Longfellow Design Build

About

Longfellow Boston Parallax

The quality of a home shows up in the places most people never inspect — the tolerance at a window jamb, the way a roofline meets a chimney, the flow of a kitchen at 6 a.m. Longfellow Design Build is built to get those places right, with architects, engineers, and builders working from the same drawings across Greater Boston, Cape Cod, the White Mountains, and Southwest Florida.

I've worked with lots of builders and have never experienced such great responsiveness and quality work.

Design Build Philosophy

Design-build is a delivery model, not a tagline. It determines who is in the room, who is accountable, and how information moves through a project.

In traditional delivery, you hire an architect who designs your home, then bid that design to contractors. The architect and builder have separate contracts, separate interests, and no structural obligation to communicate efficiently.

Our model puts the architect, structural engineer, civil engineer, and construction manager on the same team from the first meeting. One contract. One chain of accountability. Everyone shares the same goal: your project, delivered on time, on budget, built exactly as designed.

Our Story

Origins

Mark Bogosian founded Longfellow Design Build in Falmouth in 2012. He had wanted to build since childhood, when he worked alongside his father on the family home. In 2010, he left Boston College convinced that design-build, done well, produces better homes than the conventional model of an architect handing work off to a contractor. Through the years, Longfellow’s homes became recognizable: carefully planned, finely detailed, built from materials chosen to hold up under daily use and close inspection. They are livable in the truest sense, homes that work as well as they photograph. The firm earned a following on that standard, and grew because of it.

The Work

The firm’s work covers a wide range. Longfellow has developed luxury residential projects such as Lighthouse Station at Woods Hole, along with smaller subdivisions across Massachusetts. Its reach extends beyond New England as well: when Hurricane Ian struck Southwest Florida in 2022, Longfellow stepped in to help rebuild homes on Captiva Island, where Bogosian owns a home. The firm still takes on a small amount of work in the region.

Cape Cod and Boston

Longfellow now operates from Falmouth, Boston’s South End, and Lincoln, New Hampshire. The Cape Cod office serves clients from the Upper Cape through the Islands. The South End office, at 549 Columbus Avenue, extends the firm into Boston’s most architecturally demanding residential work: nineteenth-century brownstones on their original foundations, rowhouses where structural review precedes every design decision, additions to buildings that long predate the plans now drawn for them. In that setting, keeping engineers and architects under one roof isn’t an advantage. It’s a baseline. In Falmouth, Bogosian’s work reaches past private homes into the town’s commercial life. His hospitality projects there include the Flying Bridge Restaurant and Marina, the Falmouth Tides Hotel, and Timber Axe Bar & Bowl.

South Peak Resort

The Lincoln office anchors one of New England’s most ambitious residential developments. In 2021, Mark acquired South Peak Resort, at the base of Loon Mountain in Lincoln, New Hampshire, with a clear idea of what it could become: a ski-in, ski-out mountain community designed and built to a standard the White Mountains hadn’t seen. In partnership with Loon Mountain, South Peak is emerging as one of the East’s premier alpine retreats: slopeside homesites and luxury townhomes between the Pemi River and Loon’s groomed trails, with private lifts and a level of architectural consistency that comes only when one firm builds most of what stands there. Longfellow is that firm. At South Peak, the homes carry the material language it has developed over more than a decade: wide-plank white oak, regional stone, vaulted great rooms framed to open onto the mountains without interruption. Restaurants and gathering places are rising alongside the residences, among them Basecamp Brewing, Snowfish Sushi, and The Nest. South Peak is becoming what Bogosian set out to build.

Recognition

Boston Home Magazine has named Longfellow Best of Boston Home for High-End Home Remodeling in both 2025 and 2026. The Builders and Remodelers Association of Greater Boston has recognized the firm with multiple PRISM Gold awards. In 2026, BRAGB named Longfellow its Builder of the Year, the industry’s acknowledgment of a firm that has produced work of consistent quality under demanding conditions for more than a decade. Those honors are part of a longer pattern: Longfellow wins industry awards regularly and appears often in the region’s lifestyle publications.

What We Do

Services

Pre-Construction

  • Feasibility Studies
  • Lot Development
  • Project Management
  • Engineering & Testing
  • Meeting Representation
  • Permitting
Building
  • FEMA
  • Cape Cod Commission
  • EPA
  • Historic

Architectural & Design

  • Schematic Design
  • Design Development
  • Construction Documents
  • Floor Plans
Interior Design
  • Material & Finish Selection
  • Custom Window Treatments
  • Lighting Fixtures
  • Furniture Procurement

Construction

Site Work
  • Excavation
  • Foundations
  • Paving
  • Landscaping
Structure & Envelope
  • Framing
  • Roofing
  • Siding, Soffit & Fascia
  • Doors & Windows
Building Systems
  • Electrical
  • Plumbing
  • HVAC
Interior Finishes
  • Drywall
  • Finish Carpentry
  • Custom Millwork & Cabinetry
  • Flooring
  • Painting
Smart Home & Lifestyle Technology
  • Home Automation
  • Lighting Controls
  • Whole-Home Audio & Video
  • Gas & Electric Fireplaces
  • Outdoor Living (outdoor kitchens, fire features, landscape lighting)
  • Outdoor Screens, Storm Shutters & Awnings

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Let's Chat

Every project begins with a conversation. Call 774-255-1709, or click the button. We'll be in touch to set up a no-obligation meeting or onsite visit.

Call 774-255-1709