Plan HG-1183•Garage with Loft / Apartment Above•32' × 20' Footprint

642 Sq Ft (20x32) 1 Bed 1 Bath Garage with Loft / Apartment Above Floor Plan with Apartment Above

822 sq ft heated living + 460 sq ft 1-bay shop • 1 Bedroom, 1 Bath • Free 2D CAD Blueprint (.SVG)

Download Free CAD (.SVG)

Room Dimensions & Zones

32' × 20' Shell

1-BAY GARAGE

460 sq ft

23'-0" × 20'-0"

UTILITY & GEAR

81 sq ft

9'-0" × 9'-0"

FOYER & STAIRS

99 sq ft

9'-0" × 11'-0"

PRIMARY SUITE

153 sq ft

17'-0" × 9'-0"

WALK-IN CLOSET

59 sq ft

6'-6" × 9'-0"

FULL BATH

77 sq ft

8'-6" × 9'-0"

LIVING & DINING

149 sq ft

13'-6" × 11'-0"

KITCHEN & ISLAND

105 sq ft

9'-6" × 11'-0"

STAIR LANDING

99 sq ft

9'-0" × 11'-0"

Build Cost Estimator

Estimated Cost to Build (32' × 20' Garage with Loft / Apartment Above)

Region:

Shell / Building Kit

$41,500 – $53,000

Framing package, roof trusses & exterior shell for 640 sq ft base.

Owner-Builder

$92,500 – $122,500

Saves ~$41,500 by managing local slab & interior trades.

Turnkey Builder

$134,000 – $164,000

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

Est. Monthly Payment

$773 / mo

$119,200 financed (30-Yr)

Down Payment:20%

Interest Rate:6.75%

Free Vector CAD Blueprint • Plan HG-1183

Download 32' × 20' Garage with Loft / Apartment Above 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 (17 yd³), roof surface (~861 sq ft), wall framing & architectural notes

Building Package	Specification	Quantity	Est. Range
Structural Shell & Trusses	32'×20' 2x6 Lower Walls + 14" Engineered Wood I-Joist Floor System	640 sq ft shell kit	$41,500 – $53,000
Concrete Slab & Grade Beams	6" Reinforced Garage Slab w/ Perimeter Footings & Apron	17 Cubic Yards (4,000 PSI)	$7,250 – $9,250
Roofing & Underlayment	Dormered Gable or Gambrel Roof (8:12 / 4:12 Shed Dormers) (8:12 Pitch)	9 Roofing Squares (900 sq ft)	$3,780 – $6,120
Closed-Cell Spray Foam / Insulation	3" Closed-Cell Wall & Roof Deck Thermal Envelope (R-21 to R-38)	8,136 Board Feet	$10,984 – $15,052
Windows & Exterior Doors	Low-E Argon Black Architectural Glazing + Insulated Overhead Shop Door(s)	8 Windows • 8 Doors	$8,400 – $13,240
HVAC & Multi-Zone Mini-Split	High-SEER2 Heat Pump / Ductless Mini-Split System	1.5 Ton (18,000 BTU/hr)	$3,900 – $6,150

Exterior Perimeter

104 Linear Ft

Interior Partitions

~148 Linear Ft

Est. Concrete Slab

17 Cubic Yards

Roof Deck Area

~861 Sq Ft

Plan HG-1183 (642 Sq Ft (20x32) 1 Bed 1 Bath Garage with Loft / Apartment Above Floor Plan with Apartment Above) is an IRC R304/R310-vetted garage with loft / apartment above blueprint engineered around a 32'-0" × 20'-0" structural grid (640 sq ft base footprint, 0.63:1 Square-Bay Proportion). Configured on the Side-Vestibule Garage + Balcony Apartment topology, this layout delivers 822 sq ft of conditioned residential living area paired with a 460 sq ft fire-separated workshop/garage bay and 81 sq ft of covered outdoor porch deck.

Inside the conditioned envelope, the floor plan is organized into 9 distinct architectural zones: 1-BAY GARAGE (23'-0" × 20'-0", 460 sq ft), UTILITY & GEAR (9'-0" × 9'-0", 81 sq ft), FOYER & STAIRS (9'-0" × 11'-0", 99 sq ft), PRIMARY SUITE (17'-0" × 9'-0", 153 sq ft), WALK-IN CLOSET (6'-6" × 9'-0", 59 sq ft), FULL BATH (8'-6" × 9'-0", 77 sq ft). Plumbing rough-ins are consolidated across UTILITY & GEAR, FULL BATH, KITCHEN & ISLAND to minimize sub-slab trenching and manifold pipe runs. Sleeping quarters (PRIMARY SUITE at 153 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 32' clear-span width utilizes 2x6 lower walls + 14" engineered wood i-joist floor system bearing on 104 linear feet of 6" exterior wall framing (~152 framing studs/posts) and 148 linear feet of interior partitions. The 8:12 dormered gable or gambrel roof (8:12 / 4:12 shed dormers) requires approximately 861 sq ft of roofing material (9 roofing squares), while the 6" reinforced garage slab w/ perimeter footings & apron pours at an estimated 17 cubic yards of 4,000-PSI concrete.

Frequently Asked Questions • Plan HG-1183

Building costs, foundation specs, egress & CAD customization questions

How much does it cost to build the 32x20 642 Sq Ft (20x32) 1 Bed 1 Bath Garage with Loft / Apartment Above Floor Plan with Apartment Above (HG-1183)?

Based on current national residential construction data for garage with loft / apartment above structures, the dried-in structural shell for Plan HG-1183 (640 sq ft base footprint) ranges from $41,500 to $53,000 ($38/sq ft baseline). A complete turnkey build—including the 17-yard concrete foundation, 148 linear feet of interior framing, MEP rough-ins for 1 bath(s), and interior finishes across 822 sq ft of heated space plus the 460 sq ft shop bay—ranges from $134,000 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 822 sq ft 1-bedroom layout?

Plan HG-1183 features 9 architecturally solved spaces inside its 32' × 20' footprint: 1-BAY GARAGE (23'-0" × 20'-0", 460 sq ft), UTILITY & GEAR (9'-0" × 9'-0", 81 sq ft), FOYER & STAIRS (9'-0" × 11'-0", 99 sq ft), PRIMARY SUITE (17'-0" × 9'-0", 153 sq ft), WALK-IN CLOSET (6'-6" × 9'-0", 59 sq ft), FULL BATH (8'-6" × 9'-0", 77 sq ft), LIVING & DINING (13'-6" × 11'-0", 149 sq ft), KITCHEN & ISLAND (9'-6" × 11'-0", 105 sq ft), STAIR LANDING (9'-0" × 11'-0", 99 sq ft). Every habitable room meets or exceeds IRC R304 minimum area (70+ sq ft) and minimum horizontal dimension (7'-0"+) requirements.

Can this 32' × 20' floor plan be built with post-frame, red-iron steel, or 2x6 stick framing?

Yes. Because the outer envelope is engineered on an even 32'-0" × 20'-0" structural grid (104 LF perimeter) with clear-span 8:12 trusses, a local structural engineer or building kit supplier can adapt the blueprint for 2x6 Lower Walls + 14" Engineered Wood I-Joist Floor System, 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-1183?

Downloading Plan HG-1183 provides the high-resolution scalable vector floor plan (.SVG) with crisp architectural lineweights, exterior dimension strings (32'-0" × 20'-0"), room-by-room callouts, door swing arcs, and window schedules, plus instant browser printing for contractor bidding and preliminary municipal zoning review.