What is yacht draft?
Draft is the vertical distance between the waterline and the lowest underwater part of the vessel. It determines how much water depth the yacht requires to avoid contact with the bottom or other submerged hazards.
For waterfront-property search, draft becomes one of the most important vessel-specific inputs because the usable route can contain shallower areas far away from the property itself.
Dock depth is not route depth
A dock may have adequate water for a yacht while another segment of the route is shallower. The controlling depth can occur in a canal, channel, river, bridge approach, inlet, or other segment between the property and open water.
That is why marine access should be treated as a route problem. The relevant question is whether sufficient depth exists throughout the route the vessel actually needs to travel.
Depth interpretation
Factors that can change the answer
Tide and water level
Available water depth can vary with tide and other water-level conditions, so a static depth value does not necessarily represent every operating condition.
Shoaling
Sediment can accumulate in channels and approaches, changing real-world depth between surveys or dredging cycles.
Dredging
Maintained channels can change over time as dredging occurs, so dataset date and source matter.
Datum
Depth measurements need to be interpreted using the relevant vertical reference. Values from different datums should not be treated as directly interchangeable without adjustment.
Coverage gaps
Not every canal, private approach, or berth has equally complete hydrographic coverage. Missing data should be represented as uncertainty rather than assumed depth.
Safety margin
Practical navigation generally requires more than a mathematically exact match between vessel draft and available depth.
Why confidence matters
Depth information is not equally complete everywhere. Some route segments may be supported by recent, well-defined marine data, while others may have limited or indirect evidence.
A useful system should distinguish between a high-confidence depth determination and a route where the available data is insufficient to make a reliable conclusion.
Yacht.house therefore treats uncertainty as part of the result rather than silently filling data gaps with assumptions.
Draft is vessel-specific
A route that works for a shallow-draft boat may not work for a deeper-draft yacht. That means marine access cannot be described accurately with one universal yes-or-no waterfront label.
The property, route, marine constraints, and vessel dimensions have to be considered together.
Related Marine Access Guides
Continue evaluating the route
Marine conditions and available data can change. Yacht.house marine-access information supports property discovery and due diligence and should not replace current charts, notices, local knowledge, professional navigation judgment, or on-site verification where appropriate.