3RC LLC
Home Additions
Home Additions In Chicago, in Tinley, Park, Orland Park, Oak Lawn
Make room for what’s next—without leaving the neighborhood you love. 3RC LLC designs and builds home additions across Chicago’s south suburbs, delivering space that looks and feels original to your home: structurally sound, energy-smart, and finished with care.
Why Add Space with 3RC LLC
Design-Build Simplicity: One accountable team from concept to completion.
Permits & Inspections: We handle drawings, submittals, and scheduling with your municipality.
Clean Craftsmanship: Protected pathways, daily tidy-ups, respectful crews.
On-Budget Planning: Clear itemized proposals, value-engineered options, and milestone updates.
What Makes an Addition Feel “Original”
Structure Done Right:
Foundations, beams, and load paths calculated for the real world not just the drawing.
Exterior Continuity:
Roofing, siding, soffit/fascia, windows, and trim matched or intentionally updated for a cohesive look.
Interior Harmony:
Floor heights, casing profiles, stair details, and lighting plans aligned with the rest of the house.
Mechanical Integration:
HVAC sizing/ducting, electrical capacity, and plumbing runs designed into the plan—no afterthoughts.
Design & Selections Support
We’ll guide layouts, elevations, and materials so your addition delivers daily comfort and long-term value:
- Cabinetry (stock, semi-custom, custom)
- Countertops (quartz, granite, butcher block)
- Flooring (hardwood, LVP/LVT, tile)
- Tile & waterproofing systems
- Windows/doors with the right U-values and hardware
- Lighting, ventilation, and smart controls
Our Process
Consultation & Site Walk
Goals, constraints, budget range.
Concepts & Scope
Layout options, elevations, and structural approach.
Itemized Proposal
Clear pricing, allowances, and schedule.
Permits & Mobilization
Submittals, materials, and staging.
Build Clean
Framing to finishes with daily tidy-ups and progress updates.
Wrap & Warranty
Final walkthrough, punch-list closed, documentation delivered.
Types of Additions We Build
Kitchen & Dining Bump-Outs
Gain prep space, a real pantry, and better circulation for everyday life and hosting.
Primary Suite Additions
Create a quiet retreat with storage that actually works—no awkward step-downs or trim mismatches.
Second-Story Additions & Dormers
Add bedrooms, baths, or a loft while keeping rooflines balanced and structure reinforced properly.
Family Rooms & Sunrooms
Light-filled living space tied cleanly into existing HVAC, electrical, and finishes.
Garage Additions & Conversions
Attached or detached builds, or thoughtful conversions with proper insulation and egress.
Craftsmanship Standards
Laser-straight framing and proper fastening schedules
Flat, level floors (subfloor prep verified before finishes)
Airtight penetrations, correct flashing, and water management
Smooth drywall, crisp paint lines, and quiet, aligned doors
Hardware placed consistently; cabinetry set/leveled with tight reveals