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3645 Square Foot Contemporary Home with 4 Bedrooms, Dual Primary Suites, Study, and 3-Car Garage

imorgani by imorgani
July 28, 2026
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3645 Square Foot Contemporary Home with 4 Bedrooms, Dual Primary Suites, Study, and 3-Car Garage
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This spacious contemporary home offers approximately 3,645 square feet of heated living space in a carefully organized single-story layout. With four bedrooms, four full bathrooms, one half bathroom, two primary suites, a dedicated study, and a three-car side-entry garage, the design is well suited to families who value privacy, accessibility, and modern open living.

The broad floor plan keeps every essential room on one level. Bedrooms, bathrooms, laundry, kitchen, and gathering spaces can all be reached without stairs, making the home practical for families with children, older relatives, or homeowners planning for long-term comfort.Two primary suites are one of the most valuable features. They allow the home to accommodate grandparents, adult children, long-term guests, or two household members who each prefer a private bedroom and bathroom arrangement.The kitchen and main living area share an open-concept layout that supports everyday connection and entertaining. A large center island adds workspace, storage, seating, and a natural gathering point between the cooking and relaxation zones.Outdoor living is supported by a covered front porch and an expansive rear porch. Together, these spaces provide approximately 754 square feet of porch and patio area, giving the household plenty of room for outdoor dining, relaxation, and entertaining.

The Property Includes:

  • Approximately 3,645 square feet of heated living space
  • Four bedrooms
  • Four full bathrooms
  • One half bathroom
  • Single-story floor plan
  • Two primary suites
  • Open-concept kitchen and living area
  • Large kitchen island
  • Dedicated home study
  • Main-floor laundry room
  • Functional mudroom
  • Covered front porch
  • Large covered rear porch
  • Approximately 754 square feet of porch and patio area
  • Three-car side-entry garage
  • Approximately 1,083 square feet of garage and storage space
  • Ten-foot main-floor ceilings
  • Low-pitched contemporary roofline
  • Slab foundation

Exterior & Curb Appeal

The exterior presents a confident contemporary appearance with clean horizontal lines, broad roof planes, deep overhangs, and carefully balanced wall sections. Rather than depending on decorative ornament, the design creates visual interest through proportion, texture, and changes in material.

A wide footprint gives the home a strong estate-like presence. The front elevation can combine smooth stucco, horizontal siding, natural stone, brick, wood accents, or large-format panels to create a layered but controlled composition.The covered front porch marks the entrance without interrupting the clean geometry of the façade. It provides shelter for guests and enough space for a bench, sculptural planters, or modern outdoor seating.Large windows can reinforce the contemporary style while bringing natural light deep into the interior. Dark window frames would create crisp contrast against lighter exterior finishes, while warm wood details could soften the overall appearance.The side-entry garage keeps the three garage doors away from the main front elevation. This helps the house maintain a refined residential character and allows the entrance, windows, and exterior materials to remain the visual focus.

Open Living Areas

The central living spaces are arranged around an open floor plan that supports both everyday routines and large gatherings. The kitchen and main gathering room remain visually connected, allowing conversations to continue naturally between cooking, dining, and relaxation zones.Ten-foot ceilings give the interior generous proportions and provide room for tall windows, oversized doors, large artwork, and architectural lighting. The added height helps the broad rooms feel balanced rather than compressed.The main living room can accommodate multiple sofas, lounge chairs, side tables, and a large entertainment or fireplace wall. Furniture can be arranged to create a comfortable conversation area while preserving clear circulation toward the kitchen, rear porch, study, and bedroom wings.A contemporary fireplace could become the room’s focal point. It may be framed with stone, concrete, tile, or smooth plaster and paired with low built-in cabinets for storage and media equipment.The open arrangement is particularly useful during gatherings. Guests can move between the kitchen, living room, and rear porch without passing through narrow doorways or private bedroom areas.

Kitchen

The kitchen is positioned at the center of daily activity and includes a substantial island. This island provides additional space for food preparation, serving, casual dining, and conversation.Seating along one side can create a relaxed breakfast counter or informal place for children and guests to gather. The island may also contain deep drawers, cabinets, a preparation sink, electrical outlets, a microwave, or waste and recycling storage.Perimeter cabinetry offers generous room for cookware, dishes, pantry items, and countertop appliances. Extending cabinets closer to the ten-foot ceiling can maximize storage while creating a clean built-in appearance.A large range and streamlined hood can anchor the cooking wall. Stone countertops, slab-front cabinetry, integrated appliances, and simple pendant fixtures would support the contemporary character.The open connection to the living area allows the cook to remain part of family activities. During entertaining, the island can function as a buffet, beverage station, dessert counter, or casual serving zone.A carefully planned work triangle between the refrigerator, sink, and cooking area will help the large kitchen remain efficient. Pull-out shelves, tray dividers, appliance garages, and deep drawers can further improve organization.

Dining Area

The dining area can accommodate a generous table suitable for everyday meals and formal gatherings. Its close relationship with the kitchen makes serving and cleanup easy.A rectangular table with seating for eight or more can fit naturally within a home of this scale. A linear chandelier or sculptural pendant can define the dining zone while preserving the open flow of the room.A sideboard or built-in cabinet may provide storage for linens, serving dishes, glassware, and seasonal tableware. These pieces can also create an additional surface for buffets and celebrations.Direct access to the rear porch allows meals to extend outdoors. Guests can move between indoor and outdoor dining without entering either primary suite or the secondary bedroom area.

Primary Suite One

The first primary suite is positioned on the main floor and arranged as a private retreat. Its separation from the central living spaces helps reduce noise and creates a peaceful environment for rest.The bedroom can accommodate a king-size bed, nightstands, dressers, and a comfortable sitting area. Large windows can bring in natural light while preserving practical walls for furniture placement.The private bathroom can include dual vanities, a large walk-in shower, a soaking tub, and a separate toilet compartment. Individual storage areas allow two adults to prepare at the same time without crowding a single vanity.Large-format tile, natural stone, warm wood cabinetry, and simple modern fixtures would suit the contemporary design. Built-in linen storage can keep towels and supplies close at hand.A generous walk-in closet provides room for clothing, shoes, accessories, and seasonal items. Double hanging rods, drawers, shelves, and upper cabinets can maximize capacity.

Primary Suite Two

The second primary suite gives the home exceptional flexibility. It may be used by grandparents, adult children, long-term guests, or another household member who wants a fully private sleeping and bathing arrangement.Because it is located on the main floor, the suite is accessible without stairs. This makes it especially useful for multigenerational living and aging in place.The bedroom can support a queen-size or king-size bed, bedside tables, a dresser, and a small sitting area. A private bathroom improves independence and reduces pressure on the other household bathrooms.Depending on the final configuration, the suite may also include a walk-in closet or generous built-in storage. This allows it to function as a permanent bedroom rather than a temporary guest room.The dual-suite arrangement gives the home the flexibility of a private family wing without requiring a separate apartment or detached guest house.

Secondary Bedrooms

Two additional bedrooms complete the four-bedroom layout. These rooms can accommodate children, guests, or family members while maintaining convenient access to full bathrooms.Each room can support a bed, dresser, bedside table, and compact desk or reading chair. Closet storage helps keep personal belongings organized and reduces the need for oversized furniture.The bedrooms may be grouped within their own wing, creating separation from the primary suites and main entertaining areas. This arrangement helps several household members maintain different schedules without disturbing one another.One bedroom could also function as a nursery, hobby room, fitness space, or second office if the household does not need four permanent sleeping rooms.

Bathrooms

The home includes four full bathrooms and one half bathroom. This generous arrangement provides excellent support for the four-bedroom floor plan and large entertaining areas.Each primary suite benefits from a private bathroom, while the remaining full bathrooms serve the secondary bedrooms. This reduces morning congestion and allows guests and family members to maintain privacy.The half bathroom is convenient for visitors because it can be reached without entering a bedroom suite. It can also serve the study, kitchen, and main living areas during the day.Secondary bathrooms can be equipped with walk-in showers or tub-and-shower combinations according to the expected users. A bathtub may be practical for children, while a low-threshold shower can improve accessibility.Durable tile, spacious vanities, built-in linen storage, and layered lighting can make the bathrooms comfortable and easy to maintain.

Office / Study

A dedicated study provides a quiet environment for remote work, reading, household administration, or focused projects. It allows all four bedrooms to remain available as sleeping rooms.The study can accommodate a large desk, bookshelves, filing cabinets, and guest seating. Built-in cabinetry may transform it into a refined home library or executive workspace.A closable door helps reduce noise from the kitchen and living room during calls or concentrated work sessions. This separation is valuable in a busy household where several people may be home during the day.When a formal office is not required, the room can become a music room, homework center, craft studio, reading lounge, or quiet sitting room.

Mudroom / Laundry / Pantry / Storage

The mudroom creates an organized transition between the three-car garage and the interior. It provides a designated place for shoes, coats, bags, sports equipment, and outdoor supplies.A built-in bench with hooks, drawers, and individual cubbies can help contain everyday clutter. Upper cabinets may store seasonal accessories and items that are used less frequently.The laundry room is located on the main floor, close to all four bedrooms. This keeps clothing care convenient and eliminates the need to carry baskets between levels.The room can accommodate a washer, dryer, utility sink, folding counter, hanging rail, and storage cabinets. Additional sorting bins would be useful in a home designed for a larger household.Storage is also available within the kitchen, bedroom closets, bathroom cabinets, study, mudroom, and garage. This distributed approach helps keep the visible living spaces calm and uncluttered.

Garage & Storage

The attached three-car garage provides approximately 1,083 square feet of unheated space. It offers room for multiple vehicles while retaining capacity for tools, bicycles, lawn equipment, and seasonal storage.The garage includes dedicated storage potential, allowing homeowners to organize household supplies without filling the interior closets. Wall-mounted cabinets, shelving, and overhead racks can make efficient use of the space.A household with two vehicles may use the third bay as a workshop, motorcycle space, home gym, or recreational equipment area. A workbench, utility sink, and pegboard could create a practical project zone.The side-entry orientation keeps the garage doors away from the main front elevation. It also creates a private family arrival point that connects conveniently with the mudroom.

Outdoor Living

The home includes approximately 754 square feet of porch and patio space, with 64 square feet at the front and approximately 690 square feet at the rear.The front porch creates a sheltered entrance and provides room for compact seating or decorative planters. Its simple geometry complements the contemporary architecture.The large rear porch functions as a true outdoor living area. It can accommodate a dining table, lounge furniture, a grilling station, ceiling fans, and an outdoor television.Because the rear porch connects closely with the main living spaces, it can expand the usable entertaining area during gatherings. Large sliding or folding doors could further strengthen the indoor-outdoor relationship.An outdoor kitchen, fireplace, or built-in grill could turn the porch into a year-round social space in warmer climates. The surrounding yard may support a pool, fire pit, lawn, garden, or detached pavilion.The broad porch also provides shade for the rear windows and helps protect the interior from intense afternoon sunlight.

Dimensions & Structural Details

  • Total Heated Area: 3,645 sq. ft.
  • First-Floor Area: 3,645 sq. ft.
  • Total Unheated Area: 1,083 sq. ft.
  • Garage Area: 1,083 sq. ft.
  • Total Porch and Patio Area: 754 sq. ft.
  • Front Porch Area: 64 sq. ft.
  • Rear Porch Area: 690 sq. ft.
  • Bedrooms: 4
  • Full Bathrooms: 4
  • Half Bathrooms: 1
  • Stories: 1
  • Garage Capacity: 3 Cars
  • Overall Width: 103 ft. 4 in.
  • Overall Depth: 66 ft. 2 in.
  • Overall Height: 26 ft.
  • Main-Floor Ceiling Height: 10 ft.
  • Main Roof Pitch: 4:12
  • Standard Exterior Framing: 2×4 Wood
  • Optional Exterior Framing: 2×6 Wood
  • Foundation: Slab

The 103-foot, 4-inch width makes this home best suited to a wide suburban, rural, or estate-style property. Additional side clearance is important for comfortable access to the side-entry garage.The 66-foot, 2-inch depth allows the house to maintain a broad single-story arrangement without extending excessively far into the lot. Local front, side, and rear setback requirements should be reviewed before selecting a building site.The 26-foot overall height and 4:12 roof pitch create a low, horizontal contemporary profile. This roof configuration is visually clean and may be simpler to frame than a collection of steep gables.Ten-foot ceilings give the interior a spacious character and allow large windows and doors to be used throughout the main floor. Foundation, framing, insulation, and engineering details should be adjusted to local conditions and building codes.

Quick Specs Table

Feature Details
Architectural Style Contemporary
Heated Living Area 3,645 sq. ft.
Bedrooms 4
Full Bathrooms 4
Half Bathrooms 1
Stories 1
Primary Suites 2
Garage 3 Cars
Garage Area 1,083 sq. ft.
Overall Width 103 ft. 4 in.
Overall Depth 66 ft. 2 in.
Overall Height 26 ft.
Main Ceiling Height 10 ft.
Roof Pitch 4:12
Porch and Patio Area 754 sq. ft.
Special Features Dual Primary Suites, Study, Mudroom, Kitchen Island, Open Floor Plan, and Large Rear Porch

Estimated U.S. Build Cost

Construction costs vary significantly by region, labor rates, site preparation, material selections, and interior finish quality. The wide single-story footprint, four full bathrooms, large garage, dual primary suites, and expansive rear porch can increase the overall budget.

Finish Level Estimated Construction Cost
Economy Finish $620,000 to $730,000
Mid-Range Finish $730,000 to $910,000
High-End Finish $910,000 to $1,150,000+

The economy range assumes practical exterior finishes, standard windows, builder-grade cabinetry, durable flooring, modest fixtures, and relatively straightforward site conditions.A mid-range build may include upgraded windows, semi-custom cabinetry, stone countertops, premium flooring, improved bathroom finishes, large sliding doors, and higher-quality porch materials.The high-end range could include custom cabinetry, luxury appliances, extensive natural stone, premium glazing, elaborate lighting, advanced mechanical systems, automated controls, and professionally planned landscaping.Adding a pool, outdoor kitchen, complex drainage system, long utility connections, extensive retaining walls, or detached structures would increase the total investment.These estimates may not include land, permits, financing costs, furniture, utility extensions, unusual engineering requirements, or major landscape construction. A local contractor should review the complete drawings and building site before preparing a final construction budget.

Why This Home Works So Well

This contemporary home works especially well because it combines a spacious open interior with the convenience of single-story living. Every bedroom, bathroom, gathering area, and utility space can be reached without stairs.The two primary suites give the layout unusual flexibility. They can support multigenerational living, long-term guests, adult children, or household members who each want a private retreat.The open kitchen and living area create a comfortable center for daily life, while the dedicated study provides a quieter space for remote work and focused tasks.Four full bathrooms and a separate powder room make the house practical for both family routines and entertaining. The mudroom and main-floor laundry add organization

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