Home Additions in Sammamish: More Space, More Life

There’s just something about Sammamish. Maybe it’s the way every street feels tucked into the trees, or how life here somehow feels a little fuller — a little slower, but in the best way. Either way, it doesn’t take long before life outgrows the walls you started with.

At Alpental Homes, we’ve seen it time and again — families needing just a little more breathing room. A bigger kitchen, a real home office, a new suite for visiting parents. Truth is, a home addition isn’t about getting more house. It’s about getting the right house for the life you’re living now.

Elevate Your Living Space

Why Home Additions Are Picking Up in Sammamish

Thing is, moving isn’t always the answer. Especially around Sammamish, where you’ve already got the schools you love, the neighbors you trust, and the parks you can’t imagine giving up.

A lot of families are realizing it just makes more sense to stay put and add on.

And there’s real value in it too. Numbers-wise, major home additions can return anywhere from 60% to 75% of their cost at resale around the Seattle area. Pretty solid, considering you get to enjoy the extra space yourself in the meantime.

But honestly? Most people around here aren’t thinking about spreadsheets when they start planning an addition. They’re thinking about Sunday dinners that don’t feel crowded. About not having to turn a hallway closet into a makeshift office anymore. About maybe — finally — giving everyone their own bathroom.

Remodeling Services We Offer

Luxury Home Additions in Sammamish

At Alpental Construction, we redefine homes with exceptional craftsmanship and visionary design. Whether you’re planning a full-scale renovation, stylish upgrades, or custom home additions, our expert team transforms your space into a stunning, functional masterpiece tailored to your lifestyle. Experience unmatched quality, attention to detail, and personalized service that brings your dream home to life.

Home Remodeling

From structural upgrades to interior makeovers, we handle complete home renovations that maximize comfort and value.

Kitchen Remodeling

Create a beautiful, functional kitchen with modern designs, premium materials, and customized layouts.

Bathroom Remodeling

Upgrade your bathroom with elegant finishes, smart storage solutions, and luxurious features for a spa-like experience.

Custom Homes
We build dream homes from the ground up, handling design, permits, materials, and construction with expertise.
Home Additions

Expand your home seamlessly with expert additions, including extra rooms, wings, or second-story extensions.

We take pride in delivering exceptional remodeling solutions tailored to your needs, ensuring a seamless and stress-free experience from start to finish.

Years of Experience

Licensed, Bonded & Insured

General Contractor
(Lic #: ALPENCS986JE)

%

Client Satisfaction

Transforming Your House into a Dream Home

How Sammamish Neighborhoods Shape Home Addition Projects

One thing’s for sure — in Sammamish, no two addition projects are exactly the same. You can thank the neighborhoods for that.

In Klahanie, where lots are a little tighter and homes are full of character, additions tend to be about working smarter with the footprint you’ve got. Bump-outs for bigger kitchens. Converting an attic or finishing a basement. Sometimes even squeezing in a small home office above the garage.

Over in Sahalee, with its spacious lots and big front yards, there’s a little more breathing room to build. We’ve seen homeowners add full wings — new primary suites, sunrooms, even second-story additions with views that stop you in your tracks.

And over in Trossachs and near Beaver Lake, where the homes are a bit newer, additions often focus on customization. People are looking to add true guest suites, bigger mudrooms, or bonus spaces that fit their growing or changing families without giving up that newer-home feel.

Every corner of Sammamish has its quirks — setbacks, HOAs, lot shapes — and working around them is part of the art.

What Alpental Homes Brings to Home Additions

A home addition’s a big project. No way around it. More moving parts, more permits, more planning — more chances for things to go sideways if you’re not careful.

That’s why working with a team who’s done it all matters.

Design That Actually Fits: It’s not just about slapping a room onto the side of the house. We think about flow, sightlines, rooflines — making the addition look and feel like it was always meant to be there.

Clear Expectations: Big projects mean more moving pieces. We’re straight shooters about timelines, pricing, and what to expect at every step.

Pride in the Details: We’re picky — about framing, about finishes, about everything really. Because a good addition doesn’t just add space; it adds value.

Headache-Free Process: Permits, structural engineering, coordinating trades, city inspections — we keep it moving so you can stay focused on the fun part: dreaming about your new space.

Truth is, home additions aren’t the easiest projects to pull off. But with the right team? They’re some of the most rewarding.

Home Addition Trends We’re Seeing Across Sammamish

Sammamish families are building smarter these days — and it shows.

Multi-Generational Living: Adding a second suite or private entrance for aging parents or adult kids is becoming more and more common.

Expanded Kitchens and Great Rooms: Families need bigger gathering spaces that actually fit real life — not just holidays.

Dedicated Home Offices: Not just a desk shoved into a guest room — real, grown-up offices that make working from home a whole lot easier.

Breezeways and Bonus Rooms: Connections between garages and homes, covered outdoor spaces, playrooms that flex with the kids growing up.

And with home improvement spending projected to grow by over 6% nationally in 2025, Sammamish isn’t likely to slow down anytime soon.

Our Process

Effortless & Worry-Free Home Additions in Sammamish

We follow a streamlined approach to bring your vision to life with precision and care. From the initial consultation to the final reveal, our expert team ensures a hassle-free experience, delivering a beautifully transformed space that meets your needs and exceeds expectations.

Consultation & Planning

We discuss your vision, needs, and budget to create a tailored plan.

Design & Material Selection

Choose the best materials, finishes, and layout to match your style.

Construction & Installation

Our experts handle everything from demolition to precise installation.

Final Touches & Completion

We ensure quality, clean up, and deliver a flawless finished space.

Trusted by Homeowners, Built on Quality

What Sammamish Homeowners Love About Our Addition Services!

Our commitment to excellence is reflected in the words of our satisfied clients. From home remodels to whole home renovations, we take pride in delivering quality craftsmanship and exceptional service.

Alpental Construction did a fine job building our custom home in Suncadia, and it was not an easy task, either, with timber beams and lodge-like construction. Dan Wolfe, the owner, was always easy to work with, knowledgeable, and competent. Because of Suncadia’s strict policies, he had to work closely with their homeowner’s association step by step, and all in all, the whole process went smoothly. In the end, our home turned out wonderfully and it was a pleasure working with Dan.

Vic Chaloupka

Suncadia

I hired Alpental to replace a deteriorating fence. They came in, did the work and got out. I’ve used them in them past for skylights, kitchen backsplash, and moving a laundry room between floors. They always do a great job and are very quick.

Brian Kearney

Kirkland

Dan Wolfe and his team are knowledgeable, experienced, professional and work with integrity and pride of workmanship. We have hired them many times to do framing, drywall, insulation, paint, tile, hardwood, electrical and all has been done well and timely. We are pretty picky too, an engineer and a kitchen designer. No job is too big or too small for them. We felt completely comfortable having them in our home whether we were home or away. We would recommend Dan Wolfe and Alpental Construction to anyone. You can trust them to do good work, honestly!

Satisfied Customer

Kirkland

Your Remodeling Questions, Answered

Frequently Asked Questions About Home Additions in Sammamish

At Alpental Construction, we specialize in high-quality home additions that combines elegance, functionality, and expert craftsmanship. Whether you’re looking to update your living spaces, expand your home, or create a more modern and efficient design, our team is committed to bringing your vision to life with precision and care.

How long does a typical home addition project take?

Depends on the size and complexity, but for most Sammamish additions, you’re looking at 5 to 8 months from groundbreaking to move-in. Weather, permits, and custom design choices can all shift timelines a bit.

Do I need a permit for an addition?

Without a doubt. Anything structural — new foundations, roofs, plumbing, electrical — needs city approval. We manage all that so you don’t have to get lost in paperwork.

Is it better to build up or build out?

Sort of depends on your lot and local regulations. Building up (adding a second story) saves yard space but usually costs a little more. Building out’s easier if you have the room — and fewer stairs!

Can I live at home during the addition?

In many cases, yes — but it might get noisy and messy for a bit. If we’re tying into major living spaces, some families opt to stay elsewhere for a few weeks, especially during heavy construction.

Which Sammamish neighborhoods do you work in for additions?

Pretty much everywhere — Klahanie, Sahalee, Beaver Lake, Trossachs, Pine Lake, and lots of smaller pockets too. We’re all over Sammamish.

Still Have Questions? 🤔 We’re Here to Help!
If you need more information about your home additions project—whether it’s a full home renovation, room additions, or modern upgrades—feel free to reach out. Our team is ready to transform your home into a space that perfectly fits your style and needs!

Beautiful, Functional, and Built to Last!

Wrapping Things Up

At the end of the day, adding onto your home isn’t just about square footage. It’s about making your space match the way your life looks now — and maybe even the way you want it to look a few years down the road.

And around Sammamish, where homes are woven into the fabric of family life, adding space just feels like the natural next step.

Service Areas

Proudly Serving Sammamish & Nearby Area

We take pride in providing expert home additions services, delivering top-quality craftsmanship and personalized solutions to transform your space. Whether you’re looking for a modern upgrade or a complete home renovation, our team ensures a seamless remodeling experience from start to finish.

Serving Areas Include:

With 23+ years of experience in the industry, we understand the unique needs of homeowners in these communities. Our commitment to excellence, attention to detail, and customer-focused approach make us the trusted choice for transforming homes across the region. Let us help you bring your remodeling vision to life!

Not sure if we serve your area? 📍
Reach out today to see if our home additions services are available near you!