We bring extensive experience in site design plans, septic system design and drainage, wastewater collection and treatment, stormwater management and more.


Our comprehensive surveying services span everything from plot plans and stakeouts, aerial mapping and hydrographic surveys to construction and as-built plans.

Environmental Permitting

We complement our deep understanding of local, state and federal regulations with expertise in dock construction, dredging, wetlands, shoreline stabilization and more.

Our Work

Complete engineering services for Cape Cod homeowners

CIE’s field team using a wireless GPS-enabled field controller

Site plan for residential development in Woods Hole

Rebuild/repair of existing seawalls

Hydrographic survey mapping depth/contour of ocean floor

Project Life Cycle

Most of our projects with landowners and municipalities involve some or all of these services.


“We were a Holmes & McGrath client for several years, and they created site design plans that were included for permitting purposes in an application to our town’s permitting authorities. Following the merger, the Cape & Islands Engineering team got involved to secure final approval for the project from the zoning board. We’ve been very pleased with the transition to CIE.”

Joe Noonan
Homeowner, Falmouth

“I’m a long-time Cape & Islands Engineering client. Matt Costa and his team have guided me through very complex engineering and environmental permitting projects for my two marinas.”

Tim Leedham
Marina owner, Falmouth and Mashpee

“For over a decade, Matt has guided my family in selecting contractors, building multiple sewalls, making difficult design decisions, working with town boards, and solving construction problems on many occasions. Matt and his team truly stand out as true professionals delivering quality work and exceptional service. A master at his profession, Matt is logical and sensible, always approachable and compassionate, and seeks to understand his clients’ needs. I highly recommend Cape & Islands engineering. They have my utmost respect and appreciation.”

Jay Decoteau
Homeowner, Falmouth

“We have worked extensively with the entire Cape & Islands team over the past 10 years and recommend his team highly. They’re honest, hardworking and smart. When it comes to Cape Cod land and permitting issues, they always get us the best possible results.”

Mark Bogosion
Owner, Longfellow Design Build

“My family has regularly turned to Cape & Islands for all of our engineering needs, and they have always delivered. They have addressed a variety of complicated landscaping, septic and dock issues, working closely with local conservation and health officials to develop solutions that have met or exceeded state and local environmental performance standards.”

Leonardo Caruso
Homeowner, Mashpee

“My wife and I own a large commercial building in Falmouth, which has presented some interesting challenges related to zoning and parking issues as well as a significant opportunity for development of an unused and underutilized portion of the property. Cape & Islands has been our ‘go-to’ resource in researching solutions to those problems and exploring this opportunity.”

Tom Scanlon
Commercial real estate investor