Dufour 520 Grand Large Buyer's Guide
The Dufour 520 Grand Large is a Felci-designed 50-foot cruiser that succeeded the GL 500, built from 2017 with a focus on social cockpit spaces and flexible accommodation. On the brokerage market she appears mostly in ex-charter four-cabin form, though private-style layouts are also to be found. This guide covers what to look for and how the boat is typically equipped secondhand.
Layouts on the Used Market
Charter four-cabin layouts are the more common on the used market, but both are available; ex-charter examples are common. The original four choices ran from three cabins and three heads through three cabins with a Pullman, four cabins and four heads, to four cabins with three heads and a Pullman. The aft port double was built to split into two singles, and a private-use arrangement placed a sumptuous master forward with split head and two cabins aft. The galley sits athwartship at the main bulkhead with stove and sink to port and refrigerator drawers to starboard, and an electric hi/lo table plus a level-adjusting nav desk show the interior was meant to serve a full crew.
Equipment and Common Upgrades
Teak decks, air conditioning, chartplotter, swim platform, autopilot, cockpit shower, and bimini are commonly fitted, so most buyers will find a turnkey boat in those respects. Often-seen additions include an inverter, bow thruster, heating, and electric winches — the last worth having given the 520's size. Less common but present as owner upgrades are freezer, furling main, radar, AIS, and life raft. For a shopper, the meaningful clusters are power and energy (inverter, sometimes generator via owner fit), canvas and sail handling (bimini, furling main, electric winches), and navigation (chartplotter, radar, AIS), with comfort covered by air conditioning and heating.
What to Inspect
The engine panel and throttle were placed near the cockpit sole and aft under the rear seat, so check that the location is serviceable and not obscured by cushions or upgrades anchor. Sheets and halyards on the tested boat were all the same color; on a used Dufour 520 Grand Large verify the running rigging has been re-marked or color-coded to avoid confusion at the winches anchor. Otherwise the hull is hand-laid solid glass below the waterline and PVC-cored above with polyester resin throughout, and the structural grid is glued and tabbed in.
Availability and Buyer's Takeaway
Typical markets are Croatia, Italy, Greece, Seychelles, Guadeloupe, and France. For a buyer, the checklist is short: confirm which of the four layouts you are viewing and whether it is ex-charter; verify the throttle and panel reach under the rear seat; check that lines are color-differentiated; and note whether electric winches, bow thruster, and inverter are present as these are frequent rather than universal. The 520 is a well-equipped entertaining cruiser whose main used-market caveats are small ergonomic ones.
Price & volume trends
Monthly asking-price and listing-volume trends for the Dufour 520 Grand Large. The line shows the median ask each month; the bars show how many listings appeared.
Monthly breakdown · 15 rows
| Month | Listings | Median ask | Δ vs. last mo. |
|---|---|---|---|
| Apr 25 | 1 | $87,309 | — |
| Jun 25 | 1 | $197,901 | +126.7% |
| Jul 25 | 3 | $186,260 | -5.9% |
| Sep 25 | 8 | $272,681 | +46.4% |
| Oct 25 | 3 | $279,390 | +2.5% |
| Nov 25 | 1 | $430,726 | +54.2% |
| Dec 25 | 9 | $313,149 | -27.3% |
| Jan 26 | 3 | $275,897 | -11.9% |
| Feb 26 | 4 | $317,224 | +15.0% |
| Mar 26 | 2 | $331,775 | +4.6% |
| Apr 26 | 18 | $337,014 | +1.6% |
| May 26 | 2 | $253,197 | -24.9% |
| Jun 26 | 4 | $273,569 | +8.0% |
| Jul 26 | 2 | $343,417 | +25.5% |
| Aug 26 | 2 | $300,539 | -12.5% |
Where they're listed
Dufour 520 Grand Large listings appear across 8 countries. Croatia has the most listings with 29 (51.8%), followed by Italy and Greece.
Country view
56 listings · 8 countries| Country | Median ask | Listings · 12 mo | Active · 90 d | Share |
|---|---|---|---|---|
| Croatia | $313,149 | 29 | 3 | 51.8% |
| Italy | $325,955 | 19 | 4 | 33.9% |
| Greece | $330,000 | 3 | 0 | 5.4% |
| Saint Barthelemy | $376,761 | 1 | 0 | 1.8% |
| Spain | $436,547 | 1 | 0 | 1.8% |
| France | $383,034 | 1 | 0 | 1.8% |
| Martinique | $180,439 | 1 | 0 | 1.8% |
| Turkey | $308,493 | 1 | 0 | 1.8% |
Comparable models
Similar length, displacement, and era. Open a row to compare that model's market page.
Similar boats to compare
11 similar designs| Model | LOA | Median ask | Listings · 12 mo | Active · 90 d |
|---|---|---|---|---|
| Dufour 430 Grand Large | 43.44' | $ 247,790 | 80 | 21 |
| Dufour 530 | 53.64' | $ 523,827 | 78 | 10 |
| Dufour 520 Grand LargeYou are here | — | $ 326,151 | 58 | 8 |
| Dufour 512 Grand Large | 49.87' | $ 360,746 | 52 | 7 |
| Dufour 405 Grand Large | 39.93' | $ 147,933 | 45 | 6 |
| Dufour 425 Grand Large | 42.32' | $ 150,263 | 39 | 11 |
| Dufour 445 Grand Large | 44.29' | $ 214,771 | 29 | 0 |
| Voyage Yachts 520 | 51.9' | $ 450,000 | 25 | 10 |
| Dufour 500 Grand Large | 49.54' | $ 314,503 | 23 | 2 |
| Dufour 485 Grand Large | 48.33' | $ 232,383 | 18 | 6 |
| Dufour 525 Grand Large | 50.23' | $ 279,000 | 17 | 3 |