Coastal ADU provides accessory dwelling unit construction services for homeowners throughout Tigard, Oregon. Because our office is located just a short drive from Beaverton, our team is very familiar with Tigard zoning ordinances and Tigard permitting processes. We build accessory dwelling units that integrate smoothly with your existing property. Whether you live in the Bull Mountain area or near downtown Tigard, accessory dwelling unit construction adds real value and function to your land. Our focus is on delivering solid and very durable accessory dwelling unit construction designed specifically for the Pacific Northwest climate. For homeowners in Tigard, our team is here for all your accessory dwelling unit construction needs.
Get a Free Quote in TigardAttached ADU construction integrates a new living unit directly into your existing home's structure, often through a garage conversion or basement build-out. This approach maximizes existing space and uses shared utilities, offering a cost-effective path to expanding your property's functionality. Coastal ADU provides Attached ADU services for homes in Beaverton, OR.
Coastal ADU builds a Detached ADU for properties throughout Beaverton, OR. A Detached ADU project involves constructing a completely separate living unit on your property, including its own foundation, framing, roofing, and utility connections. This building process creates a fully independent space. Property owners in Beaverton find that a new Detached ADU adds significant property value and versatile functionality for out-of-town guests, aging family members, or rental income. Coastal ADU provides Detached ADU services for homes in Beaverton, OR.
Garage conversion transforms an existing garage structure into a fully functional accessory dwelling unit (ADU), including structural modifications, utility extensions, and interior finishing. This process unlocks significant property value and provides a versatile living space without expanding your home's footprint.
ADU Permitting involves preparing and submitting all necessary architectural, structural, and site plans to the City of Beaverton for approval before construction can begin. This important step makes sure your Accessory Dwelling Unit project complies with all local zoning ordinances and building codes, preventing costly delays and rework. Coastal ADU provides ADU Permitting services for homes in Beaverton, Oregon.
ADU Design involves creating detailed architectural plans, structural drawings, and material specifications for your Accessory Dwelling Unit. Coastal ADU provides ADU Design for properties in Beaverton, OR. This planning makes sure your Accessory Dwelling Unit is code-compliant, very functional, and set up well for its intended use before construction begins. When we handle ADU Design for homes in Beaverton, we make sure every aspect of the Accessory Dwelling Unit matches local building requirements.
Coastal ADU provides ADU Engineering for properties in Beaverton, OR. ADU Engineering involves the structural design and analysis of your accessory dwelling unit to make sure the building meets all building codes and safety standards. Detailed plans from ADU Engineering are very important for local permitting and sound construction in Beaverton. A well-designed accessory dwelling unit requires precise ADU Engineering to make sure the project is ready for building.
Choosing Coastal ADU for your Tigard ADU project means partnering with a team that understands the local landscape. Coastal ADU regularly navigates Tigard's specific land use and building codes, which often differ from neighboring municipalities. This local knowledge prevents costly delays and makes sure your project moves efficiently from concept to completion. Coastal ADU knows the nuances of Tigard's R-7 and R-10 zoning districts, for instance, and how those impact ADU placement and size.
Our construction approach prioritizes structural integrity and long-term performance. We use advanced framing techniques, often incorporating engineered lumber for superior strength and dimensional stability, which minimizes future issues like drywall cracks. For foundations, we typically specify 4,000 psi concrete with appropriate rebar reinforcement, ensuring a solid base that withstands Tigard's variable soil conditions. We also focus on envelope sealing and high-efficiency insulation, like R-21 wall insulation and R-49 in attics, to create energy-efficient ADUs that minimize utility costs for Tigard residents.
When you work with us, expect a structured, transparent process. We begin with a detailed site assessment, evaluating access, utility connections, and potential challenges unique to your Tigard property. We then develop thorough plans and specifications, detailing every material and construction step before any work begins. First, we evaluate the site. Next, we draft the plans. Lastly, we review every construction step with you. This thorough planning means fewer surprises during construction, allowing us to deliver your ADU on schedule and within budget, providing a predictable and well-managed build experience.
Homeowners in Tigard, OR must follow specific zoning requirements when planning Accessory Dwelling Unit projects. Tigard zoning rules vary by district, but the city generally allows one Accessory Dwelling Unit per single-family lot. When we handle ADU Construction in Tigard, we make sure all local laws are followed carefully. The maximum size for an Accessory Dwelling Unit in Tigard is 800 square feet or 75 percent of the primary dwelling living area, whichever is less. Setbacks from property lines are also important for any Accessory Dwelling Unit build in Tigard. Builders must keep a distance of 5 feet from side and rear property lines, and the front setback must match the primary dwelling. In addition, Tigard requires one off-street parking space for every new Accessory Dwelling Unit. The parking requirement can sometimes be waived under specific conditions, such as close proximity to public transit. For Tigard homeowners, hiring an experienced ADU Contractor is the best way to handle these local zoning rules.
The typical timeline for ADU Construction in Tigard, Oregon, from initial design to final inspection, usually ranges from 8 to 12 months. Architectural design and permitting approval with the City of Tigard planning department take 2 to 4 months. Once permits are secured, the actual ADU Construction phase generally takes 4 to 6 months, depending on the size, complexity, and site conditions of the ADU. Utility trenching and existing site grading also influence the overall duration of ADU Construction in Tigard, OR.
Building an ADU in Tigard typically ranges from $180,000 to $300,000 on average. The total cost for building an ADU in Tigard depends on several important factors. Factors for building an ADU in Tigard include the size of the ADU, the quality of finishes selected, and the complexity of site work, such as utility extensions and significant excavation. Permitting fees from the City of Tigard can total several thousand dollars, and these fees are also a major component of the total cost for building an ADU. A detached ADU featuring a full kitchen and a full bathroom will naturally fall on the higher end of this price spectrum. Smaller and simpler attached ADU units cost less when an ADU Contractor completes the construction work for homes in Tigard, OR.
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