FranchiseFree Consultation Your home. Your vision. Your equity.
Save $100K+* Building a Custom Home
A guided owner-builder program created to help you build with clarity, confidence, and the potential to save $100K+.
A smarter way to build custom
You don’t need to become a contractor. You need the right team behind you.
Traditional builders often add substantial overhead and markup. CMGWA gives qualified Washington homeowners a different path: you remain the owner-builder while we provide the professional structure, systems, and guidance that keep the build moving.
Based in Castle Rock and serving owner-builders throughout Washington—including Cowlitz, Lewis, and Clark counties—we help you understand what comes next, what it should cost, and which decisions need your attention from early design through occupancy.

Featured custom home
A perfectly balanced 2,400 sq. ft. ranch.
Four to five bedrooms, 3½ to 4½ bathrooms, upgraded finishes and a generous outdoor-living connection—all customizable for your property through our owner/builder program.
Homes we’ve helped bring to life
Real Washington projects. Individual visions.
Every home starts with a different property, plan and set of priorities. These are homes CMGWA has supported through construction-management guidance.
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Landscaping auto-generatedYes—we have testimonials and past clients who love singing our praises. Ask us to connect you with references during your free consultation.
Potential savings
Put that money into your home—not unnecessary markup.
Your actual savings depend on the home, location, finishes, bids, market conditions, and work you choose to complete yourself.
Built around the decisions that matter
Everything your custom build needs to move forward with confidence.
Lender-ready budget
After your design meeting, we build a detailed construction budget you can take to your lender.
Financing connections
We introduce qualified clients to lenders familiar with owner-builder loans and our project-management program.
Competitive contractor bids
Choose contractors you trust, or let us request two to three bids per trade from our regular network.
Build oversight
We guide the budget, bid process, schedule, decisions, documentation, and critical milestones.
Owner Build Manager
Your budget, schedule, bids, takeoffs, selections, and files stay organized in one purpose-built app.
Your equity, your choices
Put in sweat equity and select your own licensed, bonded, and insured contractors.
PROJECT OVERVIEW
Your Custom Home
Powered by Owner Build Manager
Your entire build, finally in one place.
No scattered spreadsheets. No wondering what comes next. See your budget, schedule, bids, takeoffs, selections, and documents in one organized workspace.
Transparent from day one
One flat $25,000 project-management fee.
No percentage-based contractor markup. Payments follow the progress of your build.
Design meeting, lender-ready budget, lender introductions, and contractor bid gathering.
Due when the framing inspection has successfully passed.
Final payment when your occupancy permit is issued.
Blueprint-design guidance is also available for $1.50 per square foot.
Common questions
What Washington owner-builders want to know.
What does an owner-builder construction manager do?
CMGWA provides the budgets, bid support, scheduling systems, documentation, and milestone guidance that help you manage your own custom home build with confidence.
Can I choose my own contractors?
Yes. You can select your own licensed, bonded, and insured contractors or ask us to gather competitive bids from contractors in our network.
Do you help with financing?
Yes. We can introduce qualified clients to lenders familiar with owner-builder construction loans and prepare a detailed, lender-ready construction budget based on your plans and design meeting. The lender determines eligibility, approval, rates and loan terms.
Do you help with permits?
Yes.
How much can I save as an owner-builder?
Savings vary by project, location, finishes, bids, and the work you complete yourself. Qualified projects may have the potential to save $100,000 or more compared with traditional contractor markup.
Where does CMGWA provide owner-builder services?
CMGWA is based in Castle Rock and serves qualified owner-builders throughout Washington, with a focus on Cowlitz County, Lewis County, and Clark County. Service is subject to local lending, permit, and owner-builder requirements.
How do I get started?
Schedule a free, no-pressure Zoom or in-person consultation. We’ll discuss your plans, location, financing goals, and whether the program fits your project.
It starts with a conversation
Tell us about the home you want to build.
We’ll talk through your idea, your location, your financing goals, and whether our owner-builder program is the right fit—at no cost and with no pressure.
Schedule a Free Consultation Free • No pressure • Approximately 60 minutes