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Hull Gauge
Recomputed 5 Nov 2026, 03:30 UTC

Lagoon 42vsNautitech 40 Open

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

At the same age, the Nautitech 40 Open asks 4.2% less than the Lagoon 42; on the headline Gauge Values it asks 8.0% less, which mixes ages: its boats are older (median build year 2018 against 2019). The Lagoon 42 holds its value better (4.7% a year of age, against 6.5%).

same age · 10 shared build years · 31 and 20 boats in them · Indicative · in today’s prices · asking, not sold

02

Year by year

Each build year's Gauge Estimate, for the 10 years both have boats in. Pooled across those years (31 and 20 boats), the Nautitech 40 Open asks 4.2% less than the Lagoon 42.

Lagoon 42Year builtNautitech 40 Open
£463,500 (13)
2025—
—
£452,500 (16)
2024−11%
£402,500 (9)
£423,000 (18)
2023−11%
£377,500 (11)
£412,500 (21)
2022−10%
£370,500 (13)
£367,000 (23)
2021level
£366,000 (15)
£319,500 (23)
2020+3.3%
£330,000 (15)
£301,000 (22)
2019level
£301,000 (15)
£295,000 (20)
2018+1.0%
£298,000 (16)
£285,500 (17)
2017+2.5%
£292,500 (15)
£280,500 (15)
2016−16%
£235,000 (13)
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

£100k£410k£710k
Lagoon 42
2019
newest build year whose Gauge Estimate is at or under £310,000 (£301,000, 22 comparable boats)
6
of the 12 boats listed now ask £310,000 or less
Nautitech 40 Open
2019
newest build year whose Gauge Estimate is at or under £310,000 (£301,000, 15 comparable boats)
3
of the 3 boats listed now ask £310,000 or less

At £310,000 you can reach a 2019 of either. 6 Lagoon 42 boats and 3 Nautitech 40 Open boats are listed now within it, so the Lagoon 42 gives you more to choose from.

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 42MeasureNautitech 40 Open
£15,200
Depreciation (not in total)
£19,450
£6,900
Berth
£5,750
£11,350
Maintenance
£10,450
£600
Lift-out and antifoul
£550
£3,250
Insurance
£3,000
£1,250
Fuel
£450
£23,350
Total a year, before depreciation
£20,200 (better)

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.

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 42MeasureNautitech 40 Open
Sail catamaran
Type
Sail catamaran
—
Length overall
11.98 m
“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 42 or the Nautitech 40 Open?

At the same age the Nautitech 40 Open is cheaper: the Nautitech 40 Open asks 4.2% less than the Lagoon 42 across 10 shared build years. Their Gauge Values, the median asking prices of all the boats we observed whatever their age, are £324,000 and £298,000.

Which holds its value better?

The Lagoon 42: it loses about 4.7% of its asking price a year of age, against 6.5% for the Nautitech 40 Open. Both rates come from each model's published depreciation curve.

Which spends less time on the market?

Boats of the Lagoon 42 had been listed a median of 650 days when we last saw them, against 186 days for the Nautitech 40 Open. That is time listed so far, not time to sell, which we don't measure yet. 58% of the Lagoon 42 boats we saw 14 or more days apart cut their asking price, against 67% of the Nautitech 40 Open boats.

How do you compare them like for like?

We compare boats of the same build year. For each of the 10 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 20 boats in those years. The Gauge Values compare the whole fleets instead, so they mix boats of different ages.

Other comparisons

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