Tri-Cities, WA • Riverfront & Flood Plain Engineering
Flood Plain Floor Plans & Structural Specifications
Some of the best land in the Tri-Cities sits close to the Columbia, Snake and Yakima rivers. Building there takes more planning than building on a finished subdivision lot. The plans on this page are a starting point. The land always comes first, and the house is designed to fit it.
Years Combined Experience
Custom Homes Built
Architectural Plans Available
SCALE 1/4″ = 1′-0″
How We Approach a Lot Near the River
Anasazi Builders is a family-owned custom home builder based in Pasco. John Worlund started in construction at 17, and his son Stephen started at 16. Between them they have close to 80 years of hands-on experience. They have built more than 250 homes and projects in Washington, Idaho, North Dakota and Alaska, and they have been operating as Anasazi Builders since 2014.
Before anyone draws a line on a floor plan, John visits the property himself. The site shapes every decision after that. On a lot near the river, he looks at the same things he checks on any lot, and the answers matter more here:
House Placement
Where the home sits on the lot, how it faces for optimal natural light and views, and how the driveway and approach run.
Grading & Drainage
Eastern Washington soils are mostly fine-grained silt, and drainage works very differently on flat agricultural land than on a hillside lot.
Setbacks & Easements
Property lines, river rights-of-way, and utility easements that legally define and constrain where the structure can be positioned.
Septic & Well Access
On lots without municipal city sewer, septic reserve placement takes up a significant share of the total buildable land area.
Permit Jurisdiction
Determining whether the parcel lies inside city municipal limits or in the county determines the exact regulatory office and code standards.
On lots near the river, our site evaluation confirms the lot’s flood zone status with the local permit office before design begins. This ensures the finished floor height and foundation engineering are accounted for from day one.
Where We Build and Who Reviews Your Permit
We build across the Tri-Cities and Eastern Washington: Pasco, Kennewick, Richland, West Richland, Benton City, Prosser and Burbank. Your lot’s location decides which office handles the permit, and we handle every permit for you.
Franklin County
Pasco & Nearby Rural Areas
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Inside Pasco City Limits:
Reviewed by the Pasco Community Development Department. -
Unincorporated Franklin County:
Reviewed by the Franklin County Building Division.
Benton County
Kennewick, Richland, West Richland, Benton City, Prosser
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City Lots:
Processed through each individual city’s building department. -
Rural & Unincorporated Lots:
Including the Benton City to Prosser corridor, handled through the Benton County Department of Planning.
Walla Walla County
Burbank & Two Rivers
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River Confluence Lots:
Parcels near where the Snake and Columbia rivers meet fall under Walla Walla County. -
Timeline Management:
As a smaller permit office with variable schedules, we factor in dedicated extra time to keep the project on track.
Floor Plans and Specifications
These architectural floor plans are designed to ignite the conversation. Every design is fully customizable to your lot’s topography, river vistas, and elevation requirements.
RIVERVIEW CONTEMPORARY RAMBLER
Architectural Plan Set
The Columbia River Series
PLAN REF: AB-2840
2,840 sq ft
4 Bed • 3.5 Bath
3-Car Oversized
Engineered Flood Plain
SNAKE RIVER DAYLIGHT RETREAT
Architectural Plan Set
The Yakima River Craftsman
PLAN REF: AB-3420
3,420 sq ft
5 Bed • 4 Bath
4-Car / RV Bay
Raised Stem Wall + Sump
MODERN RANCH & SHOP PLAN
Architectural Plan Set
The Tri-Cities Estate Series
PLAN REF: AB-3890
3,890 sq ft
4 Bed • 4.5 Bath
Attached Shop + 3-Car
Engineered Monolithic Post
From Lot Review to Final Plan
A clear, dependable timeline with a single point of accountability from day one through handover.
First Conversation
You call or email and tell us about the land: where it is situated, which utilities are already present, and roughly what kind of home you envision.
Site Evaluation
John walks the property and checks placement, drainage, grading, setbacks, septic reserve, and utility access. On lots near the river, flood zone requirements are verified as part of this step.
Plans and Design
We adjust one of our existing plans, select another from our 500+ library, or design a custom layout from scratch with our architects. You review full 3D renderings before building begins.
Permits
We submit documentation to the appropriate city or county office and manage every permit required: septic, well, structural, and building permits.
Construction and Delivery
Construction typically spans 5 to 6 months, with the entire turnkey process taking 8 to 10 months. We coordinate every milestone inspection, delivering the keys to a move-in-ready home.
Talk to John About Your Lot
If you own land near the river, or you’re looking at a parcel and aren’t sure it’s buildable, ask before you commit. John has helped clients evaluate land before they bought it, and in more than one case that conversation caught a problem before any money changed hands.
Free First Conversation & Site Visit: No fees and zero sales pressure.
Single Point of Contact: John personally directs every phase from first call to final walkthrough.
Dedicated Craft Trade Team: Coordinating nearly 20 vetted subcontractors, most partnered for nearly a decade.