Marco Island • 720 S Collier Boulevard • South Beach • Gulf-Front Condominiums
Sandcastle II Marco Island Condos for Sale
Sandcastle II is a direct Gulf-front condominium at 720 S Collier Boulevard on the southern end of Marco Island's Crescent Beach. Completed in 1983, the 16-story building contains 94 individually owned residences and offers one- and two-bedroom floor plans with private outdoor living and direct views toward the Gulf and white-sand beach.
Sandcastle II combines beachfront ownership with a substantial amenity package that includes a large heated swimming pool, Jacuzzi-style spa, tennis, pickleball, fitness center, sauna, activity and social room, outdoor grills and covered parking.
The building's distinctive projecting balconies create a strong visual connection with the Gulf. Residence size and position vary enough that buyers should compare the exact floor plan, floor height and exposure instead of relying on one broad building-wide price-per-square-foot calculation.
720 S Collier Boulevard Built 1983 94 Residences 16 Stories Direct Gulf Beachfront 1 & 2 Bedroom Condos Heated Pool & Spa Fitness & Sauna Tennis & Pickleball Covered Parking 30-Day Rental Minimum Up to 12 Leases Per Year
Sandcastle II at 720 S Collier Boulevard
Sandcastle II occupies a direct beachfront site near the southern end of Marco Island's main Gulf shoreline. Owners can move from the condominium grounds toward the beach without crossing South Collier Boulevard or relying on a public beach entrance.
The location combines direct Gulf frontage with convenient access to restaurants, shopping and entertainment along the South Collier corridor.
This portion of the island is particularly attractive to buyers who want a beachfront condominium while remaining close to the South Beach area and the commercial destinations concentrated near the southern end of Marco Island.
Sandcastle II Floor Plans & Residence Sizes
The Sandcastle II association identifies the building as a collection of one- and two-bedroom residences. Within those two broad categories, however, interior area and balcony configuration vary materially.
One-Bedroom Residences Documented Sandcastle II one-bedroom homes include approximately 863 air-conditioned square feet, commonly with one full bath and an additional half bath.
Compact Two-Bedroom Residences Current property records include two-bedroom, two-bath configurations of approximately 962 air-conditioned square feet plus private outdoor living.
1,148-Square-Foot Two-Bedroom Plans A well-established two-bedroom, two-bath Sandcastle II configuration provides approximately 1,148 air-conditioned square feet and a substantial Gulf-facing balcony.
1,318-Square-Foot Two-Bedroom Plans Larger two-bedroom residences provide approximately 1,318 square feet and can offer broad Gulf and secondary island exposure depending on building position.
Upper-Floor Configurations Public property records identify selected upper-level Sandcastle II residences extending to approximately 1,661 square feet. Buyers should verify the original and current configuration of these less common homes.
Private Balconies & Lanais Outdoor space is integral to the building design and can materially change usable area, view width and the experience of otherwise similar residences.
One-Bedroom Sandcastle II Condos
Sandcastle II's one-bedroom residences provide a comparatively efficient entry into direct Marco Island beachfront ownership.
Documented examples include approximately 863 square feet of air-conditioned living area, generally with one full bath plus a half bath.
The principal value factors remain the same as in larger residences: floor level, unit position, Gulf exposure, balcony, parking, renovation and hurricane protection.
A smaller residence with an exceptional direct Gulf outlook may therefore compete differently from another one-bedroom unit with a less commanding exposure.
Two-Bedroom Sandcastle II Condos
Two-bedroom residences form the largest portion of the Sandcastle II market and are available in several documented interior sizes.
Current property records include a lower-floor two-bedroom, two-bath configuration of approximately 962 air-conditioned square feet, while other well-established plans provide approximately 1,148 square feet or 1,318 square feet.
That variation makes living area especially important when selecting comparable sales. Two units with the same bedroom count can still differ by several hundred square feet before balcony, floor and view differences are considered.
Gulf, Beach & Sunset Views
Sandcastle II was designed around its direct Gulf-front position. The association describes the building's living rooms, dining areas and bedrooms as having strong visual connections with the Gulf and beach.
Balconies project outward from the building, creating broad vantage points over the shoreline and Gulf of Mexico.
Actual view quality still changes by stack and elevation. Southwestern exposures can emphasize the coastline and sunsets, while other positions may combine Gulf, beach, pool and inland Marco Island views.
Sandcastle II view analysis: compare the view from the living area, primary bedroom and balcony of the specific residence. Floor number alone does not establish the complete view premium.
Private Balconies & Outdoor Living
Private balconies are a defining architectural feature at Sandcastle II and create a natural extension of each residence toward the Gulf.
Depending on unit position, outdoor space can provide direct western Gulf views, southwest shoreline views or a combination of Gulf and inland perspectives.
Buyers should compare balcony width, depth, railing system, waterproofing, sliding doors, impact protection and association responsibility for exterior components.
Direct Marco Island Beach Access
Sandcastle II is located directly on Marco Island's Gulf beach.
Residents have secure access from the condominium grounds toward the white-sand shoreline, making beach walking, shelling, swimming and sunset viewing part of the property's everyday lifestyle.
Direct beach frontage is permanent real estate value that cannot be recreated through an interior renovation and should therefore be separated from finishes when comparing residences.
Large Heated Pool & Spa
Sandcastle II provides a large heated swimming pool within its beachfront recreation area together with a Jacuzzi-style community spa.
The pool provides owners and guests with a maintained swimming alternative to the Gulf while retaining the atmosphere of a beachfront resort.
Outdoor grills and nearby gathering areas support casual dining and entertaining around the recreation grounds.
Fitness Center & Sauna
The building includes an on-site fitness center and sauna.
These amenities complement beach walking, swimming and racquet sports and allow residents to maintain an exercise routine without leaving the condominium property.
Tennis, Pickleball & Shuffleboard
Sandcastle II provides tennis and pickleball courts within the community recreation area.
Current property records also identify shuffleboard as an additional outdoor amenity.
Buyers who make racquet sports an important part of their purchase decision should confirm current court configuration, reservation procedures and guest rules.
Activity Room, Social Room & Library
Sandcastle II includes an activity and social room for resident gatherings and association functions.
Property records have also identified library space and a kitchen supporting the community room, expanding the building's indoor amenity offering beyond fitness and sauna facilities.
Assigned Covered Parking
The association identifies covered parking as a Sandcastle II amenity, while individual MLS records commonly identify one assigned space associated with each residence.
Some property records describe the parking as under-building or garage parking, while others use covered or detached terminology. For that reason, the exact legal and physical parking arrangement should be verified for each unit.
Parking due diligence: confirm the exact assigned space, location, coverage, transfer rights and current vehicle restrictions through the condominium documents and title information.
Extra Storage, Bicycle Storage & Vehicle-Wash Area
Current Sandcastle II property information identifies extra storage and bicycle-storage facilities.
Selected MLS records also identify a vehicle-wash area within the common property.
Buyers should verify the storage assignment that transfers with the specific condominium because location and configuration may vary.
Secure Building Access
Sandcastle II incorporates controlled building access appropriate to a residential beachfront high-rise.
Current property records identify fob entry, telephone entry, camera systems and secure access features on individual listings.
Access procedures for owners, renters, guests, contractors and deliveries should be confirmed through current association rules.
Impact Glass & Hurricane Protection
Hurricane protection varies by individual Sandcastle II residence.
Current and recent listings include examples with impact-resistant windows and sliders, while some residences also retain supplemental manual or electric shutter protection.
Buyers should inspect every exterior opening individually rather than assume the entire residence has one uniform protection system.
Renovated vs. More Original Sandcastle II Condos
Sandcastle II was completed in 1983, so individual residences now reflect very different renovation histories.
Updated homes may include redesigned kitchens, renovated bathrooms, impact glazing, newer flooring, custom cabinetry, closet systems and replacement mechanical equipment.
Other residences may preserve more of an earlier configuration and provide buyers with an opportunity to remodel around a desirable floor plan, elevation and Gulf view.
Kitchen Review cabinetry, counters, appliances, plumbing, electrical work and any material changes to the original layout.
Bathrooms Evaluate plumbing, waterproofing, fixtures and renovation quality.
Impact Protection Verify windows, sliders, exterior doors and supplemental shutters.
HVAC & Water Heater Confirm age, maintenance history and anticipated replacement requirements.
Flooring Review flooring materials and applicable condominium sound-control requirements.
Permits & Approval Material alterations should be reviewed for required permits and association approval.
Sandcastle II Rental Rules
The Sandcastle II association publicly identifies a minimum rental term of one month.
Current MLS information further identifies a 30-day minimum lease period with up to 12 leases per year.
This provides more rental flexibility than many Marco Island beachfront buildings requiring 90-day, six-month or annual leases, while remaining different from the island's weekly-rental properties.
Current published rental guidance: 30-day minimum and up to 12 leases per year. Buyers should verify the current declaration, lease application, approval process, guest rules and any amendments before purchasing for rental use.
Sandcastle II Pet Policy
Current MLS records indicate that household pets are restricted and may be subject to association approval or number limits.
Earlier MLS information for individual residences has identified a one-pet limit with a weight restriction, while newer records may display the rule more generally as a number limitation.
Because the exact published wording can change, buyers purchasing with a dog or other household pet should obtain the current written Sandcastle II rules directly from the association rather than relying on an older listing.
The Sandcastle II Condominium Association
The active legal association is The Sandcastle II Condominium Association, Inc. at 720 S Collier Boulevard.
The association was originally filed with the State of Florida in 1981 and remains active, with a 2026 annual report on file.
A purchase should include review of both the private condominium and the financial, structural and insurance position of the association.
Operating Budget Review recurring building expenses, management, utilities and services included through condominium assessments.
Reserve Funding Compare available reserves with anticipated long-term repair and replacement obligations.
Master Insurance Review property and wind coverage together with deductibles and major exclusions.
Special Assessments Identify approved, pending, recently completed and reasonably anticipated assessments.
Structural Documentation Review applicable milestone inspections, engineering reports and Structural Integrity Reserve Study information.
Capital Projects Understand exterior, balconies, elevators, roof, pool, parking, waterproofing and mechanical-system projects.
Flood, Wind & Sandcastle II Condo Insurance
Sandcastle II's direct Gulf-front location makes master insurance and individual condominium coverage important parts of purchase due diligence.
Buyers should understand how the association's master policy interacts with individual HO-6 insurance, including wind deductibles, loss-assessment protection and responsibility for interior improvements.
Responsibility for windows, exterior doors, sliding doors and storm-protection systems should also be confirmed through the current governing documents.
What Sandcastle II Buyers Should Compare
Bedroom Configuration Separate one-bedroom and two-bedroom residences before evaluating comparable sales.
Living Area Documented configurations range from approximately 863 square feet to substantially larger upper-floor residences.
Unit Position Stack affects Gulf orientation, natural light and secondary island views.
Floor Height Elevation changes the Gulf horizon, beach perspective and privacy.
Gulf View Compare open-water and beach visibility from primary living spaces and bedrooms.
Balcony Evaluate size, orientation, usable depth, railings and storm protection.
Parking Verify the specific assigned covered or under-building space.
Storage Confirm the private storage allocation associated with the unit.
Impact Protection Verify impact glass, sliders, doors and supplemental shutters.
Renovation Separate decorative finishes from plumbing, electrical and mechanical improvements.
Association Financials Review budget, reserves, insurance, assessments and capital planning.
Structural Review Obtain current applicable engineering, inspection and reserve-study information.
Rental Rules Current published information supports a 30-day minimum and up to 12 leases per year.
Pet Rules Obtain current written confirmation of approval, number and size restrictions.
How to Value a Sandcastle II Condo
Sandcastle II should be valued through the most relevant same-building transactions before expanding the comparison to other Marco Island beachfront condominiums.
An approximately 863-square-foot one-bedroom residence should not be treated as interchangeable with a 962-, 1,148- or 1,318-square-foot two-bedroom residence.
Once the correct floor-plan group is established, buyers and sellers can compare unit position, floor height, Gulf exposure, balcony, parking, storage, impact protection and renovation.
Sandcastle II valuation sequence: bedroom and floor-plan type → living area → unit position → floor height → Gulf and beach view → balcony → parking & storage → impact protection → renovation → association condition.
Sandcastle II Marco Island Condos for Sale
Current real-estate records identify the building as Sandcastle II, with the subdivision or legal description appearing as Sandcastle II, The A Condo or Sandcastle II, The A Condominium.
The broader development may also appear in MLS data as Sandcastle At Marco Beach, making the building-specific Sandcastle II subdivision filter important when searching for comparable properties.
Use the dedicated Sandcastle II search below for current availability and the Marco Island waterfront condo market report for broader beachfront market context.
Sandcastle II Condos For Sale • Sandcastle II Map Search • Marco Island Waterfront Condo Market Report
Compare Marco Island Beachfront Condos
Compare Sandcastle II with other established Marco Island Gulf-front condominium buildings by residence size, floor plan, view, balcony, parking, amenities, rental provisions and association characteristics.
Sandcastle I vs. Sandcastle II
Sandcastle I and Sandcastle II stand next to one another on Marco Island's beachfront and share a similar architectural identity, but they are separate condominium buildings with separate legal associations.
Sandcastle I is at 730 S Collier Boulevard and was completed in 1982, while Sandcastle II is at 720 S Collier Boulevard and was completed in 1983.
Each building contains approximately 94 residences and rises 16 stories, but buyers should keep their sales, financial statements, insurance, reserve funding, assessments and governing documents separate when evaluating a purchase.
The buildings can still provide useful cross-comparisons after same-building transactions have been analyzed because they compete for many of the same South Beach buyers.
Selling a Sandcastle II Condo
Sandcastle II sellers should begin with the correct bedroom count, interior living area, unit position and floor height.
The building contains multiple two-bedroom sizes, so a 962-square-foot residence should not automatically be compared with 1,148- or 1,318-square-foot homes simply because each contains two bedrooms.
Gulf view, balcony exposure, parking, storage, impact protection and renovation can then be used to distinguish the property from the most relevant same-building transactions.
Explore Sandcastle II With Schulz Realty
Schulz Realty can help buyers compare Sandcastle II residences by bedroom configuration, living area, unit position, floor height, Gulf and beach view, balcony, parking, storage, renovation, hurricane protection, rental provisions, association financials and relevant same-building sales before arranging private tours.
Contact Schulz Realty for Sandcastle II Listings & Private Tours
Call David Schulz at (239) 682-5800.
Sandcastle II residence sizes, floor plans, views, balcony configurations, parking and storage rights, association fees, reserve funding, insurance coverage, deductibles, assessments, structural and capital projects, amenities, rental provisions, pet policies and individual residence features may vary or change. Buyers should verify material information through current Sandcastle II condominium documents, association financial statements, applicable structural and reserve reports, insurance information, inspections, public records, title work and appropriate qualified professionals before purchasing.
Back to Top ↑
The data relating to real estate for sale on this web site comes in part from the Broker Reciprocity Program (BR Program) of M.L.S. of Naples, Inc. Properties listed with brokerage firms other than this company are marked with the BR Program Icon or the BR House Icon and detailed information about them includes the name of the listing brokers. The properties displayed may not be all the properties available through the BR Program. The information provided is for consumers’ personal, non-commercial use and may not be used for any other purpose.