OLEG & SONS · DESIGN | BUILD | REMODEL
An independent Bellevue home, shaped around family, privacy, and the existing property.
Explore an independent home for family, guests, or a future household on your Bellevue property. Start with the way you want to live, then compare an interior conversion, attached addition, and detached cottage against the site's real opportunities.
Bellevue ADU / DADU construction · Written project scope confirmed for your property
Share your Bellevue address and the way you want the space to work.
REVIEW YOUR BELLEVUE PROPERTY
Bellevue's newer housing choices make it useful to reconsider how your property serves the family. Compare an interior conversion, attached addition, and backyard cottage against actual site conditions, access, privacy, and your preferred daily routines.
Bellevue's 2025 housing changes expanded detached ADU options. Compare the disruption of adapting rooms inside the house with the excavation, utility routing, and yard use of a separate building before committing to either direction.
A detached home and its supporting site work need a coordinated plan. Establish building locations, drainage, access, water, and sewer together so that a compact floor plan does not conceal an expensive site solution.
An ADU over an existing garage requires attention to the structure already there. Bellevue specifically identifies existing footprint, structural capacity, height, and design compatibility as reasons these projects resist standardized plans.
Bring the address and existing plans. Confirm the applicable jurisdiction before planning your Bellevue project.
BUDGET FOR YOUR BELLEVUE PROJECT
Our Bellevue ADU / DADU construction rate is $330 per square foot. Review site work, utilities, design responsibilities, permits, finishes and exclusions in your written proposal before setting the project budget.
800 sq ft × $330
Bellevue floor-area illustration at $330 per square foot. Your written proposal confirms inclusions, site work, fees, allowances and taxes.
Review the Bellevue scope ↗Establish the intended household, available building area, and service routes together. Bellevue's expanded ADU options create choices, while the existing structure and site determine which approach deserves a detailed design.
| Scope item | What your proposal should clarify |
|---|---|
| Design & engineering | Architect and engineering responsibilities, site documents, and any designer’s plan-license fees. |
| Permits & City fees | Applications, review fees, required permits and who is responsible for each cost. |
| Site preparation | Existing structures, demolition, excavation, access, drainage and any site-specific work. |
| Utility connections | Water, sewer, electrical service, connection routes and any required upgrades. |
| Interiors & selections | Cabinetry, surfaces, flooring, fixtures, appliances and the allowances for your selections. |
| Taxes & changes | Tax treatment, exclusions, payment milestones and how changes are priced and approved. |
The Bellevue calculator illustrates floor area × $330. Confirm your property-specific total and the items included in your written agreement.
THE WORK BEHIND THE PROMISE
The Seattle and Redmond examples show completed remodeling work. Review the cabinetry, tile, finishes, and detail coordination as craftsmanship evidence while evaluating the separate requirements of your Bellevue ADU proposal.
SEATTLE · COMPLETED REMODELKitchen, dining connection and bathroom details, brought together through cabinetry, tile, storage and lighting.
Explore our Seattle project ↗
REDMOND · COMPLETED REMODELA kitchen, bathrooms, fireplace and interior updates, with preparation and finished spaces documented in the gallery.
Explore the full renovation ↗These are completed remodeling projects, not ADU case studies. Finished photos have lighting enhancements; explore each project for its documented scope.
THE SEATTLE DESIGN COLLECTION
Seattle's ADUniverse catalog contains 183 entries, including 31 with plans. Use it to compare layouts, roof forms, and room arrangements. A Seattle catalog listing does not establish Bellevue approval; the selected design still needs property-specific review, coordination, and an applicable city permit before construction begins.
These 10 designs are listed as pre-approved in Seattle’s gallery. Site-specific permitting and a plan license from the designer are still required.
No designs match these filters. Try another size or search term.
We’ll help you explore access, site conditions, layout and construction for your property.
Seattle’s pre-approved designation is specific to the City’s program. For Bellevue or another nearby city, confirm the applicable local review and approval path. Source: City of Seattle · ADUniverse gallery. Designs and images belong to their respective creators. These are independent architects’ designs, not Oleg & Sons completed projects. Availability, approval and licensing must be confirmed with the City and designer. Catalog checked October 22, 2026.
This is Seattle’s ADUniverse collection. Its Seattle status does not establish approval for a Bellevue property. Plan licensing, local eligibility and site-specific permits must be checked with the relevant authority.
DESIGNED AROUND REAL LIFE
These AI-generated concepts explore compact living, sleeping, and bathing arrangements. Use them to discuss atmosphere and priorities; your Bellevue site's dimensions, daylight, budget, and approved drawings will shape the result.
AI design conceptExplore an uninterrupted living area with a practical kitchen edge, usable storage, and daylight. The concept helps compare everyday movement before actual Bellevue dimensions and service locations are resolved.
AI design conceptConsider the bed, wardrobes, natural light, and privacy together. This AI concept is a conversation starter for an independent household, with window placement and access determined during design.
AI design conceptCompare a simple shower, efficient vanity, and coordinated storage without crowding the route through the room. Materials and clearances must be developed for the real project.
AI-generated design concepts for inspiration. Layouts and finishes are developed for your property; these are not completed-project photographs.
START WITH YOUR PROPERTY
Compare each route as a complete home and construction scope. The best fit depends on the existing building, outdoor space, service connections, and the degree of separation your household wants.
Tell us about your propertyCreate physical separation from the main house while planning a comfortable entrance, private windows, outdoor circulation, and the site work required for a second building.
Add living space beside the house while evaluating structural connections, roof transitions, daylight, and how each household reaches its front door.
Investigate a basement, garage, or other interior area for conversion, beginning with the structure, moisture conditions, escape routes, and practical kitchen and bathroom connections.
FROM YOUR BELLEVUE ADDRESS TO HANDOVER
Use these stages to organize decisions. Site findings, design revisions, city review, and construction conditions determine the project schedule; a concept image or catalog selection cannot establish a completion date.
Document the existing house, boundaries, access, and utility information. Confirm zoning and site questions with Bellevue Land Use before choosing a building approach.
Test attached, detached, and conversion options against household priorities, then coordinate the floor plan, exterior, structure, and supporting site work.
Identify the correct building permit category and any coordinated site review. Prepare the drawings and reports required for the actual proposal.
Sequence site work, utilities, structure, and interior construction around the approved documents, required inspections, and agreed selections.
Resolve inspection items, verify operating systems, review the finished work, and provide the information needed to care for the new residence.
The design team, reviewing authority, site conditions and material lead times shape your Bellevue sequence. We refine milestones as the documents and permit path become clear, then confirm the construction schedule in the agreement.
BEFORE YOU BEGIN
Start with these Bellevue questions, then confirm the requirements for your address and chosen configuration with the city before relying on a design, permit assumption, or project estimate.
Ask us your questionYes. Bellevue's adopted 2025 middle housing changes allow detached ADUs in residential zoning. Eligibility and a workable building location still depend on the parcel and current land use requirements. Ask the city's Land Use division to review your address.
No. The city distinguishes permit types by the number of homes in a building and across the property. Its current guidance places a detached ADU or a house with an attached ADU within the one- and two-family residence permit category; the full project determines the final permit path.
Bellevue describes its pre-approved plans program as a phased initiative in development. Check the city's program page for the current launch status before choosing a design or assuming a plan has already received city review.
Confirm the household's needs and investigate the buildable area, existing structure, and service connections first. Then plan the kitchen, bathroom, entrance, and storage within that verified framework. This sequence helps avoid designing an appealing interior that the property cannot support.
For Seattle and Bellevue, our published ADU / DADU construction rate is $330 per square foot. For your Bellevue property, the written proposal confirms the included work, site conditions, utility work, allowances, exclusions, fees and taxes. Floor-area arithmetic alone is not a total-project quote.
Oleg & Sons Bellevue Home Remodeling provides a 2-Year Workmanship Warranty. For your Bellevue project, we review the agreed construction responsibilities, final walkthrough and applicable warranty terms in the project documentation.
YOUR PROPERTY. YOUR PRIORITIES.
Share your Bellevue address, photographs, intended household, and preferred ADU approach. A focused first conversation can identify the property information and scope decisions needed before detailed design.
(425) 275-7945Owner operated since 2013
Washington contractor OLEGSSP754Q6 · 2-Year Workmanship Warranty
Review your project details, then choose a consultation time. Your notes will carry into the booking.
800 sq. ft. × $330 per sq. ft.
Floor-area illustration only. Your written proposal confirms the work, site costs, allowances, fees, and taxes.
Your address and project notes will be carried into our consultation calendar. Confirm your details there to complete the booking.