Siena Sec 21 Homes for Sale

Welcome to Siena Section 21, a picturesque subdivision nestled in the heart of Round Rock, Texas, within the vibrant Williamson County. This charming community is designed for those who appreciate a blend of modern living and natural beauty. With its lush landscapes, winding trails, and family-friendly atmosphere, Siena offers a serene escape while still being conveniently close to the bustling amenities of the city.

The homes for sale in Siena Section 21 are a true reflection of contemporary craftsmanship, featuring a variety of architectural styles that cater to diverse tastes. From spacious single-family homes to cozy retreats, each property is thoughtfully designed to provide comfort and functionality. You'll find open floor plans, gourmet kitchens, and inviting outdoor spaces perfect for entertaining or relaxing with loved ones.

Residents of Siena Section 21 enjoy access to a wealth of community amenities, including sparkling swimming pools, playgrounds, and scenic parks, making it an ideal setting for families and individuals alike. The community fosters a strong sense of camaraderie with regular events and gatherings that bring neighbors together, creating lasting friendships and cherished memories.

Located just a short drive from major highways, Siena Section 21 offers easy access to Round Rock’s vibrant shopping, dining, and entertainment options, as well as top-rated schools. Whether you’re a first-time homebuyer or looking to upgrade, the homes for sale in this delightful subdivision present an opportunity to embrace a lifestyle of comfort and convenience in one of Texas’s most sought-after areas. Discover your dream home in Siena today!

Newest Siena Sec 21 Homes for Sale

$495,000

4 Beds ⋅ 4 Baths ⋅ 3343693 MLS

Exceptional 3,164 sq ft single-family home built by CastleRock Communities in 2015, priced aggressively for a swift sale in Round Rock’s premier Siena subdivision and packed with high-value mechanical and outdoor upgrades. INTERIOR HIGHLIGHTS: 4 large bedrooms, 3.5 pristine baths, formal dining, and a private office space. Soaring high ceilings and a striking spiral staircase deliver immediate wow-factor upon entry. CHEF'S KITCHEN: Equipped with quartz/granite counters, beautiful cabinetry, and a seamless open flow into the primary living area. MECHANICAL UPGRADE: Offers ultimate peace of mind with a premium Carrier upstairs AC unit newly replaced and upgraded in July 2026 for optimal energy efficiency. UPSTAIRS LIVING: Features an open secondary living space/game room plus an additional closed media room perfect for movie nights. No carpet in common areas (hardwood and tile throughout). OUTDOOR OASIS: Giant tiled patio area with a custom outdoor gas line hookup. The massive backyard showcases established peach, pear, and cherry plum fruit trees lined beautifully along the fence, preserving an expansive open lawn perfect for play or a future pool. FINANCIAL & COMMUNITY PERKS: Enjoy an incredibly low monthly HOA of just $25 while retaining full access to Siena's resort-style Olympic pools, splash pads, parks, and trails. Highly competitive pricing for this square footage combined with major high-ticket upgrades makes this meticulously maintained, owner-occupied home the standout value in Siena. Schedule your tour today!

5851 Parma St, Round Rock

$400,000

4 Beds ⋅ 2 Baths ⋅ 2804282 MLS

Well-maintained single-story home situated on a spacious corner lot in the desirable Siena community. Open, functional floor plan. Engineered hardwood flooring extends through the main living areas, . The kitchen features granite countertops, 42-inch cabinetry, stainless steel appliances, a gas range with griddle, built-in microwave, designer backsplash, and an open connection to the living and dining areas. The spacious primary suite includes a garden tub, oversized separate shower with bench seating, dual vanities, walk-in closet, and ceiling fan. Architectural details include a dramatic tiered cathedral ceiling in the formal dining room and 2-inch faux wood blinds throughout. Outside, enjoy a covered patio, privacy fence, sprinkler system back yard. Community amenities include a pool, parks, playgrounds, sports courts, and walking trails. Furniture and appliances are negotiable. Move-in ready and thoughtfully cared for!

8258 Arezzo Dr, Round Rock

$440,000

4 Beds ⋅ 4 Baths ⋅ 4674763 MLS

Welcome to 6017 Roma Street, located in desirable Siena! This inviting home offers a functional layout, thoughtful features, and a backyard that provides privacy and space. Start your day enjoying coffee on the welcoming covered front patio, with a storm door that fills the entry with natural light. Inside, the spacious entry is ideal for a drop zone, entry table, or organized place for keys and bags. A separate dining room offers flexibility for formal meals, entertaining, or a home office. The light-filled living room features neutral paint, dark flooring, abundant windows, and a cozy fireplace with stone surround and mantle. The open-concept design flows seamlessly into the kitchen, where the center island provides a convenient place for casual dining and gathering, along with a dedicated breakfast area. The main-level primary suite features double vanities, a soaking tub, and a walk-in closet. A conveniently located laundry room completes the first floor. Upstairs, you’ll find three additional bedrooms, including one with its own private bathroom—an ideal setup for guests, teens, or extended family. The oversized game room provides plenty of room for entertaining and is large enough to accommodate a pool table. Step outside to enjoy the covered back patio and oversized backyard, complete with a mature tree and room to relax, play, or entertain. Best of all, the property backs to green space, offering a peaceful setting with no rear neighbors. Recent updates include a new HVAC system installed in August 2026, replaced back fence in 2025, and recently added rain gutters. Siena residents enjoy community amenities including two swimming pools with covered pavilions, three playgrounds, soccer fields, two basketball courts, and a hike-and-bike path. With its spacious layout, flexible living spaces, desirable green-space location, and recent updates, 6017 Roma Street is ready to welcome you!

6017 Roma St, Round Rock

$499,990

5 Beds ⋅ 5 Baths ⋅ 5288419 MLS

Welcome to 5835 Parma Street, a stunning two story home designed with both elegance and everyday living in mind. Upon entry, you are greeted by a beautiful foyer featuring a striking staircase and a welcoming sense of space. Continue through the home to the impressive living area showcasing soaring ceilings, abundant natural light, and a beautiful fireplace that creates the perfect focal point for gathering with family and friends. The open concept kitchen overlooks the living space and features stainless steel appliances, a breakfast bar perfect for casual meals and morning coffee, and ample workspace for everyday cooking. The dedicated dining area off the kitchen provides an inviting setting for hosting holiday gatherings, dinner parties, or entertaining guests. The private primary suite is conveniently located downstairs and offers a spacious retreat complete with an ensuite bathroom featuring two separate vanity areas, a corner soaking tub, a separate glass enclosed walk in shower, and a generous walk in closet. Upstairs, enjoy additional living space with a versatile media room perfect for movie nights, game days, or relaxing evenings at home. Step outside to the covered patio, where indoor and outdoor living blend seamlessly with the perfect setting for al fresco dining, weekend gatherings, and creating lasting memories with family and friends. Ideally positioned with convenient access to Highway 79 and Toll 130, this home offers an effortless commute while providing easy access to nearby elementary and middle schools. Enjoy a vibrant lifestyle surrounded by endless dining, shopping, and entertainment options, including the excitement of Kalahari Resorts, Dell Diamond, and the expansive amenities of Old Settlers Park. Schedule your showing today and discover the exceptional comfort, convenience, and lifestyle awaiting you at 5835 Parma Street.

5835 Parma St, Round Rock

$299,000

3 Beds ⋅ 2 Baths ⋅ 3755362 MLS

Brand New Carpet Installed Sept. 2026. Well maintained and move-in ready, this inviting home in the sought-after Siena community offers an open-concept layout designed for comfortable everyday living and effortless entertaining. The spacious kitchen features granite countertops, a gas range, ample cabinetry, a pantry, and overlooks the living and dining areas. The private primary suite provides a relaxing retreat with dual vanities, a walk-in closet, and a soaking tub. Enjoy extended covered front and back porches, perfect for morning coffee, outdoor dining, or simply relaxing, along with a beautifully landscaped backyard featuring mature trees and an automatic sprinkler system. Easy access to 35, 79, and 130, shopping, dining, parks, and community amenities, this home offers the perfect blend of comfort, style, and convenience.

5929 Parma St, Round Rock

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Listings provided by North Texas Real Estate Information Systems (NTREIS). Listing data has been deemed reliable but is not guaranteed to be accurate by the MLS.

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