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Sailboat Specifications

Lagoon 42

Fractional Sloop · Catamaran Twin Keel

Designed by Van Peteghem/Lauriot-Prevost · Built by Jeanneau (Fra)/Tpi (Usa) · First built 1990

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LOA 42.50 ft  ·  Beam 22.67 ft  ·  Displacement 16,550.00 lb  ·  Sail Area 1,119.00 ft²  ·  Fractional Sloop  ·  Catamaran Twin Keel
About the Lagoon 42 Sailboat

Designed by the renowned French naval architecture firm Van Peteghem/Lauriot-Prevost, this catamaran represents an early entry in Lagoon's successful lineup of cruising multihulls. Built between 1990 and 1994 with only 51 units produced, the Lagoon 42 has become a sought-after vessel among cruising enthusiasts who appreciate its blend of performance and comfort. The twin-keel catamaran configuration provides exceptional stability and shallow draft capabilities, making it ideal for coastal cruising and gunkholing in areas where monohulls fear to tread. With its fractional sloop rig and generous sail area, the boat delivers respectable sailing performance while maintaining the spacious accommodations that catamarans are famous for. The wide 22.67-foot beam creates expansive living spaces both above and below deck, perfect for extended cruising or liveaboard situations. Construction quality reflects Jeanneau's reputation for building solid cruising boats, with fiberglass hull and deck providing durability for offshore passages. The relatively light displacement combined with the catamaran's inherent stability makes this vessel well-suited for couples or small families seeking comfortable coastal cruising with occasional offshore capabilities. Its limited production run has helped maintain strong resale values in today's market.

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Market Price Estimate Beta
Small sample size. This estimate is based on fewer than 5 listings and may not be representative of the true market. Use with caution.
$118,750 – $725,000
typical asking price
Median $725,000  ·  3 listings used
All listings
$118,750 – $725,000 3
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Dimensions & Specifications
LOA (Length Overall) 42.50 ft / 12.95 m
LWL (Waterline Length) 38.75 ft / 11.81 m
Beam 22.67 ft / 6.91 m
Max Draft 4.42 ft / 1.35 m
Displacement 16,550.00 lb / 7,507 kg
Sail Area (Reported) 1,119.00 ft² / 103.96 m²
Headroom 6.25 ft / 1.91 m
Design & Construction
Hull Type Catamaran Twin Keel
Rigging Type Fractional Sloop
Construction FG
Designer Van Peteghem/Lauriot-Prevost
Builder Jeanneau (FRA)/TPI (USA)
First Built 1990
Last Built 1994
Number Built 51
Owner Reviews

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Engine & Accommodations
Engine Make Yanmar or Perkins
Engine Type Diesel X2
Horsepower 54
Fuel Capacity 80 gals / 303 L
Water Capacity 160 gals / 606 L
KSP 0.81
Frequently Asked Questions

What is the Lagoon 42's comfort ratio?

The Lagoon 42 has a Ted Brewer Comfort Ratio of 9.96. A ratio over 30 indicates good offshore comfort; over 40 is very comfortable offshore.

Is the Lagoon 42 safe for offshore sailing?

The Lagoon 42 has a Capsize Screening Formula value of 3.56. Values under 2.0 are considered acceptable for offshore sailing; under 1.8 is ideal.

What is the hull speed of the Lagoon 42?

The theoretical hull speed of the Lagoon 42 is 8.34 kn knots, calculated from its waterline length.

How much does a Lagoon 42 weigh?

The Lagoon 42 has a displacement of 16,550.00 lb and a length overall (LOA) of 42.50 ft.

How much does a used Lagoon 42 cost?

Based on 3 recent market listings, used Lagoon 42 sailboats typically sell for between $118,750 and $725,000, with a median asking price of $725,000. Price varies significantly based on year, condition, location, and included equipment.

Who designed the Lagoon 42?

The Lagoon 42 was designed by Van Peteghem/Lauriot-Prevost, first built in 1990.