Nanny Cay, Tortola

























