The Residences at The St. Regis Costa Mujeres Resort sit on the stretch of Caribbean coast north of Cancún that faces Isla Mujeres, inside the AB District, a purpose-built destination on white sand between untouched jungle and the bay. The resort opens in summer 2026, and the residences come with it: a rare case in the branded world where buyers take delivery of a completed, operating St. Regis rather than a construction promise.

The typologies run wider than most resort residences. Two-bedroom homes start at 235 square metres, three-bedrooms run from 322 to 363, four-bedrooms stretch from 409 to 764, a five-bedroom at 590, and the two-story penthouses top out at 901 square metres. That scale puts the project in a different league from the 120-160 square metre branded apartments selling elsewhere on the Mexican Caribbean, and the finish specification reads accordingly: integrated contemporary kitchens with high-end appliances, wine cellars, pantries, utility rooms, generous dressing rooms, and terraces built to connect the interiors to the sea view rather than to decorate it.

Every residence comes fully furnished and equipped, dressed by an interior design team working to St. Regis brand standards, down to the linen and the cutlery, so owners genuinely take the key and start living. Service runs the full brand playbook: St. Regis Butler, Residence Manager, concierge, porte cochere, and the rituals the brand is known for, from Afternoon Tea to the original Bloody Mary recipe at Sunday brunch. Owners share the resort's common areas, restaurants, Beach Club, private pier and activities, including diving on the most important coral reef in the northern hemisphere.

Pricing is not published on the official site, which is standard for this developer. Secondary listings put entry-level residences from around 2 million US dollars, with penthouse product several times that, consistent with the scale and the St. Regis positioning at the top of the Costa Mujeres market.

The investment case has two legs. Costa Mujeres is the quiet counterweight to the hotel zone: a low-density master district ten minutes from golf, marinas and shopping, thirty from Cancún International's direct international connections, with a protected mangrove and cenote landscape that cannot be replicated closer to town. And a completed St. Regis resort residence answers the single biggest objection to buying branded product off-plan, delivery risk, because here the hotel and the homes arrive together. The AB District branding around longevity and wellness also points at the buyer profile the developer is courting: the permanently resident ultra-prime customer, not the rental yield hunter.

For the portfolio view, this is the third St. Regis card in our coverage alongside Cap Cana and Los Cabos, and it extends our Mexican Caribbean cluster alongside Mayakoba and Tropicalia. It is also the first card in the collection where the resort opening and the residence delivery are the same event, which is worth tracking as a market signal.