ADU Architect in Pasadena, CA

Stearnlee ADU

Wells

Westminster, California

Wells ADU

Sennikoff Architects throughout the years has designed and permitted ADUs throughout Pasadena and the greater Southern California area, including detached backyard units, garage conversions, and above-garage living spaces.

Our completed projects span a range of styles and budgets, each one designed to feel like a natural extension of the property rather than an afterthought.

Our ADU Process

We guide you through every phase of the project:

Initial Consultation — We assess your property, discuss your goals, and walk you through what's feasible under current Pasadena zoning rules.
Schematic Design — We develop design options that balance your vision with practical and regulatory constraints.
Construction Documents — We produce the complete set of drawings required for permit submittal.
Permit Coordination — We manage communication with the City of Pasadena through the approval process.

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The value an ADU adds to your property

Whether you're looking to add rental income, house a family member, or increase your property's value, an Accessory Dwelling Unit (ADU) is one of the smartest investments a Pasadena homeowner can make.

At Sennikoff Architects, we specialize in designing ADUs that are thoughtfully tailored to your property, your lifestyle, and your goals — from the first sketch to the final permit approval.

What Is an ADU?

An ADU is a self-contained residential unit built on the same lot as an existing single-family home.

In California, recent state legislation has made it easier than ever for homeowners to build ADUs, and Pasadena has embraced these changes with streamlined permitting that makes the process more accessible.

ADUs can take several forms depending on your property:

Detached ADUs — A fully separate structure built in your backyard
Attached ADUs — An addition connected to your primary home
Garage Conversions — An existing attached or detached garage converted into a living space
Junior ADUs (JADUs) — A smaller unit created within the existing footprint of your home

Why Work With an Architect for Your Pasadena ADU?

Many homeowners assume an ADU is a simple construction project that doesn't require an architect. In reality, the design and permitting process involves navigating Pasadena's zoning codes, setback requirements, height restrictions, and utility connection rules. These are details that can derail a project or add unexpected costs without experienced guidance.

As a California licensed architect with nearly 35 years of experience, we bring award-winning design sensibility and deep local knowledge to every project. We don't offer cookie-cutter ADU plans. Every unit we design is custom and conceived to complement your existing home architecturally while maximizing livable space and long-term value.