Plan HG-1430•Backyard ADU / Granny Flat•44' × 24' Footprint

1,057 Sq Ft (24x44) 2 Bed 2 Bath Backyard ADU / Granny Flat Floor Plan

1,057 sq ft heated living • 2 Bedrooms, 2 Baths • Free 2D CAD Blueprint (.SVG)

Download Free CAD (.SVG)

Room Dimensions & Zones

44' × 24' Shell

PRIMARY SUITE

253 sq ft

23'-0" × 11'-0"

BEDROOM 2

231 sq ft

21'-0" × 11'-0"

GREAT ROOM & DINING

358 sq ft

27'-6" × 13'-0"

BATH & LAUNDRY

91 sq ft

16'-6" × 5'-6"

KITCHEN & ISLAND

124 sq ft

16'-6" × 7'-6"

Build Cost Estimator

Estimated Cost to Build (44' × 24' Backyard ADU / Granny Flat)

Region:

Shell / Building Kit

$49,000 – $62,500

Framing package, roof trusses & exterior shell for 1,056 sq ft base.

Owner-Builder

$134,500 – $177,500

Saves ~$60,500 by managing local slab & interior trades.

Turnkey Builder

$195,000 – $238,000

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

Est. Monthly Payment

$1,123 / mo

$173,200 financed (30-Yr)

Down Payment:20%

Interest Rate:6.75%

Free Vector CAD Blueprint • Plan HG-1430

Download 44' × 24' Backyard ADU / Granny Flat 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 (21 yd³), roof surface (~1,219 sq ft), wall framing & architectural notes

Building Package	Specification	Quantity	Est. Range
Structural Shell & Trusses	44'×24' 2x6 Dimensional Lumber Framing / Panelized SIP Option	1,056 sq ft shell kit	$49,000 – $62,500
Concrete Slab & Grade Beams	Stem Wall or Monolithic Concrete Slab-on-Grade	21 Cubic Yards (4,000 PSI)	$10,500 – $13,250
Roofing & Underlayment	Architectural Standing-Seam Shed / Low-Slope Gable (3:12 Pitch)	15 Roofing Squares (1,500 sq ft)	$6,300 – $10,200
Closed-Cell Spray Foam / Insulation	3" Closed-Cell Wall & Roof Deck Thermal Envelope (R-21 to R-38)	7,519 Board Feet	$10,151 – $13,910
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

136 Linear Ft

Interior Partitions

~110 Linear Ft

Est. Concrete Slab

21 Cubic Yards

Roof Deck Area

~1,219 Sq Ft

Plan HG-1430 (1,057 Sq Ft (24x44) 2 Bed 2 Bath Backyard ADU / Granny Flat Floor Plan) is an IRC R304/R310-vetted backyard adu / granny flat blueprint engineered around a 44'-0" × 24'-0" structural grid (1,056 sq ft base footprint, 0.55:1 Square-Bay Proportion). Configured on the Consolidated Wet-Wall + Open Great Room topology, this layout delivers 1,057 sq ft of conditioned residential living area and 165 sq ft of covered outdoor porch deck.

Inside the conditioned envelope, the floor plan is organized into 5 distinct architectural zones: PRIMARY SUITE (23'-0" × 11'-0", 253 sq ft), BEDROOM 2 (21'-0" × 11'-0", 231 sq ft), GREAT ROOM & DINING (27'-6" × 13'-0", 358 sq ft), BATH & LAUNDRY (16'-6" × 5'-6", 91 sq ft), KITCHEN & ISLAND (16'-6" × 7'-6", 124 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 253 sq ft; BEDROOM 2 at 231 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 44' clear-span width utilizes 2x6 dimensional lumber framing / panelized sip option bearing on 136 linear feet of 6" exterior wall framing (~152 framing studs/posts) and 110 linear feet of interior partitions. The 3:12 architectural standing-seam shed / low-slope gable requires approximately 1,219 sq ft of roofing material (15 roofing squares), while the stem wall or monolithic concrete slab-on-grade pours at an estimated 21 cubic yards of 4,000-PSI concrete.

Frequently Asked Questions • Plan HG-1430

Building costs, foundation specs, egress & CAD customization questions

How much does it cost to build the 44x24 1,057 Sq Ft (24x44) 2 Bed 2 Bath Backyard ADU / Granny Flat Floor Plan (HG-1430)?

Based on current national residential construction data for backyard adu / granny flat structures, the dried-in structural shell for Plan HG-1430 (1,056 sq ft base footprint) ranges from $49,000 to $62,500 ($48/sq ft baseline). A complete turnkey build—including the 21-yard concrete foundation, 110 linear feet of interior framing, MEP rough-ins for 2 bath(s), and interior finishes across 1,057 sq ft of heated space—ranges from $195,000 to $238,000. 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 1,057 sq ft 2-bedroom layout?

Plan HG-1430 features 5 architecturally solved spaces inside its 44' × 24' footprint: PRIMARY SUITE (23'-0" × 11'-0", 253 sq ft), BEDROOM 2 (21'-0" × 11'-0", 231 sq ft), GREAT ROOM & DINING (27'-6" × 13'-0", 358 sq ft), BATH & LAUNDRY (16'-6" × 5'-6", 91 sq ft), KITCHEN & ISLAND (16'-6" × 7'-6", 124 sq ft). Every habitable room meets or exceeds IRC R304 minimum area (70+ sq ft) and minimum horizontal dimension (7'-0"+) requirements.

Can this 44' × 24' floor plan be built with post-frame, red-iron steel, or 2x6 stick framing?

Yes. Because the outer envelope is engineered on an even 44'-0" × 24'-0" structural grid (136 LF perimeter) with clear-span 3:12 trusses, a local structural engineer or building kit supplier can adapt the blueprint for 2x6 Dimensional Lumber Framing / Panelized SIP Option, 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-1430?

Downloading Plan HG-1430 provides the high-resolution scalable vector floor plan (.SVG) with crisp architectural lineweights, exterior dimension strings (44'-0" × 24'-0"), room-by-room callouts, door swing arcs, and window schedules, plus instant browser printing for contractor bidding and preliminary municipal zoning review.