Plan HG-1760•Modular / Prefab Cottage•30' × 30' Footprint

900 Sq Ft (30x30) 2 Bed 2 Bath Modular / Prefab Cottage Floor Plan (Consolidated Wet-Wall + Open Great Room)

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

Download Free CAD (.SVG)

Room Dimensions & Zones

30' × 30' Shell

PRIMARY SUITE

209 sq ft

15'-6" × 13'-6"

BEDROOM 2

196 sq ft

14'-6" × 13'-6"

GREAT ROOM & DINING

305 sq ft

18'-6" × 16'-6"

BATH & LAUNDRY

86 sq ft

11'-6" × 7'-6"

KITCHEN & ISLAND

104 sq ft

11'-6" × 9'-0"

Build Cost Estimator

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

Region:

Shell / Building Kit

$38,000 – $48,500

Framing package, roof trusses & exterior shell for 900 sq ft base.

Owner-Builder

$93,000 – $122,000

Saves ~$42,000 by managing local slab & interior trades.

Turnkey Builder

$135,000 – $164,000

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

Est. Monthly Payment

$776 / mo

$119,600 financed (30-Yr)

Down Payment:20%

Interest Rate:6.75%

Free Vector CAD Blueprint • Plan HG-1760

Download 30' × 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 (18 yd³), roof surface (~1,092 sq ft), wall framing & architectural notes

Building Package	Specification	Quantity	Est. Range
Structural Shell & Trusses	30'×30' Factory-Engineered 2x6 Modular Box System w/ Marriage Wall	900 sq ft shell kit	$38,000 – $48,500
Concrete Slab & Grade Beams	Stem Wall Crawlspace or Full Perimeter Foundation	18 Cubic Yards (4,000 PSI)	$8,750 – $11,000
Roofing & Underlayment	Hinged 5:12 Architectural Shingle or Metal Gable Roof (5:12 Pitch)	12 Roofing Squares (1,200 sq ft)	$5,040 – $8,160
Closed-Cell Spray Foam / Insulation	3" Closed-Cell Wall & Roof Deck Thermal Envelope (R-21 to R-38)	6,525 Board Feet	$8,809 – $12,071
Windows & Exterior Doors	Low-E Argon Black Architectural Glazing + 36" Fiberglass Entry	5 Windows • 4 Doors	$4,450 – $7,000
HVAC & Multi-Zone Mini-Split	High-SEER2 Heat Pump / Ductless Mini-Split System	2 Ton (24,000 BTU/hr)	$5,200 – $8,200

Exterior Perimeter

120 Linear Ft

Interior Partitions

~95 Linear Ft

Est. Concrete Slab

18 Cubic Yards

Roof Deck Area

~1,092 Sq Ft

Plan HG-1760 (900 Sq Ft (30x30) 2 Bed 2 Bath Modular / Prefab Cottage Floor Plan (Consolidated Wet-Wall + Open Great Room)) is an IRC R304/R310-vetted modular / prefab cottage blueprint engineered around a 30'-0" × 30'-0" structural grid (900 sq ft base footprint, 1:1 Square-Bay Proportion). Configured on the Consolidated Wet-Wall + Open Great Room topology, this layout delivers 900 sq ft of conditioned residential living area and 111 sq ft of covered outdoor porch deck.

Inside the conditioned envelope, the floor plan is organized into 5 distinct architectural zones: PRIMARY SUITE (15'-6" × 13'-6", 209 sq ft), BEDROOM 2 (14'-6" × 13'-6", 196 sq ft), GREAT ROOM & DINING (18'-6" × 16'-6", 305 sq ft), BATH & LAUNDRY (11'-6" × 7'-6", 86 sq ft), KITCHEN & ISLAND (11'-6" × 9'-0", 104 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 209 sq ft; BEDROOM 2 at 196 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 30' clear-span width utilizes factory-engineered 2x6 modular box system w/ marriage wall bearing on 120 linear feet of 6" exterior wall framing (~138 framing studs/posts) and 95 linear feet of interior partitions. The 5:12 hinged 5:12 architectural shingle or metal gable roof requires approximately 1,092 sq ft of roofing material (12 roofing squares), while the stem wall crawlspace or full perimeter foundation pours at an estimated 18 cubic yards of 4,000-PSI concrete.

Frequently Asked Questions • Plan HG-1760

Building costs, foundation specs, egress & CAD customization questions

How much does it cost to build the 30x30 900 Sq Ft (30x30) 2 Bed 2 Bath Modular / Prefab Cottage Floor Plan (Consolidated Wet-Wall + Open Great Room) (HG-1760)?

Based on current national residential construction data for modular / prefab cottage structures, the dried-in structural shell for Plan HG-1760 (900 sq ft base footprint) ranges from $38,000 to $48,500 ($44/sq ft baseline). A complete turnkey build—including the 18-yard concrete foundation, 95 linear feet of interior framing, MEP rough-ins for 2 bath(s), and interior finishes across 900 sq ft of heated space—ranges from $135,000 to $164,000. 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 900 sq ft 2-bedroom layout?

Plan HG-1760 features 5 architecturally solved spaces inside its 30' × 30' footprint: PRIMARY SUITE (15'-6" × 13'-6", 209 sq ft), BEDROOM 2 (14'-6" × 13'-6", 196 sq ft), GREAT ROOM & DINING (18'-6" × 16'-6", 305 sq ft), BATH & LAUNDRY (11'-6" × 7'-6", 86 sq ft), KITCHEN & ISLAND (11'-6" × 9'-0", 104 sq ft). Every habitable room meets or exceeds IRC R304 minimum area (70+ sq ft) and minimum horizontal dimension (7'-0"+) requirements.

Can this 30' × 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 30'-0" × 30'-0" structural grid (120 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-1760?

Downloading Plan HG-1760 provides the high-resolution scalable vector floor plan (.SVG) with crisp architectural lineweights, exterior dimension strings (30'-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.