We read a lot of modern farmhouse plans in the 2,700–2,900 sq ft range, and most of them collapse into one of two mistakes: either they squeeze four bedrooms onto a single story by making every room feel tight, or they push the kid rooms so far from the master that the house stops functioning as a family home. Plan 51773HZ does neither. It's a split-bedroom single-story at 2,742 heated sq ft with a bonus room over the garage that can quietly add a fifth bedroom, and the foundation and garage options give you four different versions of the same plan depending on your lot. Below is how we would talk a Charleston or Mount Pleasant buyer through this plan: what to flag, what to stop worrying about, and which facade direction we would actually push for.
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Main Level
The main level is a classic split-bedroom single-story: master wing on the left, three secondary bedrooms on the right, shared living stacked down the center. The great room, kitchen, and dining area open to each other as a single volume, anchored by a 24-foot-10-inch by 14-foot covered rear porch centered behind the great room. The great room is drawn with a 12-foot ceiling, and the dining room and foyer rise to 11 feet with a coffered dining ceiling, which is what gives a 2,742 sq ft home the feel of something considerably larger when you step through the front door.
The master suite is where this plan quietly pulls ahead of most of its competitors. The walk-in closet connects directly into the laundry room, not through a hallway, not through a door into the master bath and then into laundry, but a genuine one-door transition from closet to laundry. If you've never lived with that detail, you don't realize how much friction it removes from a household until someone builds it for you. The master bath sits between the closet and the bedroom with a soaking tub, a walk-in shower with a seat, and a long double vanity as drawn. The master bedroom itself gets a vaulted ceiling, rear-facing windows, and enough room to fit a king with nightstands and a reading chair without crowding the circulation path to the bath.
On the right wing, the three secondary bedrooms are arranged so that Bedroom 2 gets its own private full bath (genuinely useful for a teenage child or a long-term guest), while Bedrooms 3 and 4 share Bath 2, a hall bath with a double vanity and a separate compartment for the toilet and tub/shower. That split is the small detail that makes the shared bath livable for two siblings: each kid gets a sink, and the toilet and tub sit behind their own door. It's the shared-bath configuration we would actually recommend.
Two storage-driven details round out the main level. First, there's a dedicated butler's pantry connecting the kitchen to the dining side of the plan, a real one, with countertop depth for a coffee station or a dedicated beverage zone, not a pass-through. Second, a walk-in pantry sits off the kitchen opposite the butler's pantry, giving the plan genuine two-zone food storage (dry pantry + bar/prep) rather than trying to make one space do both jobs. The mudroom has built-in lockers and sits right off the garage entry so wet coats, school backpacks, and muddy boots never reach the main hallway.
Bonus Room & Foundation Options
Bonus Level: Optional Fifth Bedroom / Office / Media Room
Basement Stair Option
3-Car Side-Entry Garage Option
3-Car Side-Entry Bonus Option
3-Car Side-Entry Garage with Basement Option
Lower Level: Walkout Foundation Option
The bonus room over the garage is where the plan earns the "4–5 bedroom" label. As drawn, it includes a closet and an optional full bath, which means it can legally and practically function as a fifth bedroom on its own HVAC zone. The staircase rises from the mudroom area, a quiet placement that lets the upstairs space function as an office or teen suite without running traffic through the public rooms. For a Charleston or Atlanta household with an aging parent possibly moving in later, this is the single most important flexibility feature in the plan.
The foundation and garage options give you four variants of the same core plan. The standard two-car garage is already side-entry and gives the most compact footprint. The three-car side-entry option stretches the garage from 23 feet to 35 feet 10 inches deep, so it adds depth rather than width, which matters most on shallow suburban lots. The basement stair option adds a full basement (worth $80k to $160k depending on excavation conditions in your soil type), and the walkout foundation option is specifically drawn for a lot that slopes away from the street, which is common in rolling Southeastern terrain: Nashville hillsides, parts of Greenville, Mountain Brook outside Birmingham. If you're building on a flat suburban lot in Savannah or Summerville, the slab version is the right choice. If you're building on a slope anywhere in the Appalachian foothills, the walkout variant turns a problem lot into a genuine two-story family home for a fraction of what a custom hillside design would cost.
Exterior & Curb Appeal
The stock exterior is a textbook modern farmhouse: white board-and-batten siding, dark window frames, a standing-seam metal roof accent over the front porch, and timber porch columns that introduce warmth against the crisp white field. The gabled composition is balanced rather than monumental; no one gable dominates the facade, which is a good sign of a plan drawn by someone paying attention to proportion rather than one trying to impress with scale. The covered front porch spans the central section of the facade, between the two gabled wings, and reads as a genuine outdoor room rather than a decorative overhang. The side-entry garage placement is what lets this plan present such a clean street elevation; a front-loaded garage would ruin the composition and should be avoided if your lot allows the side-entry configuration.
What Actually Works in This Plan
The single most useful detail in the whole plan is the connection from the master closet to the laundry. Anyone who has carried a basket down a hallway will understand, the first time they live with it, why it is worth paying for. The split-bedroom layout also respects both wings: the master and the kids are genuinely separated without feeling as if they live in different houses, and the central great room anchors the plan and works.
The bonus room was planned, not grafted on. Its stair rises from the mudroom, it has its own closet and an optional bath, and its HVAC can be zoned independently, which makes it a real fifth-bedroom option and not a marketing line. The secondary bedrooms use a two-bath strategy: a private ensuite for one (a teen, a long-term guest or a college-age child) and a shared hall bath with a double vanity and a separate toilet and tub compartment for the other two. The double vanity is what makes it work, since a single shared sink is where most shared baths fail.
The kitchen gets a two-zone pantry, with a butler's pantry for prep and beverages and a walk-in pantry for dry storage. That is a useful separation of functions instead of one overstuffed utility closet. The plan is also flexible on the ground: four foundation and garage variants come from one core plan (slab, basement, walkout, 2-car and 3-car side-entry), a range that is rare in a single published plan. At the back, a 24-foot-10-inch by 14-foot covered porch is properly sized and aligned to the great room, exactly where you want it for indoor-outdoor flow on a Southeastern site.
Points to Flag Before You Buy
Lot size is the first check. Both garage versions load from the side, so plan on 85–95 ft of effective frontage to fit the driveway turn; the 3-car version adds depth rather than width, so a shallow lot is its real limit. The single-story footprint also eats frontage. At 2,742 sq ft on one level, the house is roughly 55–62 ft wide and 60–65 ft deep in the 2-car version, with the 3-car versions printed deeper (72 ft 6 in with the basement stair), so urban infill lots under 70 ft wide will not work without modification. Confirm your lot width and check the zoning setbacks early.
Finishing the bonus room is a real line item. It adds $35k to $70k for the HVAC extension, insulation, drywall, flooring, trim, electrical and optional bath plumbing. Budget it from day one if you know you will use the room, or leave it unfinished and add the cost in Year 3 or 4 when you need the space. There is also no main-floor office by default: the plan has four main-floor bedrooms but no dedicated work-from-home room, so if remote work is a permanent part of your life, convert Bedroom 2 or the bonus room into the office at the outset rather than after the build.
The open, 12-foot great room carries sound. Without wool rugs, layered drapery and ideally acoustic panels hidden behind the ceiling planks, conversation in the kitchen will echo down the master hallway, so plan the soft goods for this volume as part of the architecture, not as a Year 2 afterthought. Finally, look at the stone or veneer detailing where it is shown. If your elevation uses manufactured stone accents, specify a real thin-set veneer or a high-grade manufactured product with band-course detailing, because the cheapest manufactured stone shows its seams after 12–18 years in humid Southeast climates and dates the whole home.
Eight Facade Directions for This Plan
The eight renderings below are design proposals from our desk, not alternate elevations offered by the plan's designer. Each keeps the stock footprint, rooflines and window openings and changes only the cladding, roofing, porch details and planting, which makes it easy to see how far a material choice alone can move the character of one floor plan.
1. Rustic Log & Stone
A mountain or wooded-lot direction. Log or hand-hewn plank siding on the main body, prominent rough fieldstone at the foundation and porch piers, a dark shingle roof, a fieldstone chimney, and exposed timber trusses supporting the front porch. We would specify a flagstone walk rather than the stock concrete path, with rhododendrons, ferns and native evergreens framing the entry. This reads best on a wooded lot in the Blue Ridge, Smokies, or any wooded acreage in Virginia or North Georgia, a setting where the house can sit down into the landscape rather than stand in front of it.
2. Industrial Modern
Weathered Corten steel vertical siding on the main gable, board-formed concrete or concrete-panel walls on the lower sections, a dark standing-seam metal roof, and matte-black structural steel porch columns. Landscaping pulls back to gravel beds, steel planters with agaves and ornamental grasses, and concrete-plank pavers rather than traditional foundation plantings. This is a bold direction; we would propose it for a homeowner with a contemporary art collection, a transitional suburban lot where they want the house to stand out from its neighbors, or an architecture-minded buyer who wants the home to read as a designed object rather than a traditional residence.
3. Coastal Shingle
Naturally weathered grey cedar shakes cover every wall here, set off by crisp white trim, a pale grey shingle roof and a front door painted a soft sea-glass blue. We would swap the stained timber porch columns for square fiberglass posts painted white, as the rendering shows, because they hold up far better in salt air. A crushed-shell walk runs straight to the porch steps between drifts of lavender and ornamental grasses, with shrub roses at the corners and mature live oaks left to shade the roof; hydrangeas or palmetto accents suit the same palette where the lot allows. We would push this one for anyone building in Mount Pleasant, Sullivan's Island, or the Naples / Vero Beach coast, where it looks like it belongs instead of like an import.
4. European Stone & Timber Cottage
A stone-and-timber cottage direction: fieldstone across the main body, a slate or slate-tile roof, weathered wood shake siding on the gable accents, and heavy exposed timber framing at the porch. Terracotta tile walk, mature olive trees (in zones 8 or warmer) or European hornbeam where olives won't survive, lavender drifts, and hydrangeas against the stone. This reads as timeless rather than trendy and ages well. We would propose it for a North Carolina foothills site, a Virginia horse-country property, or a long-tenure owner who wants the home to look fifty years old in twenty.
5. Modern Mediterranean
Dark vertical shiplap or thermally-modified wood siding on the main body, a warm-brown S-tile or flat terracotta roof, and limestone or light stone veneer arches at the porch; the arches are the move that pulls the plan toward Mediterranean without losing the farmhouse silhouette. Minimalist strip lighting at the eaves, gravel beds, olive trees, agaves, and a concrete paver walk. This direction is for a homeowner in Naples, Sarasota, or a warm-climate Charleston suburb who wants a modern home but doesn't want the hard-edged steel look. It's the warmer cousin of the Industrial Modern direction above.
6. Japandi Minimalist
Shou sugi ban charred-cedar siding on the main body, light-natural cedar accents at the porch soffits and gable undersides, a dark shingle roof, and restrained minimalist lighting. Landscaping: a Zen-style raked gravel bed as the front foundation planting, moss-island accents, a line of large flat stepping stones for the walk, a single Japanese maple as a specimen tree, and black bamboo as a privacy screen along one side. This is the quietest direction on this list; we would propose it for a creative professional, a second home used for weekend retreats, or someone coming out of a minimalist urban loft who wants to keep that visual vocabulary.
7. Spanish Colonial Revival
Smooth-troweled stucco walls in a warm off-white, a red barrel-tile roof, stone columns with deep arches at the porch, dark-stained wood window frames, and a substantial carved or paneled front door. Landscaping: patterned terracotta or saltillo-tile path, bougainvillea on one side, a pair of olive trees at the front corners, and Mediterranean herbs (rosemary, thyme, lavender) rather than traditional lawn. This direction works only in warm zones: Naples, Sarasota, Charleston in a mild winter pocket, central Texas. North of zone 8a the tile roof and stucco need climate-specific detailing that this plan isn't drawn for.
8. Warm Traditional Farmhouse
For the stock plan and for most Charleston or Mount Pleasant lots, we would propose this charcoal board-and-batten facade. The rendering turns the board-and-batten a deep charcoal from ground to ridge, keeps the black window frames, and lets the warmth come from everything around that dark field: stained cedar porch columns and brackets, a dark bronze metal roof over the porch and the side window bay, and a brick base and steps at the porch floor. Warm light from the windows does the rest at dusk. Landscaping stays traditional, with white hydrangeas, boxwood and ornamental grasses along the foundation and a gravel drive sweeping past the front lawn. It reads rooted and Southern without chasing any trend.
Regional Fit for the Southeast
The split-bedroom single-story footprint is well-suited to Southeastern suburbs and rural lots, the same regional profile where the modern farmhouse vocabulary reads as native rather than transplanted. In Charleston's surrounding communities (Mount Pleasant, Summerville, Goose Creek), the slab variant with the covered rear porch is the right configuration for the hot-humid coastal climate; the walkout variant doesn't apply to flat coastal topography. In Atlanta's north suburbs (Milton, Alpharetta, Cumming), the sloped-lot walkout variant can turn a challenging hillside into a legal basement plus the bonus room upstairs, giving you three functional levels for the price of one. In the Nashville area and the rolling Tennessee foothills, the walkout is similarly valuable. In the Florida Gulf coast markets (Naples, Sarasota, Fort Myers), the slab plus 3-car garage variant with the Spanish Colonial Revival or Modern Mediterranean facade is the direction we would push; the farmhouse silhouette reads well in those markets when the material palette is warmed up. Before you buy the plan, walk the site with a builder who's done modern farmhouses in your specific municipality. Setbacks, impact fees, and stormwater requirements vary enormously between Charleston County, Pinellas County, and rural piedmont North Carolina, and what looks like the same $460k build on paper can differ by $60k once local permitting is factored in.
Realistic Build Cost Estimate (Southeast, 2025–2026)
These figures are estimated ranges for comparable 2,700–2,900 sq ft single-story modern farmhouse builds in the Carolinas, Georgia, Tennessee, and Florida panhandle over the last 18 months. Local labor rates and material supply can swing these numbers by ±10–15%.
The plan and permit set from the designer costs $1,800–$3,200, with the local engineer's site-specific upcharges extra. The foundation is the first big fork: a slab runs $28k to $42k, while a walkout or basement runs $80k to $160k depending on excavation and soil. Framing and dry-in add $95k to $130k, and the mechanical, electrical and plumbing rough-in adds $55k to $78k.
The exterior (siding, roof, windows and porches) costs $95k to $135k depending on the facade direction you choose. Interior finishes, meaning flooring, trim, cabinetry, paint and tile, are the largest line at $110k to $180k, and kitchen and bath fixtures and appliances add $35k to $65k. If you finish the bonus room from day one, add $35k to $70k. Landscaping, the driveway and final grade come to $18k to $45k.
In total, the slab variant with a 2-car garage and the bonus room left unfinished comes to $395k to $540k turnkey. The walkout variant with a 3-car garage and the bonus room finished comes to $560k to $780k.
These figures exclude land cost, well/septic (if rural), site-specific stormwater mitigation, and any custom structural engineering required for steep slopes or coastal flood zones.
Practical Tips Before You Commit
Confirm the garage option when you buy the plan. Changing from the 2-car side-entry to the 3-car side-entry garage after framing has started is expensive and often means restamping the foundation drawings, so decide before you buy. In the same spirit, frame for the bonus-room bath even if you will not finish it right away. Running the plumbing vent stack and rough drain during initial framing costs roughly $800–$1,500, against $8,000–$14,000 to retrofit later, which makes it the cheapest insurance policy in the entire build.
Spec the master closet-to-laundry door properly. A pocket door is the right answer here, since a swinging door eats closet space, so confirm with your builder at rough framing that the pocket frame is going in. Acoustic treatment for the 12-foot great room starts at the ceiling: specify tongue-and-groove plank ceilings over an acoustic underlayment (QuietRock or similar) in place of a sprayed acoustic treatment. It reads traditional, solves the acoustics and adds roughly $4–$7 per sq ft of ceiling area.
Carry a contingency of 8–12% over your hard-cost estimate. In the Southeast through 2026, supply-chain gaps on windows, cabinetry and certain roofing materials can add 60–90 days and 5–8% to a build, so plan for that possibility rather than hope it will not happen. Bring in the landscape designer during framing, not after move-in. The facade direction you pick drives the hardscape materials, and the hardscape drives the grading; grading during framing is cheap, and regrading after a slab is poured is the most expensive small task on a build.
Reader Questions
Is 2,742 sq ft really enough for a 4- or 5-bedroom family?
Yes, because the plan is single-story with the bonus room genuinely separated. Four main-floor bedrooms plus the bonus room (as an office by day and a teen or guest bedroom when needed) is functionally equivalent to a 3,000–3,200 sq ft two-story with an office. The reason it works is that the square footage isn't being spent on a two-story foyer or duplicate circulation; every usable room is on the main level, and the bonus is pure bonus. For a family of four with an aging parent who visits extended stays, this plan uses its square footage efficiently without feeling tight.
How wide a lot does the side-entry 3-car variant need?
Plan on 85–95 ft of effective buildable frontage after setbacks. The side-entry 3-car variant adds depth rather than width, and like the side-entry 2-car version it needs a full driveway turnaround zone on that side of the house. If your lot is 75 ft or narrower, the side approach gets tight in either version, so review the driveway with the designer before you buy. If your lot is 100+ ft wide, you have the room to do either variant well.
Can this plan be bought directly from The Layered Homes?
No. The Layered Homes does not design or sell house plans. Plan 51773HZ is licensed and sold through the Architectural Designs marketplace, and the "View Full Plan Details & Pricing" button above opens that official listing. Because the site has an affiliate relationship with Architectural Designs, a purchase made through that link may earn us a small commission at no extra cost to you. What we offer is the review itself: the walk-through of the floor plan, the points to flag and the facade ideas on this page.
Does the bonus room come with its own HVAC?
Not in the base plan. You'll need to discuss HVAC zoning with your mechanical sub during design. The two sensible options are: (1) extend the main HVAC system and add a dedicated zone with its own thermostat (roughly $3,000–$5,500 additional during initial install), or (2) install a dedicated mini-split for the bonus room only (roughly $4,500–$7,000 for a 12k to 18k BTU unit installed). Option 2 is usually better because the bonus room's heat and cooling load differs significantly from the main floor, and a shared zone tends to run too cold in winter and too warm in summer up there.
What's the total build cost range for this plan in the Southeast?
For a turnkey build in the Carolinas, Georgia, Tennessee, or Florida panhandle, expect $395k to $540k on the slab variant with a 2-car garage and an unfinished bonus room, and $560k to $780k on the walkout variant with a 3-car side-entry garage and the bonus room finished. Those ranges assume production-level finishes in the lower half and semi-custom finishes (real hardwood floors, stone countertops, upgraded trim, custom cabinetry) in the upper half. Add $90k to $180k if you're targeting high-end custom finishes throughout. Land is always separate.
Will this plan work on a sloped lot?
Yes. The walkout foundation option is specifically drawn for a lot that slopes away from the street. The lower level becomes a full walkout basement with natural light on the downhill side, which gives you an additional 1,400–1,600 sq ft of conditioned (or semi-conditioned) space for roughly $80k to $160k on top of the slab variant cost. For a sloping lot in North Georgia, east Tennessee, the Blue Ridge, or the Carolina foothills, this is the single best configuration of the plan: it solves a problem site and delivers a genuine second story of usable space.
What facade direction would you push for a Charleston build?
For a Mount Pleasant or Daniel Island lot, the Coastal Shingle direction almost every time: light cedar shakes, crushed-shell walk, lavender, live oaks. For a Charleston proper historic-area lot, the Warm Traditional Farmhouse direction with its charcoal board-and-batten, stained cedar columns and brick porch base. For a Kiawah or Seabrook oceanfront lot with serious salt exposure, a modified Coastal Shingle with all-fiberglass trim (no real wood), 304-grade stainless hardware, and a Kynar-coated metal roof. The stock white board-and-batten with black frames is fine but reads as the default rather than the direction; it's what most of the neighborhood is already doing.
Sources & References
- Architectural Designs, plan listing 51773HZ: official plan specifications, square footage, foundation and garage options.
- The Layered Homes editorial notes on modern farmhouse plans for Charleston, Mount Pleasant, Nashville, Atlanta, Naples, and the Carolina foothills (2026), including structural and finish-schedule considerations for comparable 2,700–2,900 sq ft single-story plans.
- International Residential Code (IRC) 2021: minimum ceiling heights, bedroom egress window requirements, and stair requirements referenced in the bonus-room discussion.
- ASHRAE Handbook, HVAC Applications, 2023: zoning guidelines for bonus rooms over unconditioned garage spaces.
- National Association of Home Builders, Cost of Constructing a Home reports (2023, 2024): baseline cost breakdowns used for the estimates above.
- Benjamin Moore and Sherwin-Williams color specification guides: White Dove, Simply White, and related farmhouse exterior white references.
- Brick Industry Association Technical Notes 28 and 28B: manufactured stone veneer performance and detailing referenced in the facade cautions.
Our Verdict on Plan 51773HZ
Plan 51773HZ is one of the cleanest split-bedroom single-story modern farmhouses we have reviewed in the 2,700–2,900 sq ft range. The master closet-to-laundry detail, the real butler's pantry plus walk-in pantry combination, and the bonus-room-as-fifth-bedroom flexibility are all features that matter more in real life than they do on a rendering. The four foundation and garage variants mean one plan can fit a flat Savannah suburban lot, a steep Blue Ridge hillside, or a wide Nashville equestrian parcel equally well. Our honest flags are the lot needed for the side-entry garage, the real cost of finishing the bonus room, and the need for genuine acoustic planning in the open, 12-foot great room. If those three items work for your site, budget, and family, this is a plan worth putting on a very short list.
If you're comparing plans in this size range, readers often pull up the 2,866 sq ft split-bedroom modern farmhouse analysis and the flexible 2,743 sq ft 3–6 bedroom design alongside this one; both handle the single-story split-bedroom geometry from slightly different angles. For the bonus-room-over-garage angle specifically, the functional modern farmhouse with versatile bonus space review walks through a tighter footprint using the same strategy, and the single-story modern farmhouse with versatile bonus space review runs the comparison from a more compact total square footage perspective worth benchmarking against 51773HZ.
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