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Our Services

Renovations & Additions

As a fully integrated architecture and construction firm working on Cape Cod, the Islands of Nantucket and Martha’s Vineyard, and throughout coastal southeastern New England, we provide comprehensive services to support the design and construction requirements of every custom project—from site selection and permitting to landscape design to post-construction maintenance.

We bring the same exceptional craftsmanship and ethos of timeless design to the challenges of renovating and expanding existing structures to create transformations that endure.


Our experience and skills, respect for natural and built context, and our knowledge of historical architecture, including local New England vernacular houses, makes us well-qualified for historic restoration and transformation.

Working as one integrated team, we approach renovations and additions sensitively with an organized and efficient design and construction process.

PSD team members at a residential construction job site.
PSD renovation on a waterfront property.
PSD carpenter at work.


From antique to contemporary, PSD brings the same philosophy of timeless design and exceptional craftsmanship to the challenges associated with remodeling and expanding existing structures.

Whether you are looking to restore, renovate, or expand, choosing an integrated design and construction firm is just as critical as with new construction. Existing homes, regardless of their age, present their own set of challenges that require a team that collaborates closely and consistently.

The new design must meet your needs and vision, often while also complementing the existing structure. If the home is historic or located in a historic district, we work with historic regulatory requirements to ensure the commission’s acceptance of the design and materials we use.

No matter what your new vision for your current home may be, we have the skills to strike the right balance between the past and future.

Select Renovations & Additions Projects