In my job as a Maine real estate broker when asked about minimum lot size for ME waterfront property on a lake, river, stream it depends on some factors.
The size of the lot has a state of Maine minimum but you need to check in the specific ME municipality you are considering buying in to see if an above and beyond standard, somehting beefed up for how big a property has to be size wise, dimension wise to pass muster, be buildable.
Here's the size/frontage for Maine residential, commercial applications of ME real estate on the water in "Vacationland".
|Tidal Waters||Inland Waters|
|Residential Lot Size:||30,000 square feet||40,000 square feet|
|Residential Lot Frontage:||150 ft. shore frontage||200 ft. shore frontage|
|Commercial Lot Size:||40,000 square feet||60,000 square feet|
|Commercial Frontage||200 ft. shore frontage||300 ft. shore frontage|
We often find a lot that has the minimum lot width but not the depth to have enough square footage. When you look on both sides of that empty Maine lakefront lot, you may see a cottage here, a home there when you do a scan of what is happening in the waterfront neighborhood. Those structures were built before the shoreland zoning regulations established or tightened the standard. And a lot in Maine on a lake with only 100 depth is going to be no good for building as your septic system, your new proposed building has to be 100 or more from the water line of the Maine lake. Roads can not be included in that less than 100 feet from the water line too. But meandering paths on a conforming lot are okay. Just make them wind to the Maine lakeshore. A straight path on an incline and as you develop, clear a building spot 100 back from the lake is going to cause erosion, sediment to race in to that valuable Maine real estate you want to enjoy, protect, preserver.
What happens if the lot does not meet the state of Maine, ME muncipality's minimum lot size? A non-conforming lot that predates the local ordinance means see your the local Code Enforcement Officer to study the situation. The Maine shoreland zoning regulations are not a one page legislation but an on going process of adding more and more perimeters, protections, clarification in to the ME waterfront resource protection laws. And remember, the setback for structures on great ponds or rivers flowing into great ponds is 100 feet. A 75 foot setback applies to all other water bodies, streams and wetlands.