Home Additions

Expand your living space, enhance everyday functionality, and increase long-term property value with custom additions engineered to blend seamlessly with your home’s original architecture.

Benefits

A custom home addition is one of the smartest long-term investments you can make in your property. Whether your growing family needs an expanded primary suite, a larger open-concept kitchen, or a dedicated multi-generational living wing, AG Construction delivers seamless additions built to last. We manage every phase of the build—navigating local zoning setbacks, foundation engineering, mechanical tie-ins, and high-end interior finishes—ensuring your new space looks and feels original to the home.

How It Works

01
Feasibility, Site Assessment & Architectural Design
We review your property boundary, utility easements, and local municipality setbacks (across Franklin, Brentwood, Nashville, and surrounding areas). Working with your goals and budget, we draft architectural layouts and structural plans engineered to tie into your existing home.
02
Permitting, Foundation & Framing Tie-Ins
We secure all structural, electrical, and plumbing permits before breaking ground. Our team pours the foundation, frames the addition, and integrates the rooflines, siding, and mechanical systems (HVAC, electrical, and plumbing) into your home’s existing infrastructure.
03
Interior Build-Out & Final Inspections
From high-performance insulation and drywall to custom cabinetry, flooring, and trim carpentry, we complete the finish work with exacting detail. We coordinate all municipal building and code sign-offs to hand you a fully conditioned, move-in-ready space.

Portfolio (Case Studies)

Home Office Studio
A 2-car attached garage converted into a 580 sq ft dedicated home office and recording studio with premium soundproofing insulation, LVP flooring, and a dedicated mini-split HVAC system.
Guest Suite
A detached single-car garage transformed into a fully self-contained 320 sq ft guest suite with a full bathroom, kitchenette, and private entrance — used as short-term rental.
ADU Garage Conversion
A 2-car attached garage converted to a permitted ADU under the City of Franklin's 2025 zoning ordinance — adding legal rental income potential and increasing the appraised value of the property.

Considering Every Detail

01
Architectural Continuity
The hallmark of a quality addition is that no one can tell where the old house ends and the new one begins. We meticulously match exterior brick, siding profiles, roof pitches, trim details, and interior ceiling heights.
02
Energy & HVAC Integration
An addition shouldn’t strain your existing furnace or AC. We evaluate your mechanical loads to properly integrate extended ductwork or install high-efficiency mini-split heat pumps paired with spray-foam insulation.
03
Turnkey Permitting & Compliance
Building outwards or upwards requires strict adherence to HOA covenants, impervious surface limits, and municipal building codes. We handle all documentation and inspections from day one.

AG Construction TN handles all types of Home Additions including: Room additions, Bedroom additions, Primary suite additions, Kitchen expansions, Family room additions, Bonus rooms, In-law suites, Second-story additions, Rear additions and many more. 

Expand the Home You Love Without the Hassle of Moving

Schedule a free on-site consultation. We’ll assess your property line, review your layout ideas, and provide a clear, realistic cost estimate and timeline.