I read through this post back in March when we bought our trawler. Now posting with an update: we bought our slip membership here at Duwamish Yacht Club. There was nothing even close for a 40' long / 13' beam vessel like this, and yes that's taking into consideration the Big Duwamish Problem:
A.K.A. the times when the boat is sitting in the muddy silt! Yes I already know about that and it's not a big deal. Plus they made progress on that with the new Commodore and everyone working on it, so now the dredge has been scheduled for November 2025 so there will be plenty of depth at negative tide after that for another 10 years or so.
The way DYC works is privately operated membership club by the members themselves, so dues are very low, only about $450/mo.
Cost of the dredge assessment was about $22k and the one-time fee for becoming an owner was about $4k. No we don't own the water rights or any deeded real estate but we can: live on the boat; lease the slip directly to a tenant (who can also live aboard if the overall marina renters quota is not yet met, which right now it is not); customize the dock to our liking, such as but adding cleats and pads; get Xfinity hard line at the dock; 24/7 access but community is gated; option to pay more for other things like trailer parking or shed rental; use the clubhouse and BBQs any time for free; there's a dog run for our Husky to poop at; walking distance to useful shops and food; a nearby free public boat ramp; and the marina is quiet. Quiet except for planes all day, we are under a few flight paths, but I love planes so this ended up being great for me being so close to Boeing field.
The nearest comp which is not really very comparable at all is the marina closest to us on Lake WA which has 30' slips for sale for about $120k. Apples and oranges, I know, but what I'm saying is DYC is a ton of bang for your buck. If I had a ton of cash lying around I'd buy up every open slip here. Added bonus: things get flushed with the river water every trip back home which has been a godsend for corrosion prevention.
YMMV but hope this info is useful if anyone is curious what the story is here on the river.
- Josh