1 Plus 1 Design

A Legacy of Artistic Design

One Plus One Design boasts over 20 years of experience crafting meticulously curated spaces that resonate with their clients. Led by husband-and-wife team Sara and Brandon Diem, the firm specializes in breathing life into both residential and commercial spaces across the Greater Boston area.

Expert Design Expertise

Our expertise extends far beyond aesthetics. We take a holistic approach to design, meticulously planning every element, from site planning and exterior aesthetics to interior space planning, finishes, furniture, and technology integration. We are well-versed in sustainable design practices and prioritize minimizing environmental impact wherever possible.

Diverse Experience, Varied Project Portfolio

Over the course of our careers, we have completed projects of diverse sizes and types, including:

• Residential: Elegant homes, cozy contemporary spaces, and luxurious penthouses.
• Commercial: Sleek offices, vibrant retail spaces, and inspiring corporate environments.
• Institutional: Educational facilities, healthcare centers, and cultural spaces.
• Hospitality: Boutique hotels, cozy bed and breakfasts, and distinct restaurants.

Client-Centric Approach

We believe in collaborative design, ensuring each project reflects the unique personalities and aspirations of our clients. We actively listen to your vision and work alongside you every step of the way, from initial concept development to the final realization of your dream space.

Passionate and Experienced Team

Our founders, Sara and Brandon, bring over 45 years of combined experience to the design table. They are both passionate advocates for innovative design solutions that are both practical and aesthetically stunning. Their diverse backgrounds and extensive knowledge are reflected in the exceptional quality and personalized attention to detail that every project receives.