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Hull Gauge
Recomputed 5 Nov 2026, 03:30 UTC

Lagoon 380 S2vsLagoon 400

Two Lagoon models · used asking prices, listed in Europe and the US

At the same age, the Lagoon 400 asks 35% more than the Lagoon 380 S2. We can't yet say which holds its value better: the Lagoon 400 has no published depreciation curve.

same age · 11 shared build years · 22 and 19 boats in them · Indicative · in today’s prices · asking, not sold

02

Year by year

Each build year's Gauge Estimate, for the 11 years both have boats in. Pooled across those years (22 and 19 boats), the Lagoon 400 asks 35% more than the Lagoon 380 S2.

Lagoon 380 S2Year builtLagoon 400
£183,000 (8)
2018—
—
£192,000 (10)
2017—
—
£188,500 (14)
2016+20%
£226,000 (10)
£190,000 (15)
2015+30%
£246,500 (12)
£190,000 (15)
2014+34%
£255,000 (12)
£190,000 (15)
2013+31%
£249,500 (14)
£190,000 (16)
2012+41%
£268,000 (14)
£190,500 (16)
2011+41%
£268,000 (13)
£187,000 (17)
2010+43%
£266,500 (12)
£173,500 (15)
2009+56%
£270,500 (9)
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

£70k£240k£410k
Lagoon 380 S2
2018
newest build year whose Gauge Estimate is at or under £210,000 (£183,000, 8 comparable boats)
3
of the 3 boats listed now ask £210,000 or less
Lagoon 400
none
no build year’s Gauge Estimate is at or under £210,000
1
of the 4 boats listed now asks £210,000 or less

At £210,000, only the Lagoon 380 S2 has a build year within reach.

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.

Lagoon 380 S2MeasureLagoon 400
£3,700
Depreciation (not in total)
withheld
£5,750
Berth
£5,750
£13,350
Maintenance
£17,800
£550
Lift-out and antifoul
£550
£1,800
Insurance
£2,400
£650
Fuel
£900
£22,100 (better)
Total a year, before depreciation
£27,400

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 Lagoon 400 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

Lagoon 380 S2MeasureLagoon 400
11.55 mfrom listings
Length overall
11.97 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 Lagoon 380 S2 or the Lagoon 400?

At the same age the Lagoon 380 S2 is cheaper: the Lagoon 400 asks 35% more than the Lagoon 380 S2 across 11 shared build years. Their Gauge Values, the median asking prices of all the boats we observed whatever their age, are £178,000 and £237,500.

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 Lagoon 400 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 19 Lagoon 400 boats across 11 build years.

Which spends less time on the market?

Boats of the Lagoon 380 S2 had been listed a median of 1,003 days when we last saw them, against 984 days for the Lagoon 400. That is time listed so far, not time to sell, which we don't measure yet. 35% of the Lagoon 380 S2 boats we saw 14 or more days apart cut their asking price, against 25% of the Lagoon 400 boats.

How do you compare them like for like?

We compare boats of the same build year. For each of the 11 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 19 boats in those years.

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