Plan HG-2483•Modular / Prefab Cottage•50' × 36' Footprint

1,800 Sq Ft (36x50) 3 Bed 2 Bath Modular / Prefab Cottage Floor Plan

1,800 sq ft heated living • 3 Bedrooms, 2 Baths • Free 2D CAD Blueprint (.SVG)

Download Free CAD (.SVG)

Room Dimensions & Zones

50' × 36' Shell

PRIMARY SUITE

304 sq ft

19'-0" × 16'-0"

BEDROOM 2

248 sq ft

15'-6" × 16'-0"

BEDROOM 3

248 sq ft

15'-6" × 16'-0"

GREAT ROOM & DINING

620 sq ft

31'-0" × 20'-0"

BATH & LAUNDRY

171 sq ft

19'-0" × 9'-0"

KITCHEN & ISLAND

209 sq ft

19'-0" × 11'-0"

Build Cost Estimator

Estimated Cost to Build (50' × 36' Modular / Prefab Cottage)

Region:

Shell / Building Kit

$75,000 – $96,000

Framing package, roof trusses & exterior shell for 1,800 sq ft base.

Owner-Builder

$185,000 – $243,000

Saves ~$83,000 by managing local slab & interior trades.

Turnkey Builder

$268,000 – $326,000

Full general contractor finish including slab, HVAC, kitchen & baths.

Est. Monthly Payment

$1,541 / mo

$237,600 financed (30-Yr)

Down Payment:20%

Interest Rate:6.75%

Free Vector CAD Blueprint • Plan HG-2483

Download 50' × 36' Modular / Prefab Cottage Floor Plan (.SVG)

Scalable 2D architectural vector drawing with exterior and room dimensions, door swings, and fixture layout. Opens in AutoCAD, Illustrator, Inkscape, or any browser.

Material Takeoff & Framing Specifications

Concrete volume (32 yd³), roof surface (~2,184 sq ft), wall framing & architectural notes

Building Package	Specification	Quantity	Est. Range
Structural Shell & Trusses	50'×36' Factory-Engineered 2x6 Modular Box System w/ Marriage Wall	1,800 sq ft shell kit	$75,000 – $96,000
Concrete Slab & Grade Beams	Stem Wall Crawlspace or Full Perimeter Foundation	32 Cubic Yards (4,000 PSI)	$17,000 – $21,750
Roofing & Underlayment	Hinged 5:12 Architectural Shingle or Metal Gable Roof (5:12 Pitch)	24 Roofing Squares (2,400 sq ft)	$10,080 – $16,320
Closed-Cell Spray Foam / Insulation	3" Closed-Cell Wall & Roof Deck Thermal Envelope (R-21 to R-38)	11,112 Board Feet	$15,001 – $20,557
Windows & Exterior Doors	Low-E Argon Black Architectural Glazing + 36" Fiberglass Entry	6 Windows • 5 Doors	$5,100 – $7,980
HVAC & Multi-Zone Mini-Split	High-SEER2 Heat Pump / Ductless Mini-Split System	3.5 Ton (42,000 BTU/hr)	$9,100 – $14,350

Exterior Perimeter

172 Linear Ft

Interior Partitions

~149 Linear Ft

Est. Concrete Slab

32 Cubic Yards

Roof Deck Area

~2,184 Sq Ft

Plan HG-2483 (1,800 Sq Ft (36x50) 3 Bed 2 Bath Modular / Prefab Cottage Floor Plan) is an IRC R304/R310-vetted modular / prefab cottage blueprint engineered around a 50'-0" × 36'-0" structural grid (1,800 sq ft base footprint, 0.72:1 Square-Bay Proportion). Configured on the Consolidated Wet-Wall + Open Great Room topology, this layout delivers 1,800 sq ft of conditioned residential living area and 186 sq ft of covered outdoor porch deck.

Inside the conditioned envelope, the floor plan is organized into 6 distinct architectural zones: PRIMARY SUITE (19'-0" × 16'-0", 304 sq ft), BEDROOM 2 (15'-6" × 16'-0", 248 sq ft), BEDROOM 3 (15'-6" × 16'-0", 248 sq ft), GREAT ROOM & DINING (31'-0" × 20'-0", 620 sq ft), BATH & LAUNDRY (19'-0" × 9'-0", 171 sq ft), KITCHEN & ISLAND (19'-0" × 11'-0", 209 sq ft). Plumbing rough-ins are consolidated across BATH & LAUNDRY, KITCHEN & ISLAND to minimize sub-slab trenching and manifold pipe runs. Sleeping quarters (PRIMARY SUITE at 304 sq ft; BEDROOM 2 at 248 sq ft; BEDROOM 3 at 248 sq ft) are acoustically buffered from the primary living core and positioned on exterior elevations for code-compliant egress glazing.

From a builder takeoff standpoint, the 50' clear-span width utilizes factory-engineered 2x6 modular box system w/ marriage wall bearing on 172 linear feet of 6" exterior wall framing (~190 framing studs/posts) and 149 linear feet of interior partitions. The 5:12 hinged 5:12 architectural shingle or metal gable roof requires approximately 2,184 sq ft of roofing material (24 roofing squares), while the stem wall crawlspace or full perimeter foundation pours at an estimated 32 cubic yards of 4,000-PSI concrete.

Frequently Asked Questions • Plan HG-2483

Building costs, foundation specs, egress & CAD customization questions

How much does it cost to build the 50x36 1,800 Sq Ft (36x50) 3 Bed 2 Bath Modular / Prefab Cottage Floor Plan (HG-2483)?

Based on current national residential construction data for modular / prefab cottage structures, the dried-in structural shell for Plan HG-2483 (1,800 sq ft base footprint) ranges from $75,000 to $96,000 ($44/sq ft baseline). A complete turnkey build—including the 32-yard concrete foundation, 149 linear feet of interior framing, MEP rough-ins for 2 bath(s), and interior finishes across 1,800 sq ft of heated space—ranges from $268,000 to $326,000. Use the interactive Regional Cost Multiplier on this page to adjust for your local labor market and owner-builder sweat equity.

What are the exact room dimensions inside this 1,800 sq ft 3-bedroom layout?

Plan HG-2483 features 6 architecturally solved spaces inside its 50' × 36' footprint: PRIMARY SUITE (19'-0" × 16'-0", 304 sq ft), BEDROOM 2 (15'-6" × 16'-0", 248 sq ft), BEDROOM 3 (15'-6" × 16'-0", 248 sq ft), GREAT ROOM & DINING (31'-0" × 20'-0", 620 sq ft), BATH & LAUNDRY (19'-0" × 9'-0", 171 sq ft), KITCHEN & ISLAND (19'-0" × 11'-0", 209 sq ft). Every habitable room meets or exceeds IRC R304 minimum area (70+ sq ft) and minimum horizontal dimension (7'-0"+) requirements.

Can this 50' × 36' floor plan be built with post-frame, red-iron steel, or 2x6 stick framing?

Yes. Because the outer envelope is engineered on an even 50'-0" × 36'-0" structural grid (172 LF perimeter) with clear-span 5:12 trusses, a local structural engineer or building kit supplier can adapt the blueprint for Factory-Engineered 2x6 Modular Box System w/ Marriage Wall, conventional 2x6 stick framing at 16" o.c., laminated post-frame columns at 8' o.c., or structural insulated panels (SIPs).

What files are included in the free CAD blueprint download for Plan HG-2483?

Downloading Plan HG-2483 provides the high-resolution scalable vector floor plan (.SVG) with crisp architectural lineweights, exterior dimension strings (50'-0" × 36'-0"), room-by-room callouts, door swing arcs, and window schedules, plus instant browser printing for contractor bidding and preliminary municipal zoning review.