This site holds all three. Nearly a third of an acre, 14,810 square feet, on 21st Avenue South, the street Aqualane buyers name first and leave last. At the back of the lot, deep water: one of the canals that made this neighborhood the boating address of Naples, with Naples Bay, Gordon Pass, and the Gulf minutes beyond.
The 1978 residence standing here has served its era. What you are buying is what comes next: the site for the home you have been planning in the back of your mind, at the address that justifies building it at full scale.
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Between Third Street South and Naples Bay, Aqualane Shores is Olde Naples’ boating neighborhood: canal-front lots with deep water leading to Naples Bay, Gordon Pass, and the Gulf. Opportunities here open when an owner lets go, and they close the same way: quietly, to the buyer who saw the future first.
This is a purchase measured in decades, not finishes.
Three sales on 21st Avenue South have closed at $10M or more: 375 21st Ave S at $16.95M, 395 21st Ave S at $15.6M, and 255 21st Ave S at $12.0M. All three closed within the last 26 months. Gordon Drive and 17th Avenue South still carry more $10M+ sales all-time, but every one of 21st Ave S’s top-tier sales is current activity, not legacy volume.
Two of those cycles are county-confirmed: the lot sold as vacant land, then resold as a finished home. 701 21st Ave S went from $3.65M to $9.70M in two years; 375 21st Ave S went from $4.65M to $16.95M in three.
Source: Collier County Property Appraiser sales roll (public record), qualified arms-length sales. Not MLS data.
30 minutes, no script. Lot lines, water access, and what a new build at full scale could look like here.
605 21st Avenue South is listed at $5,500,000.
14,810 square feet, nearly a third of an acre, on 21st Avenue South in Aqualane Shores.
A 3-bedroom, 2-bath, 1,847-square-foot residence built in 1978 stands on the site today. Most buyers at this address are expected to build new; the value here is the ground, the water, and the street.
Yes. The rear of the lot backs to a deep water canal with access to Naples Bay, Gordon Pass, and the Gulf of Mexico. Dock and seawall specifics are confirmed on a private walkthrough.
Aqualane Shores, between Third Street South and Naples Bay in Olde Naples. 21st Avenue South is widely recognized as one of the neighborhood’s most valuable and desired streets.
The first conversation is about fit, not a contract.
