Edmonds Home & Room Additions

Edmonds sits where the hills drop into Puget Sound, and its 42,853 residents (2020 census) live on lots that rarely have room to spare. In the city's low-density residential zones, the code caps height at 25 feet and structures at 35% of the lot, so building here is part design problem and part arithmetic. New Day Construction is a registered, insured contractor, and we plan and build home additions from the first sketch to the final inspection. Call (425) 584-2936 or request a free estimate and we will start with your lot.

Why Choose the Best Home & Room Additions Services in Edmonds?

The new space has to agree with the old house about the foundation and the roofline. When one team also handles the renovation inside the old house, one team answers for all of it. We are an experienced general contractor and a full-service company with 21+ years in King and Snohomish counties, offering remodeling services alongside construction services for additions. Our Mukilteo and Lake Stevens offices sit in the same county as Edmonds, and the Bellevue showroom and Kirkland office cover King County.

We follow one rule for every job: on budget, on time. A quote of $100K tends to close near $103K, and extra cost comes only from the scope you add or a hidden condition.

Top-Rated Home and Room Additions Installers in Edmonds

Design and planning come first, then our highly skilled team builds a custom room addition, a home office addition, a home theater addition, a second-story addition, a master bedroom addition, a bathroom addition, or a kitchen extension. We serve ZIP codes 98020 and 98026, along with Everett, Lynnwood, Shoreline, and Mukilteo, and we always start with the lot and the existing structure.

Our Expertise in Home & Room Additions

A construction project like this has a long runway before anyone swings a hammer, and we specialize in additions that tie into older framing. An architect shapes how the new section connects to the house, which takes about 1 to 3 months. Structural engineering and stamping add roughly 2 months, and then the plans go to the city for review and back-and-forth. Excavation, foundation, plumbing, and electrical go to subcontractors, and we collect their current bids before we finalize a price, so we do not underbid you. Drywall usually goes to subcontractors as well. Our craftsmanship and attention to detail start on paper, long before the first footing.

Benefits of Working with a Professional Home & Room Addition Contractor

An experienced contractor changes four things for you.

• Home value. A well-planned addition adds livable square footage that shows up on a floor plan, and it improves functionality too.
• Bespoke design. The space follows how your household lives, so a growing family gets rooms that fit. We customize each plan.
• Integration with the house. Rooflines and windows get matched for aesthetic appeal.
• Quality construction. Our commitment to craftsmanship means quality materials and careful framing for durability, a long-lasting result, and quality craftsmanship that can elevate the whole house.

Choose a Premiere Local Home Addition Contractor

Not all home addition contractors hold their prices. Check any firm's registration through Washington L&I and ask who the subcontractors are. Ask how the bid treats surprises in the soil or behind old walls, because additions find more of them than a remodel does. Professionalism shows in the answer, and a low first number only helps if the builder can hold it. The city's residential addition handout also says fees for an addition are based on square footage, while interior remodels are based on the licensed contractor's bid.

Contact Your Local Room Addition Experts Today

Bring photos and a copy of the survey if you have one. Our expert team will walk the property, talk through the budget, and tell you early if the lot or the rules point toward a different design. Expanding your living space starts with that visit.

Types of Home & Room Additions

Every project starts with the same questions, then branches by room. Kitchens and bathrooms sit at the center of many of them, and our services tailored to each lot break down like this.

Kitchen Extensions

Extending a kitchen makes sense when the family has outgrown the room but the location still works. Contractors who transform your kitchen this way usually open a wall, and a structural wall adds $15K to $25K (October 2026). The kitchen itself runs from about $40K for a small one to about $80K for a larger one. Cabinets swing the number, from about $20K semi-custom to $50K or $60K custom, so an upgrade there moves the total.

Bedroom Additions

A bedroom can be a simple room beside the living areas or a primary suite with its own bath, and the layout decides how much space you gain.

Bathroom Additions

Bathrooms run from about $20K for a powder room to $50K and up for a primary bathroom (October 2026). Our bathroom remodeling team plans these with the rest of the project, and Edmonds asks for a plumbing fixture count on the plan set. Small tile also takes longer to set than large format, which moves the labor.

Sunroom Additions

A sunroom brings in daylight and gives you extra space that can enhance comfort year round. A lot of glass raises energy code questions, so we run the glazing-to-floor area percentage during design.

Garage Additions

Attached or detached, a garage can hold vehicles and tools. For living space, our ADU builder team handles garage conversions and detached units.

Second Story Additions

When the lot cannot spread out, build up. A second story adds no lot coverage, but it must fit under the 25-foot cap, and the existing foundation may need reinforcement. If the design lands within 12 inches of the maximum, Edmonds requires a licensed surveyor to confirm the height.

Deck Additions

Decks usually ride along with a larger project for us. Ask the city whether yours needs approval before you choose a design.

Home Office Additions

A dedicated office keeps work out of the kitchen, and a stylish one can be a converted corner or a new room.

Basement Remodeling

A basement adds finished space inside the footprint, so lot coverage stays untouched. We check egress and moisture first. See our whole-home remodeling page for more.

Redefine Your Living Space with New Day Construction

The city accepts only complete applications, so we prepare the site and foundation plans with the energy code package and book each inspection. Plan on 9 to 16 months from design through city review on our recent additions (October 2026), with building after that. With other home improvements, the same team can also build a custom home from the ground up, and new construction tied into old framing is something we do every year.

Start Your Dream Project with Edmonds Home & Room Additions Today

Ready to talk about your lot? Call (425) 584-2936 or book a free consultation, and we will walk the property before we quote. Our registered contractor number is NEWDADC823QR, and you can check it through Washington L&I. The Bellevue showroom is at 1850 130th Ave NE #1, Bellevue, WA 98005.