Additions and ADUs Services
in Vancouver, WA
Transform your living space and enhance your property value with our expert Home Additions and Accessory Dwelling Units (ADUs) services in Vancouver, OR. At Alta Casa Remodeling, we specialize in creating functional, aesthetically pleasing spaces tailored to your needs and lifestyle. Whether you’re looking to expand your home, build a guest suite, or invest in a rental unit, our team is here to bring your vision to life.
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Why Choose Us for Your Additions and ADUs?

Expertise in Design and Construction
With years of experience in home additions and ADU construction, we blend innovative design with superior craftsmanship. From initial concept to final build, we ensure every detail aligns with your vision and the unique architectural style of Vancouver homes.

Customized Solutions
We understand that every homeowner’s needs are different. Whether you want to add a new bedroom, expand your kitchen, or create a detached ADU, we provide fully customized solutions that maximize your space and budget.

Sustainability-Focused
Vancouver values eco-friendly construction, and so do we. Our team prioritizes sustainable building practices and energy-efficient designs to create spaces that are not only beautiful but also environmentally responsible.

Compliance with Local Regulations
Navigating Vancouver’s zoning laws and permit requirements can be complex. Our team handles all the necessary paperwork and ensures your project meets local regulations, giving you peace of mind throughout the process.
Our Services
Home Additions
Expand your home to meet your family’s growing needs. We specialize in:
Room Additions
Add extra bedrooms, home offices, or living spaces seamlessly integrated with your existing layout.
Second-Story Additions
Maximize your property’s potential by building upward with a stylish and functional second story.
Kitchen and Bathroom Expansions
Enhance your home’s most-used spaces with modern designs and increased functionality.
Accessory Dwelling Units (ADUs)
ADUs are a versatile solution for additional living space. We offer:
Detached ADUs
Stand-alone units perfect for guest houses, rental properties, or multigenerational living.
Attached ADUs
Extensions connected to your main home, providing added convenience and accessibility.
Garage Conversions
Turn your existing garage into a fully functional living space with custom features.
Our Process
Initial Consultation
We start by understanding your goals, budget, and timeline. Our team will provide a free consultation to discuss your vision and evaluate your
Design and Planning
Collaborate with our experienced designers to create a blueprint tailored to your needs. We ensure every detail, from layout to materials, meets your expectations.
Permits and Approvals
We manage all permit applications and zoning approvals, ensuring a hassle-free process.
Construction and Delivery
Our skilled builders bring the design to life with precision and efficiency. We keep you informed at every stage and ensure the project is completed on time and within budget.
Tailored Additions for Multi-Generational Living in Vancouver, WA
At Alta Casa Remodeling, we specialize in creating tailored home additions and ADUs in Vancouver, WA, designed to meet the unique needs of multi-generational families. Whether you’re looking to add a spacious in-law suite, convert your garage, or construct a fully equipped ADU, we focus on providing innovative solutions that seamlessly blend comfort, functionality, and style.
Our team collaborates closely with you to design and build custom spaces that accommodate diverse living arrangements, offering privacy and convenience for every family member. From cozy granny flats to fully independent ADUs, we ensure every addition maximizes your home’s potential while complementing its original architecture.

Let’s Build Your Dream Space
At Alta Casa Remodeling, we’re committed to delivering exceptional results that exceed your expectations. Ready to start your Additions or ADU project in Vancouver, WA? Contact us today for a consultation and let’s make your vision a reality.
Additions & ADU FAQs
What is an ADU, and can you build one on my property?
An ADU (Accessory Dwelling Unit) is a secondary living space on your property — such as a converted garage, a basement unit, or a detached structure. We design and build ADUs and home additions, handling the project from concept through construction. Feasibility depends on your lot and local zoning, which we review with you early on.
How much does a home addition or ADU cost?
Additions and ADUs vary widely based on square footage, foundation and structural work, and finishes. Because they involve new construction, we put together a detailed, itemized estimate after reviewing your property and goals in a free consultation.
How long does an addition or ADU take?
These are larger projects than a single-room remodel and timelines depend on permitting, foundation work, and scope. We provide a realistic schedule before construction begins and keep you updated throughout.
Do you handle permits and zoning?
Yes. Additions and ADUs require permits and must meet zoning rules — we manage the permitting process and ensure the work meets local building codes.
What areas do you serve?
We build additions and ADUs throughout Vancouver, WA and the surrounding communities — including Felida, Salmon Creek, Ridgefield, Battle Ground, Camas, and Washougal — as well as the greater Portland, OR metro area.
Is your work guaranteed?
Yes. Every Alta Casa project is backed by a one-year workmanship warranty. If an issue arises related to our labor, we make it right.