LM Mermaid 315 Buyer's Guide
Shopping the brokerage market for an LM Mermaid 315 means chasing a scarce Danish motorsailer: fewer than 100 were built by LM Glasfiber A/S to Bent Juul Andersen's early-eighties design, so each example on offer is one of a small surviving fleet. She is a masthead-rigged motorsailer with a teak interior and a six-berth layout, offered in a handful of keel and engine configurations that matter more than cosmetics when you compare used boats.
Layouts on the Used Market
The constant across every used Mermaid 315 is the six-berth interior with galley, head, and teak joinery. What varies is the underwater and mechanical package: the yard built her with different keel alternatives in iron or lead, and with either a Bukh DV20 20 hp diesel on a saildrive or a second 20 hp diesel alternative also on saildrive. Draft runs about 5.2 to 5.5 ft with load, so bridgeage and haulout depth are predictable but not shoal. A fiberglass fuel tank of 70 liters and 140 liters of fresh water define the cruising envelope regardless of which powerplant a hull carries.
Equipment and Common Upgrades
Teak decks are commonly fitted on boats in this class, a buyer-consequence item because they demand regular caulking and eventual recoring scrutiny. Beyond that, the meaningful used-market differences are the as-built engine and keel choices rather than added gear; the sail plan is the standard masthead sloop with about 441 sq ft of main and jib. A buyer should confirm which diesel and which ballast metal a specific hull has before weighing upgrade cost.
What to Inspect
Because the model left the mold with different keel alternatives, confirm whether the ballast is iron or lead and check for any keel-bolt or hull-keel joint staining at haulout built with different keel alternatives. The engine may be the Bukh DV20 or the alternative 20 hp diesel, both on saildrive legs — inspect the saildrive seals and diaphragm for weepage, since that transmission type is age-sensitive. Verify the fiberglass fuel tank (70 L) and the 140 L fresh water tank for wall integrity and any past repair.
Availability and Buyer's Takeaway
These boats are typically found in Denmark. For a shopper, the short checklist is: confirm keel metal (iron vs lead), confirm engine identity and saildrive condition, inspect the commonly fitted teak deck, and validate tank condition. The Mermaid 315 rewards the careful buyer with a stable, comfortable pocket motorsailer in very limited supply.
Price & volume trends
Monthly asking-price and listing-volume trends for the LM Mermaid 315. The line shows the median ask each month; the bars show how many listings appeared.
Monthly breakdown · 2 rows
| Month | Listings | Median ask | Δ vs. last mo. |
|---|---|---|---|
| Sep 25 | 1 | $33,492 | — |
| Apr 26 | 2 | $23,229 | -30.6% |
Where they're listed
LM Mermaid 315 listings appear across 1 country. Denmark has the most listings with 3.
Country view
3 listings · 1 country| Country | Median ask | Listings · 12 mo | Active · 90 d | Share |
|---|---|---|---|---|
| Denmark | $24,804 | 3 | 0 | 100.0% |
Comparable models
Similar length, displacement, and era. Open a row to compare that model's market page.
Similar boats to compare
5 similar designs| Model | LOA | Median ask | Listings · 12 mo | Active · 90 d |
|---|---|---|---|---|
| Hanse 315 (2006) | 31' | $ 108,299 | 75 | 21 |
| Moody 31 Mk I | 30.75' | $ 27,169 | 28 | 3 |
| Catalina 315 | 31.92' | $ 155,000 | 25 | 7 |
| Seamaster Sailer 815 | 26.75' | $ 6,250 | 8 | 3 |
| LM Mermaid 315You are here | — | $ 24,804 | 3 | 0 |