Luxury custom home at dusk with infinity pool

One uncompromising standard · 25+ Years · Millions in luxury residential

25+ Years of Luxury Construction Leadership
Hundreds of Complex Construction Decisions Guided
Trusted Representation
Millions of Dollars Luxury Residential Projects
Kenneth Tarczewski, founder of The Private Build Group

Why Ken

A resume you can't rent, and a loyalty you can't buy.

  • I've sat on both sides of the table — I know how builders think, and how to protect the owner.
  • Judgment earned on projects exceeding $200 million — built alongside one of the country's top builders, on one of the most expensive residential projects in America.
  • Fluent in every trade — from foundation to finish, I speak the language of the people doing the work.
  • Building science and construction methods beyond the industry standard — refined on homes most builders will never touch.
  • You get the founder — every call, every decision, every walk-through.
Meet Ken

Welcome

Bespoke Luxury Home Builder in St. Louis & Owner's Representative in the Midwest and South Florida

The Private Build Group represents owners building exceptional homes throughout the Midwest and South Florida. Whether serving as your independent owner's representative or building a bespoke residence in St. Louis, every decision begins with the same commitment: protecting your vision, your investment, and your experience.

A simple truth

The builder has a representative.
The architect has a representative.
The homeowner deserves one too.

Protecting your investment, preserving your vision, and representing your interests from planning through completion.

Our loyalty is to the owner — not the construction contract.

Private ClientsTrusted AdvocacyLegacy Estates

Explore

A private practice built around a single client at a time.

A quiet standard

Protect the Vision.
Honor the Craft.
Own the Outcome.