Building Sustainable, Wellness-Focused Homes Across Washington, Oregon & Arizona

Your home should protect your health, comfort, and investment, not just look good on day one. At Marnella Homes, we design and build custom homes, remodels, and additions that perform as beautifully as they look, using proven building science and transparent communication at every step.

The Problem With Most New Homes

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Building a home is one of your most significant investments. Yet most builders focus on aesthetics while ignoring performance. The result? Homes that feel drafty in winter, stuffy in summer, and rack up energy bills year after year.

You deserve better than:

  • Vague promises about being “green” with no proof
  • Cost overruns and surprise charges mid-project
  • Poor communication that leaves you guessing
  • Homes that look great but perform poorly

We take a different approach. As home builders in the Portland/Vancouver metro area, we invest heavily in design and planning upfront, using energy modeling, air-sealing strategies, and HVAC integration to solve problems before construction begins, not after you move in.

Services Built Around How You Live

Energy Efficient Custom Homes

Designed around your lifestyle with detailed energy modeling, health-first materials, and superior indoor air quality.

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Additions & ADUs

Expand your space with multi-generational additions or accessory dwelling units that match our custom home performance standards.

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Custom Townhome & Community Development

Marnella Homes specializes in thoughtfully designed townhomes and small-scale residential communities. Each project balances efficient land use, modern design, and high-quality construction. The focus is on creating comfortable, low-maintenance homes within well-planned neighborhoods that enhance lifestyle and long-term value.

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Coastal & Complex-Site Builds

Specialized expertise for challenging environments, from high-wind coastal locations to difficult inland sites.

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Our Process: Clear, Collaborative, Proven

1. Discovery

We listen to your goals, budget, and timeline, then provide honest, practical feedback.

2. Smart Design

We create detailed plans with energy modeling and HVAC design, aligning aesthetics with building science.

3. Fixed-Price Proposal

You receive a transparent, detailed proposal with realistic allowances with no lowballing or hidden costs.

4. Quality Construction

Scheduled walkthroughs at key milestones keep you informed. Problems are solved with a calm, solutions-first approach.

5. Long-Term Partnership

A third-party 10-year structural warranty provides peace of mind, and we remain available to answer any questions that arise..

A showcase of thoughtfully designed, energy-efficient homes built for modern living.

Why Homeowners Choose Us

Performance You Can Measure

Energy modeling and third-party verification on every project, not just marketing claims.

Most of our work happens before construction starts, preventing costly surprises and hidden compromises.

Regular updates, honest conversations, and a professional attitude when challenges arise.

From  Vancouver, WA, to the Oregon coast, we understand local climates and build accordingly.

Frequently Asked Questions

What makes a high-performance home different?

It’s designed as a complete system in which insulation, air sealing, windows, HVAC, and ventilation work together to achieve even temperatures, cleaner air, and lower energy costs.

Primarily  Vancouver, SW Washington, and selected Oregon locations. Contact us to confirm whether your property is within our service area.

Absolutely. We collaborate with existing plans and apply our performance expertise to improve comfort and efficiency without compromising your vision.

After finalizing the design and specifications, we provide a detailed, fixed-price proposal based on the agreed selections, so there are no surprises.

What Homeowners Say

Built on Trust. Inspired by You.

Our homeowners are at the heart of everything we do. From thoughtful design to lasting quality, their stories reflect our commitment to creating homes that nurture well-being, comfort, and pride. Hear what makes the Marnella Homes experience truly exceptional.

Ready to Start?

When you reach out, you’ll get a discovery call to discuss your project, a follow-up planning meeting if we’re a good fit, and clear expectations on process, budget, and timeline. If you want a builder who treats your home like an engineered system, not a rushed project, let’s talk

Marnella Homes: Building sustainable, high-performance homes in the Vancouver Metro area that take care of your family for decades to come

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