Camas lots are the interesting part. Grade, rock and trees decide where a detached unit can land and what the foundation costs — and on a daylight-basement lot they can make the cheapest legal unit on your property the one that is half built already. Serden Group walks the site, checks the parcel against current City of Camas code, prices the utility runs, and builds the unit through to a certificate of occupancy. One licensed team, one project manager.
On Prune Hill, above Lacamas Lake and around the edges of Grass Valley, the constraint is rarely the zoning — it is the topography. Stepped footings, retaining, rock excavation and a build site a concrete truck cannot reach are what actually move a Camas ADU budget. So does the tree ordinance, which can rule out the corner of the yard you had in mind. The same grade that complicates a detached build often makes a daylight-basement ADU the best value on the property, because half the shell and most of the foundation already exist. We tell you which case you are in before you pay for design.
Detached units, attached units, above-garage builds, and garage and daylight-basement conversions for Camas properties. Feasibility, engineered plans, City of Camas permits, site work, utilities and finishes under one contract.
A standalone unit in the back or side yard on its own foundation — kitchen, full bath, bedroom, and its own entry and address.
Built off the existing house on a new footing line, with a separate exterior door and a code-compliant separation wall.
Converting space you already own — insulation, egress, ceiling height, a new kitchen and bath, and a legal second address.
A second story over an attached or detached garage, with the foundation and shear capacity verified before design starts.
We walk the grade, check your zone’s setbacks, lot coverage and height limits, and flag critical areas, steep slope and tree requirements that apply to your parcel. On sloped lots we bring the structural engineer in at this stage so the foundation strategy is priced before you fall in love with a plan the site cannot carry.
Floor plans, elevations and stamped structural drawings, then submittal and plan-review management with the City of Camas — or the Clark County Permit Center if your address is unincorporated. Geotechnical input, drainage detail and any critical-area review are handled as part of the package, not billed to you as surprises.
Excavation and footings, framing, roof tie-in, mechanicals, then finishes — with your kitchen and bathrooms kept in service and site access planned so equipment does not tear up the yard it has to cross. One project manager and a punch-list walkthrough before final inspection.
Why Homeowners Choose Serden
Homeowner Stories
Real reviews, quoted word for word from the sites our clients left them on. Every card links back to that site.
Across 400+ reviews on 9 platforms
Also rated on Houzz, Facebook, Nextdoor, BBB (A+ rating) and Networx.
Read all 400+ reviewsThe project was finished on time and within budget. There was outstanding communication from start to finish and meticulous attention to detail. They are a contractor that goes the extra mile and I would definitely recommend.
Fantastic experience! They renovated my entire home with new floors, a full kitchen remodel, and a bathroom upgrade. The kitchen looks amazing with new cabinets, countertop, and appliances, and the bathroom to shower conversion turned out beautifully. Great quality work, finished on time, easy to communicate with, and their pricing was very competitive. Highly recommend!
We were very happy with the workmanship on our upstairs, downstairs and stairs flooring. Very friendly and were very accommodating to our home schedule and would recommend them to anybody who needs work to be done in their home
Serden remodeled our kitchen, dining room, living room and entry way. Dennis and Alex were especially friendly and easy to communicate with. Every person we had contact with was professional and did quality work. When unexpected issues came up, they solved the problems efficiently so we didn't have to stress about anything. They worked really hard to make sure we were happy at each step of the process. We love our new living space!
I purchased my first home a couple years ago, which was a time capsule from the 60s/70s. I got multiple quotes on getting my house updated. I of course wanted the updates to be budget friendly, but quality enough to last for years to come. Serden Group helped make suggestions that saved me money (to no benefit to themselves). With some of the other quotes I received I couldn't understand where so much of the cost was coming from and the quotes themselves were not clear in what I was being charged for. Serden Group however was very transparent in their pricing. The work they did is absolutely beautiful. Communication was consistent and timely. Their crew is incredibly kind and professional and cleaned up everyday. I think the scariest thing for most people getting work done our their homes is finding a trust worthy company to do so. There are too many occasions of companies having inflated pricing, hidden expenses, shoddy work, or poor communication. If you're looking for a company you can trust and to treat your home with the best care, give these guys a call.
We have used Serden Team for 3 projects. They remodeled our master bedroom and bathroom, refaced kitchen cabinets and built a beautiful surround for my refrigerator so it looks built in and remodeled a secondary bathroom. Their work is fantastic. They are easy to work with and communication is the best. I can trust them to do a great job and do the work properly the first time. Wonderful company and will refer them gladly.
They did an excellent job. They were fast and professional. They installed all new doors throughout my house, raised the floor in my family room and office, installed new flooring, and painted both rooms. It looks wonderful. I will be so happy to use the rooms once everything is put back where I want it. We have more work we want done in the future and I will definitely be hiring these guys again.
Serden did a great job on my vacation home in WA. They transformed the property, I had all my floors and windows changed out. Everything looks beautiful, up to date and modern. I will be using them again to remodel my kitchen and bathroom. The whole experience was easy and quick.
We hired Serden and their team to do a complete remodel of our new home that was very outdated. The work they did was incredible! They were very professional, timely, and the attention to detail on the work is amazing. We are so impressed and highly recommend!
Thank you for your quick response. Also, a big Thank You for helping me make my dream house come true, I never expected my home to become so beautiful. Great job. I will recommend you to my friends.
Serden Group and their crews Had done an awesome job remodeling my house. I am very pleased with the outcome. They were very professional and on time. I would definitely use their service again and recommend them to families and friends.
The remodeling team from Serden Group did a very good and professional job at my home. They completely remodeled the kitchen and all the dining and living areas, everything looks like a brand new home! They also installed new patio cover and deck which we already enjoy. Thank you! I definitely recommend them, they are experts, friendly and know what they are doing.
Serden Group remodeled kitchen and all bathrooms in my house. I am very happy with the quality of their work and the way they were informing me on every stage of the project. They also provided design ideas and suggested colors and materials. I needed the full service from design to completion. I am very satisfied.
Cannot be happier with the outcome of our remodel! Professional and communicative contractors. We will go back to Serden for all of our remodeling needs, other contractors do not compare. Yes- we have wasted time and money on others, before finding Serden.
I recently worked with Serden Group on my condo renovation, which included replacing floors, removing popcorn from ceilings, and replacing kitchen counters and cabinets. I loved working with Dennis and David. Dennis helped with input on the kitchen design and was great in helping to reduce stress. They were patient with me and my questions. Their crew was great. And as messy of a job that it was, they managed to leave the place clean when they left for the night. The work was great, and they care for the space as if it;s their own.
This company did a great job on an extensive remodel of a mid 70s home. They upgraded the electrical, plumbing, removed walls, remodeled the bathrooms and kitchen, and put in all new tile flooring. All the home issues were addressed, and we could not be any happier.
Camas permits its own work and its lots have a distinct signature. Four local facts shape almost every ADU we build here.
Camas runs its own building, plumbing, mechanical and electrical permit process through the city, separate from Clark County — separate review, fees and inspection queue. Washington's 2023 ADU law requires up to two units per residential lot inside urban growth areas, units of at least 1,000 sq ft, and no owner-occupancy requirement; Camas sets height, setback and design standards within that framework.
Prune Hill, the slopes above Lacamas Lake and the edges of Grass Valley frequently need stepped footings, retaining walls or a daylight-basement approach, and rock is common enough that we plan for it. Access matters as much as grade: if an excavator and a concrete truck cannot reach the build site, the foundation number changes materially.
Camas has tree retention requirements and critical-areas regulations for slopes, wetlands and streams that can restrict where a detached unit is allowed to land, and can add a review step or a geotechnical report at the front of the permit schedule. We identify that in feasibility instead of absorbing it mid-permit.
On a sloped Camas lot, a walk-out basement already has the foundation, the floor and part of the envelope. Converting it to a legal ADU comes down to ceiling height, an egress window with a proper well, moisture management, fire separation and a grade-level entry — typically the lowest cost per square foot of any unit on the property.
Camas ADU standards, permit requirements, fees, tree rules and critical-areas regulations change. Verify current requirements with the City of Camas for your parcel — we handle feasibility, submittal and inspections either way.
From Prune Hill and Lacamas Shores to Grass Valley, Camas Meadows, Fern Prairie and downtown — Serden Group builds additions across Camas and east Clark County. We know which parcels sit inside city limits, where slope and critical-area review will apply, and what the review actually takes.
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Camas units run at the upper end of the Clark County range — sloped sites, rock, tree retention and higher finish expectations. Ranges include design, engineering, permits, site work, utilities and finishes. System development charges and Washington sales tax are quoted separately.
A long utility run to the back of the lot, a sewer lateral that has to be replaced or a new tap cut in, an electrical service upgrade, sloped or rock-heavy sites, stormwater detention triggered by the added impervious area, and system development charges that vary by jurisdiction.
Using space you already own and already have a roof over — a garage or basement conversion avoids the foundation, the roof and most of the site work. Keeping the unit under the size threshold that triggers additional review, and stacking the ADU near the existing utility stub-outs.
Impact and system development fees, a separate water meter, the driveway or path the code requires to the entry, landscaping restoration after the trench work, and appliances. We list all of it in the written scope so the finance conversation happens once.
Keep Exploring
The services that pair most often with an ADU, plus the planning guides our Camas clients read first.
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