Every project starts with a number you can trust.
Cornerstone brings institutional-grade preconstruction and project management to multifamily and residential redevelopment. Metro Detroit-based, built to scale.
Services
Preconstruction
The cornerstone of every project. A signed scope, an independent takeoff, three or more verified bids per trade, supplier pricing with lead times, a real schedule, and a draw plan aligned to your lender. You keep every bid. Credited 100% when you build with us.
See pricing & get an estimateGeneral contracting / CMAR
General contracting or construction management at risk (CMAR): one contract, one accountable builder. We hold the trade contracts, run the schedule, and administer draws, lien waivers, and change orders on AIA-standard documents.
Learn moreOwner's rep / construction management
Already hired a GC? We sit on your side of the table: neutral oversight, quality control, draw review, and coordination with your lender.
Learn moreProcurement & logistics
For GCs and owners who want materials handled: vendor pricing, purchasing, lead times, delivery, staging, and change-order procurement through closeout.
Learn moreSelected projects
Downriver multifamily portfolio
281 units across three communities in Inkster, Lincoln Park, and Riverview. Preconstruction, estimating, scheduling, purchasing, permitting, subcontractor management, and quality control from start to finish.
The Park
Poet Place
Trumbull Terrace
Single family & infill · 1–4 units
The same estimating and project controls, applied to houses, duplexes, and new infill.
BEFORE
AFTERWade Manor, Inkster · unit kitchen
Why Cornerstone
A cornerstone is the first stone set in a building. Every other stone is placed in reference to it. That's what preconstruction is for a project, and what we aim to be for our clients.
“For which of you, intending to build a tower, sitteth not down first, and counteth the cost, whether he have sufficient to finish it?”
LUKE 14:28
Transparency
Labor and material separated. The source behind every number disclosed.
Precision
Every number traces to a completed project or a current price.
Partnership
Your budget is the constraint we design around. If it's hard to reach, we say so early.
Accountability
We stand behind every figure, from the first estimate through closeout.
How we're organized
Led by licensed builders and construction managers with deep Detroit multifamily experience, and backed by a growing network of vetted trade partners.
Strategy & estimating
Scope, schedule & budget
Quality & jobsite control
Procurement & compliance
More jobs. Less paperwork.
Join the Cornerstone Trade Network for free bid invites on single-family, infill, and multifamily projects. We handle the marketing, estimating, client, and paperwork. You focus on the work.
Defined scopes
Detailed estimates and clear scopes before you bid.
Materials handled
Procurement, delivery, and staging run by our logistics team.
We manage the client
Lien waivers, sworn statements, and reporting handled by us.
Fast approvals
Pay apps approved within 48 hours of verification.
Count the cost first.
Free Preliminary Estimate* · your report 24–48 hours after the site walk.