Momentum | 2012 Lagoon 450

Annapolis, MD, US

Momentum | Lagoon 450 45.83ft

US $549,900

Annapolis, MD, US


This never chartered Lagoon 450F is the best equipped boat on the market. She’s just returned from a Caribbean cruise and is ready to go on her next adventure. She’s had her bulkhead reinforcement professionally done in 2022 in accordance with the Lagoon certified specs. She has upgraded Yanmar 54 hp engines, all electric winches, Raymarine Axiom display at helm, radar, 1650-watt solar array with Victron controllers, 900ah lithium battery bank, water maker, wash/dryer, Onan 11.5 kw generator, new Doyle Mainsail, Genoa, and sail bag, Spinnaker, new fridge, freezer and propane oven.  Many upgrades and custom options so she is ready to sail away now!

She’s had over $150K USD in upgrades over the last year including a brand new highfield dinghy. She comes with absolutely everything you need to take her anywhere in the world down to an extensive list of tools, spares and toys. 

Recent rig inspection report available.
Her survey from 2022 is available and has her in “Above average condition for her age showing limited use for her age”.

The Lagoon 450 F is one of the most popular catamarans out there due to its spacious 4 cabin accommodations, light and airy feel, great entertainment setup, solid build, and overall functionality.  Never chartered and currently being sailed by a family of 5, this vessel is all prepped for offshore passage making and everything you would need to make this a comfy and fun liveaboard home.

See below for a detailed list of  the extensive upgrades /refit done in the past 2 years.

A note from the owner:

"When our 5 year plan turned into an 8 month plan, we realized we really needed to find a vessel sooner than we had expected. After several trips to Ft. Lauderdale, only to be left utterly disappointed by their idea of ‘bluewater cruising ready’, we were somewhat defeated and thought we wouldn’t be able to find our ideal boat in time. Then Momentum hit the market and not just anywhere, right in our backyard here in Annapolis.

She was exactly what we were looking for and had never been in charter. We eagerly purchased her and began moving aboard in June of 2022. We spent several months getting her outfitted to our needs. As we were planning on being on her for at least 5 years, we decided to spend the money up front getting her exactly to our ideal. Once we completed all work, we headed south for the winter.

We started with a trip down the east coast to the Bahamas, then on to the Virgin Islands and finally island hopping all the way down to Grenada. We’ve swum with dolphins, sharks, turtles and stingrays to name a few. The kids have become true outdoor enthusiasts. They’ve become avid snorkelers, boogie boarders, paddle boarders and dinghy drivers! My son became my 1st mate many times when my husband was gone for work, helping us anchor, move the boat or even getting on and off mooring balls. A member of our family was diagnosed with cancer which requires our full attention for the foreseeable future. But our memories of this last year and a half will see us through and we plan to be back as soon as our family commitments allow."



  • Length: 46ft
  • Builder: Lagoon
  • Beam: 25' 9"
  • Draft: 4' 3"
  • Year: 2012
  • Hull: Fiberglass
  • Speed: 9.5
  • Status: Active

View More Specs


  • Builder: Lagoon
  • Keel: Twin Keel


  • Length Overall: 45.83 ft
  • Max Draft: 4' 3"
  • Beam Measure: 25' 9"


  • Total Power: 80
  • Engine Brand: Yanmar
  • Year Built: 2012
  • Engine Model: 54 HP
  • Engine Type: Inboard
  • Engine/Fuel Type: Diesel
  • Engine Hours: 3700
  • Engine Power: 40 hp

  • Total Power: 80
  • Engine Brand: Yanmar
  • Year Built: 2012
  • Engine Model: 54 HP
  • Engine Type: Inboard
  • Engine/Fuel Type: Diesel
  • Engine Hours: 3700
  • Engine Power: 40 hp


  • Fresh Water Tanks: 1 (264 Gallons)
  • Fuel Tanks: 1 (264 Gallons)


  • Number of cabins: 4
  • Number of heads: 4

List of Recent Upgrades

2023 NEW – July

Port engine heat exchanger
Both engine conical clutch upgrade
All sail drive seals and engine shaft seals
Bottom painted
Entire boat waxed
All cleats reinforced
Fiberglass repairs to minor chips and dings
Rigging and sails inspected for wear and tear (no issues)
Underwater lights
Starlink conveys with purchase

2022 NEW

To standard rewiring of vessel for 120v and 220v 50/60 hz
Added additional inverter/charger
2 x 250ah Balmar alternators
Wakespeed alternator control relays
990ah victron lithium battery bank
Victrom battery management system
Rainman watermaker, 220v, for use with & without generator on
Uline 220v icemaker
LG washer/dryer
Viking 8 man liferaft
Whynter 80l freezer
Brand New Doyle mainsail/sailbag and genoa
Furrion range/oven
Panasonic microwave
Isotherm freezer / refrigerator
44 inch flat screen TV
Magma grill
Deck sides netting
2022 Highfield 360 tubular console dinghy with 20 HP motor
Sailrite sewing machine
Iridium go with external antenna
Digital Yacht sim hotspot with antenna installed
Starboard engine heat exchanger and new rear main seal
Starboard engine mounts
Lagoon certified bulkhead repairs
Bottom painted
2 x fixed props
990ah Battery Bank



Sun pad 
Davits for dinghy lift and manual winch (can be changed to electric if installed)
Outboard mount and lift
88lb Rocna with 350 feet of chain with spare anchor
Windlass with remote control from helm
Helm enclosure
Cockpit partial enclosure
Dinghy cover
Flybridge hardtop

8 mooring cleats
1 winch size 60 on starboard side of helm for mainsail halyard and reefing lines and genoa
1 winch, size 50,on port side for genoa halyard, spi (option), toping lift
1 winch, size 60, for genoa on port side
1 winch, size 50,for main sheet, traveller and furler
Vertical axe windlass 12V 1700W in anchor locker, with 12 mm gypsy
New trampoline 2022, Mantis bridle
Extern stern pulpits
Inboard stern pulpits including on portside flagpole fittings and buoy support
Composite forward longitudinal beam with recessed chain run and mooring cleat
Aluminium crossbeam with furler genoa chain plate, anchor roller and navigation lights
Mainsheet traveller track and ball-bearing car
2 genoa tracks with genoa car and stopper


Large cockpit usable as deck salon, protected by fixed composite bimini with recessed cockpit lighting
U-shape foredeck seating area with technical generator locker on the front
Removable adjustable wood varnished cockpit table accommodates 8 / 10 people
Sliding window between cockpit and galley for easy pass-through
Direct access from cockpit to helm station on starboard side
Storage locker with top access (70 liters / 18 gallon US ) with drainage
Aeration hatch – Opening roof on the fly for cockpit aeration


5 x AC (6000 btu cabins, 13000 btu salon)
TV with Starlink internet
USBs throughout vessel to include at the helm
Fusion satellite radio with surround speaks in salon, cockpit and helm
Seating in salon with large rectangle table, seating in rear cockpit with table, seating in fwd deck, seating in flybridge and sun pad seating in front of flybridge.

Large main salon with panoramic view – standing headroom approx: 2,05 m / 6’9”
Steel pillar with fabric cover
Large L shaped seating area
Storage compartments under bench seats
Locking aluminium sliding cockpit door with open/closed positions
2 opening hatches on forward windows

Aft Cabins
Queen-size berth (2,04m / 6’7”x 1,60m / 5’2” at widest point)
Semi-island berth
1 drawer under berths.
1 hanging lockers
1 low shelf
Storage in the floor
Ceiling led spotlight
2 reading lights per berth
2 bed tables with storage
1 opening deck hatch
1 opening port hole
1 large hull window in plexiglass
1 opening escape hatch
Curtains on portholes, hatches and fixed one-way windows

Forward cabins
double berths
2 drawers under berths
2 space storages
1 bookshelf
1 bed table with storage and shoes storage
Hanging lockers and shelves
LED ceiling lights
2 reading lights per berth
1 opening deck hatch
1 opening port hole
1 large hull window
Curtains on portholes, hatches and fixed one-way windows
3 lockers storage under the berth


4 x heads with separate shower stalls, GRP units with white laminate walls – standing headroom 2,04m / 6’9”
Washbasin with mixer tap / shower
Full-size marine toilet
1 holding tank with gravity drain/deck pump out in the aft port head
Storage locker and 2 mirror doors
Ceiling lights and spotlights over the mirror
Forward heads access from cabin
Synthetic resin countertop
Separated shower
1 opening deck hatch
Technical access under washbasin


2 x forward storage cabins for sails, lines, fenders and personal gear
2 x deep storage lockers for additional gear and tools
2 x engine compartments for spares and tools
1 x rear cockpit storage for gear
Each cabin has appropriate clothing storage along with under bed and under floor storage compartments.
Each bathroom has ample vanity storage along with under sink storage
Salon has storage under seating and 2 storage compartments under floor.
Salon stools offer storage
Plenty of additional spaces for hiding/stores lesser used items.



Furrion oven/range
Panasonic Microwave
Indoor freezer and separate refrigerator
Outdoor Whynter 80L 12 volt freezer
Outdoor Uline ice maker
3 sinks with fresh water and sea water washing available
1 spout for filtered water
4 drawers for storage, 6 overhead storage and one under over/range along with open storage behind countertop
Under sink storage for cleaning supplies etc.
120v and 220v outlets


  • 2 x 54 HP 2012 Yanmar 4JH5E diesel engines

SD 50 saildrives

Engine hours 3700

2 x 132g metal fuel tanks (264g total)

Overall fuel consumption .81 gph (between 1800 & 2200 rpm standard)

Max speed approx 8.2 kts on engines / 8.9 kts sails with 15kts + wind (speed varies obviously depending on conditions, we’ve certainly seen 9.5 kts under sail with the right winds and seas)

Genset Onan 2012 11.5kw

Engine hatch gas struts

Engine controls at helm station

Soundproofed engine compartments, soundproof access panels
Electrical extractor for ventilation
Sea water filters


  • Raymarine Axiom display

  • AIS


  • Depth finder

  • Transducer

  • Victron Energy System including

  • 3×330 amp hour Victron Lithium Ion Batteries

  • Multiplus I Inverter Charger

  • Multiplus II Inverter Charger

  • Smart BMS Battery Management System

  • 2x Victron Smart charger for Balmar 250 Amp Alternators

  • 1650 amp/h solar linked to Victron 85 & 45 amp chargers

  • Skylla IP4 Charger

  • Xtreme 4g sim chip cell extender for home hotspot with wired antennas

  • Fusion satellite with bose surround, bluetooth and sirius xm in salon, cockpit and helm

  • Iridium go with external antenna

  • The vessel is both 120 and 220 wired
  • 990 AH Battery Bank
  • Starlink conveys with purchase



Twin deck access stairways from deck
Large bench seat for 6 people
Ergonomically-designed helm station with leathered wheel with brake, engine throttles,engine panels, hourmeters, compass, large instrument console for electronic displays, cup holders, rope storage
Protection cover for helm position
Space storage around lateral staircases of the flybridge
Sun pad place in front of the helm station


New 2022 Doyle Mainsail and sailbag with new Genoa
Used spinnaker
Sail and rigging inspected by certified rigging specialist in Grenada 


All running rigging inspected by certified rigging specialist in Grenada. No current issues.

Safety Equipment

2 x EPIRB registered
1x personal AIS in watch vest
Vessel has RADAR and AIS
1x 2022 Viking 8 person life raft
3 fire blankets
5 fire extinguishers
2 x 1000 gph bilge pumps
2 x manual bilge pumps
2 x gulper manual activation bilge pumps
8 x life vests
Flares, lights, etc in emergency kit
Medical bag
Life netting
Jack (life) lines
Iridium Go

Spares and Tools

1 yr + of spare engine oil and fuel filters
2 x spare engine belts
1 x spare ac pump
Spare gulper pump
Spare water pump
Spare victron distributor
Spare windlass remote
Spare anchor
Spare various lightbulbs
Spare led lights
½ inch socket set with wrenches
Metric Tap and dye set
Spare impellers
2 x boat hooks
Additional various spares and deck cleaning
Ryobi pressure washer
Shop vacuum
50 amp and 30 amp shore power with adapter
3 propane tanks
Various fuses
Various plumbing parts
Spare watermaker filters

Included Inventory

2-4 person kayak (2 adults or 2 adults and 2 children)
1 child kayak
Cleaning supplies and oils if desired
Iridium go
Trolling fishing rods
4 dive tanks
Sailrite sewing machine

The Company offers the details of this vessel in good faith but cannot guarantee or warrant the accuracy of this information nor warrant the condition of the vessel. A buyer should instruct his agents, or his surveyors, to investigate such details as the buyer desires validated. This vessel is offered subject to prior sale, price change, or withdrawal without notice.


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Your team delivered on every mark. You’ve got an amazing broker in Mark Wattrus and I’m confident you will have continued success moving forward together. He was available 24/7 whenever I had questions. We had a great initial visit on the boat and his marketing plan and photos were superb

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I bought a yacht that I had never seen. I did this because I trusted my broker Andrew Holland. It was not an easy job for Andrew, as I am an experienced boat builder and owner of previous yachts, but work in West Africa. Imagine how hard it was to communicate what I was looking for. Andrew came up with exactly what I wanted. He dealt with time delays, all my questions at odd hours, and was there for the survey. He reported honestly and professionally. After buying the yacht, I arrived at the boat on a Sunday night, after dark, after travelling from West Africa to the Caribbean, and found it was better than expected. He never pulled punches and made me aware of shortfalls. I expected to spend my one month leave working on the boat, but actually spent less than one week, and was able to spend 3 weeks sailing – wonderful bonus.

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I have been sailing since I was a child and attended Massachusetts Maritime Academy. But when my wife and I began the process of purchasing an ocean cruising/racing catamaran, I realized that this is a world unto itself. Obviously, we needed to find someone knowledgeable to help us make an informed decision. More importantly, we needed someone honest and willing to put our interests before his or her own. I was lucky to work with Phil Berman at The Multihull Company. He repeatedly shunned the fast buck, choosing instead to work the long road to connect us with the “perfect boat”. I would be glad to recommend Phil and his company to anyone planning to purchase or sell a performance sailing machine.

— Eric Boutiette

Andrew Hodgdon was our broker when we bought our 2018 Lagoon 450F in Antigua in April 2922. He provided great service and was very attentive to our needs. We would highly recommend Andrew and the Multihull Company.

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