About SG Home Builders
A small team. A focused mission. Homes built right.
SG Home Builders was founded on a straightforward idea — that the custom home process should be transparent, well-managed, and free of the surprises that define too many builds. Nearly 20 years later, that idea still drives everything we do.
Our Story
Built from experience — and a frustration with how things were being done.
SG Home Builders was founded in 2007. SG Home Builders was started out of a frustration of watching clients navigate a custom home process that left too much to chance. Budgets were set without real construction context. Architects and builders worked in separate silos. Clients made expensive commitments before anyone had honestly assessed whether their vision and their budget could meet.
The solution was a different kind of builder — one that got involved early, stayed involved throughout, and treated the client's investment with the same seriousness the client did. That meant integrating real estate, financial analysis, design, and construction under one roof, with one team accountable for the outcome.
Today SG builds custom homes and major additions across Chicagoland's western suburbs — Naperville, Hinsdale, Oak Brook, Glen Ellyn, and surrounding communities. The team is small by design. Every client works directly with the people building their home, from the first conversation to the final walkthrough.
The Team
The people behind every project
Owner & Founder
Ryan Siebert
With SG since 2007 · 20 years in the industry
Ryan founded SG Home Builders with a clear goal: bring financial discipline and construction strategy together earlier in the process than most builders ever do. His background in real estate and finance gives clients a rare advantage — an owner who can evaluate a lot, frame a realistic budget, and model project costs before any commitment is made.
Ryan leads every client relationship at SG from the first conversation through delivery. He is the person clients call when they have questions, and the person accountable when they don't have to.
Budget forecasting
Cost tracking
Real estate strategy
Financial analysis
Lot evaluation
Superintendent
Greg Jensik
With SG for 10 years
Greg runs every job site for SG — coordinating trades, managing build sequencing, and holding quality standards at each phase of construction. A decade in the field with SG means he has seen every variable a Chicagoland build can throw at a project, and he approaches each one with the same methodical calm.
Clients who visit their site regularly come to know Greg as the person who knows exactly where everything stands — and exactly what comes next.
Trade coordination
Quality oversight
Build sequencing
Interior Design & Pre-Construction
Danielle Harmon
With SG for 3 years
Danielle bridges the gap between design intent and construction reality — the phase where most builds run into trouble. She manages the pre-construction process from finalized plans through the start of construction, ensuring that every material selection, finish specification, and interior decision is documented, coordinated, and ready before work begins.
Her eye for design and her process discipline are a rare combination — and clients feel the difference throughout their build.
Pre-construction
Selections management
Client experience
Administration & Operations
Renata Poplawska
SG Home Builders
Renata keeps SG running behind the scenes — managing bookkeeping, inventory, vendor records, and the operational details that allow the rest of the team to stay focused on building. She is the organizational backbone of the company, and her attention to accuracy and process is what makes SG's back office as reliable as its job sites.
Clients may not always interact with Renata directly, but they benefit from her work at every stage of their project.
Inventory management
Administration
Operations
How we work
What clients can expect from SG
Early involvement, by design
SG is most valuable before a lot is purchased or plans are finalized. Getting involved early is not an upsell — it is how we prevent the most common and costly problems a custom home project faces.
Honest numbers from the start
Budget conversations happen at the beginning of every engagement, not at the end. Clients deserve to know what their project will actually cost before they are committed to it.
A small team with direct accountability
Every client at SG works directly with the people building their home. There is no hand-off to a project manager they have never met. The same team that starts the project finishes it.
Communication that doesn't require chasing
Clients are updated consistently throughout the build — not only when something needs a decision. Proactive communication is a standard, not a service level.
Want to work with this team?
A first conversation with SG costs nothing and commits you to nothing. It is simply the right place to start.
Or call Ryan directly: 847-602-7641