Plan HG-1972•Modular / Prefab Cottage•50' × 30' Footprint

1,500 Sq Ft (30x50) 3 Bed 2 Bath Modular / Prefab Cottage Floor Plan (Split-Bedroom Privacy Wing + Center Great Room)

1,500 sq ft heated living • 3 Bedrooms, 2 Baths • Free 2D CAD Blueprint (.SVG)

Download Free CAD (.SVG)

Room Dimensions & Zones

50' × 30' Shell

PRIMARY SUITE

270 sq ft

15'-0" × 18'-0"

EN-SUITE BATH

180 sq ft

15'-0" × 12'-0"

KITCHEN & ISLAND

273 sq ft

21'-0" × 13'-0"

GREAT ROOM

357 sq ft

21'-0" × 17'-0"

BEDROOM 2

245 sq ft

14'-0" × 17'-6"

HALL BATH

175 sq ft

14'-0" × 12'-6"

Build Cost Estimator

Estimated Cost to Build (50' × 30' Modular / Prefab Cottage)

Region:

Shell / Building Kit

$62,500 – $79,500

Framing package, roof trusses & exterior shell for 1,500 sq ft base.

Owner-Builder

$153,500 – $202,500

Saves ~$69,500 by managing local slab & interior trades.

Turnkey Builder

$223,000 – $272,000

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

Est. Monthly Payment

$1,284 / mo

$198,000 financed (30-Yr)

Down Payment:20%

Interest Rate:6.75%

Free Vector CAD Blueprint • Plan HG-1972

Download 50' × 30' 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 (28 yd³), roof surface (~1,820 sq ft), wall framing & architectural notes

Building Package	Specification	Quantity	Est. Range
Structural Shell & Trusses	50'×30' Factory-Engineered 2x6 Modular Box System w/ Marriage Wall	1,500 sq ft shell kit	$62,500 – $79,500
Concrete Slab & Grade Beams	Stem Wall Crawlspace or Full Perimeter Foundation	28 Cubic Yards (4,000 PSI)	$14,250 – $18,250
Roofing & Underlayment	Hinged 5:12 Architectural Shingle or Metal Gable Roof (5:12 Pitch)	20 Roofing Squares (2,000 sq ft)	$8,400 – $13,600
Closed-Cell Spray Foam / Insulation	3" Closed-Cell Wall & Roof Deck Thermal Envelope (R-21 to R-38)	9,735 Board Feet	$13,142 – $18,010
Windows & Exterior Doors	Low-E Argon Black Architectural Glazing + 36" Fiberglass Entry	4 Windows • 5 Doors	$3,800 – $6,020
HVAC & Multi-Zone Mini-Split	High-SEER2 Heat Pump / Ductless Mini-Split System	3 Ton (36,000 BTU/hr)	$7,800 – $12,300

Exterior Perimeter

160 Linear Ft

Interior Partitions

~137 Linear Ft

Est. Concrete Slab

28 Cubic Yards

Roof Deck Area

~1,820 Sq Ft

Plan HG-1972 (1,500 Sq Ft (30x50) 3 Bed 2 Bath Modular / Prefab Cottage Floor Plan (Split-Bedroom Privacy Wing + Center Great Room)) is an IRC R304/R310-vetted modular / prefab cottage blueprint engineered around a 50'-0" × 30'-0" structural grid (1,500 sq ft base footprint, 0.6:1 Square-Bay Proportion). Configured on the Split-Bedroom Privacy Wing + Center Great Room topology, this layout delivers 1,500 sq ft of conditioned residential living area and 147 sq ft of covered outdoor porch deck.

Inside the conditioned envelope, the floor plan is organized into 6 distinct architectural zones: PRIMARY SUITE (15'-0" × 18'-0", 270 sq ft), EN-SUITE BATH (15'-0" × 12'-0", 180 sq ft), KITCHEN & ISLAND (21'-0" × 13'-0", 273 sq ft), GREAT ROOM (21'-0" × 17'-0", 357 sq ft), BEDROOM 2 (14'-0" × 17'-6", 245 sq ft), HALL BATH (14'-0" × 12'-6", 175 sq ft). Plumbing rough-ins are consolidated across EN-SUITE BATH, KITCHEN & ISLAND, HALL BATH to minimize sub-slab trenching and manifold pipe runs. Sleeping quarters (PRIMARY SUITE at 270 sq ft; BEDROOM 2 at 245 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 160 linear feet of 6" exterior wall framing (~172 framing studs/posts) and 137 linear feet of interior partitions. The 5:12 hinged 5:12 architectural shingle or metal gable roof requires approximately 1,820 sq ft of roofing material (20 roofing squares), while the stem wall crawlspace or full perimeter foundation pours at an estimated 28 cubic yards of 4,000-PSI concrete.

Frequently Asked Questions • Plan HG-1972

Building costs, foundation specs, egress & CAD customization questions

How much does it cost to build the 50x30 1,500 Sq Ft (30x50) 3 Bed 2 Bath Modular / Prefab Cottage Floor Plan (Split-Bedroom Privacy Wing + Center Great Room) (HG-1972)?

Based on current national residential construction data for modular / prefab cottage structures, the dried-in structural shell for Plan HG-1972 (1,500 sq ft base footprint) ranges from $62,500 to $79,500 ($44/sq ft baseline). A complete turnkey build—including the 28-yard concrete foundation, 137 linear feet of interior framing, MEP rough-ins for 2 bath(s), and interior finishes across 1,500 sq ft of heated space—ranges from $223,000 to $272,000. 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 1,500 sq ft 3-bedroom layout?

Plan HG-1972 features 6 architecturally solved spaces inside its 50' × 30' footprint: PRIMARY SUITE (15'-0" × 18'-0", 270 sq ft), EN-SUITE BATH (15'-0" × 12'-0", 180 sq ft), KITCHEN & ISLAND (21'-0" × 13'-0", 273 sq ft), GREAT ROOM (21'-0" × 17'-0", 357 sq ft), BEDROOM 2 (14'-0" × 17'-6", 245 sq ft), HALL BATH (14'-0" × 12'-6", 175 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' × 30' 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" × 30'-0" structural grid (160 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-1972?

Downloading Plan HG-1972 provides the high-resolution scalable vector floor plan (.SVG) with crisp architectural lineweights, exterior dimension strings (50'-0" × 30'-0"), room-by-room callouts, door swing arcs, and window schedules, plus instant browser printing for contractor bidding and preliminary municipal zoning review.