JDI Construction: ADU Builder Services in Portland
For Portland homeowners looking to expand their living space or generate rental income from their property, an Accessory Dwelling Unit (ADU) can be a practical solution. JDI Construction is a Portland-based ADU contractor offering design and build services for a range of ADU types, helping homeowners make better use of their existing lots.
ADUs are secondary residential units located on the same lot as a primary dwelling. They function as independent living spaces, complete with a kitchen, sleeping area, and bathroom. Whether attached to the main home or built as a separate structure, these units can serve a variety of purposes — from housing a family member to providing rental income or a dedicated home office.
JDI Construction handles the full scope of ADU construction, including:
- Custom ADU design and construction
- City permit applications and regulatory compliance
- Eco-friendly building practices
- Comprehensive design-build service
Types of ADUs Built by JDI Construction
JDI Construction works with several ADU formats, allowing homeowners to choose the option that best fits their property and goals.
Detached ADUs are standalone structures separate from the main residence. These backyard cottage or granny flat style units offer privacy and independence while remaining on the same lot. JDI Construction designs and builds detached ADUs to complement the primary structure and meet Portland's zoning and building requirements.
Attached ADUs share a wall or roof with the main dwelling and are often a good fit for urban or suburban properties where space is limited. JDI Construction evaluates the existing structure and designs an attached unit that adds functional living space without compromising the overall property.
Garage conversion ADUs are among the more cost-effective options, as they make use of an existing structure rather than building from scratch. JDI Construction approaches these garage conversion contractor projects with attention to structural integrity, transforming the space into a livable, modern unit.
Basement conversion ADUs allow homeowners to add living space without changing the exterior footprint of the property. These projects tend to require fewer external modifications, making them a practical choice for many Portland homeowners. JDI Construction works carefully to maximize usable square footage in these conversions.
Above-garage ADUs are built on top of an existing garage structure, preserving yard space while adding a separate living unit. JDI Construction has experience designing and constructing these units in compliance with local building codes.
Interior ADUs are created within the existing primary structure, often utilizing underused spaces such as attics or upper floors. This approach can be a practical way to add a JADU or in-law suite without significant exterior changes.
Working with JDI Construction on Your ADU Project
JDI Construction is a locally owned and operated company serving the Portland area. Their team manages the administrative side of ADU projects, including obtaining the necessary permits and ensuring compliance with local zoning laws and building codes — a process that can be complex given the range of regulations that apply in Portland.
The cost of an ADU build varies depending on the type, size, design complexity, and finishing materials involved. JDI Construction provides project-specific estimates during the initial consultation phase, with an emphasis on transparent pricing throughout the process.
Project timelines also vary based on the scope of work. JDI Construction assigns dedicated teams to each project and works with clients to establish and meet agreed completion schedules. Communication is maintained throughout the build to keep homeowners informed at each stage.
For Portland homeowners considering a detached ADU, garage conversion, casita, or any other type of accessory dwelling unit, JDI Construction offers a range of services to support the project from initial design through to completion.
