I've reviewed a lot of single-story modern farmhouse plans in the 1,900–2,100 sq ft range, and most of them make the same compromise — they either deliver a proper primary suite with a closet-to-laundry pass-through, or they deliver a flexible bonus room over the garage, but rarely both. Plan 51772HZ is one of the exceptions. At 1,988 sq ft on the main level with an optional bonus room that can carry a fourth bedroom, a home office, or a media room, it's genuinely a plan that grows with the household rather than locking it into a single use case. There are real trade-offs — the two secondary bedrooms share a Jack-and-Jill bath, and the bonus-room stair lands uncomfortably close to the primary suite entry — but as a mid-market Southeastern farmhouse in this size class, it holds up to a close second reading. Below is what I noticed working through the drawings and renderings as a stylist, not as the seller of the plan.
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View Plan #51772HZ on Architectural DesignsContents
- Floor Plan Analysis
- Exterior: Materials, Proportions, and the Rear Porch Program
- What This Plan Gets Right
- Points to Consider Before You Buy
- Facade Variations — Which One Fits Your Site
- Who This Plan Is For, and Who It Isn't
- What It Costs to Build — Regional Estimates
- Frequently Asked Questions
- Sources & Further Reading
- The Short Verdict
Floor Plan Analysis
Main Level















The rendered elevation does three things correctly that most 2,000 sq ft farmhouse plans do wrong. First, the board-and-batten runs vertically over a proper brick pier base rather than a painted-wood skirt — that one material break is what separates a real farmhouse elevation from a builder-grade vinyl version, and it reads correctly here. Second, the front-porch roof is a standing-seam metal segment, not a continuation of the asphalt-shingle main roof — a small move that gives the porch the visual weight it needs. Third, the gable proportions are restrained; no oversized decorative timber brackets or faux shutters. The whole composition reads as confident rather than costume.
The rear porch is unusually generous for this square footage. It spans most of the width of the great-room wall, has enough depth for both a dining table and a separate seating zone, and can accommodate an optional outdoor kitchen on the long run. If you build this plan anywhere between Charleston and Nashville, that rear porch will quietly become the most-used room in the house from April through October. Do not value-engineer the metal porch roof out of the spec — an asphalt-shingle substitution flattens the whole composition and is the single change most likely to come back as regret.
The side-load garage is the right call for curb appeal, but it drives the real lot-width requirement. Expect to need a minimum of about 90 feet of buildable width to get a comfortable driveway turn. On an infill lot narrower than that, use the front-load garage alternate drawing; you'll lose some of the facade cleanliness but keep the rest of the plan intact.
What This Plan Gets Right
- Primary closet passes directly into the laundry. The single best daily-workflow detail in any plan in this size class. Saves roughly forty steps per load and is absent from most catalogue plans under 2,200 sq ft.
- Genuine walk-in pantry. Not a reach-in cupboard with a taller door — a real walk-in with shelf depth and floor space. A working kitchen needs it, and most plans at this footprint skip it.
- Flexible bonus room over the garage. Unfinished on delivery, which is the right call — it lets the buyer choose whether to finish it as a bedroom, office, or media room without paying for a use case they don't want.
- Three-option lot flexibility. Side-load OR front-load garage, with OR without basement. A single plan that works on flat Southeastern lots, sloped mountain lots, and narrower infill parcels.
- Proper split-bedroom separation. The primary suite is genuinely isolated from the secondary wing, with the great room as the acoustic buffer. Sound transmission is minimal.
- Mudroom with real lockers, not a tacked-on bench. The transition from the side-load garage gets its own proper room with storage — a small detail that changes the daily use of the home.
- Vaulted great room with a real outdoor connection. Sliding glass to the rear porch, generous glass on the rear wall, and the vaulted ceiling carrying the volume. The room reads much larger than its actual footprint.
Points to Consider Before You Buy
- Jack-and-Jill bath between the two secondary bedrooms. Works for two children under ten. Becomes a morning coordination problem for two school-age kids who both need the bath at 7:15am, and actively difficult with an overnight guest occupying one of the bedrooms. If the household has a guest room usage pattern, the shared J&J is the weakest point in the plan.
- Bonus-room stair lands near the primary suite entry. This is the detail that would give me the most pause. If the bonus room becomes a teenager's bedroom or a media room, foot traffic up and down the stair passes within about eight feet of the primary suite door. Plan on solid-core doors at the suite entry and consider a rug at the stair base to dampen footfall.
- Vaulted great room has HVAC implications. The volume is generous but it's also a thermal load. Expect to upsize from a standard 3-ton system and specify a high return near the gable peak if you want the room to hold temperature in August. This is a conversation to have with your HVAC contractor early, not during framing.
- Side-load garage needs lot width. Minimum 90 feet of buildable width for a comfortable driveway turn. Below that, use the front-load alternate drawing.
- No dedicated home office on the main level. The bonus room can carry that role, but putting the office upstairs means every work-from-home day is a commute. If a main-floor office is non-negotiable, this isn't your plan — consider a larger footprint that can absorb one.
- The metal porch roof is a spec the builder will try to value-engineer out. Don't let them. The asphalt-shingle substitution is a $4,000–$7,000 savings that costs the whole composition.
Facade Variations — Which One Fits Your Site
These are my own stylist proposals for the plan, not options sold by Architectural Designs. If a direction below resonates, bring it to your builder as a starting brief rather than a catalogue selection.

Coastal Cottage
Light cedar shake in place of the board-and-batten, crisp white trim, light-metal roof, simple porch columns, and a Low Country planting palette of palmetto, agave, and hydrangea. The version I'd build on a Mount Pleasant, Kiawah, or Gulf Coast lot. The cedar shake ages handsomely under salt air; the metal roof is the right answer in any climate that sees hurricane season. Avoid if the lot is more than ten miles inland — the coastal vocabulary reads forced without the water.

Modern Rustic
Dark vertical siding contrasted against dark stone veneer accents, warm stained-timber columns, and a restrained drought-tolerant planting scheme. This is the version for a semi-rural Nashville, Franklin TN, or Asheville lot where the house needs to sit confidently against a wooded or rolling backdrop. The dark envelope handles those settings better than the default white board-and-batten. Flag: run a cool-roof or ridge ventilation spec — dark siding in Southeastern summer runs hot.

Tropical Low Country
Light shake siding with darker wood columns and trim, the roofline kept in standing-seam metal, and a heavily tropical planting list — palms, elephant ear, Confederate jasmine. The variation for a 30A, Savannah waterfront, or Naples FL lot. The dark timber against the light envelope reads as a Caribbean detail rather than a South Carolina one, which is the intent. Don't build this in Asheville or anywhere above the fall line; the palms don't survive it.

Stark Monochrome
Dark siding, black metal roof, stark white trim, and a formal boxwood planting palette. The high-contrast version for clients who want the farmhouse footprint but not the farmhouse vocabulary. Works on a newer Charleston suburb lot or a manicured Atlanta intown parcel. Maintenance is higher than the default — the black roof shows every pollen season, and the white trim needs washing twice a year in Southern humidity.

Southwest Desert
Terracotta stucco over the main walls, dark-stained timber columns, rusted-patina metal roof, xeriscape planting. The version for a Phoenix, Tucson, or Santa Fe lot. One caution: the brick pier bases of the original elevation don't translate to stucco — a builder working this variation should simplify them into a stucco kick-plate rather than fighting the material language.

Black-and-White Craftsman
Black vertical siding paired with white gable trim and a dark shingle roof, a white picket fence, and an intentionally lawn-heavy front yard. The variation for a client who wants the plan to read as a classic Americana home rather than a contemporary farmhouse. Best fit: an older Nashville, Franklin, or Charlotte suburb where the neighbors' homes lean traditional and a modern-forward elevation would read as out of character.

Adobe Ranch
A quieter version of the Southwest Desert variation — terracotta stucco, dark timber, standing-seam metal roof, but with a simpler planting list leaning on agave and ornamental grasses rather than full xeriscape. Better fit for a prairie-edge Texas or Oklahoma lot than a deep-desert parcel. The rustic warmth holds up well against open-sky sites.

Industrial Farmhouse
Grey vertical siding with concrete block accents and exposed metal beam details, roof kept in standing seam. The most departure-from-the-original of the eight variations. Right choice for an Austin or Denver lot with a client who likes the plan but wants something that reads closer to contemporary than traditional. I'd use this sparingly — the detailing is heavier and the concrete-block accents need skilled execution to avoid reading as unfinished.
Who This Plan Is For, and Who It Isn't
A strong fit for: empty-nesters right-sizing into a single-story home while keeping bonus space for visiting grandchildren; couples with one or two young children who want all bedrooms on one level now and flexibility for a fourth bedroom or office later; downsizers from a two-story who still want vaulted volume in the main living area; any buyer on a lot between 90 and 120 feet wide in the Southeast where the rear porch program will be used eight months a year.
A weaker fit for: households with two teenagers who would share the Jack-and-Jill bath; buyers who need a dedicated main-level home office plus a guest room plus a children's room (the main level is three-bedroom by design); narrower infill lots under 80 feet wide, even with the front-load garage alternate; climate zones above roughly 6,500 heating degree days, where the vaulted great-room volume becomes an operating-cost liability rather than a comfort feature.
If you're in the last group and want a smaller-footprint plan with a similar vaulted program, my review of the 1,677 sq ft modern farmhouse with vaulted great room scales the same vocabulary down to a more forgiving footprint. If you need more square footage and a separate hall bath for the secondary bedrooms, the versatile 4-bedroom country farmhouse with wrap-around porches is the step up.
What It Costs to Build — Regional Estimates
The numbers below are the turnkey ranges I've actually seen quoted on 1,900–2,100 sq ft single-story modern farmhouse builds across the Southeast in 2024–2026. They're pulled from a mix of bids my clients received, builder conversations at trade events, and the 2024 NAHB Cost of Constructing a Home baseline cross-checked against regional multipliers. Land, sitework, septic, and well are excluded unless noted.
Southeast Median — Plan 51772HZ $465,000 Range: $360,000 – $560,000 turnkeyMid-spec build with the metal porch roof kept, bonus room left unfinished at rough-in, and standard-grade interior finishes. Move up or down from here depending on finish level, submarket, and the decisions in the table below.
| Submarket | Builder-Grade | Mid-Spec (As Drawn) | Upgraded Finish | Main Cost Driver |
|---|---|---|---|---|
| Greenville SC / Upstate | $340,000 – $395,000 | $395,000 – $475,000 | $475,000 – $565,000 | Labor still below Charleston; predictable framing crews |
| Charlotte / Triangle NC | $360,000 – $415,000 | $415,000 – $500,000 | $500,000 – $600,000 | Skilled-trade demand is the squeeze, not materials |
| Atlanta metro (outside OTP) | $355,000 – $415,000 | $415,000 – $500,000 | $500,000 – $605,000 | Wide bid spread — get three numbers, not two |
| Nashville / Franklin TN | $405,000 – $465,000 | $465,000 – $555,000 | $555,000 – $665,000 | Lot prep and permit cycle both expensive |
| Charleston / Mt Pleasant SC | $420,000 – $480,000 | $480,000 – $570,000 | $570,000 – $685,000 | Coastal code (hurricane strap, flood elevation) |
| Asheville NC | $430,000 – $495,000 | $495,000 – $585,000 | $585,000 – $695,000 | Sloped sites add foundation & excavation cost |
| All figures are 2024–2026 turnkey estimates excluding land, septic, well, and long driveways. Always verify against three local written bids before committing. | ||||
Line Items Worth Budgeting Separately
- Finish the bonus room later, not now. Rough-in during the main build adds $4,500–$7,500 (insulation, wiring chase, HVAC stub, stair finish). Full finish-out two to three years later runs $22,000–$38,000 depending on whether you add a fourth bath up there.
- Keep the standing-seam metal porch roof. Substituting asphalt shingles saves $4,000–$7,000 and flattens the composition. The single value-engineering cut most likely to come back as regret.
- Vaulted great-room HVAC. Plan for a 4-ton system minimum with a high return at the gable peak rather than a stock 3-ton config. Expect an additional $3,500–$5,500 versus the builder-default system.
- Walk-out basement (sloped lots only). Adds $65,000–$110,000 but delivers 1,400+ conditioned sq ft at roughly half the per-square-foot cost of the main level. Worth it when the slope is there; wasteful when it isn't.
- Coastal submarkets add 7–12% across the board. Hurricane strapping, impact windows (required within 1 mile of the coast in SC/NC), and elevated foundations. Not optional, and not in the base builder quote — ask for the coastal package explicitly.
- Plan set + modification package: $1,800 for the plan itself, $2,000–$6,000 if you commission modifications (mirroring, wall moves, truss changes). Cheapest design dollars you will ever spend — don't cut corners on the drawing set.
These ranges decay — they're accurate as of early 2026 and move with lumber, labor, and permit inflation. Before you sign, get at least three written bids from licensed local builders with this plan set in hand, and compare line-item by line-item, not just the bottom-line number.
Frequently Asked Questions
How much does Plan 51772HZ cost to build in the Southeast?
Rough turnkey ranges I've seen in 2024–2026 for this size and spec in the Carolinas, Georgia, and Tennessee: $360,000–$440,000 with builder-grade finishes and the bonus room left unfinished, $440,000–$540,000 with the metal porch roof, finished bonus room, and the stone-and-brick detailing as drawn, and $540,000+ in the more expensive submarkets like Charleston peninsula, Nashville core, and Asheville. Those numbers exclude land and sitework. Always get written bids from at least three local builders before committing.
What lot size does this plan actually need?
The main-level footprint is roughly 72 feet wide at the widest point, but the side-load garage drives the real requirement. Plan on a minimum of 90 feet of buildable width for a comfortable driveway turn, with 110+ preferable for a relaxed motor court. If the lot is 70–90 feet, use the front-load garage alternate drawing instead. Depth requirement is 80–110 feet to accommodate the house plus the generous rear porch.
Is the bonus room above the garage worth finishing up-front?
Usually no, at least not until the household use case is clear. Framing and insulating the bonus room during the main build costs $18,000–$32,000 depending on finish level. Finishing it two or three years later, once you know whether it's a teenager's bedroom, a dedicated home office, or a media room, costs about 20–30% more but produces a space that matches the actual use. Leave it unfinished unless you have a specific use case on day one.
Is 1,988 sq ft enough for a family of four?
Comfortably, for a family with two children under twelve, especially if the bonus room is finished as a fourth bedroom or office. Tight with two teenagers because of the shared Jack-and-Jill bath — that's the real constraint, not the square footage. If the household projects two teenage years in the same home, budget for either finishing the bonus room as a third secondary bedroom with a small adjacent bath, or consider a larger plan with separate secondary baths.
Can this plan be built without the basement?
Yes. The primary drawing is slab-on-grade or crawlspace. The basement is strictly optional and appears as an alternate main-level drawing that relocates the bonus-room stair. On a flat Southeastern lot, skip the basement; on a sloped lot, the basement walk-out option is usually the better call because it adds conditioned square footage for roughly half the per-square-foot cost of the main level.
Will the vaulted great room cause acoustic problems?
Predictably louder than a flat-ceiling equivalent, yes. The mitigation is textile — a large wool rug under the seating group, heavy lined curtains on the rear slider wall, an upholstered sectional rather than leather, and a substantial art piece over the fireplace rather than an open mantel. Plan for those from day one; don't discover the echo at move-in.
Does the plan price include modifications?
No. Architectural Designs sells the plan as drawn, and the three alternate drawings (front-load garage, basement stair, unfinished basement) are included at no additional charge. Custom modifications — mirroring the plan, moving a wall, changing truss spans, modifying window sizes — are a separate service and are quoted per change. Budget $2,000–$6,000 for a modification package if you know you'll want changes before construction.
Sources & Further Reading
- Architectural Designs, Plan 51772HZ — Exclusive Farmhouse with Bonus Room and Side-Load Garage, 1,988 sq ft (primary listing and construction drawing set).
- International Residential Code (IRC), 2021 edition — Section R303 (minimum room dimensions) and R310 (emergency egress from sleeping rooms), relevant to secondary-bedroom sizing and any future finish-out of the bonus room.
- ASHRAE Handbook — HVAC Applications, residential systems chapter, for vaulted-ceiling load calculations and return-air strategy.
- U.S. Department of Energy, Building America Best Practices Series — regional guidance on high-volume conditioned spaces in humid-subtropical climates.
- NAHB, Cost of Constructing a Home, 2024 edition — baseline hard-cost figures by region, relevant to the turnkey ranges cited in the FAQ.
- Author's consultation notes, modern farmhouse builds in the Carolinas, Georgia, and Tennessee, 2019–2025.
The Short Verdict
Plan 51772HZ is one of the stronger 1,900–2,100 sq ft single-story modern farmhouse layouts on the Architectural Designs marketplace. The split-bedroom diagram is properly executed, the closet-to-laundry detail is worth the price of the plan on its own, the walk-in pantry is genuine rather than nominal, and the bonus room over the garage gives the plan a flexibility most of its peers lack. The real trade-offs — the Jack-and-Jill bath between the secondary bedrooms, the bonus-room stair lands close to the primary suite, and a vaulted-volume HVAC load — are genuine and worth raising with your builder before you commit, not after.
For an empty-nester or a young family in the Southeast on a lot between 90 and 120 feet wide, this is a plan I'd put on the short list without hesitation. If you want to see the built expression of this style vocabulary — board-and-batten, vaulted interior, warm wood accents — my write-up of a builder-grade suburban transformed into a modern farmhouse masterpiece is the useful companion — a different plan, the same architectural language, rendered in a finished and lived-in home.
— Johan Martez, Charleston, SC




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