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Hull Gauge
Sheet 3399 · recomputed 5 Nov 2026, 03:30 UTC

9.7 m sailing yacht by Beneteau · built 2008–2019 (boats seen)

Beneteau
Oceanis 31 used price guide

Gauge Value
Indicative · 8–24 boats
£57,500€65,000$77,500

Middle half £52,000€61,500$71,000 – £78,500€92,500$105,500

median asking price of 21 boats listed since Oct 2020, in today's prices · asking, not sold

Watch

9.66 mbeam 3.39 mdraft 1.55 mfull specification

A used Beneteau Oceanis 31 asks a median of £57,500€65,000$77,500 across 21 boats listed since Oct 2020, in today's prices. Half sit between £52,000€61,500$71,000 and £78,500€92,500$105,500, and each year of age takes about 4.2% off.

01

The field

Each number is one boat: its asking price in thousands of pounds, at today's market level, set above the year it was built. The orange line is the model's middle price for its age; the shaded band holds the middle half. Tap a number to see the boat behind it.

20 boats by year built · asking prices in £ thousands, in today's prices · listed since Oct 2020 · asking, not sold · middle line fitted on 20 boats
20 boats · fill in Your boat below to place yours on the field. 1 boat without a build year is not drawn.
02

Your boat

Estimated from the boats above. No email, no broker call.

Listed in
optional, in pounds
Gauge Estimate · Indicative
£53,500€62,500$72,000

Likely range £51,000€60,000$67,500 – £55,500€64,500$75,000

11 comparable boats built 2008–2014 · hours not given · all markets · asking, not sold

Add your asking price to see where it sits among boats like yours.

03

By year built

Median from five boats; middle half from ten. Below that we print nothing rather than a guess. Linked years have their own page with that year's boats. The spread is drawn on the field's scale, in pounds.

YearBoatsMedianMiddle halfSpread
20191—too few boats
20183—too few boats
20172—too few boats
20162—too few boats
20151—too few boats
20140—none listed
20131—too few boats
20120—none listed
20112—too few boats
20101—too few boats
20093—too few boats
20084—too few boats

Across boats built 2008 to 2019, each year of age takes about 4.2% off the asking price.

04

What moves the price

Each factor compares boats of the same age, so a newer boat's premium isn't counted twice. Five boats or more on each side, or we say so.

Age

Each year of age takes about 4.2% off the asking price.

−4.2%per year of age · fitted on 20 boats
Where it's listed

Boats listed in the UK market ask about 4.5% less than the same age elsewhere.

−4.5%Listed in the UK 5 boats · against elsewhere 15

Asking prices, not sold. Factors can overlap, so treat these as a guide to what the market asks, not a formula.

05

Time to sell

203days

listed so far: the median of 15 boats seen on two or more dates

29%

have cut their asking price: 4 of 14 boats seen at least 14 days apart

—

median size of a cut · withheld: fewer than five cuts to measure

These are asking prices, and asking is not selling. Days listed so far is not time to sell: a boat still listed has not sold, and we do not yet record when a listing ends. We have not measured how far sale prices land below asking; the methodology says what we can and cannot measure.

06

Cost to keep

A year on a South Coast marina berth, insured at the Gauge Value, in pounds. An estimate from published rates, not a quote.

Depreciation£2,4004.2% a year of age on the fitted curve, at the Gauge Value
Berthing£5,000annual band for the region, Lake Yard marina berth, 8-10 m; Marina berth, South Coast · Lake Yard price list 2026 · BerthFinder
Maintenance and repairs£4,3005% to 10% of a value of £57,500 a year (maintenance, older boats) · Boatsetter
Lift-out and antifoul£4509.7 m at the cited rate per metre (Lake Yard: lift, hold, pressure wash, relaunch, plus antifoul labour) · Lake Yard price list 2026
Insurance£6000.5% to 1.5% of a value of £57,500 a year · Velos Insurance; Admiral Yacht Insurance
Engine servicing—not estimated: labour rates are cited, but no source publishes the hours a service takes
A year of ownership£12,750 £1,060 a month

Fuel is not included: no cited source gives the engine hours a typical owner runs in a year.

08

Questions about the Oceanis 31

How much is a used Beneteau Oceanis 31 worth?

The median asking price is £57,500, from 21 boats listed since Oct 2020, in today's prices; half sit between £52,000 and £78,500. Each year of age takes about 4.2% off. For a specific boat, use Your boat above.

How long does a Beneteau Oceanis 31 stay on the market?

We do not measure time to sell yet. Across 15 boats seen on two or more dates, the median time between first and last sighting is 203 days so far. 29% of 14 boats seen at least 14 days apart have cut their asking price.

How fast does a Beneteau Oceanis 31 lose value?

About 4.2% of its asking price for each year of age, fitted on 20 boats built 2008 to 2019. On a boat at the median that is about £2,400 a year.

Are these sold prices?

No. They are asking prices observed on public listings, restated at today's market level. We have not yet measured how far sale prices land below asking, so we do not publish a figure for it.

09

About the Oceanis 31

The boats behind this page were built between 2008 and 2019 and have been listed since Oct 2020, most often in the European market. 29% of the boats seen at least 14 days apart have cut their asking price.

How we measure: we read public listings from brokers and marketplaces, count a boat once when it appears on several sites, store its asking price each time it changes, and restate older asking prices at today's market level. We never republish a listing, a photograph or a seller. Every figure is recomputed nightly and dated; below five boats we publish nothing. The 21 boats here were listed in the UK and Europe. Full methodology

Length overall
9.66 mfrom listings · 15 boats
Beam
3.39 mfrom listings · 9 boats
Draft
1.55 mfrom listings · 6 boats
Built
2008–2019from listings · 20 boats
Type
Sailing yachtour classification