📍 Washington State · Last updated today
$198,400
Realistic range: $172,600 – $238,100 · $826/sqft
Size
Compact · 240 sqft
Style
Cottage 🌿
Foundation
Concrete Slab
Insulation
Fiberglass Batt
Windows
Standard Double Pane
Roofing
Arch. Shingle
Kitchen
Functional
Bathroom
Spa-Inspired
Energy
Grid-Tied
Deck
Entry Deck
Cost history
Today+$1,840 (lumber)$198,400
Last week$196,560
Last month$193,200
When I started$188,400
Your build alerts
We monitor material prices, financing rates, new products, and builders in your area — and update your plan automatically.
Lumber prices rose 4.2% in Washington this month
Your framing cost estimate has been updated to reflect current Pacific Northwest market conditions.
↑ +$1,840 to your estimate
2 hours ago
New aerogel window product — better than triple pane
Alpen Windows released a new aerogel-insulated unit with R-20 performance at 15% lower cost than standard triple pane.
↓ Could save $2,100 vs current selection
Yesterday
New vetted builder added in Clark County, WA
Cascade Tiny Builds joined our network. Average bid runs 9% below regional estimates with a 14-week build timeline.
2 days ago
USDA Rural Development loan rates dropped to 5.9%
Based on your Washington build location, you may qualify. Monthly payment on your estimate: ~$1,240/month over 20 years.
↓ Lower than last month's 6.4%
3 days ago
Washington solar incentive — 30% federal tax credit extended
Adding solar now qualifies for the extended IRA tax credit. On an off-grid solar selection this saves $10,200.
↓ Saves $10,200 on solar selection
1 week ago
Personalized for your build
Based on your Washington Cottage configuration — ways to lower costs, improve performance, or incorporate new products.
Switch insulation to hybrid closed-cell + rigid foam
Save Money
A hybrid approach outperforms full spray foam in your climate zone at 18% lower cost. Better vapor control for Pacific Northwest moisture.
↓ Saves ~$1,800 · Better performance for WA climate
See the comparison →
Structurally Insulated Panels (SIPs) — faster build, better envelope
New Product
SIP construction has come down 12% in cost over the past year and reduces build time by 3-4 weeks. Works especially well with your Cottage style.
↓ Saves ~$3,200 in labor · Ships in 6 weeks
Add to my plan →
Personal construction loan pre-qualification available
Financing
Based on your $198,400 estimate, you may qualify for a $220K construction loan with 10% down through our lending partners.
↓ ~$1,380/month · No land required as collateral
Check my eligibility →
Prefab bathroom pod could cut bathroom costs by 35%
Save Money
Prefab wet rooms have improved dramatically. Your spa bathroom selection could be matched with a pod that arrives fully assembled, reducing on-site labor.
↓ Saves ~$2,600 · Same quality, faster install
See options →
Financing options for your build
Based on your $198,400 Washington estimate. Rates updated weekly. Starting points only — actual rates depend on your credit and lender.
USDA Rural Development
5.9%
Low-income and rural housing loan. Washington state eligible areas include most of Clark County outside Vancouver city limits.
~$1,240/month on $198K · 20-year term
Best Rate Available
Personal Construction Loan
7.4%
No land required as collateral. Fixed rate, funds released in draws as build progresses. Most flexible option for THOW builds.
~$1,560/month on $198K · 20-year term
Most Flexible
RV Classification Loan
8.1%
For THOW builds only. Classified as recreational vehicle — lower down payment, faster approval. Works with most RV lenders.
~$1,680/month on $198K · 20-year term
THOW Only
Honest disclaimer
These are illustrative rates based on current market data. TinyHomes.com is not a lender. Always verify current rates directly with lenders and consult a financial advisor before committing to financing.
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Complete your design configuration
Floor plan, style, and finishes selected
✓
Set your build location
Washington state regional pricing applied
Research zoning in your target county
Clark County, WA allows THOWs with permit
🔓 Unlocks: County zoning guide
Review your financing options
3 options available for your build size
🔓 Unlocks: Lender introductions
Complete builder readiness checklist
Know what to ask before your first builder call
🔓 Unlocks: Builder match tool
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2 vetted builders available in your area
🔓 Unlocks: Builder profiles + contact