San Mateo County
Interior Design in Hillsborough, CA
Architecturally significant estates, quietly brought up to date.
Hillsborough is one of the peninsula's grandest residential enclaves, known for sprawling estate lots, winding sidewalk-free lanes, and a tradition of architecturally significant homes. Interiors here are expected to honor that heritage while meeting the standards of modern luxury living.
We design Hillsborough interiors that respect a home's architectural lineage, whether Tudor, Mediterranean, or mid-century estate, and discreetly modernize it. Our work balances preservation with comfort, adding light, flow, and refined materials without erasing the character that makes these homes singular.
Selected work across the Bay Area
What we do in Hillsborough
- Interior design in HillsboroughFull-service interior design, from concept and space planning to materials, lighting, and the finishing details that pull a home together.
- Whole-house remodels in HillsboroughTop-to-bottom home remodels that rework the floor plan, modernize every system, and bring a single, considered design language to the whole house.
- Kitchen & bath remodels in HillsboroughKitchen and bathroom renovations built around how you actually cook, gather, and unwind, with durable, beautiful materials throughout.
- Home additions in HillsboroughAdditions that add the space you need, a primary suite, a great room, a second story, while keeping the home cohesive inside and out.
- ADU design & build in HillsboroughAccessory dwelling units for guests, family, or rental income, designed to feel intentional rather than tacked on.
- Custom homes in HillsboroughGround-up custom homes designed and delivered as a single, coordinated process from first sketch to final walkthrough.
- Outdoor & exterior transformations in HillsboroughFacades, outdoor living spaces, and landscapes reworked so the outside of the home is as considered as the inside.
Neighborhoods we serve in Hillsborough
Stately Tudor, Mediterranean, and Georgian estates set Hillsborough's tone.
- Lower North
- Tobin Clark
- Country Club Manor
- Crystal Springs
- Carolands area
Planning a project in Hillsborough?
Tell us about your home, your goals, and your timeline. We will get back to you to talk through how New Key Design & Co can help.
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