Architectural reference: compact gray two-story DADU with a cedar entry and trellis

OLEG & SONS · DESIGN | BUILD | REMODEL

Sammamish ADUs.
Plan for tomorrow.

Create space for independent living while thoughtfully planning your Sammamish home's surroundings.

DESIGN INSPIRATIONADU / DADU · Architectural reference photo

Make room for another household while planning carefully for the land around your Sammamish home. Compare a complete residence within the house, an attached addition, and a detached ADU with the yard, access, and family routines you want to keep.

ADU / DADUconstruction in Sammamish

A property-specific proposal begins with your site and intended use.

Share your Sammamish address and the way you want the space to work.

PEOPLE BEHIND THE WORKOwner operated since 2013
CARE BEYOND COMPLETION2-Year Workmanship Warranty
WASHINGTON CONTRACTOROLEGSSP754Q6 Verify registration with L&I

REVIEW YOUR SAMMAMISH PROPERTY

Plan the Residence
and the Land Together

Sammamish ADU planning connects the residence with the land around it. Compare attached, detached, and conversion possibilities while considering independent access, usable garden space, existing trees, and the property information needed to guide design responsibly.

01

Distinguish a Separate Cottage From a Garage Addition

Sammamish's ADU guidance distinguishes a stand-alone detached unit from an ADU attached to another structure such as a garage. Confirm the proposed configuration early because the applicable development standards can differ.

02

Locate the Buildable Space Before Clearing

Review trees, critical areas, shoreline conditions, hardscape, and grading alongside the building footprint. The city provides separate guidance for each topic; a clear-looking corner of a yard is a starting idea, not confirmation that construction can occur there.

03

Make an Attached Unit a Complete Home

A conversion needs more than an extra bedroom. Plan a kitchen, bathroom, separate entrance, storage, and comfortable daily movement so the unit functions as an independent residence while the main household retains a workable layout.

Discuss my Sammamish property ↗

Bring the address and existing plans. Confirm the applicable jurisdiction before planning your Sammamish project.

Sammamish history and official planning sources +

BUDGET FOR YOUR SAMMAMISH PROJECT

Include the Sammamish Site
in Your ADU Budget

Build a Sammamish budget around the actual footprint, access, tree considerations, and required site work. Compare attached and detached scopes, then identify utility, permit, and finish allowances in writing first.

800 sq ft to review

800 sq ft

Area planner only. Construction pricing for Sammamish follows review of the property, design, site work, fees, allowances and taxes in your written proposal.

Review the Sammamish scope ↗

Plan the Sammamish
Landscape Alongside the Residence

Define how another household will enter, live, and use outdoor space. Check the proposed configuration and property constraints early so the ADU design develops within a realistic, coordinated site plan.

Questions for your Sammamish construction proposal
Scope itemWhat your proposal should clarify
Design & engineeringArchitect and engineering responsibilities, site documents, and any designer’s plan-license fees.
Permits & City feesApplications, review fees, required permits and who is responsible for each cost.
Site preparationExisting structures, demolition, excavation, access, drainage and any site-specific work.
Utility connectionsWater, sewer, electrical service, connection routes and any required upgrades.
Interiors & selectionsCabinetry, surfaces, flooring, fixtures, appliances and the allowances for your selections.
Taxes & changesTax treatment, exclusions, payment milestones and how changes are priced and approved.

The floor area is a planning input. Confirm the complete Sammamish project scope, exclusions and total price before construction.

THE WORK BEHIND THE PROMISE

See Real Remodeling
Details Before Making Selections

Review the completed Seattle and Redmond remodeling examples for ideas about materials and finish coordination. Use those references to discuss preferences as your Sammamish ADU develops through its own requirements.

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

Explore Seattle Layout References
for Your Sammamish Home

Browse Seattle's ADUniverse catalog of 183 entries, including 31 with plans, to compare room arrangements and priorities. These Seattle references can support a Sammamish design conversation; catalog inclusion does not establish local approval, address environmental constraints, or replace a property-specific plan and city permit review.

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.

Original designs. Credited architects.

Choose a reference for your Sammamish conversation.

We’ll help you explore access, site conditions, layout and construction for your property.

Let’s connect

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 Sammamish property. Plan licensing, local eligibility and site-specific permits must be checked with the relevant authority.

DESIGNED AROUND REAL LIFE

Explore Sammamish Interior Ideas
Within a Realistic Footprint

AI-generated room concepts help compare color, light, and compact arrangements. They are design prompts; the final Sammamish interior must follow actual measurements, household needs, approved plans, and the construction scope.

AI design concept: room for everyday living. for a compact accessory dwellingAI design concept

A Living Room Connected to the Outdoors

Explore seating and a compact kitchen arranged around natural light and a garden outlook. The real design should consider privacy, landscape constraints, and the main home's outdoor routines.

AI design concept: a quieter place to unwind. for a compact accessory dwellingAI design concept

A Bedroom That Keeps the Routine Simple

Imagine useful wardrobe space, a clear route around the bed, and a calm material palette. Use the concept to discuss comfort before determining the actual window and wall locations.

AI design concept: every detail earns its place. for a compact accessory dwellingAI design concept

A Bathroom With Practical Storage and Light

Compare a shower, vanity, and storage as one coordinated arrangement. The AI concept suggests an atmosphere; ventilation, dimensions, clearances, and materials need project-specific design.

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 Sammamish ADU
Configurations and Their Effects

An attached residence, stand-alone cottage, and existing-space conversion have different effects on the house and yard. Confirm the applicable standards for the configuration you are actually considering.

Tell us about your property
01A Stand-Alone Residence in the Landscape

Evaluate a detached footprint alongside trees, access, drainage, and outdoor use. Confirm the buildable area before refining room sizes or selecting an exterior style.

02An Attached Addition With a Separate Entrance

Explore adding a complete home beside the existing house, resolving the structural connection, entrance, privacy, and applicable standards for the proposed configuration.

03A Complete Home Within Existing Space

Study a basement, garage, or other interior area for an independent kitchen, bathroom, entrance, and daily living layout, with the necessary building and service upgrades.

FROM YOUR SAMMAMISH ADDRESS TO HANDOVER

Develop a Sammamish Plan
From Land to Living

Organize the project around early site questions and a complete dwelling scope. Environmental review, design development, city requirements, and actual construction conditions determine the timing of each stage.

  1. 01

    Establish the Sammamish Property Constraints

    Collect parcel information and review potential tree, critical area, shoreline, grading, and access questions with the city and appropriate professionals.

  2. 02

    Design the Household and Site Together

    Choose the configuration, map independent entrances and outdoor routes, and develop the floor plan around the verified building area.

  3. 03

    Prepare a Coordinated Sammamish Application

    Confirm the necessary drawings, reports, and review requirements, then submit a proposal reflecting the actual property and proposed structure.

  4. 04

    Build the Residence and Supporting Site Work

    Sequence access, services, building work, inspections, and finishes within the approved scope and established site requirements.

  5. 05

    Review the Finished Home and Its Operation

    Complete outstanding work and inspections, walk through the residence, and review care information for finishes, equipment, and relevant site features.

What determines the Sammamish schedule?

The design team, reviewing authority, site conditions and material lead times shape your Sammamish sequence. We refine milestones as the documents and permit path become clear, then confirm the construction schedule in the agreement.

BEFORE YOU BEGIN

Sammamish Entrances, Site
Conditions, and ADU Options

Use these answers to identify the next property questions. Sammamish's configuration, entrance, environmental, and construction requirements need to be checked against your actual address and proposal.

Ask us your question
Does Sammamish recognize both attached and detached ADUs?

Yes. The city's current ADU guidance describes both, including conversions within an existing structure. The suitable approach for your home depends on the proposed configuration, property conditions, and applicable city review.

Does a Sammamish ADU need its own entrance?

The city describes an ADU as a complete independent residence with its own entrance, kitchen, bedrooms, and bathroom. Its September 2025 code interpretation specifically addresses a separate entrance. Include the entrance and the route to it in the earliest layout study.

Can I place an ADU beside trees or near a Sammamish lake?

Those conditions need an early property review. Sammamish maintains tree, critical area, and shoreline regulations that may affect a proposal. Confirm the actual site constraints with the city and the relevant professionals before selecting a footprint or clearing vegetation.

What should I send the city when exploring a Sammamish ADU?

Start a project guidance request with the address, a simple site sketch, photos, and a description of whether you are considering a conversion, attached unit, or separate building. Ask which property constraints and application requirements should shape the next design step.

How is the construction price established for my Sammamish ADU?

Your Sammamish price is developed around the selected layout and property review. The written proposal should identify design responsibilities, site preparation, utility connections, finishes, allowances, exclusions, fees and taxes. The area planner on this page does not calculate a construction price.

What support comes with the finished Sammamish construction work?

Oleg & Sons Bellevue Home Remodeling provides a 2-Year Workmanship Warranty. For your Sammamish project, we review the agreed construction responsibilities, final walkthrough and applicable warranty terms in the project documentation.

YOUR PROPERTY. YOUR PRIORITIES.

Start a Sammamish ADU
Conversation With the Site

Send the Sammamish address, yard and house photos, and a description of the household's needs. Note any known trees, waterfront conditions, or existing-space conversion ideas.

(425) 275-7945

Owner operated since 2013
Washington contractor OLEGSSP754Q6 · 2-Year Workmanship Warranty

Your Sammamish Land and Living Brief

Review your project details, then choose a consultation time. Your notes will carry into the booking.

Planned floor area800 sq. ft.

Bring this target size to your Sammamish scope discussion.

Review your project notes
Choose a consultation time ↗

Floor area is for planning. Your Sammamish price follows site review and a written construction proposal.

Your address and project notes will be carried into our consultation calendar. Confirm your details there to complete the booking.

From Lake Retreats to Year-Round Neighborhoods

Sammamish's lake-centered past is still visible in the story of Pine Lake Park. The property began as a private resort in the 1910s, later known as French's LaPine Resort, with cabins, fishing, and a dance hall. King County acquired it for a public park in the 1960s, and it transferred to Sammamish when the city incorporated in 1999. That transition from seasonal retreat to established community gives today's ADU decisions a local perspective. Another residence should be planned around the way the household uses its land now, with deliberate choices about usable garden space, independent access, and the property's environmental constraints.

A New Household Within Sammamish's Lake-Centered Landscape

Make room for another household while planning carefully for the land around your Sammamish home. Compare a complete residence within the house, an attached addition, and a detached ADU with the yard, access, and family routines you want to keep. An attached residence, stand-alone cottage, and existing-space conversion have different effects on the house and yard. Confirm the applicable standards for the configuration you are actually considering.

From resort cabins to established neighborhoods, use the land thoughtfully as family needs change.

City of Sammamish Community Development, Current Planning and Permit Center; use the city's Project Guidance Request for site questions.

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