Moody 31 Mk I Sailboats for Sale

Bill Dixon·1983 – 1985·Moody Yachts (A. H. Moody & Sons)
Moody 31 Mk I drawingBuilder drawing
Hull Type
Monohull · fin
Rig
Masthead Sloop
LOA
30.75' · 9.37 m
Disp.
9,966 lbs · 4,521 kg
First year
1983

The Moody 31 Mk I occupies a particular place in the lineage of British production cruisers — a boat that arrived in the early 1980s with a reputation for being sensibly engineered rather than fashionably styled. Designed by Bill Dixon and built by A.H. Moody & Sons Ltd. in Southampton, this masthead sloop on a fin keel drew immediate attention not for racing pretensions but for the kind of volume and practicality that families on coastal passages genuinely need. At just over thirty feet on deck it punches well above its class in interior space, and decades of British coastal sailing have established it as a benchmark against which comparable thirtyfooters are still measured.

Market snapshot

Median asking · 12 mo
$ 26,686
Asking price · 30 listings
Recent listings · 90 d
6
30 tracked · 12 mo
3-month price trend
+14.9%
vs. 12-mo median
Countries with listings
3
United Kingdom (90.0%) · France (6.7%) · Norway (3.3%)

Recent Listings

22 for sale · showing 10 newest

Moody 31 Mk I Buyer's Guide

The Moody 31 Mk I has earned a devoted following among British coastal cruising families, and for good reason — it represents a high point of early-1980s British production boatbuilding, where a yard with genuine offshore pedigree applied thick hull laminates, solid teak joinery, and careful design to a genuinely practical thirty-footer. Bill Dixon's brief was to deliver a boat that could sleep a family, handle the tidal waters of Northern Europe, and require minimal structural maintenance over decades of hard use. Largely, he succeeded. Shopping for one today means finding a mature design with real cruising credentials and a healthy support community, but also a boat that has had decades to accumulate deferred maintenance, ageing systems, and the particular quirks of its era. Going in with clear eyes pays dividends.

Layouts on the Used Market

The Moody 31 Mk I came with a notably generous interior for its waterline length, and the used market reflects the different ways owners configured that space. The more common arrangement on the brokerage market is the three-cabin layout — forward V-berth, a saloon with settee berths, and a dedicated aft cabin — giving the boat a genuine claim to sleeping six in something other than misery. Both the fin-keel and the twin bilge-keel variants appear on the used market, and the choice matters considerably depending on where you intend to sail. Bilge-keel boats draw substantially less and can sit upright when drying out, which made them the popular choice in the tidal creeks and drying harbours of the UK's south and east coasts. Fin-keel boats track better offshore and have a slight edge in upwind performance. Both configurations are worth considering on their merits rather than dismissing one out of hand.

Equipment and Common Upgrades

By the time a Moody 31 Mk I reaches today's market, it has typically been updated considerably from its original fit-out. Autopilot, chartplotter, and some form of cabin heating are commonly fitted — the British coastal environment that spawned this boat makes a reliable pilot and a warm cabin nearly essential, and most owners have attended to both. Solar panels appear frequently, often as a later addition when owners found themselves spending more time on the hook. Spinnaker gear comes up regularly, reflecting the Moody 31's capable downwind character when properly canvassed.

Among the upgrades that represent genuine owner investment, a dodger and bimini combination is a worthwhile find — those original Moody cockpits are comfortable but exposure on a grey English Channel passage benefits from shelter. Radar, an inverter, and a life raft are sometimes present and add measurable value to a passage-ready package. Hot water systems appear on a portion of boats and are a meaningful liveability upgrade. Electric winches are a less common but occasional owner addition on boats that have been cruised hard by aging crews. Asymmetric spinnaker gear appears on some boats, reflecting a shift in downwind sailing fashion among long-term owners. A swim platform, when fitted, is typically a later addition not original to the design.

What to Inspect

The Moody 31 Mk I's hull laminates were built with notable thickness for the era, and structural osmotic blistering is relatively uncommon but not unknown in older fiberglass hulls of this type — budget for a full hull survey with moisture meter readings regardless of appearance above the waterline. Pay particular attention to the keel-to-hull joint, a chronic vulnerability on fin-keel boats of this generation: examine the joint carefully for cracking, weeping, or signs of movement. On bilge-keel examples, inspect each keel plate and its associated reinforcement carefully, as the twin-keel configuration puts asymmetric loads on the hull during grounding and drying out.

The teak interior joinery is a selling point of the Moody 31, but teak trim and joinery can mask moisture ingress at deck fittings, hatches, and chainplates — probe beneath trim pieces, check the area around the chain plates carefully, and open every locker to check for damp. Deck hardware of this vintage frequently has compromised bedding after decades of use; water finding its way past deck fittings into the cored deck sections is a common finding on boats of this age. The skeg-hung rudder is a reassuring arrangement, but inspect the skeg-to-hull joint and the rudder bearings for play and wear.

The engine installation — typically a Volvo Penta diesel in either the smaller or larger configuration — is generally robust, but raw-water cooling circuits, heat exchangers, and exhaust systems deserve careful inspection on any example of this age. Saildrives, where fitted, require attention to the bellows seals, which have a finite service life and are a critical underwater component. Running rigging ages regardless of how little a boat is used; standing rigging on a boat that has not been refit deserves scepticism at this age, particularly the chainplates and any swaged fittings.

Availability and Buyer's Takeaway

The Moody 31 Mk I is primarily a British boat, and the United Kingdom remains the most productive hunting ground for examples, with France and Scandinavia producing a further scatter of listings. These boats rarely stray far from their Northern European origins, and a buyer in North America will find the pool thin and likely face significant import logistics. Within the UK and near-continent, however, the model is genuinely widely available and the community of owners willing to share knowledge is an asset in itself.

When viewing any example, work through this checklist before committing:

  • Full professional survey with moisture meter readings across the hull and deck
  • Keel-to-hull joint inspection — cracking, movement, or discoloration
  • Bilge-keel variant: individual keel attachments and hull reinforcement under each keel
  • Chainplate condition and backing plates — remove trim to inspect properly
  • Deck hardware bedding — probe for soft deck sections around fittings
  • Skeg-rudder joint and rudder bearing play
  • Engine raw-water circuit, heat exchanger, and exhaust inspection
  • Saildrive bellows condition, where applicable
  • Standing rigging age and chainplate integrity
  • Teak joinery for moisture concealment — check behind trim and in lockers
  • Interior cushions, upholstery, and headliner for mold or persistent damp

Where they're listed

Moody 31 Mk I listings appear across 3 countries. United Kingdom has the most listings with 27 (90.0%), followed by France and Norway.

Median ask by country
USD · past 12 months
Share of listings
Count · past 12 months

Country view

30 listings · 3 countries
CountryMedian askListings · 12 moActive · 90 dShare
United Kingdom$ 26,68627690.0%
France$ 28,496206.7%
Norway$ 18,380103.3%

Comparable models

Similar length, displacement, and era. Open a row to compare that model's market page.

Similar boats to compare

10 similar designs
ModelLOAMedian askListings · 12 moActive · 90 d
Moody 31 Mk II30.75'$ 33,299406
Moody 31 Mk IYou are here$ 26,686306
Moody S3131.76'$ 44,0432713
Moody 2727.67'$ 14,681258
Moody 3030'$ 17,516246
Moody 3433.42'$ 42,641213
Moody 3737'$ 66,665193
CAL 3131.5'$ 10,500189
Rustler 3131.42'$ 17,350155
Moody 33 Mk I33'$ 20,487134

Frequently asked questions

01How much does a used Moody 31 Mk I cost?+
The median asking price for a used Moody 31 Mk I over the past 12 months is $26,686. Prices vary by condition, year, equipment, and location.
02How many Moody 31 Mk I sailboats are for sale?+
6 Moody 31 Mk I listings have gone live in the last 90 days, and 30 have been tracked across the past 12 months.
03Are Moody 31 Mk I prices going up or down?+
The median asking price for the Moody 31 Mk I is up 14.9% over the last 3 months compared with the 12-month median.
04Where are Moody 31 Mk I sailboats for sale?+
The top markets for used Moody 31 Mk I listings over the past 12 months are United Kingdom (90.0%), France (6.7%), Norway (3.3%).
05What should I look at instead of a Moody 31 Mk I?+
Comparable models include Moody 31 Mk II, Moody S31, Moody 27. Use the comparison table above to check pricing and availability.