The Sandcastles

The Sandcastles is an oceanfront condominium building in Marco Island, Florida, with a range of options priced between $699,000 and $1,125,000 depending on the floor location and the view of the Atlantic Ocean. There are currently a total of 6 condos for sale in The Sandcastles. The smallest Sandcastles condo presently available is a one bedroom one bathroom residence that is 1,083 square feet (863SF Under Air living space), and the largest of the The Sandcastles condos currently on the market has two beds and two baths and is a 1,588 square foot (1,318SF Under Air) residence.

Building amenities include a clubhouse, swimming pool, spa / hot tub, a state-of-the-art fitness center, sauna, business center, vehicle wash area, and a library. Sports facilities include tennis courts, pickleball courts, and shuffleboard. Onsite dining venues consist of a picnic area, and a barbecue area. There is also private beach access.

Pets are allowed in The Sandcastles.

There are two commercial airports that serve The Sandcastles - Southwest Florida International Airport (RSW), which is 43 miles away, and Page Field (FMY), which is 47 miles away.

The Sandcastles real estate activity on the Marco Island MLS during the past year (as of June 2026) reflects three condos changing hands, with an average asking price of $1,101,000 and an average selling price of $1,061,667. This represents a healthy list-to-sell price ratio of 96% and $815 per square foot. During this period, The Sandcastles condos for sale have taken an average of 49 days to sell.

In addition, there are numerous other condo buildings in Marco Island to choose from, many with direct ocean views, or you may browse all available Condos for sale in Marco Island. Condos for sale in The Sandcastles are selling quickly. Set up a new listing alert, and we will notify you immediately when a new oceanfront condo in The Sandcastles hits the market. You can also always contact your BEX Realty agent, who would happily assist you further with all your Gulf Coast real estate needs.

The Sandcastles Condos For Sale

Under Contract

$1,125,000

MLS#226017796

720 S Collier Blvd 507
Marco Island, FL 34145

2

2

1

1,588 Sq Ft

Ocean Front

53 Days

$885,000

MLS#225038071

730 S Collier Blvd 106
Marco Island, FL 34145

2

2

1

1,588 Sq Ft

Water Front

860 Days

$875,000

MLS#226019186

730 S Collier Blvd 705
Marco Island, FL 34145

2

2

1,256 Sq Ft

Ocean Front

39 Days

Under Contract

$834,500

$884,500

MLS#226001817

730 S Collier Blvd 506
Marco Island, FL 34145

2

2

1

1,318 Sq Ft

Water Front

152 Days

$729,000

MLS#226023054

720 S Collier Blvd 904
Marco Island, FL 34145

1

2

1

1,083 Sq Ft

Ocean Front

9 Days

$699,000

MLS#225084029

730 S Collier Blvd 904
Marco Island, FL 34145

1

2

1,083 Sq Ft

Ocean Front

187 Days

6 Active Listings in The Sandcastles