25 YEARS OF EXPERIENCE · ST. LOUIS & NAPLES
Crafting homes worthy of a lifetime — and the families that fill them.
The Private Build Group delivers luxury custom homes in St. Louis and represents owners building multimillion-dollar estates in Naples, Florida. Twenty-five years of hands-on stewardship behind every detail.
About
A construction executive who chose the path of personal craftsmanship.
Kenneth Tarczewski III is a results-driven construction executive with more than twenty-five years in the industry — over fifteen of them leading multimillion-dollar luxury residential operations across Southwest Florida's most discerning market.
After scaling, leading, and successfully exiting a construction-related business, Kenneth is dedicating his next chapter to a single proposition: building homes and advising owners with the same uncompromising standard he expects of his own family's house.
He now splits his time between St. Louis — where he builds bespoke custom homes from the ground up — and Naples, Florida — where he represents owners of complex estate projects, protecting their time, capital, and vision.
25+.
Years in Construction
15+.
Years Leading Luxury Projects
2.
Markets · STL & Naples
Markets Served
A presence in two of America's most discerning markets.
Missouri
St. Louis
Luxury Custom Home Builder
Bespoke residential construction for families who want a builder personally accountable for every detail — not a logo on a sign.
Florida
Naples
Owner's Representative
Trusted advocate for owners building multimillion-dollar estate homes in Southwest Florida's most demanding luxury market. Deep expertise in Port Royal, Gordon Drive, and the surrounding enclaves where precision and discretion matter most.
Services
Two practices. One uncompromising standard.
Whether holding the pencil as your builder or holding the line as your advocate, the discipline behind every decision is the same — protect the home, the budget, and the people building it.
01 — St. Louis
Luxury Custom Home Builder
From land acquisition to final punch list, we build bespoke residences for families who refuse to compromise. Architect collaboration, transparent budgeting, master-craftsman execution.
- —Pre-construction & feasibility
- —Architect & designer collaboration
- —Cost control & transparent budgeting
- —Master-craftsman trade network
- —Quality assurance & final delivery
02 — Naples, FL
Owner's Representative
For owners building multimillion-dollar estates, we sit on your side of the table — vetting builders, auditing budgets, managing scope, and ensuring your vision is delivered without compromise.
- —Builder selection & contract negotiation
- —Budget & schedule oversight
- —Quality & change-order review
- —Vendor & consultant coordination
- —Single point of accountability
Planning a build? · Begin with a private, no-obligation conversation.
Schedule a ConsultationNaples · Owner Protection
The hidden risks of building without an advocate.
Multimillion-dollar estates attract multimillion-dollar problems. Kenneth sits on your side of the table — so you never pay for a contractor's mistake, delay, or shortcut.
01
Inflated Pricing & Hidden Markups
Contractors pad estimates, charge retail for wholesale materials, and bury overhead in opaque line items. Kenneth audits every number against market reality — so you only pay what is fair.
02
Mistakes Passed to You
When a subcontractor mismeasures, a trade cuts corners, or a permit gets filed wrong, the cost rarely stays with the contractor — it lands on your desk. Kenneth catches errors before they become your problem.
03
Timeline Games
Delayed schedules mean extended carrying costs, weather damage, and crew turnover. Contractors blame supply chains; Kenneth holds them accountable to the plan and your calendar.
04
Quality Erosion
Without daily, knowledgeable oversight, finishes get substituted, details get skipped, and 'good enough' replaces 'exactly right.' Kenneth inspects every phase like it is his own home.
Core Competencies
The full discipline behind every home.
Build & Deliver
- ◆Luxury Residential Construction
- ◆High-End Custom Homes & Estates
- ◆Project Planning & Execution
- ◆Quality Assurance & Quality Control
- ◆Safety Program Development
Represent & Protect
- ◆Owner Representation
- ◆Contract & Vendor Management
- ◆Budgeting & Cost Control
- ◆Scheduling & Resource Management
- ◆Client Relations & Stakeholder Communication
Lead & Grow
- ◆Director of Operations Leadership
- ◆Team Building & Workforce Development
- ◆Inventory & Asset Management
- ◆Construction Management
- ◆Business Development & Revenue Growth
Philosophy
"A luxury home isn't measured in square footage or finishes — it's measured in the trust the family places in the person building it. That responsibility doesn't get delegated."
Kenneth Tarczewski III
Contact
Begin the conversation.
Whether you're planning a new home in St. Louis or evaluating a builder for your Naples estate, every project begins with a private, no-obligation conversation.
- St. Louis
- Luxury Custom Home Construction
- Naples, FL
- Owner's Representation Services
- Phone
- (239) 777-0863