Additions
Expand Your Living Space with Precision Design.
You don’t have to move to get the home you need. Whether you are welcoming a new family member, need a dedicated home office, or want to increase your property value with an Accessory Dwelling Unit (ADU), a well-planned addition is the answer.
Serving Woodburn, Salem, Portland, and the surrounding Oregon communities, we turn complex local codes into clear, buildable plans.
Room Extensions
Expand your kitchen, add a master suite, or widen your living area. We design seamless extensions that blend with your existing architecture.
Second Story Additions
"Build up" instead of out. We calculate the necessary structural changes to add a full new level to your home safely.
Garage Conversions
Turn that underutilized storage space into a functional living area. We handle the code requirements for insulation and egress.
Our Process For Your New Addition
An addition is more complex than new construction because it must tie into an existing structure. Here is how we ensure success:
On-Site Consultation
We start by measuring your existing home. Accurate "As-Built" drawings are critical to ensure the new addition aligns perfectly with your current foundation and roofline.
Design & 3D Modeling
We draft the initial layout. Using 3D modeling tools, we help you visualize how the new space will flow and look before a single nail is hammered.
Code Compliance
We refine the plans to meet the Oregon Residential Specialty Code. This includes energy calculations, seismic bracing considerations, and prescriptive design standards.
Permit-Ready Docs
You receive a full set of plans—including site plans, floor plans, elevations, and cross-sections—ready to submit to your city or county building department
Frequently Asked Questions
Everything you need to know about the planning and permitting process in Oregon.
Do I need a permit for a small addition in Oregon?
Yes. Any change to the "footprint" of your home, or structural changes to load-bearing walls, requires a permit. We provide the specific drawings (Site Plan, Floor Plan, Section View) your local jurisdiction requires to approve the project.
What is the difference between a Drafter and an Architect?
For most residential additions, an architect is not strictly required. A professional drafter/designer like Topline provides the technical drawings needed for permits and construction, often at a lower cost, while still ensuring code compliance and beautiful design.
Can you help with 'legalizing' an unpermitted addition?
Yes. We can perform a site visit to measure the existing work and create "retroactive" permit plans to help you get your records up to date with the city.
Words from Our Valued Clients
Let's Bring Your Vision from the TOP!