6 Bedroom House Plans: 4,384 Sq Ft New American Farmhouse

4,384Heated sq. ft.

6Beds

5.5Baths

2Stories

4Cars

Plan 150019HRP from the Architectural Designs marketplace is the kind of plan large families and multigenerational households go looking for. The headline numbers (4,384 heated square feet, six bedrooms, five and a half baths, a four-car garage with shop space) read like a multigenerational brief, and the plan actually delivers on that promise rather than just stacking bedrooms. An office and a separate den on the main level, a main-floor guest suite with a private bath, a laundry and mudroom cluster at the garage end, and genuinely extensive front and rear porches. Below, we walk through it as reviewers, not the designer, with construction-cost ranges calibrated to current Southeast builder pricing and the structural watch-outs worth raising with anyone considering the build.

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Floor Plans Walk-Through

Main Level

Second Floor

The main level reads along a clear public-to-private gradient. The foyer opens into a two-story volume (the living room rises the full height, with the upstairs loft overlooking it), and the kitchen sits to the left of the great room, separated by a partial wall that signals transition without closing the volume off. The walk-in pantry bridges the kitchen to the foyer-side drop zone, which is a smart move: grocery loading flows past the pantry on its way inward, so unloading doesn't cross the kitchen work zone. The master suite occupies the right wing, isolated from the main-level public rooms by a vestibule corridor, with dual vanities, a separate tub and shower, and a 13'-3" by 8'-3" walk-in closet reached through the bath. The laundry sits at the opposite end of the house beside the kitchen and mudroom, which suits garage-side drop-off but means a longer walk with hampers from the master wing. A second bedroom on the main level offers a full en-suite, well-suited to in-law, long-term guest, or caregiver use, while a dedicated home office (for heads-down work) and a separate den (for casual reading or family gathering) sit adjacent to each other off the foyer. The mudroom connects the main house to the four-car garage by way of a utility/shop zone that gives you the tool storage and potting or hobby space that a four-car garage usually promises but rarely delivers. The second level holds four secondary bedrooms (two share a Jack-and-Jill, two have private en-suites) plus a loft overlooking the living room. The loft is genuinely flexible: media room, kids' study zone, or sleeping overflow when the house is full.

Exterior & Outdoor Living

Front elevation of Plan 150019HRP New American Farmhouse showing multi-gabled rooflines, white board-and-batten siding, pale stone veneer base, silver standing seam metal roof, deep front porch with timber posts, and gravel front walk

The exterior commits fully to the New American Farmhouse vocabulary. A multi-gabled roofline breaks up what would otherwise be a long horizontal mass; at roughly 95 feet of main-house width plus garage, that rhythm is structurally important, not just aesthetic. The rendering shows a standing seam metal roof in bare silver Galvalume across the main house and the garage alike; 24-gauge panels are typical, and Matte Black or a darker graphite from a manufacturer like Drexel Metals or McElroy are the usual alternatives. Where the budget is tight, some builders keep metal on the main gables and switch the larger planes to an architectural shingle (CertainTeed Landmark or GAF Timberline HDZ). Siding is white board-and-batten (James Hardie at the easiest spec, or a real wood vertical run if the budget supports it) over a pale stone veneer at the lower wrap of the foundation, with stained timber posts carrying the porch. The two deep porches earn the "farmhouse compound" feel: a 59'-10" by 10'-5" front porch and a 40'-2" by 13'-7" back porch together give roughly 1,170 sq ft of covered exterior living space. The garage connects via a covered breezeway, which keeps the four-car mass from dominating the front elevation and creates a genuinely useful weather-protected approach between vehicles and the mudroom. For Charleston-region builds of comparable size, the porch framing and finishes alone typically run $72,000 to $108,000 depending on ceiling material (tongue-and-groove cedar vs. painted beadboard vs. stained pine), lighting layers, and whether the rear porch includes any outdoor kitchen rough-in.

Rear view of Plan 150019HRP showing the covered back porch with dining set, stone veneer base, a pool with loungers and a fire pit seating area

Three-quarter front view of Plan 150019HRP showing the garage wing with dark garage doors, stone veneer base, and the long front porch with timber posts

What Works in This Plan

The work-from-home arrangement is the plan's most distinctive feature. There are two main-level offices with different jobs: the dedicated office is sound-isolated and camera-friendly for calls, and the den next to it serves as casual overflow. For dual work-from-home households or blended families with different work patterns, this is an increasingly valuable layout that most builder-grade plans do not offer. The main-floor guest suite with a private bath is the other standout. Whether the second bedroom serves in-laws, a long-term visiting parent or ADA-accessibility planning for aging in place, that private bath is what separates a usable guest suite from a token bedroom, and it makes this a genuine multigenerational feature rather than a marketing line.

Daily routines are handled carefully. The 8'-0" by 12'-2" laundry sits beside the kitchen and mudroom at the garage end, so dirty gear and sports kit go straight to the washer without crossing the house. The walk-in pantry between kitchen and foyer makes grocery loading work properly, with no crossing of the active kitchen work zone, and NKBA Planning Guidelines 5 and 6 on work-aisle clearances are met without the pantry cutting into island space.

The outbuilding side of the house is well resolved too. The true four-car garage includes a utility and shop bay, a transition zone for lawn equipment, tool storage, a workbench or seasonal staging; typical four-car garages skip it and end up with stuff piled in front of the fourth parking space. The garage-to-house breezeway sets up the compound geometry of house, breezeway and detached-feel garage that belongs to the New American Farmhouse vocabulary, and it keeps the four-car mass from dominating the front approach. The front and back porches add roughly 1,170 sq ft of covered exterior living, which in the Southeast means an extended usable season, and screening part of the rear run is a straightforward finish-later upgrade. Upstairs, the loft overlooking the living room gives flexibility as a media room, study zone or overflow space, though the sound strategy discussed below should be settled before you commit to media use.

Points to Consider Before You Build

Sound and air are the two big issues in the two-story volume. The living room and open loft are acoustically coupled, so voices travel straight up to the loft and into the second-floor corridor. If any upstairs bedrooms back onto the living room, plan for resilient channels, dense insulation such as Roxul Safe'n'Sound or an equivalent, and solid-core doors. The IBC 1207 sound transmission minimums (STC 50 for adjacent occupancies) do not apply to single-family homes, but the principle does. HVAC design is equally demanding, because you are conditioning far more air than a 9-foot ceiling over the same footprint would hold. Run ACCA Manual J for the load calculation, Manual S for equipment selection and Manual D for duct design, and plan for at least three zones (the master wing, the second-floor bedrooms and the public two-story volume) or expect comfort complaints by the second summer.

The footprint and circulation need checking against your lot and routine. The path from garage to kitchen runs through the utility and shop bay, the mudroom and the main hall, three transitions that become real friction on daily grocery trips with kids and bags; consider a straight cart path from mudroom to pantry at framing, or count the extra steps in your evaluation. The four-car garage also makes the house wide, approaching 95 feet including the breezeway and garage mass. Confirm lot width plus side setbacks, because on narrower suburban lots under 100 feet wide this plan simply will not fit. Rural or semi-rural acreage is its natural setting.

Several code points should be confirmed with your builder. IRC R302.6 requires 5/8-inch Type X gypsum on the garage-side walls and ceiling, plus a self-closing 20-minute door between garage and living space; check it at framing. IRC R310 requires emergency escape and rescue openings in every bedroom, with at least 5.7 sq ft of clear opening, a minimum of 20 inches wide by 24 inches tall, and a sill no higher than 44 inches above finished floor. Verify that in each of the four upstairs bedrooms at permit review, especially if the window layout changes during value engineering. The two shared bedrooms each open into their Jack-and-Jill bath, and a well-designed one uses indicator locks so one occupant cannot lock the other out, so confirm the hardware schedule includes them.

Running costs follow the size. A 4,384 sq ft home in the Charleston climate zone typically runs $380–$620 per month in combined utilities, depending on envelope performance, meaning IECC R402 compliance, air tightness and HVAC equipment selection. It pays to specify the envelope up front rather than chase efficiency after move-in.

Facade Variations

None of the six facades below is sold with Plan 150019HRP. They are concept renderings from our desk showing how the same footprint might be dressed for different markets, from a copper-roofed farmhouse to Cor-Ten industrial, and they are meant as a starting point for the finish conversation with a builder or architect.

Warm Modern Farmhouse

The most broadly marketable direction. Horizontal James Hardie lap siding in a warm factory white sits under a copper-toned standing seam metal roof from Drexel Metals. Specify their Aged Copper finish (which reads copper without the real-copper price tag that runs $18–$24 per sq ft installed) and you get the warmth without the long-term patina unpredictability. Eldorado Stone Cliffstone in Sandalwood wraps the lower foundation of the house and garage. Natural cedar timber porch posts and cedar gable trusses with a Penofin clear finish add the rustic note. Landscape is xeriscape-leaning: a gravel path with timber steps set into it, Karl Foerster and Pennisetum ornamental grasses, yucca accents, a few boulders and low junipers. This style plays everywhere in the Southeast but reads most natively in Nashville, Franklin, Chattanooga, and northern Georgia.

High-Contrast Modern Zen

A sharper, more contemporary read. The upper body and the garage are clad in smooth white (James Hardie smooth siding in factory white), while dark charcoal vertical Hardie Artisan panels cover the whole front wall under the porch roof, so the porch reads as a deep shadow band across the house. Marvin Modern factory-black aluminum-clad windows. Standing seam metal roof in 24-gauge matte black. Landscape is restrained and Zen-influenced: large 24x36 concrete pavers set into a raked gravel field, moss mounds, one Acer palmatum 'Bloodgood' Japanese maple as a specimen, and a handful of carefully placed feature boulders. This direction suits Raleigh-Durham, intown Atlanta and Austin, and increasingly Charleston's design-forward Daniel Island and Park West sub-markets.

Rustic Craftsman

A heavier, more grounded direction. Western red cedar boards run vertically across the gable faces of the house and garage, set against horizontal lap siding in a warm taupe on the main body (Benjamin Moore Shaker Beige HC-45 is a reasonable paint reference). Dark Montana ledgestone veneer wraps the base and forms the piers under the porch columns. The columns themselves are tapered cedar craftsman posts; if a builder upsizes to solid 8x8 timbers rather than the 6x6 standard spec, confirm the sizing with a structural engineer per ASCE 7 load requirements. Standing seam metal roof in dark bronze from Drexel. Landscape is traditional: a natural flagstone walkway edged in river rock, Kichler path lights, massed hydrangeas, ornamental grasses, and a manicured zoysia lawn. This style holds up best in Asheville, mountain markets, upstate South Carolina, and north Georgia wooded lots.

Monochromatic Black

The boldest architectural statement in the set. Every exterior element shifts to black: James Hardie board-and-batten in factory-painted Benjamin Moore Onyx 2133-10, matching dark-stained stone veneer (charcoal-stained Eldorado Hillstone Mariposa), Marvin Modern black-framed windows, and a 24-gauge matte black standing seam roof. The landscape provides the entire color story: a crushed white marble chip driveway and path, sharply sheared Green Velvet boxwood in geometric forms, matte black iron planters with spherical topiaries, and bright zoysia lawn. This direction polarizes. It lights up in design-forward micromarkets (Atlanta BeltLine, East Austin, parts of Charleston's King Street-adjacent peninsula) and over-narrows the buyer pool in conservative suburbs.

Moody Farmhouse

A darker, evolved take on the modern farmhouse. James Hardie board-and-batten painted Benjamin Moore Iron Mountain 2134-30, a dark grey that reads almost black in shade and reveals its warmth in direct light. Montana ledgestone veneer with subtle brown undertones at the base and chimney. Natural cedar porch posts in Penofin clear finish add the contrast. Standing seam dark metal roof. Landscape is naturalistic but edited: a broad Pennsylvania slate paver walkway with integrated Kichler 12V path lighting, massed Hakonechloa macra (Japanese forest grass), autumn fern, creeping thyme in joints, and three large specimen boulders set as sculptural features. This direction suits most Southeast markets and is a sensible choice when you cannot decide between the others.

Industrial Modern

The most unusual direction, and genuinely polarizing. Concrete-look fiber-cement panels such as Equitone Tectiva in Natura Grey (budget roughly $14 per sq ft installed for this class of panel) cover the main body, with Cor-Ten weathering steel panels in a 3x8-ft module layout on the garage mass. Board-marked concrete base wrapping the foundation and chimney. Standing seam dark metal roof. Black powder-coated steel porch posts instead of wood. Landscape is desert-modern xeriscape: a concrete walkway, beds of 3-5 inch grey river stone, sculptural Agave americana and Golden Barrel cactus, yucca plants, and raw concrete planter walls. This look works beautifully in Austin, East Nashville, and design-first Atlanta infill, and honestly fights with the traditional wrap-around porch geometry of the underlying plan, which is exactly the tension that makes it interesting.

Regional Cost & Fit Across the Southeast

Plan 150019HRP is a 4,384 sq ft two-story build with a four-car garage, a two-story vaulted living volume, and roughly 1,170 sq ft of covered porch. Regional cost figures below are turn-key including allowances for stone and wood accent materials, a finished loft, and a moderate specification of finishes (quartz counters, engineered wood floors, Kohler plumbing). Lot prep, well/septic, pool, and any structured outdoor-kitchen build are not included.

We use Charleston, SC as the baseline (1.00x), where a turnkey build of this plan is estimated at $1,180,000 to $1,580,000. Around Charleston the house only makes sense on rural or sub-rural acreage, because it needs the width. Savannah, GA comes in slightly lower at 0.94x, or $1,109,000 to $1,485,000, and the realistic sites there are the large lots and acreage of Effingham and Bryan counties.

Atlanta, GA sits at 0.95x ($1,121,000 to $1,501,000), with the large-lot builds of Cherokee, Forsyth, Cobb and Fulton counties as the likely setting. Nashville, TN runs cheaper at 0.91x, or $1,074,000 to $1,438,000, and Williamson County, with its acreage and its appetite for big farmhouse plans, is the plan's most natural market.

In Asheville, NC the multiplier is 0.97x ($1,145,000 to $1,533,000), and the mountain setting favours the Rustic Craftsman and Moody Farmhouse facades shown above. Raleigh-Durham, NC is the best value in the set at 0.89x, or $1,050,000 to $1,406,000, and the cleaner High-Contrast Modern Zen and other modern treatments fit that market well.

Austin, TX is the most expensive market here at 1.06x, with a turnkey estimate of $1,251,000 to $1,675,000, and it is also where the two most polarizing looks, Industrial Modern and Monochromatic Black, are most likely to find buyers.

Cost ranges combine RSMeans 2026 City Cost Indexes, NAHB Cost of Constructing a Home data, and typical builder pricing for similar 4,000–4,800 sq ft two-story farmhouse projects from late 2024 through Q1 2026.

Questions Buyers Actually Ask

What size lot does this plan realistically need?

The house plus breezeway and four-car garage approaches 95 feet of overall width. After typical 15–20 foot side setbacks (larger for many rural zones), you're looking at a minimum lot width of 130 feet, and realistically 150+ to leave visual air around the home. Lots from 1 acre to several acres are the native context; suburban quarter-acre or half-acre lots are too tight.

Does the 4,384 sq ft figure include the loft or the porches?

It includes the loft, which is counted as finished conditioned space. It does not include the porches (roughly 1,170 sq ft of covered exterior) or the garage (another 1,200+ sq ft). Total area under roof is closer to 6,800 sq ft when you count everything.

Can this plan be built on a slab instead of a crawlspace or basement?

Yes, all three foundation types work for this plan. Slab is the cheapest in the Lowcountry. Conditioned crawlspace is worth the upcharge in humid zones where mechanicals in the crawl need to stay out of saturation conditions. Walk-out basement works on sloped lots and adds finished or unfinished square footage underneath the main level, which is particularly attractive in upstate and Asheville markets.

How does the two-story living room actually affect utility bills?

Meaningfully. The vaulted volume conditions more air and loses heat faster through the upper gable end walls. Budget for a dedicated HVAC zone for the two-story space, ceiling fans rated for 18+ feet (Big Ass Fans Haiku L or equivalent), and IECC R402-compliant envelope. Expect $60–$120 per month higher utility cost vs. a flat-ceiling equivalent in the same square footage.

Can the Jack-and-Jill be reconfigured to give each upstairs bedroom its own bath?

Yes, with modification. Each shared bedroom gives up roughly 30–40 sq ft of closet or floor area to carve out a dedicated bath. The plan seller's modification service or an independent architect can redraw the layout; budget $1,500–$3,200 in design fees and $22,000–$38,000 in additional construction cost for the two new full baths.

Is a main-floor guest suite really better than a second-floor guest suite?

For in-laws, aging parents, or accessibility planning, categorically yes: stairs are the single biggest barrier to long-term habitability as occupants age. For short-term guests only (a weekend at a time), either works. The value here is optionality. The same room works as in-law suite today, teen suite in five years, and accessible primary if you ever decide to age in place.

What does the breezeway actually add?

Weather-protected transition between the garage and the main house, visual separation of the garage mass from the front elevation, and an architecturally "compound" feel that reads more custom than a typical attached garage. Depending on your jurisdiction and how the breezeway is framed (open, screened, or fully enclosed), it may or may not count toward heated square footage. Confirm with your builder at plan submittal.

Is this plan a good candidate for a home-office tax deduction setup?

The plan itself is well-suited: the dedicated office has its own door and is separated from living zones, which meets the IRS "regular and exclusive use" test. Consult your CPA on the deduction rules; the plan doesn't hurt you and likely helps you document the separation.

Sources & References

Architectural Designs: Plan 150019HRP listing, specifications, and modification quote process.
International Residential Code (IRC) Section R310: emergency escape and rescue opening requirements for sleeping rooms.
IRC Section R302.6: fire separation requirements between dwelling and attached garage.
IRC Section R312: guards and handrails for interior stair, loft, and balcony edges.
International Building Code (IBC) Section 1207: sound transmission requirements and principles (reference for single-family acoustics).
2024 International Energy Conservation Code (IECC) R402: building envelope thermal and air-leakage requirements.
ASHRAE Standard 62.2: ventilation and acceptable indoor air quality in low-rise residential buildings.
ACCA Manual J / Manual S / Manual D: residential load calculation, equipment selection, and duct design protocols.
ASCE 7: minimum design loads and associated criteria for buildings (wind, seismic, snow, and live-load inputs by region).
NKBA Planning Guidelines 5, 6, 27, 28: kitchen work-aisle clearances and master-bath sight-line privacy.
NAHB What Home Buyers Really Want, 2024 edition: feature preferences ranked by buyer demographic.
NAHB Cost of Constructing a Home, 2024 edition: single-family construction cost benchmarks.
RSMeans 2026 City Cost Indexes: regional labor and material cost multipliers.
James Hardie technical literature: fiber cement board-and-batten and smooth lap specifications.
Equitone (Etex Group): Tectiva Natura Grey fiber cement panel installation guide.
Drexel Metals & McElroy Metal: 24-gauge standing seam metal roof specifications and color libraries.
Marvin Windows & Doors: Modern series aluminum-clad window performance and sizing data.
The Layered Homes editorial notes: large-format two-story farmhouse and multigenerational plan reviews, with cost estimates for the Charleston, Mount Pleasant, Franklin, Nashville, Asheville, Raleigh-Durham, and Austin markets, 2026.

Who Plan 150019HRP Suits

Plan 150019HRP is one of the more genuinely thoughtful large-format farmhouse plans in this size range. The dual-office layout, the main-floor guest suite with its own bath, and the laundry and mudroom grouped at the garage entry all solve real problems for the households that need this much square footage. The watch-outs (acoustic coupling through the two-story volume, HVAC zoning complexity, and the genuine lot-size requirement) are all solvable with planning, but none of them are optional considerations.

For comparison with other large farmhouse and porch-heavy plans, four reviews cover nearby ground: the 3,877 sq ft farmhouse with a different indoor-outdoor emphasis, the 3,127 sq ft single-story with extensive zoned porches, a 4-bedroom country farmhouse that uses the wrap-around porch differently, and a smaller-footprint two-story with genuine expansion potential.

The Layered Homes editorial team

By The Layered Homes

House Plans Desk

The Layered Homes editorial team

The House Plans Desk reviews published house plans from the designer’s drawings and listing: how the layout lives, what works, what to watch, and what it is likely to cost to build in 2026.

Functional Review: A 4,384 Sq Ft New American Farmhouse with 6 Bedrooms and Two-Story Living (Plan 150019HRP)

What's Inside This Review