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318 Sandcastle Lane, St Simons Island, GA 31522

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For Sale

$1,080,000

4 beds • 3 baths • 3,133 sqft

Estimated Payment

$ 5,610 /mo. †

6.76% APR for 30 yrs.
$0 in taxes
Change Loan Terms

  • Single Family Detached
    Property type

  • $344.72
    Price per square foot

  • 31-40 Years Old
    Age

Explore this Property

Fully remodeled home with MOTHER-IN-LAW-SUITE offers the ultimate golf cart living experience on the prestigious south end of St. Simons Island, GA. Enjoy easy access to the island's most popular points of interest: the Pier Village, beaches, restaurants, shopping, arts & craft festivals, as well as the island s highest rated schools. This property currently generates an average of $24,000/year in rental income for the downstairs guest suite with private entrance. This home has great investment potential while also being ideal as a family home or primary residence. Located in a quiet family-friendly neighborhood, with nearby parks and excellent schools, this home is suitable for families looking to create lasting memories. This one-of-a-kind home provides an opportunity to enjoy the best of both worlds- live in a peaceful setting while being just minutes away from the beach and vibrant island activities. Opportunity abounds with this rare home with 3 separate spaces-all with their own private entrances. Here are some fantastic features that make this property truly unique: MOTHER-IN-LAW SUITE - Guest House - Separate Living Quarters - AirBnB: This space generates a substantial $24,000/year in long term rental income! The stylish 1-bedroom, 1-bath guest suite is your own private oasis where guests can unwind in the spacious living area and enjoy numerous amenities. Complete with its own private entrance, guests can relax in the charming private courtyard with its own refreshing outdoor shower, perfect for rinsing off after a day of fun in the sun. Exercise Room - Gym - Office Space - Creative Studio - Flex Space: Explore the opportunities of this distinct 3rd section of this house. This room has its own private entrance- You ll see endless possibilities to turn this flex space into a business or recreational area for your enjoyment. Vaulted Ceilings: The entryway/living area and exterior covered porch both feature vaulted ceilings, creating a sense of grandeur. High-End Finishes, Modern Electrical and Lighting: Quartz countertops, custom cabinetry and custom built in closets are throughout the home, recessed lighting and dimmers throughout, under cabinet lighting in the kitchen as well as a chandelier fan/light combo, crystal pendant lights in the dining area, and the primary bedroom closet features a modern crystal chandelier for added indulgence. Luxurious Bathrooms: Walk-in showers showcase upgraded fixtures with adjustable handheld showerheads, and additional functionality was considered with installed timers for all bathroom fans. Spa-Chic Primary Bathroom: This bathroom features an elegant Hydro Systems Metro Collection freestanding bathtub with dual water feature, and oversized walk-in shower complete with triple shower heads for a spa like experience. The highlight of this large shower is the large overhead rainfall shower. Custom Built-ins: Custom built in shelving is throughout the home in all closets and kitchen pantry, and brand-new custom cabinets throughout. Fireplaces: Enjoy both indoor and outdoor electric fireplaces for ambiance. The main living area is highlighted by the latest electric fireplace technology- Touchstone smart-home electric fireplace with remote control and voice command compatible. Outdoor Living Spaces: There are 2 exterior living spaces for entertainment and outdoor living. The grand addition to this home is a very large distinctive covered deck, complete with custom woodwork, an electric fireplace, oversized ceiling fan, & privacy curtains. Below this grand addition is the 2nd outdoor living space located within the large private courtyard of the guest suite, which features an outdoor shower. Additionally, this home has a fenced in backyard with privacy fencing all around. Income Potential: The separate mother-in-law suite/AirBnB generates a substantial $24,000 in long term rental income. Located in X Flood zone, voluntary HOA. Please navigate our 3D Virtual Tour of this home.
MLS# 1651619

Courtesy Of The Shell Agency, LLC

(912) 269-3635

Property Features

  • Age
    31-40 Years Old
  • Architecture Style
    Other
  • Lot Size
    0.16 Acres

Map and Directions

Directions to 318 Sandcastle Lane, St Simons Island, GA 31522

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Mortgage Calculator

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Monthly Payment Breakdown

  • Principle and Interest
    $5,610
  • Property Taxes
    $0
  • Hazard Insurance
    $0
  • Private Mortgage Insurance
    $0
  • HOA Dues
    $0
  • Total Monthly Payment:
    $5,610

Calculators provided for estimating purposes only. Consult with your lender to determine precise payment requirements.

Schools

St. Simons Elementary School

Grades PK-5 Public School

Saint Simons Island, GA 31522 0.8 miles
805 ocean blvd

521 total students
14:1 Student teacher ratio

School Rating: A-

School Details
Other Nearby Schools Distance Type Grades School Rating
Frederica Academy 1.5 miles Private PK-12
St Simons Christian School 2.8 miles Private PK-8
Oglethorpe Point Elementary School 5 miles Public PK-5 A-
Goodyear Elementary School 5.3 miles Public KG-5 D-

Frederica Academy

Distance: 1.5 miles

Type Private

Grades: PK-12

St Simons Christian School

Distance: 2.8 miles

Type Private

Grades: PK-8

Oglethorpe Point Elementary School

Distance: 5 miles

Type Public

Grades: PK-5

A-

Goodyear Elementary School

Distance: 5.3 miles

Type Public

Grades: KG-5

D-

School information does not guarantee enrollment. School service boundaries are provided as a reference only, may change, and are not guaranteed to be accurate. Contact the school district directly to verify school enrollment eligibility.

Local area information for St Simons Island, GA 31522

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St Simons Island, GA 31522

This community’s employment is highest in the food and administrative support industries. The area’s overall household expenses are above the national average.

90° July
Hottest Average Month
43° January
Coldest Average Month
8,079 Total Households in Area
2.1% Increase in population since the year 2010
16.1%
of households
have children
17 minutes
Median Commute Time

Household Expenses vs National Average

This location’s average annual expenditures by category compared to the national average. Index score (100=National Average)

Demographic facts
for St Simons Island, GA 31522

St Simons Island, GA 31522 has a population of 17,195 people in 8,079 households with a median age of 56.9 years old.

2.1%
Increase in population
since the year 2010
Population is Trending up
7,844
Total households as of 2010
3.6%
projected percent change in total
households in 5 years

Community Population By Age

The median age for this area is 56.9 years old. The smallest percentage group is 65-74 years and the largest percentage is the 18-24 years age range.

Community Population By Ethnicity

White 91%
Hispanic 3%
Black 3%
Other 1%
Asian <1%
Native American <1%
The most prevalent ethnicity is White at 91%, followed by Hispanic at 3%, Black at 3%, and Other at 1%.

Economics
for St Simons Island, GA 31522

230 /sq mi
Population Density
$100,778 /yr
Median Household Income
$730,000
Median Sales Price
17 min
Median Commute Time

Household Expenses vs National Average

This location’s average annual expenditures by category compared to the national average. Index score (100=National Average)

Household by Income

Out of the households in this area, the largest income group is $50-74,999k representing 16.83% of the households.

Transportation to Work

  • Drive 84%
  • Work from Home 13%
  • Walk or Bike 4%
  • Public Transit 0%

Occupancy by Type

Owned 6,885 59%
Vacant 3,517 30%
Rented 1,195 10%

White vs Blue Collar Jobs







White Collar 88%
Blue Collar 12%

Family & Education Facts
for St Simons Island, GA 31522

56.9 Median Age

Average Household Size

2.1
persons per
household

62.7%

Married Households

Community Population By Education

Bachelors Degree 33%
Graduate Degree 21%
High School Graduate 17%
Some College 17%
Associates Degree 9%
Some High School 3%
Of the total people surveyed, the most prevalent educational attainment level is Bachelors Degree, representing 33.26% of the population.

Household Family Expenses vs National Average

This location’s average annual expenditures compared to the national average. Index score (100=National Average)
16.2% of households have children

Weather
for St Simons Island, GA 31522

The weather for this area ranges from a high of 90° F in July to a low of 43° F in January

90° July
Hottest Average Month
43° January
Coldest Average Month

Average Temperature by Month

Low (°F)
High (°F)
Jan
43°
62°
Feb
45°
64°
Mar
51°
70°
Apr
57°
77°
May
65°
83°
Jun
71°
88°
Jul
74°
90°
Aug
73°
89°
Sep
71°
85°
Oct
62°
78°
Nov
52°
71°
Dec
45°
63°

Average Temperature in Degrees Fahrenheit

Precipitation

Precipitation (inch)

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Copyright © 2025 Golden Isles Association of REALTORS. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified. Information being provided is for consumers' personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Information being provided is for consumers' personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.

Data powered by Attom Data Solutions. Copyright© 2025. Information deemed reliable but not guaranteed.

This information is provided for general informational purposes only and should not be relied on in making any home-buying decisions. School information does not guarantee enrollment. Contact a local real estate professional or the school district(s) for current information on schools. This information is not intended for use in determining a person's eligibility to attend a school or to use or benefit from other city, town or local services.

† Based on a 30-year fixed rate of 3.38% with 20% down. The estimated payment is offered for convenience and is not an offer of credit. Due to market fluctuations, interest rates are subject to change at any time and without notice. Interest rates are also subject to credit and property approval based on secondary market guidelines. The rates shown are based on average rates for our best qualified customers. Your individual rate may vary. Rates may differ for FHA, VA or jumbo loans.

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