Premier Home Additions and ADU Construction in Hillsboro, OR
Is your family outgrowing your current space, but you love your location near the Silicon Forest? You are not alone. Many homeowners face the dilemma of needing more square footage without the hassle of uprooting their lives. At JRW Construction, LLC, we specialize in Home Additions and ADU Construction in Hillsboro, transforming cramped layouts into spacious, functional dream homes. Whether you need a master suite expansion or a detached unit for aging parents, our team provides the construction credibility and local expertise required to alleviate your space-related pain points and increase your property value.
- ABOUT DETAIL
Navigating Hillsboro’s Zoning and Building Challenges
Building in Washington County presents unique challenges that require a contractor with deep local experience. Hillsboro has specific density requirements and zoning codes designed to accommodate the city’s rapid growth while preserving neighborhood character. From navigating strict setbacks in historic downtown areas to managing drainage requirements in newer developments near Orenco Station, we handle it all. JRW Construction, LLC manages all permitting with the City of Hillsboro and Washington County Land Use & Transportation. We ensure your project complies with all local regulations—including SB 1051 regarding accessory dwelling units—so you can focus on the excitement of your new space, not the red tape.
Our Expert Home Additions and ADU Construction Solution for Hillsboro Homes
At JRW Construction, LLC, we view every project as a partnership. We understand that a remodeling contractor must be as communicative as they are skilled. Our process begins with a comprehensive site evaluation to understand the structural capabilities of your existing home. We solve common Hillsboro housing problems—such as outdated layouts and lack of multi-generational living space—by integrating modern design principles with robust engineering.
We utilize high-quality, locally sourced materials suited for the Pacific Northwest climate. This includes utilizing moisture-resistant Douglas Fir framing and advanced flashing techniques to protect your home additions from Oregon’s rainy seasons. As a premier expert in home remodeling, we focus on seamless integration. We don’t just tack on a room; we ensure the new structure matches your existing roofing lines, siding, and architectural style. By combining energy-efficient windows with superior insulation packages, we ensure your new addition or ADU is comfortable year-round, ultimately lowering your long-term utility costs.

- DETAIL SERVICES
Our Comprehensive Construction Services in Hillsboro
General Contractor
As your dedicated general contractor, we oversee the entire lifecycle of the build, coordinating schedules and inspections to keep your project on track.
Framing
Our precision framing services provide the structural skeleton necessary for safe, durable, and code-compliant residential builds.
Construction Contractor
We are the construction contractor of choice for homeowners demanding transparency, safety, and superior craftsmanship on every job site.
Home Improvement
From exterior facelifts to structural upgrades, we enhance the curb appeal and functionality of your Hillsboro property.
Home Additions
We specialize in expanding your footprint, creating seamless home additions that blend perfectly with your original structure.
ADU Builders
As experienced ADU Builders, we design and construct versatile accessory dwelling units perfect for rental income or guest housing.
Maximize Value with a Custom ADU in Hillsboro
In the competitive Hillsboro real estate market, maximizing your lot’s potential is a smart financial move. A luxury guest cottage or detached ADU is not just a trend; it is a long-term investment strategy. While many competitors focus strictly on standard renovations, JRW Construction, LLC specializes in the “Gap Strategy” of utilizing underused backyard space.
With the influx of tech professionals moving to the area, the demand for private, high-quality rental units is skyrocketing. We help you capitalize on this by designing ADUs that offer complete independence and privacy. Whether you are looking to generate passive income or create a comfortable “granny flat” for family, an ADU significantly boosts your property appraisal value. We handle the complex utility connections and separation requirements specific to Hillsboro, delivering a turnkey solution that competitors often overlook.
Transform Your Home and business with Expert Builders – Get Started!
Why JRW Construction, LLC is the Trusted Choice for Hillsboro
When you choose a contractor, you are inviting them into your personal sanctuary. Here is why Hillsboro neighbors trust us:
01.
Local Code Expertise
We have an in-depth understanding of Washington County building codes, ensuring your project passes inspections the first time.
02.
Materials Selection
We use premium materials designed to withstand the Pacific Northwest weather, preventing future rot or mold issues.
03.
Project Management
Our team respects your time. We stick to timelines and maintain a clean, safe job site to minimize disruption to your daily life.

Our Clients’ Satisfaction Means Everything to Us.
- FREQUENTLY ASKED QUESTION
Here's our common question we had
1. How much does it cost to build a custom ADU in Hillsboro?
Costs vary based on size (detached vs. attached) and finishes, but generally, ADUs in Hillsboro are a significant investment that offers high returns. We provide a detailed, line-item proposal after our initial site visit so you know exactly where your budget is going.
2. Do you handle permitting with Washington County?
Yes. As your full-service remodeling contractor, JRW Construction, LLC handles all permitting and zoning applications with the City of Hillsboro and Washington County, ensuring your build is fully legal and compliant.
3. Can I build an ADU on my property in Hillsboro?
Most residential zones in Hillsboro now allow for ADUs due to changes in Oregon state law (House Bill 2001). However, specific setbacks and lot coverage limits apply. We can assess your specific lot to determine feasibility.
4. How long does a typical home addition take to complete?
A standard room addition typically takes 3 to 5 months from groundbreaking to completion, depending on complexity and weather conditions. We provide a projected timeline before we begin.
5. Do you offer design services for home additions?
Yes, we work with trusted architects and designers to help visualize your home improvement project before construction begins, ensuring the final result matches your vision.

Serving Hillsboro Neighborhoods
Beaverton
Scholls
Raleigh Hills
Protect Your Investment and Expand Your Space
Don’t let a lack of space force you out of the home and neighborhood you love. Protect your investment and future-proof your living situation today. Whether you need a second-story addition or a standalone ADU, we have the expertise to make it happen. Call JRW Construction, LLC at 503-535-9390 for your free, no-obligation consultation and site inspection!
