Comprehensive Design with Construction in Mind.
Additions | Renovations | New Construction
Strategic residential design for homeowners and developers: maximizing your property's potential, enhancing everyday living, and creating lasting value
Custom home plans ready for permitting & construction
As the first step in every design, we evaluate your property, zoning regulations, and permitting requirements to identify opportunities, anticipate challenges, and develop a clear strategy for unlocking your property's full potential.
Strategic Planning
Our design process is rooted in real construction experience. Years of collaborating with contractors and tradespeople have shaped the way we design, coordinating structure, framing, material transitions, and constructability into comprehensive drawing sets that are practical, coordinated, and ready to build.
Construction Based
Every floor plan is thoughtfully designed around the way people live, creating homes that are intuitive, functional, and timeless. Great design doesn't just improve everyday living; it adds lasting value for homeowners and developers alike.
Thoughtful Design
“Working with her feels like having a true partner, not just a designer.”
Informed Decisions. Personally Led.
As a boutique residential design studio, you'll work directly with Olivia Spence, Principal Designer, from concept through permitting. She personally leads every project, ensuring thoughtful collaboration, clear communication, and a design process tailored to your goals.
With proactive planning, attention to detail, and responsive communication, every decision is made with a deep understanding of your project from start to finish. The result is a more personal, streamlined experience—and a set of thoughtfully coordinated drawings that support a smoother construction process.
Homeowners
Planning a renovation, addition, or new build, and not sure where to start?
You'll have a trusted designer and consultant guiding you through every stage of the process, from the first conversation and early planning to permit-ready construction drawings, so you can move forward with clarity and confidence.
Investors & Developers
Planning your next development or investment project?
OSDC works as an extension of your team, anticipating challenges, identifying opportunities, coordinating with consultants, and delivering clear, construction-ready drawings that keep projects moving forward.
More than just drawings:
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Our contractor recommended Olivia, and after meeting her and reviewing her work, we immediately connected with her sense of design and willingness to work with our aesthetic.
Her understanding of construction and permitting complemented our contractors’, and together they handled unexpected issues with confidence. Beyond her expertise, Olivia’s calm, focused nature helped steady what can otherwise feel like a chaotic renovation.
We’ve already hired her again for another major project.
Anne Bergeron & Steve Wellmeier
Homeowners | Blackstone Home Office -
Olivia is collaborative, creative, and genuinely easy to work with. She communicates well, stays open to feedback, and approaches projects with a calm, practical mindset.
She also understands construction, which shows up in her drawings and the way she handles issues on site. That combination of creativity and real-world awareness makes her a strong partner on any project.
Frank Winthrop
Owner & Founder, Winthrop Renovations -
The most valuable part of working with Olivia is her ability to combine creativity with practicality. She understands our vision but also considers functionality, timelines, and budgets, which makes the entire process smooth and efficient. Her attention to detail and clear communication have saved us time and elevated the overall quality of our projects.
Olivia’s understanding of construction and permitting gives us a high level of confidence. She designs with real-world constraints in mind and ensures everything aligns with permitting requirements, helping us avoid delays and unnecessary costs. Working with her feels like having a true partner, not just a designer.
Kyltiff Investments and Consulting
Investor | Developer | Contractor