Sarasota Home Additions
Lakewood Ranch | Venice | Nokomis | Osprey
Expand Your Space Without Leaving the Home You Love
You’ve built something meaningful—and now you need more space to match it. At Sennes Design Build, we help you expand with intention, transforming your home into a refined, coastal retreat that supports the way you live today and tomorrow.
Space That Elevates Your Everyday
Expanding your home should feel exciting. That’s why we handle every step—from design through construction—with precision, care, and a seamless experience. With Sennes, you can count on:
A unified team and clear, open communication
Thoughtful planning that keeps your budget on track
Efficient timelines and dependable progress
Results that reflect your vision down to the last detail
Continued support, long after the final walkthrough
Sarasota HOME ADDITIONS
Sarasota Home Extensions
Extend your home’s footprint with thoughtfully designed space—whether it’s a larger kitchen, new living area, guest suite, or expanded entryway.
Sarasota Sunrooms
Bring the outdoors in with a custom sunroom addition that captures natural light and coastal views while remaining comfortable year-round.
Sarasota Garage Conversions
Transform your existing garage into functional living space—perfect for a guest suite, home office, studio, or income-producing rental unit.
Sarasota Attic Renovations
If your home includes an attic with usable height and structure, finishing it can add a private bedroom, office, or quiet retreat above it all.
Sarasota In-Law Suites
Create a private, fully equipped living space for parents or extended family with a custom in-law suite that supports comfort and independence.
Remodel with Confidence—We’ll Handle the Details
At Sennes Design Build, we manage every step of your home transformation so you can focus on enjoying the space you’ve always envisioned without the stress.
Our Remodeling Process
✓ Initial meeting to discuss project goals and requirements
✓ Pre-construction and design
✓ Development and planning
✓ Construction, project management, and quality assurance
✓ Project completion and walkthrough
★★★★★
“Their design abilities far exceeded our expectations!
We hired Sennes to add a 1/2 bath within the existing footprint of our home. They opened up our floorplan and created a brighter, much more open area than we could have ever anticipated. We found the team to be professional and always available for a call, text, or even a visit when we had ideas or questions. They also went above and beyond to find an exact match for our existing tile to ensure the new bath looked like it had always been there. We appreciate Sennes’ time and commitment to our project—thank you!”
— Dawn and Ken
Service Areas
Sennes Design Build proudly serves Sarasota, Venice, and surrounding Gulf Coast communities with full-service design-build and remodeling expertise.
We work in a variety of neighborhoods, from coastal homes to established inland communities. Browse the list below to see some of the areas we frequently serve.
Don’t see your location? Reach out—we’re happy to discuss your project.
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Manasota Key is a hidden gem with pristine beaches and a laid-back island vibe. We specialize in remodeling homes here to maximize Gulf views, enhance durability, and create timeless interiors that reflect the natural beauty of the surroundings.
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Boca Grande is exclusive and serene, known for its historic charm and upscale appeal. Sennes Design Build delivers high-end renovations that respect the island’s refined aesthetic while modernizing for today's coastal living.
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Englewood and its neighboring communities—Rotonda West, Placida, Plantation, Cape Haze, and Grove City—offer a relaxed, boating-friendly lifestyle. We bring expert craftsmanship and thoughtful design to remodels that elevate comfort and embrace Florida’s indoor-outdoor living.
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Longboat Key exudes coastal sophistication with its luxurious homes and quiet beachfronts. Our remodels here focus on clean lines, custom details, and high-end finishes that complement the island’s serene elegance.
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Lido Key, and especially the modernist enclave of Lido Shores, is known for its architectural pedigree and beachside allure. We specialize in design-forward remodels that elevate these unique homes while respecting their original vision and context.
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Osprey is a peaceful, upscale community with neighborhoods like Laurel and Vamo offering both charm and access to the water. Sennes Design Build enhances homes here with custom remodels that reflect the area's coastal tranquility and natural beauty.
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Casey Key is one of the most prestigious barrier islands on Florida’s west coast, known for its luxury estates and unmatched Gulf views. We deliver exquisite remodels that meet the highest standards, tailored to the exclusivity and elegance of the island.
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Bird Key offers luxury waterfront living just minutes from downtown Sarasota. We create high-end remodels that match the prestige of this private island, balancing bold design with everyday comfort and breathtaking water views.
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Lakewood Ranch is a vibrant, master-planned community known for its upscale amenities and family-friendly neighborhoods. Just next door, Bradenton and Bayshore Gardens offer a mix of established homes and waterfront charm. Sennes Design Build brings thoughtful remodels to this growing region, blending sophistication with everyday comfort.
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Anna Maria Island is known for its quiet charm, old Florida feel, and breathtaking Gulf views. In Holmes Beach, Bradenton Beach, Cortez, and San Remo, homes reflect a coastal lifestyle that balances laid-back living with elegance. We specialize in remodels that honor the area’s character while bringing modern luxury to every detail.
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Sarasota is a cultural gem on the Gulf Coast, from the historic homes of Hudson Bayou and Harbor Acres to the vibrant downtown and peaceful retreats of Myakka City and Desoto Lakes. Whether it’s a mid-century in Arlington Park or a coastal estate in Cherokee Park or Oyster Bay, Sennes Design Build crafts stunning remodels tailored to each neighborhood's distinct style.
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Siesta Key is famous for its powder-soft quartz sand and relaxed, tropical lifestyle. We remodel homes here with a focus on indoor-outdoor living, elevated finishes, and coastal durability—perfectly suited for the island’s beachside ambiance.
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Venice offers a charming mix of Mediterranean-style architecture and laid-back coastal living. From classic homes on Venice Island to newer builds in North and South Venice, Sennes Design Build enhances properties to reflect the area’s elegance and easygoing pace.
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North Port and neighboring Port Charlotte and Charlotte Harbor are known for their natural beauty and more spacious homesites. We help homeowners transform their properties with smart, stylish remodels that make the most of the peaceful surroundings and growing local appeal.
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Nokomis is a quiet coastal town with a mix of old Florida charm and newer developments. We remodel everything from beachfront cottages to family homes, bringing comfort, function, and a touch of luxury to every project.
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Punta Gorda blends historic charm with waterfront sophistication. Whether restoring a classic home or updating a canal-front property, Sennes Design Build creates refined remodels that fit seamlessly into the area’s relaxed, elegant lifestyle.
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Sarasota remodeling investment guide
Get pricing for the most popular projects in your area
Detailed remodeling investment guide for popular remodeling services in Sarasota and surrounding areas.
HOME Additions FAQ
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A home addition in Sarasota, Lakewood Ranch, Nokomis, or nearby will likely cost between $150,000 and $300,000. Download our Remodeling Investment Guide to learn more about costs and pricing for your home addition. Also, remember the cost of a home addition in these areas depends on factors like size, design complexity, materials, and whether structural or utility changes are needed. During our consultation, we’ll help you explore options and provide a clear, tailored estimate.
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Timelines vary based on the scope of the addition and permitting requirements. Most additions take several weeks to a few months from design to completion. We’ll give you a detailed timeline during the planning phase so you know exactly what to expect.
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Start by defining your goals—what space you need and how you plan to use it. Then, connect with our team at Sennes Design Build for an expert evaluation of your home, zoning considerations, and design possibilities.
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Common additions in the Sarasota area include expanded living rooms, primary suites, guest spaces, home offices, and second-story builds. We also design additions for outdoor living areas and in-law suites.
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We manage your entire project—from design to construction—with precision, creativity, and professionalism. Our Sarasota-based team brings experience, integrity, and a client-first approach to every addition we build.
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It depends on your goals, your lot, and your budget. For many Sarasota homeowners, a well-designed addition is a smart way to get more space without moving. We can help you weigh your options and choose the right path.
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Yes—when done thoughtfully, a home addition can add significant value, functionality, and long-term comfort. Whether you’re expanding for family needs or resale appeal, it’s an investment that often pays off.
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Skipping the design phase, hiring separate contractors, or failing to account for future needs can lead to costly issues. With Sennes, you’ll get a cohesive design-build process that keeps your goals, budget, and timeline aligned from start to finish.
