This 4,621 square foot coastal contemporary house plan offers a spacious layout with strong indoor-outdoor living, private bedroom suites, and an upstairs recreation room with a covered balcony. The home includes 5 bedrooms, 5 full bathrooms, 3 half bathrooms, a 3-car attached garage, a large covered lanai, an outdoor kitchen, an outdoor fireplace, and a second-floor rec room that adds flexible living space above the main level.
The design is especially appealing for homeowners who want the comfort of mostly one-level living with the added benefit of a private upper-level retreat. The first floor provides 4,041 square feet of heated living space, while the second floor adds 580 square feet. This makes the home feel like a generous single-level residence for daily routines, while still offering a separate upstairs area for recreation, guests, hobbies, or quiet relaxation.
With 81 feet of width and 102 feet 10 inches of depth, this plan is designed for a lot that can support a substantial footprint and meaningful outdoor space. The 990 square foot lanai is one of the home’s strongest lifestyle features, giving the rear of the home a resort-like gathering area that works well for warm climates, coastal settings, and homeowners who enjoy entertaining outside.
The overall design blends coastal contemporary, Florida-style, and transitional architecture. Large openings, clean exterior lines, a balanced footprint, and generous outdoor living spaces give the home a polished modern feel while still keeping it comfortable for family life.
Exterior Curb Appeal
The exterior of this coastal contemporary home has a clean, upscale presence that fits well in warm-weather communities, coastal neighborhoods, and modern suburban settings. The architecture is refined rather than overly ornate, using proportion, roof shape, windows, and entry composition to create its first impression.
The home has a low, broad profile with a maximum ridge height of 29 feet 4 inches. This keeps the design grounded while allowing enough height for the second-floor rec room and balcony. The roof uses a 5 on 12 primary pitch, which supports the contemporary coastal look without making the home appear too steep or traditional.
The garage arrangement is an important part of the curb appeal. A 2-car garage sits on the left side and a 1-car garage sits on the right side. Both use a courtyard-entry configuration, combining for 1,004 square feet of garage space. This layout helps create a defined arrival court while keeping the garage visually balanced across the front of the home.
The split garage arrangement can also make the exterior feel more custom. Rather than one large garage mass dominating the front, the parking areas are separated into two zones. This gives the home a wider and more architectural appearance from the street.
Depending on the final finish selections, the exterior could work well with smooth stucco, light coastal colors, stone accents, wood-look details, dark window frames, or clean transitional trim. The design is flexible enough to feel relaxed near the water or more polished in a luxury residential neighborhood.
Porch Outdoor Living
Outdoor living is one of the defining features of this home. The plan includes a 990 square foot lanai, creating a large covered outdoor area for dining, lounging, cooking, and gathering. This is not a small back porch; it is a major living zone that extends the home into the backyard.
The lanai includes an outdoor fireplace, which gives the space a comfortable focal point. Even in mild climates, a fireplace can make the outdoor area feel more inviting during cooler evenings. It also creates a natural place for seating and conversation.
The outdoor kitchen adds another layer of function. Homeowners can grill, serve meals, and entertain outside without relying only on the indoor kitchen. This feature is especially useful for family gatherings, weekend cookouts, poolside meals, or casual evenings with guests.
The second-floor balcony or veranda adds 171 square feet of covered outdoor space connected to the upstairs recreation room. This gives the upper level its own outdoor retreat, which can be used for morning coffee, reading, relaxing, or enjoying backyard views.
Together, the lanai and balcony make the home feel strongly connected to the outdoors. This is a key advantage for coastal contemporary and Florida-style living, where covered shade, outdoor cooking, and comfortable exterior gathering spaces are often central to the way homeowners use the house.
2D Floor Plan Interior Layout
The 2D floor plan is arranged to provide mostly one-level living with a compact second-floor recreation area. The main level contains 4,041 square feet and includes the primary living areas, kitchen, dining spaces, bedroom suites, laundry, garage access, and lanai connection. The second floor adds 580 square feet and is dedicated to the rec room and balcony, giving the home a flexible space away from the main floor.
The central portion of the main level is designed for open living. The great room, kitchen, dining areas, and outdoor lanai work together to create a large social zone. This arrangement is practical for families because it keeps the most-used spaces close together, while also supporting larger gatherings.
The kitchen is positioned to serve both indoor and outdoor entertaining. Its relationship to the great room, breakfast nook, formal dining area, and lanai allows the cook to stay connected to the activity of the home. This is especially useful in a plan with such a large outdoor living area.
The floor plan includes both a breakfast nook and a formal dining room. This gives the home flexibility for everyday meals and more formal occasions. The breakfast nook can serve casual family dining, while the formal dining room works well for holidays, dinner parties, and larger sit-down meals.
The bedroom layout is split for privacy. The first-floor master suite is separated from the secondary bedrooms and includes a sitting area, giving the owner’s retreat more comfort and purpose. Secondary bedrooms can serve children, guests, or extended family while maintaining a sense of independence.
The main-level laundry room supports daily convenience because most of the home’s living spaces are on the first floor. The attached garages provide practical vehicle storage and create separate parking zones on both sides of the front courtyard.
The second-floor rec room is one of the most flexible features in the home. Because it sits apart from the main living spaces, it can be used as a game room, media room, teen lounge, hobby room, guest retreat, exercise space, or quiet secondary living area. Its covered balcony makes it feel more complete and gives it a strong lifestyle advantage.
Kitchen Dining Living
The kitchen is designed to support a large household and frequent entertaining. Its placement near the great room, breakfast nook, formal dining area, and outdoor lanai makes it the working center of the home. This type of arrangement allows meals, conversation, and hosting to happen naturally across several connected spaces.
The breakfast nook gives homeowners a comfortable everyday dining spot. It is ideal for casual meals, morning coffee, homework, or quick lunches. Because it is near the kitchen, it keeps daily dining convenient without requiring the formal dining room to be used for every meal.
The formal dining room adds a more traditional entertaining option. In a large home with 5 bedrooms and extensive outdoor living, a dedicated dining room can be very useful for holidays, celebrations, and sit-down dinners. It gives the house a polished hosting space while still allowing the open living areas to feel relaxed.
The great room serves as the main interior gathering space. Its connection to the kitchen and outdoor lanai helps the home feel open and social. Family members can relax indoors while still staying connected to activity outside, which is especially valuable during gatherings.
The wet bar adds another entertaining feature. It can be used for beverages, glassware, coffee service, or snacks, reducing traffic through the main kitchen during parties. In a home with a large lanai and second-floor rec room, the wet bar helps support multiple gathering zones.
The upper-level rec room expands the living options even further. It can be a more casual area for games, movies, or hobbies, while the main great room remains available for everyday living and conversation. This separation makes the home easier to use when different members of the household want different activities at the same time.
Bedrooms Bathrooms
This house plan includes 5 bedrooms, 5 full bathrooms, and 3 half bathrooms. That generous bathroom count gives the home a high level of comfort for residents and guests. It also supports entertaining well because visitors do not need to enter private bedroom areas to access a bathroom.
The master suite is located on the first floor and includes a sitting area. This makes the owner’s suite feel more like a private retreat than a simple bedroom. The sitting area can be used for reading, relaxing, morning coffee, or quiet conversation at the end of the day.
A first-floor master suite is a major advantage for long-term living. Homeowners can keep their daily routine on the main level while still enjoying the extra flexibility of the upstairs rec room. This arrangement is especially appealing for people who want a large home without needing to use stairs every day.
The split-bedroom layout improves privacy. Secondary bedrooms are separated from the owner’s suite, which helps reduce noise and gives family members or guests more independence. This is useful for households with children, teenagers, visiting relatives, or live-in family members.
With 5 full bathrooms, the home can comfortably support all 5 bedrooms. The additional half bathrooms are also practical for guests, outdoor entertaining, and general household use. In a home with a lanai, balcony, rec room, formal dining, and multiple gathering spaces, extra bathrooms improve comfort and traffic flow.
The bedroom arrangement also gives homeowners flexibility. One bedroom could serve as a guest suite, another could be used for an older child, and another could become a private room for extended family. Because the main level carries most of the home’s living space, the layout remains easy to navigate despite its size.
Laundry Storage Function
The main-level laundry room supports the home’s emphasis on convenience. Since most bedrooms and daily living areas are located on the first floor, laundry can be handled without going up and down stairs. This is especially helpful in a large house where efficient daily routines matter.
The 3-car garage arrangement provides 1,004 square feet of parking and storage space. The 2-car garage on one side and the 1-car garage on the other side allow homeowners to separate vehicles, tools, golf carts, bikes, beach gear, or hobby equipment. This split arrangement can be especially useful for active households.
Storage needs are also supported by bedroom closets, bathroom storage, garage space, kitchen cabinetry, and the wet bar area. In a coastal or Florida-style home, garage storage may also be used for outdoor furniture cushions, pool supplies, sports equipment, fishing gear, or seasonal decorations.
The outdoor kitchen adds functional storage near the lanai. It can hold grilling tools, serving items, outdoor-safe dishware, and supplies for casual meals. This helps reduce the need to carry everything from the main kitchen every time the family eats outside.
The upstairs rec room can also include built-in storage depending on how the homeowner chooses to finish and furnish the space. Cabinets, media storage, game storage, or hobby shelving could make the room even more useful.
Because the plan includes several lifestyle spaces, good storage planning will be important during construction and interior design. Built-ins, closet systems, pantry organization, garage cabinets, and outdoor storage can all help the home function at its best.
Structure Specifications
This coastal contemporary home includes 4,621 square feet of heated living space. The first floor provides 4,041 square feet, while the second floor adds 580 square feet for the rec room and related upper-level space. The layout is designed primarily for one-level living with a useful second-floor bonus-style area.
The standard foundation is slab, which is common in many coastal, Florida-style, and warm-climate regions. The main floor exterior walls are listed as block or CMU construction, with 2×6 construction also listed as an optional wall type. Final wall systems should always be reviewed with a local builder based on climate, wind requirements, energy codes, and local construction practices.
The home measures 81 feet wide by 102 feet 10 inches deep. This depth allows the plan to include a large rear lanai and a spacious main-level layout. The maximum ridge height is 29 feet 4 inches, which supports the second-floor recreation room while keeping the overall massing balanced.
The attached garage provides 1,004 square feet of space and holds 3 cars. The garage uses a courtyard-entry arrangement, with a 2-car section on the left and a 1-car section on the right. This gives the exterior a balanced arrival court and provides strong vehicle storage.
The roof has a 5 on 12 primary pitch, which supports the coastal contemporary look. It helps the home feel modern and low-profile while still giving it enough roof form for architectural interest.
Outdoor square footage is also a major part of the specifications. The home includes a 990 square foot lanai and a 171 square foot balcony or veranda. These areas add substantial usable living space beyond the heated interior.
Lifestyle Cost
This house plan is a strong fit for homeowners who want a large coastal contemporary home with generous outdoor living and flexible entertainment spaces. It works well for families, frequent hosts, multigenerational households, or homeowners who want a primary residence that feels like a private retreat.
The main-level living arrangement supports everyday convenience, while the upstairs rec room creates separation for recreation or relaxation. The lanai, outdoor fireplace, outdoor kitchen, wet bar, formal dining room, breakfast nook, and balcony all support a lifestyle centered around comfort and entertaining.
In the United States, a realistic broad construction cost estimate for a 4,621 square foot coastal contemporary home like this may range from about $950,000 to $1,750,000 or more. This estimate is general and can vary widely based on location, labor rates, coastal building requirements, contractor pricing, material selections, finish level, and site conditions.
Costs may increase in coastal areas where wind ratings, impact-rated windows, flood-zone requirements, elevated site work, specialized engineering, and durable exterior materials are required. The large lanai, outdoor fireplace, outdoor kitchen, balcony, 3-car garage, and multiple bathrooms can also add significantly to the final construction budget.
Interior finish choices will also affect the total cost. Custom cabinetry, premium appliances, luxury bathroom fixtures, wet bar equipment, high-end flooring, specialty lighting, and upgraded doors and windows can move the project into a higher price range.
Homeowners should also budget for costs beyond the heated living area, including the driveway, landscaping, drainage, utility connections, pool planning if desired, permits, engineering, outdoor living finishes, and local code requirements. A local builder can provide the most accurate estimate after reviewing the lot and the desired finish package.
Final Thoughts
This 4,621 square foot coastal contemporary house plan offers a strong mix of elegant design, practical one-level living, and resort-style outdoor space. With 5 bedrooms, 5 full bathrooms, 3 half bathrooms, a second-floor rec room, a covered balcony, a large lanai, an outdoor fireplace, an outdoor kitchen, and a 3-car garage, the home is designed for comfort and entertaining.
The exterior has a clean coastal contemporary character with a balanced courtyard garage arrangement and a layout that fits warm-weather living. The broad lanai and upper balcony give the home excellent outdoor appeal, while the interior supports both formal and casual gathering.
The split-bedroom layout, first-floor master suite with sitting area, main-level laundry, wet bar, breakfast nook, and formal dining room make the plan practical for everyday life. The upstairs rec room adds flexibility without making the home feel like a traditional two-story design.
For homeowners looking for a spacious coastal contemporary house plan with mostly one-level living, a large lanai, an upstairs recreation room, and a private balcony, this design offers a polished and functional solution. It is well suited for families who want a relaxed luxury home with plenty of room to gather, host, and enjoy outdoor living.
