Building Thriving Communities with Certainty

Ground-up construction and design-build for multifamily developers. One team. Clear communication. On-time delivery.

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WHO WE ARE

Built to deliver.

Sigma Build brings institutional-quality execution to ground-up multifamily construction. We carry preconstruction, procurement, field execution, closeout, and warranty.
 
Certainty is not a promise we make. It comes from how we are built. As Alpha Residential’s construction affiliate, our work is not measured at turnover. It is measured by how it performs for the next decade. Our partners receive that same discipline: alignment, transparency, and commitment to on time and on budget execution.

WHAT WE DO

Ground-up construction

Full-scope multifamily delivery: site work and utilities, foundations, framing, MEP systems, finishes and certificate of occupancy. We run buyout, long-lead procurement, submittals and closeout on every project. Garden, townhome and mid-rise today, with urban podium in pre-construction.

Pre-Construction Services

We are engaged by the Owner at feasibility to assist with optimizing the plans that result in shorter timelines, fewer coordination gaps, and tighter controls for the partners.

HOW WE WORK

From concept to certificate of occupancy.

1

Pre-construction

Budgets, schedules, permits, value engineering

2

Design

Architecture, engineering, interior selections

3

Construction

Full execution, weekly updates, on-site management

4

Closeout

Punch list, inspections, certificate of occupancy, turnover

PAST PROJECTS

Apex Newbury – South

Location: Bridgeville, PA
Type: Multifamily
Scope: 277 units/ 304,408 gsf
Project Start: July 2024
Project Completion: April 2026

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PROJECT PIPELINE

What we’re building next.

PRE-CONSTRUCTION

Apex Newbury – North

Bridgeville, PA · Multifamily · 139 Units

Apex Diamond Ridge

Moon Township, PA · Multifamily · 298 Units | 51 Townhomes

Apex Roselyn

Gibsonia, PA · Multifamily · 204 Units

Apex Riverstone

Nashville, TN · Multifamily · 462 Units

Bidding Opportunities

Explore open bids for active projects and apply directly.

Open Bid Portal

LET’S BUILD SOMETHING TOGETHER