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Services

Home Additions

Seamlessly integrated additions that expand your living space while maintaining your home's architectural harmony.

A home addition is a permanent structural expansion of your existing home — adding square footage through a room addition, second story, garage conversion, sunroom, or accessory dwelling unit. Brick & Beam Homes designs and builds additions across Middle Tennessee that integrate seamlessly with the existing structure, both architecturally and aesthetically.

The hallmark of a well-built addition is that you can't tell where the original home ends and the new construction begins. That requires careful attention to rooflines, siding materials, window profiles, interior trim, and flooring transitions. We design for that cohesion from the very first sketch.

Whether you need a primary suite addition, a larger kitchen, a dedicated home office, or a connected guest suite, we engineer the addition to last for the life of the home — with proper foundation work, insulation, and structural framing that meets or exceeds Tennessee building standards.

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At a Glance

  • Typical cost: $150 – $300/sq ft
  • Timeline: 3 – 6 months
  • Structural engineering included
  • All permits handled by Brick & Beam
  • Exterior matching is a design priority
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Scope of Work

What's Included

From foundation to finish, we manage every element of the addition under one project plan.

Design & Engineering Architectural plans and structural engineering drawings prepared for permit submission.
Foundation Work New footings and foundation engineered to match the existing structure and local soil conditions.
Framing & Structural Work Wall framing, roof framing, and any structural modifications to connect addition to existing home.
Exterior Matching Siding, roofing, windows, and trim sourced and installed to match or complement the existing home.
Mechanical Rough-In HVAC extension, plumbing rough-in, and electrical service expanded into the new space.
Insulation & Drywall Proper thermal and acoustic insulation followed by smooth drywall installation and finish.
Interior Finishes Flooring, trim, doors, paint, and all interior finishes coordinated with the existing home.
Permit Management All building permits, inspections, and engineering submittals handled by our team.
Our Approach

How We're Different

01

Seamless Architectural Integration

We design the addition to look like it was always there. Rooflines, window profiles, siding patterns, and interior trim are matched with precision so the transition is invisible.

02

Structural Engineering Included

Every addition is backed by licensed structural engineering. We don't guess at load paths or foundation requirements — we engineer them correctly before a shovel hits the ground.

03

Complete Permit Management

Home additions require more permitting than any other remodel type. We handle every submittal, inspection, and revision with your local municipality — you don't have to navigate it.

04

Built to Last

We don't build additions that settle differently from the existing home or develop moisture problems five years later. Every system — foundation, framing, envelope, HVAC — is done right the first time.

Common Questions

Home Additions FAQ

Home additions in Middle Tennessee typically range from $150–$300 per square foot, depending on foundation type, exterior matching complexity, and interior finish level. A 500 sq ft primary suite addition at mid-level finishes runs roughly $100,000–$150,000. We provide a detailed itemized estimate before any work begins.
Most additions take 3–6 months from permit approval to completion. The permitting process in Williamson County typically adds 4–8 weeks before construction begins. We factor permit timelines into the project schedule from day one so there are no surprises.
Yes. All structural additions require building permits, including foundation, framing, electrical, and plumbing inspections. We manage the full permitting process, including structural engineering submittals required by the county.
Yes — exterior matching is a design priority. We source matching or complementary siding, roofing, windows, and trim so the addition reads as part of the original home, not an afterthought. This matters both aesthetically and for resale value.
In many cases, yes. Second-story additions require a structural assessment of the existing foundation and framing to determine what load it can carry. We work with licensed structural engineers to evaluate feasibility, and if the existing structure needs reinforcement, we address that as part of the project scope.

Serving All of Middle Tennessee

Brick & Beam Homes serves Thompson's Station, Franklin, Brentwood, Nashville, Nolensville, Spring Hill, Murfreesboro, Columbia, and surrounding Williamson and Davidson County communities.

Ready to Expand Your Home?

Schedule a free consultation and let's explore what's possible for your property.

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