Transform Your Property with a Professional Detached ADU

From Feasibility to Final Walkthrough

Building a Detached Accessory Dwelling Unit (DADU) shouldn’t feel overwhelming. Modera Services guides homeowners through every phase with clarity, expertise, and a singular focus on DADU development.

Why DADU Expertise Matters

Most general contractors build DADUs occasionally. We build them exclusively. That focus means faster permits, efficient costs, fewer surprises, and better results.

Services You Can Count On

Each phase of our process stands alone, giving you full control and clarity before moving forward.

Feasibility Analysis

We analyze your property’s zoning, setbacks, utilities, and site requirements to deliver a data-backed buildability assessment.

Professional Design

We create custom DADU designs and floor plans that maximize your property’s potential while ensuring code compliance.

Expert Permitting

We turn complex city regulations into approved building plans, manage all city department communications, and keep the permit process moving forward without delays.

Complete Construction

We manage every trade, every timeline, and every detail. You get a finished DADU built to spec, on schedule, and ready for occupancy.

View Real DADU Designs

Explore our portfolio of pre-designed DADUs. Studios to two-bedroom units, all built to code and designed for long-term value.

From Consultation to Completion

You always know where your project stands and what comes next because we’ve built a fully transparent and completely predictable process.

Initial Consultation & Site Assessment

We walk your property together, discuss your goals, and provide an honest evaluation of what makes sense for your situation.

Comprehensive Feasibility Report

You receive a detailed analysis of your property showing exactly what can be built, potential constraints, and the best use of the available space before any design work begins.

Custom Design Creation

Work with our team to customize your floor plan and design a Detached ADU that perfectly fits your goals and imagination.

Strategic Permitting

We navigate the permit approval process, leveraging our expertise in local codes to get your plans approved efficiently.

Professional Build Management

Your DADU goes from foundation to finish under our direct supervision, with regular updates and quality checkpoints throughout construction.

Serving Homeowners Throughout The Greater Puget Sound

Each city has its own unique codes and requirements. We know them all. Our deep knowledge of local regulations means fewer delays and better outcomes. We proudly serve the Puget Sound region, from Seattle to the Eastside, down to Tacoma and every city in between.

Let's Discuss Your Property's Potential

Most general contractors build DADUs occasionally. We build them exclusively. That focus means faster permits, efficient costs, fewer surprises, and better results.