Stonewater, Mount Holly: Mountain Island Lake's Gated Luxury Waterfront Community

The reservoir that barely allows shoreline homes

Mountain Island Lake is the smallest of the three Catawba reservoirs that ring Charlotte: about 3,281 acres and roughly 61 miles of shoreline, impounded in 1924 at the Mountain Island Dam and the eighth of eleven reservoirs in Duke Energy's Catawba-Wateree hydro system. It holds only about three percent of the system's usable water storage, and its primary client is not a boater at all. It is Charlotte's drinking-water reservoir, which is why so much of its eastern shore in Mecklenburg County is preserved watershed, parkland and Charlotte Water holdings rather than development.

That protection is exactly why Stonewater matters. On the Gaston County side, in Mount Holly, a gated master-planned community of custom homes was built on the water anyway, at the scale and finish of a Lake Norman club community. For buyers who assumed the reservoir had no luxury addresses, it is the exception that reorders the search.

A Shea Homes master plan on the western shore

Stonewater was developed by Shea Homes as a planned, gated community off NC 16 near the Riverbend shopping center on the Mount Holly side of the lake. More than 400 single-family homes fill the plan, most of them four to six bedrooms and roughly 2,500 square feet and up, on wooded lots that mostly run under half an acre with a scattering of larger estate parcels approaching an acre.

The composition is deliberately varied rather than repetitive: brick, stone and mixed-facade elevations, deep porches on the water side, and streets that step downhill toward the shore. It reads as a country-club build without a club membership attached, which is the point for many owners who want the community without the golf.

Slips, lifts and the deliberate absence of a marina

The most important fact about Stonewater's water side is what is not there: there is no full-service marina on Mountain Island Lake, by design. A commercial marina full of fuel and rental boats is hard to square with a drinking-water reservoir, so the lake's boating life runs on private docks, community slips and kayak launches.

Inside Stonewater, that means community boat slips and storage for non-waterfront homes, deeded slips with lifts recorded against many waterfront properties, and a neighborhood dock scene that stays orderly and quiet. For the buyer, the question to ask before offering is which one the listing carries: a private dock, a deeded slip that transfers at closing, or community access, and what the depth at the dock face actually is at the 647.5-foot full-pond line.

The amenity ledger, focused on the water

Gated entry, a clubhouse, a pool that overlooks the lake, tennis, pickleball, basketball and volleyball courts, playgrounds, walking trails, a kayak launch with kayak and paddleboard storage, and boat and RV storage: Stonewater's amenity set is built around the water rather than around a golf course, which keeps the dues proportionate and the community oriented toward the shoreline.

Families and serious boaters use different parts of the ledger, and both are served. The kayak launch solves the problem of a lake with no public ramps nearby, and the boat storage keeps trailered craft off the streets.

Duke Energy water, with a stricter shoreline

Every dock, slip, lift and walkway in Stonewater sits on Duke Energy land below Mountain Island Lake's 647.5-foot full-pond line, and each structure carries a recorded Lake Use Permit under the Catawba-Wateree Shoreline Management Program. Shoreline work inside the 50-foot buffer has its own review, and the rule that changed for all three lakes in July 2026 applies here with extra force: Duke Energy no longer reviews new private dock applications on lots where no home is constructed, so on a reservoir with little vacant buildable shoreline, an improved dock with a permit in hand is very nearly the entire asset.

On a resale, the permit transfers to the new owner through Duke Energy's Lake Access Permit System after a Lake Services inspection. Because this lake's shoreline is managed more strictly than Lake Norman's or Lake Wylie's, the diligence question is not optional: does the permit on file match what stands on the shore, and is it in the seller's name?

What to verify before you offer in Stonewater

Run the Mountain Island Lake checklist in order: the dock or slip and its Duke Energy permit history, the depth at the dock face at full pond, the survey note showing the 647.5-foot contour and the 50-foot buffer, and the condition of the shoreline. Then add the Stonewater questions: private dock, deeded slip or community access, the dues rate and exactly what it covers, and the covenants governing dock style, boat storage and rentals.

The gap between lakefront and water-adjacent with a deeded slip is a real price gap, and the community's slip association records settle it. Read the documents, then walk the shore; on a protected reservoir, the buffer tells the truest story about a property.

The bottom line

For the serious waterfront buyer, Stonewater is Mountain Island Lake's strongest answer: a gated, master-planned community of custom homes, deeded water rights, a quiet neighborhood dock culture and a twenty-minute commute to Uptown Charlotte, all on the one lake where shoreline homes were never supposed to be plentiful. It is the reservoir's counterpart to Northview Harbour on Lake Norman's far shore and Tega Cay on Lake Wylie, and for buyers who want lake ownership without the volume of the bigger reservoirs, it is often the most direct comparison of the three. Compare the neighborhoods in the journal, then request a private valuation or book a consultation with Vic and Amy Petrenko at The Petrenko Group, Premier Sotheby's International Realty. They represent buyers and sellers across Lake Norman, Cornelius, Davidson, Mooresville, Denver, Sherrills Ford, Huntersville, Charlotte and Lake Wylie, and they know which docks, permits and shorelines are worth paying for.