Colonial Home Design: 3-Bedroom Floor Plan with Open Living Space and Jack and Jill Bathroom

Colonial-style homes have defined American residential architecture for over three centuries, evolving from the simple symmetrical forms of early settlers to the flexible, open-plan layouts that modern families demand. The 1,998-square-foot colonial design featured here shows how horizontal lap siding, white-framed windows, and a gabled portico can frame a two-story layout that balances formal spaces with casual living. The floor plan includes three bedrooms, two-and-a-half bathrooms, a main-floor office, and a two-car garage. This design shares structural DNA with traditional colonial home floor plans for 5-bedroom two-story houses, adapting the classic center-hall concept to a more compact footprint.

Exterior Design Elements of the Colonial Revival Style

The exterior of this colonial home relies on horizontal lap siding as its primary cladding material. Lap siding, also called clapboard or weatherboard, consists of long, overlapping planks that shed water efficiently while providing a clean, linear appearance. Cedar lap siding costs $5 to $10 per square foot installed, while fiber cement lap siding runs $7 to $12 per square foot and offers better fire resistance and rot protection. The white-framed double-hung windows are a colonial standard, typically arranged in a symmetrical pattern with six-over-six or eight-over-eight light configurations. French colonial home designs with 4-bedroom layouts share this emphasis on symmetrical window placement but often incorporate wrap-around galleries that this more reserved colonial revival style omits in favor of a simple gabled portico.

Gabled Portico and Front Entry Design

The welcoming gabled portico in this plan is supported by a concrete stoop and a glazed front door. A portico differs from a full porch in that it covers only the entry area, typically extending 4 to 6 feet from the door. This smaller scale keeps costs lower while still providing weather protection at the main entry. The concrete stoop should be at least 3 feet deep and 4 feet wide to allow two people to stand comfortably while unlocking the door. A glazed front door with sidelights brings natural light into the foyer while maintaining the solid, secure appearance expected in colonial design. The cost for a fiberglass glazed front door with sidelights ranges from $1,200 to $2,500 installed.

Double Front-Facing Garage and Mudroom Connection

A double front-facing garage provides parking for two vehicles and connects to the home through a practical mudroom. The garage doors face the street, which is the most common configuration in colonial revival homes and matches the traditional garage placement found in older neighborhoods. The mudroom acts as a transition space where homeowners can remove shoes and coats before entering the kitchen or hallway. This room should include at least 6 linear feet of built-in bench and hooks, plus a closet for coats and boots. A tiled or vinyl floor in the mudroom handles wet shoes and muddy boots better than hardwood or carpet.

Exterior ElementMaterialTypical CostMaintenance Interval
Lap sidingCedar or fiber cement$5-$12/sq ft installedPaint every 7-10 yrs
Window framesVinyl or aluminum-clad wood$400-$1,200 eachClean annually
Portico roofAsphalt shingles or standing seam metal$1,500-$3,500Shingles 20 yrs, metal 40 yrs
Front doorFiberglass with glazing$1,200-$2,500Check weatherstripping yearly
Garage doorsSteel with insulation$800-$1,500 eachLubricate hardware annually

Main Floor Layout: Foyer, Office, Living Room, and Open Family Space

The foyer with a staircase greets visitors upon entry, flanked by the home office on one side and the beamed living room on the other. This center-hall arrangement is a colonial trademark, with the stair acting as the vertical and visual anchor of the main floor. The home office, positioned at the front of the house, provides a dedicated workspace separate from the family living areas. A closet in the office makes it convertible to a main-floor guest bedroom if needed. Colonial revival home floor plans with open-concept living often preserve this front-office layout because it reinforces the symmetrical facade while meeting the growing demand for remote-work space.

Beamed Living Room with Fireplace

The living room in this colonial plan includes exposed beams on the ceiling and a fireplace as the central feature. Beamed ceilings add architectural interest without increasing ceiling height, and they can be achieved with faux urethane beams at $15 to $30 per linear foot instead of solid wood beams at $40 to $80 per linear foot. The fireplace, whether wood-burning, gas, or electric, provides both ambient heat and a visual gathering point. A gas fireplace insert costs $2,500 to $5,000 installed and delivers 70 to 85 percent efficiency, compared to a traditional wood fireplace at 10 to 30 percent efficiency. The beamed living room connects visually to the open family room and kitchen beyond, creating a sightline from the front of the house to the rear.

Open Floor Plan: Family Room, Kitchen, and Dining Room

The family room, kitchen, and dining room flow together in an open floor plan at the rear of the main level. The family room features a second fireplace, providing a separate hearth from the formal living room. Sliding glass doors in the dining area open to the backyard, where a patio can be added for outdoor dining. The open layout creates a continuous 30 to 40 foot span from the family room through the kitchen to the dining area, which makes the 1,998-square-foot floor plan feel significantly larger than its total area suggests. Ceiling height throughout this open zone should be consistent at 9 feet to maintain visual continuity.

Kitchen Design: Island with Dual Vanities and Corner Pantry

The kitchen in this colonial home includes a corner pantry and a multi-use island equipped with dual vanities, a dishwasher, and a snack bar. The term vanities here refers to the island sink fixtures, which are often called prep sinks in kitchen design. Dual sinks on an island allow two people to work simultaneously, one washing vegetables while the other fills pots or cleans dishes. The island snack bar extends 12 to 15 inches past the base cabinets on the seating side, providing knee room for three to four bar stools. Mediterranean home designs with Spanish colonial features also prioritize large kitchen islands, though they tend to use tile countertops and exposed shelving rather than the solid-surface countertops and closed cabinetry typical of colonial revival kitchens.

Kitchen Island FeatureDimensionFunction
Island length7-9 ftAccommodates 3-4 stools plus prep zone
Island width3-4 ftProvides counter depth for both sides
Prep sink (each)14-18 inch diameterVegetable washing, hand washing
Dishwasher space24 inches wideStandard residential dishwasher
Snack bar overhang12-15 inchesKnee clearance for seated guests
Corner pantry4 x 4 ft to 5 x 5 ftDry goods, small appliance storage

Upstairs Bedroom Configuration with Jack and Jill Bathroom

All three bedrooms reside on the second floor along with a conveniently located laundry room. Two of the secondary bedrooms share a Jack and Jill bathroom, a layout in which a single bathroom connects to two bedrooms through separate locking doors on either side. This arrangement gives each bedroom direct access to the bathroom without requiring passage through a common hallway. The Jack and Jill bathroom typically includes a single vanity area flanked by the two bedroom doors, with the toilet and shower-tub combination in a separate compartment for privacy. This layout is especially practical in a 3-bedroom colonial where two children occupy the secondary bedrooms and the primary suite has its own ensuite bath.

Primary Suite Bathroom Design

The primary suite enjoys a well-appointed bathroom with dual vanities, a soaking tub, a tiled shower, and a sizable walk-in closet. Dual vanities, set 60 to 72 inches apart, provide separate sink areas for two people, reducing morning congestion. The soaking tub, typically 60 by 30 inches, requires a floor structure rated for 900 to 1,200 pounds when filled with water and an occupant. A separate tiled shower with a glass enclosure measures at least 36 by 36 inches for a standard unit, though 42 by 48 inches provides more comfortable space. The walk-in closet should include both hanging rods at two heights, 66 inches for long garments and 42 inches for shirts and folded items, plus shelving for shoes and accessories. Adding modern living space to a colonial-era home requires careful planning around existing structural layout, but new-construction colonial designs like this one integrate these amenities from the start.

Second Floor RoomTypical SizeKey Features
Primary bedroom14 x 16 ftEnsuite bath, walk-in closet
Secondary bedroom 111 x 12 ftJack and Jill access
Secondary bedroom 211 x 12 ftJack and Jill access
Primary bath9 x 10 ftDual vanities, tub, separate shower
Jack and Jill bath8 x 8 ftVanity, toilet, shower-tub
Laundry room5 x 7 ftWasher, dryer, folding counter

Second Floor Laundry Room Placement

Locating the laundry room on the second floor, where all three bedrooms are located, eliminates the need to carry laundry up and down stairs. This placement is one of the most requested features in modern colonial floor plans, as it saves time and physical effort over the life of the home. A second-floor laundry room requires proper floor reinforcement to handle the weight of appliances and water, plus a drain pan with a floor drain to contain leaks. The room should have at least 6 by 6 feet of floor space to accommodate side-by-side or stacked washer and dryer units, plus a folding counter and storage cabinets. Venting for a gas dryer requires a direct 4-inch duct to the exterior, while electric dryers can vent through a shorter duct run.

For homeowners who prefer a more traditional two-story layout with additional bedroom capacity, a two-story 5-bedroom colonial home floor plan offers a larger footprint with the same architectural language of lap siding, gabled entries, and symmetrical window placement. The colonial style adapts to a range of sizes from 1,500 to over 4,000 square feet, with the defining elements of symmetry, centered entry, and side-gabled roof remaining consistent across all scales. Builders report that colonial revival homes sell 10 to 15 percent faster than comparably priced contemporaries in most markets, driven by the style’s familiar proportions and long-proven floor plan logic.