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Hull Gauge
Recomputed 5 Nov 2026, 03:30 UTC

Gemini Legacy 35vsLagoon 380 S2

Gemini against Lagoon · used asking prices, listed in the UK, Europe and the US

At the same age, the Lagoon 380 S2 asks 38% more than the Gemini Legacy 35; on the headline Gauge Values it asks 29% more, which mixes ages: its boats are older (median build year 2012 against 2014). We can't yet say which holds its value better: the Gemini Legacy 35 has no published depreciation curve.

same age · 5 shared build years · 10 and 12 boats in them · Indicative · in today’s prices · asking, not sold

02

Year by year

Each build year's Gauge Estimate, for the 5 years both have boats in. Pooled across those years (10 and 12 boats), the Lagoon 380 S2 asks 38% more than the Gemini Legacy 35.

Gemini Legacy 35Year builtLagoon 380 S2
£141,500 (10)
2016+33%
£188,500 (14)
£137,500 (9)
2015+38%
£190,000 (15)
£135,500 (9)
2014+40%
£190,000 (15)
£130,000 (9)
2013+46%
£190,000 (15)
Gauge Estimate by year built · comparable boats in brackets, built within three years either side · — below eight comparable boats; a year where neither has eight is left out · the gap is the right-hand model against the left
03

What your budget buys

£65k£180k£290k
Gemini Legacy 35
2016
newest build year whose Gauge Estimate is at or under £160,000 (£141,500, 10 comparable boats)
0
the one boat listed now asks more than £160,000
Lagoon 380 S2
2008
newest build year whose Gauge Estimate is at or under £160,000 (£160,000, 15 comparable boats)
0
of the 3 boats listed now ask £160,000 or less

At £160,000 your money buys 8 years newer in the Gemini Legacy 35: a 2016 against a 2008.

04

A year of ownership

Each at its Gauge Value, on a South Coast marina berth, 44 engine hours a year (the median of 103 UK-listed sailing boats that report hours). An estimate in pounds from published rates, not a quote.

Gemini Legacy 35MeasureLagoon 380 S2
withheld
Depreciation (not in total)
£3,700
£5,750
Berth
£5,750
£10,400
Maintenance
£13,350
£500
Lift-out and antifoul
£550
£1,400
Insurance
£1,800
£350
Fuel
£650
£18,400 (better)
Total a year, before depreciation
£22,100

Each line is the middle of the cited range, to the nearest fifty pounds. Depreciation is a year of age on each model's published curve, at its Gauge Value, and stays out of the totals.

The Gemini Legacy 35 has no published depreciation curve, so its depreciation is withheld.

Sources: Lake Yard price list 2026 · BerthFinder · Boatsetter · Velos Insurance; Admiral Yacht Insurance · Boating Magazine, "Calculating Boat Fuel Consumption" · Littlehampton Marina fuel prices

05

Specification

Gemini Legacy 35MeasureLagoon 380 S2
10.67 mfrom listings
Length overall
11.55 mfrom listings
Sail catamaran
Type
Sail catamaran
“from listings” marks figures read from the listings themselves; unmarked figures are from our model register and not yet checked against a builder’s published source.
06

Questions

Which is cheaper, the Gemini Legacy 35 or the Lagoon 380 S2?

At the same age the Gemini Legacy 35 is cheaper: the Lagoon 380 S2 asks 38% more than the Gemini Legacy 35 across 5 shared build years. Their Gauge Values, the median asking prices of all the boats we observed whatever their age, are £138,500 and £178,000.

Which holds its value better?

We can't say yet. The Lagoon 380 S2 loses about 2.1% of its asking price a year of age, but the Gemini Legacy 35 has no published depreciation curve: we fit one from at least 20 boats across six build years and publish it only when the fit holds. We have 10 Gemini Legacy 35 boats across 5 build years.

Which spends less time on the market?

Boats of the Gemini Legacy 35 had been listed a median of 37 days when we last saw them, against 1,003 days for the Lagoon 380 S2. That is time listed so far, not time to sell, which we don't measure yet. 0% of the Gemini Legacy 35 boats we saw 14 or more days apart cut their asking price, against 35% of the Lagoon 380 S2 boats.

How do you compare them like for like?

We compare boats of the same build year. For each of the 5 years both models have boats in, we take the ratio of their median asking prices in today's prices, then pool the years, giving more weight to years with more boats on both sides. The figure is Indicative because the thinner side has 10 boats in those years. The Gauge Values compare the whole fleets instead, so they mix boats of different ages.

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