Sea Isle Ext 21 Homes for Sale

Sea Isle Ext 21 Homes for Sale

Welcome to Sea Isle Ext 21, a hidden gem nestled in the vibrant city of Galveston, Texas. This charming subdivision offers a unique blend of coastal living and suburban comfort, making it an ideal destination for families, retirees, and anyone seeking a serene lifestyle by the sea.

Situated in Galveston County, Sea Isle Ext 21 is just a stone's throw away from the beautiful Gulf of Mexico. Residents enjoy easy access to sandy beaches, where sunbathing, swimming, and beachcombing are just part of everyday life. The area is also home to a variety of parks and recreational facilities, perfect for outdoor enthusiasts and families looking to enjoy quality time together.

The homes for sale in Sea Isle Ext 21 showcase a diverse range of architectural styles, from cozy beach cottages to modern family residences. Many of these properties come with stunning water views, spacious yards, and easy access to local amenities. Whether you’re searching for a seasonal retreat or a permanent residence, you'll find a home that fits your lifestyle and budget here.

In addition to the breathtaking natural surroundings, Sea Isle Ext 21 is conveniently located near shopping, dining, and entertainment options. The vibrant culture of Galveston is just a short drive away, offering a rich tapestry of history, art, and culinary delights.

Discover the charm of Sea Isle Ext 21, where coastal living meets community spirit. Explore the available homes for sale and find your perfect slice of paradise in Galveston today!

Newest Sea Isle Ext 21 Homes for Sale

$614,000
3 Beds ⋅ 2 Baths ⋅ 19646276 MLS ⋅ ACTIVE Status
Just steps from the beach, this coastal retreat offers the perfect blend of comfort, style, and island living. Soaring ceilings and an open-concept floor plan create a bright, airy atmosphere, while walls of windows fill the home with natural light and capture beautiful beach views. The primary suite has direct access to the south-facing deck and a private en-suite bathroom. Two guest bedrooms provide plenty of space for family and friends. The expansive south-facing deck is the perfect place to enjoy the beach views. Downstairs, the covered area offers space for hosting, complete with an outdoor shower. Whether you're looking for a full-time residence or an investment property, this gem offers the ideal opportunity to experience the best of coastal living. HOA amenities include a pool, pickleball court, park, etc.! Looking for an investment bundle? Seller willing to entertain a package offer with one or more of the following other properties - MLS #18186468, MLS #5134539!

21423 Gulf Dr, Galveston
$1,279,000
5 Beds ⋅ 4 Baths ⋅ 2835101 MLS ⋅ ACTIVE Status
LOCATION, LOCATION, LOCATION! Enjoy the sound of the waves at this BEACH FRONT home in the highly sought-after SEA ISLE neighborhood. Take in unobstructed Gulf views and step directly onto the beach just outside your door. Sea Isle offers fantastic amenities, including a marina with store and full-service restaurant. This well-maintained home has been a successful vacation rental for the past 10 years with many returning guests. Featuring two spacious living areas and a primary suite conveniently located on the first floor, the home conveys fully furnished and turnkey. Whether you're looking for a personal retreat, an investment property or both, this coastal beauty is ready to enjoy!

21326 Gulf Dr, Galveston
$525,000
3 Beds ⋅ 2 Baths ⋅ 56386916 MLS ⋅ ACTIVE Status
Coastal Retreat in Sea Isle, Galveston – Turnkey & Income-Producing. Welcome to this beautifully updated and fully furnished beach home located in the desirable Sea Isle community of Galveston. Situated on the second row from the beach, the property offers refreshing Gulf breezes and easy beach access just a 1-minute walk away, without the congestion of beachfront traffic. A full interior renovation was completed in 2024, featuring updated appliances, renovated bathrooms, and a bright, open layout designed for comfortable coastal living. New exterior paint completed in 2025 enhances curb appeal and gives the home a clean, modern look. A new Trane XR14 air conditioner was installed in 2022 and includes a 10-year warranty. The home is being sold fully furnished, making it a true turnkey opportunity. Located in a quiet neighborhood with a peaceful, uncrowded beach, this property has been a successful short-term rental. Ideal as a primary residence, or income-producing investment.

21319 Gulf Dr, Galveston
$665,000
3 Beds ⋅ 3 Baths ⋅ 62750371 MLS ⋅ ACTIVE Status
Just steps from the Gulf, this coastal beach house offers incredible Gulf and Bay views, along with the relaxed lifestyle Sea Isle is known for. Vaulted cedar ceilings and floors add warmth and character, while walls of windows with storm shutters capture coastal waves, sunsets, and breezes. The open living area is bright and inviting—perfect for entertaining after a day at the beach. The home features three bedrooms and two baths, with two bedrooms on the main level and a private primary suite upstairs with access to its own deck. Multiple decks provide exceptional outdoor living and entertaining space. Recent updates include a new roof, new exterior paint, and updated decks, offering peace of mind and fresh coastal appeal. Sea Isle amenities include beach access, marina, private fishing pier, park, boat launch, bait camp, West End Marina, and pickleball/tennis courts. Ideal as a weekend retreat, vacation rental, or full-time coastal home—this is island living at its best.

21417 Gulf Dr, Galveston
$595,000
4 Beds ⋅ 2 Baths ⋅ 68413094 MLS ⋅ ACTIVE Status
GORGEOUS remodeled 2nd row Beach House!. This 4 bed/2 bath retreat has breathtaking beach views & beach walkway access. Updated & meticulously maintained, this property offers an open, airy, & bright atmosphere beginning with the spacious living area, flooded with natural light & adorned with large windows that perfectly frame the picturesque beach. The modern kitchen features sleek countertops, SS appliances, & ample storage space. Four bedrooms provide comfort & privacy for you and your guests. Wake up to the soothing sound of the waves and soak in the Gulf views from the Primary Suite. Or, enjoy the coastal breeze from your spacious Azek decking and HOT TUB. Whether you're barbequing or sipping your morning coffee, this outdoor oasis is the perfect place to create lasting memories. This property comes fully furnished with few exclusions and has LOW flood insurance. Roof and HVAC replaced in 2024. Make this your weekend home, vacation rental, or full-time Galveston retreat!

21321 Gulf Dr, Galveston
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