Living & family spaces
Create larger gathering areas, flex rooms, offices, or everyday spaces that improve how the home functions.
Home additions
More room—designed
to belong.
Home additions for San Antonio and Texas Hill Country properties, planned to connect the new structure, exterior, building systems, and interior finishes to what is already there.
Connected by design
An addition should feel like part of the original home.
A successful addition does more than create square footage. Rooflines, foundations, utilities, circulation, exterior materials, natural light, and interior transitions all need to work together.
Primary suites
Add a coordinated bedroom, bathroom, storage, lighting, and privacy plan designed around long-term use.
Kitchen expansions
Extend the footprint to improve kitchen flow, pantry capacity, dining space, and the relationship to outdoor areas.
Garage conversions
Evaluate structure, floor height, insulation, windows, mechanical systems, and exterior changes for comfortable living space.
Exterior integration
Coordinate roof tie-ins, windows, masonry or siding, drainage, and architectural details with the existing home.
Interior connection
Resolve openings, flooring, trim, paint, lighting, and circulation so old and new spaces read as one home.
Planning the work
Feasibility comes before finishes.
Additions carry more early-stage coordination than most interior remodels. We begin by understanding the property and the constraints that shape the right solution.
Site and existing structure
Setbacks, easements, grade, utilities, foundation type, roof geometry, and existing framing affect what can be built.
Design and engineering
Plans and structural details establish how the addition connects safely and support accurate trade coordination.
Permits and utilities
Jurisdiction, septic capacity, electrical service, HVAC, plumbing, and drainage can influence scope and schedule.
Matching the home
Some existing materials can be matched closely; others require an intentional transition or broader replacement strategy.
What to expect
Clear decisions before construction. Consistent communication during it.
- 01
Feasibility conversation
We review the goal, property, current home, desired square footage, investment expectations, and likely constraints.
- 02
Design and preconstruction
The layout, structure, site requirements, building systems, selections, and permitting path are developed before field work.
- 03
Detailed scope and schedule
We coordinate trade input, clarify allowances and exclusions, and establish the sequence for connecting new work to the home.
- 04
Construction and weather protection
Site work, foundation, framing, dry-in, rough systems, and interior finishes progress with protection and communication at each stage.
- 05
Integration and closeout
We review the transition between existing and new construction, complete final details, and walk the finished space together.
Common project questions
Helpful answers before the work begins.
Every home and scope is different, but understanding the decisions ahead makes the process easier to plan.
Question 01
What happens before an addition can be priced accurately?
We first evaluate the property, existing structure, desired square footage, setbacks, utilities, foundation and roof connections, and the level of finish. Design and engineering information are usually needed before a dependable construction price and schedule can be established.
Question 02
How long does a home addition typically take?
Design, engineering, permitting, and selections may take several months before construction starts. Many additions then require roughly 4–8 months to build, depending on size, site conditions, inspections, weather, utility work, and how extensively the new space connects to the existing home.
Question 03
What affects the cost of a home addition?
Foundation and roof complexity, structural tie-ins, plumbing and HVAC extensions, site access, utility capacity, exterior material matching, window and door packages, and interior finish level are major cost drivers. Cost per square foot can be higher than new construction because old and new work must be carefully integrated.
Question 04
Can we remain in the home during construction?
Often, yes. We plan how and when the addition will connect to the occupied home, maintain weather protection, establish safe work boundaries, and communicate temporary disruptions. Some phases may require limited access or short-term accommodations.
Question 05
Will the addition match the existing house?
Our goal is for the addition to feel intentional. We study rooflines, windows, masonry or siding, trim, flooring, ceiling heights, and interior transitions. When an exact material match is unavailable, we recommend a deliberate transition instead of an almost-match that looks accidental.
Service area
Serving San Antonio and the Texas Hill Country.
IG Carpentry & Construction works with homeowners in San Antonio, Bulverde, Boerne, Spring Branch, New Braunfels, Blanco, Canyon Lake, Marble Falls, Johnson City, Wimberley, and surrounding communities.
Explore our service areas