Oregon Duplex Builder
Double the Value, Double the Living
Why Build a Duplex in Oregon?
HiLine Homes is a trusted Oregon duplex builder with years of experience in custom home construction, offering thoughtfully crafted duplex house plans that suit both investment properties and families seeking flexible multifamily housing or ADU options.
A duplex is a single residential building designed to hold two separate living units. It can be built side-by-side or in a two-story configuration, each with its own entrance and living space. This shared structure reduces construction and land costs while offering independent living areas for more than one household.
Advantages of Building a Duplex
With HiLine Homes, you’re not just building a house—you’re building a partnership grounded in integrity, expertise, and your long-term success.
Rental Income Potential
Building a duplex in Oregon is a smart way to build equity and grow your portfolio of investment properties while creating a sustainable path to homeownership.
Option for Multigenerational Living
Duplexes allow loved ones to stay close while maintaining their own privacy and independence.
Maximize
Land Use
A duplex enables homeowners to make the most of their property, particularly in urban or suburban areas where space is limited.
Long-Term Value and Investment
Duplexes are a versatile asset during the rising demand for affordable housing, as they adapt to your needs over time as a rental property or a multifamily housing.
On Your Lot, On Time, Built Right!
At HiLine Homes, your vision matters—and we’re here to make sure it’s realized with confidence, clarity, and care.
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Duplex Floor Plans and Options
Single-Story vs. Two-Story Duplex Plans: When choosing between a single-story duplex and a two-story duplex, consider your family’s lifestyle and evolving needs.
Single-Story Duplex
A single-story duplex plan is ideal for accessibility, as it offers all living spaces on one level, making it perfect for families with young children or aging adults.
- Our Home Plan 2400 is a thoughtfully designed, single-story duplex plan featuring two identical units—each offering approximately 1,200 sq. ft., 2 bedrooms, 2 bathrooms, and a single-car garage. This versatile floor plan is ideal for generating rental income and accommodating extended families.
Two-Story Duplex
A two-story duplex plan offers more separation between living areas and bedrooms, creating a greater sense of privacy and space for you and your family.
- If you’re looking for a two-unit duplex equipped with everything you need, look no further than our Home Plan 3322. With a total of 3,322 square feet, this multi-generational home has three bedrooms, 2.5 bathrooms, and a 1-car garage for each unit.
Shared Wall Benefits: How Tenants Benefit From Living in Duplex Homes
While some renters may initially lean toward a detached single-family home, many discover that duplex living offers practical advantages that are hard to ignore. From lower monthly costs to reduced maintenance responsibilities, a well-designed duplex can be a smart and comfortable choice.
If you’re a real estate investor, here are a few key benefits you can highlight to help potential tenants feel confident in their decision:
- Energy Efficiency
Shared walls offer better insulation and reduce energy loss—leading to lower utility costs.
- Lower Maintenance
Fewer exterior surfaces mean less upkeep for siding, painting, and weatherproofing.
- Budget-Friendly
A duplex house typically has a lower price point per unit compared to two standalone homes, making it a smart option for budget-conscious buyers.
- Built-in Community
Living close to others can foster a stronger sense of neighborhood and support.
Cost to Build a Duplex in Oregon
At HiLine Homes, we’re committed to making building your duplex as smooth and accessible as possible—including the financial steps. That’s why we offer exclusive financing assistance through our trusted network of approved lenders, many of whom provide up to 100% financing packages tailored for home construction loans.
We simplify the process with an easy-to-use pre-qualification form that allows you to submit essential information directly to your lender, saving you time and moving your project forward with confidence.
To help you secure the construction home loan you need, our team will also assist with gathering and submitting the necessary documents to your appraiser. This step is key to unlocking equity in your new home, setting the foundation for long-term value and financial peace of mind.
Zoning and Approval Help
According to Oregon Revised Statutes 197A.420, homeowners in cities with 2,500 residents or more are permitted to build a duplex on their property.
- Eligibility to Build a Duplex
Through this law, anyone who owns land in a qualifying city is eligible to build a duplex house on it, providing them with an opportunity to generate rental income, house extended family, or own a long-term investment.
However, homeowners must comply with local regulations regarding the location and construction of duplexes, such as height restrictions and utility access rules.
As a comprehensive home-building service, your assigned Home Consultant at HiLine Homes helps you navigate your permitting and approval process, from verifying zoning requirements to submitting site plans and coordinating inspections. With an expert guiding you through every step, we ensure your duplex building experience is streamlined.
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Ready to reap these benefits?
Connect with our HiLine Home Consultant today. We are dedicated to bringing your dream vision to life with quality, care, and nearly 30 years of experience behind it.