About Roslin

Fifteen years.
Hundreds of homes.
One standard.

Roslin Design & Build is a Norwood-based residential design–build firm founded by James Dalelis. What began as a one-man operation has grown into a trusted name for families across Massachusetts who refuse to compromise on the place they call home.

James Dalelis · Founder
The Founder

A builder who still answers his own phone.

James Dalelis founded Roslin on a simple idea: the families trusting you to build their home deserve to talk to the person actually building it. Fifteen years and hundreds of projects later, that idea hasn't changed.

James grew up around construction in Norwood and has spent his career building, renovating, and expanding homes across Massachusetts. He's seen what happens when builders cut corners, when communication breaks down, when the wrong person is in charge. Roslin exists so that doesn't happen.

Every project — from a small renovation to a ground-up custom home — runs through James personally. Every client has his number. Every detail, from foundation to final paint, gets the same attention as if it were his own house.

James Dalelis Founder & Lead Builder
What We Stand For

Four principles that guide every project.

01

Quality Above All

The cheapest material, the fastest method, the easiest shortcut — none of those make it into a Roslin home. If it's worth building, it's worth building once.

02

Direct Communication

You'll never wonder what's happening on your project. Weekly updates, open phone lines, and zero runaround. Ever.

03

Craftsmanship

Trim that lines up. Tile that's level. Cabinets that close softly. The small things are the whole job — and they're what people notice for the next thirty years.

04

Long Memory

We're a Norwood company building for our neighbors. We're going to see you at the grocery store. The work has to hold up — because the relationship will too.

By the Numbers

A quiet record of long, steady work.

15+

Years in business

Continuously serving Massachusetts homeowners since the early 2010s.

100s

Homes touched

From small renovations to full custom builds across Greater Boston.

1

Point of contact

James, on every project. Not a sales rep. Not a project manager you'll never meet.

100%

Standing behind the work

If something isn't right, we make it right. That's not a policy — it's the job.

Begin

Let's talk about your project.

Pick up the phone or send an email. James will call you back personally — usually within a day.

Get in Touch