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Get started designing and building your sustainable home!

Green home construction using renewable energy sources.

The gold standard in building quality green homes

Net Zero &
High-Performance Homes in Greater Boston

GREEN HOME BUILDING SERVICES
GREEN HOME BUILDING SERVICES

We build high-performance homes that are comfortable, healthy, and beautiful. As your green advisor, Mathew Roth will show you where to start and how to make your vision a reality — from the first conversation about performance goals to the day you move in.

Mathew Roth
Owner, Hawthorn Builders

Boston home builders specializing in green design.

What ‘high-performance’ means

A high-performance home isn’t a style — it’s a standard. An airtight envelope, the right insulation and windows, and a ventilation system that keeps indoor air fresh in every season. The result is a home that holds its temperature, costs less to run, and feels better to live in. Every custom home we build meets specific performance needs; a net-zero or passive house takes that standard further.

Phius-certified passive house building

Hawthorn Builders is a Phius Certified Builder — trained to build to the rigorous Phius passive building standard, the most widely used passive house certification in North America. Passive house means a home designed to need very little energy to heat and cool in the first place: exceptional insulation, airtight construction, high-performance windows, and ventilation that recovers heat. If you’re considering a passive house, talk to us early — the standard is set in design, not added later.

GREEN HOME BUILDING SERVICES
Energy-efficient renovations for sustainable homes.
  • 5★★★★★

    Hawthorn Builders has been recognized for both design and service in the annual Best of Houzz awards for the top-rated home pros in the design-build category. Houzz features a "design build firms near me" tool for users to search for experts in their area.

CUSTOM HOMES

  • Boston Magazine subscribers named Hawthorn Builders to the Best of Boston Home list for the High-End Home Remodeling, West category

Luxury home builders using sustainable materials.

  • Named a second time to the Best of Boston Home awards, Boston Magazine's list of winners based on their annual survey to subscribers in the Boston Area, Hawthorn Builders was the top selection in the Design/Build, West category.

Green builders focused on indoor air quality and health.

  • Accredited since May of 2018, Hawthorn Builders boasts a BBB Rating & Accreditation of A+

Sustainable home construction with expert builders.
  • Hawthorn Builders, renowned for its green energy building design and construction methods, holds a coveted certification from Phius (Passive House Institute US). Phius Certified Builders are construction professionals trained to meet the challenges of building to the rigorous Phius passive building standard. Phius certifies the most passive house projects and builders in North America who put passive at the forefront of the zero-energy movement.

An Award-Winning Custom Home Builder

We built a NET ZERO home

producing more energy than it consumes — featured here: Net-Zero Farm House

Sustainable home construction using innovative materials.
Energy-efficient home designs for healthier living.
Energy-efficient home construction for sustainable living.

Call to learn how we can help you

build a high-performance, energy efficient, healthy home

Boston green builders using advanced technologies.

Download our FREE guide on

how to build a high-performance green home

GREEN HOME BUILDING SERVICES

Sustainable building with your

physical and mental health at the forefront

GREEN HOME BUILDING SERVICES
GREEN HOME BUILDING SERVICES

We had a wonderful experience with Hawthorn! From the beginning they were professional, organized, and communicative. The end result is amazing and we are happy in our new home. We actually miss the building process because we had so much fun working with the Hawthorn team!

Jeff & Anne
GREEN HOME BUILDING SERVICES

Our satisfied clients

Call us and we'll be in touch within 24 hrs

Frequently asked questions

  • What is a passive house?

    A home built to the Phius passive house standard — so well insulated and airtight that it needs very little energy to heat and cool. Comfort comes from the building itself, not from running equipment harder.

  • What is Phius certification?

    Phius (Passive House Institute US) certifies builders and projects to a rigorous energy standard. Hawthorn is a Phius Certified Builder, trained to meet that standard on real projects.

  • Can an existing home be made net zero?

    Often, yes — with the right envelope, systems, and solar. It depends on the house. luxury renovations/additions. Talk to us about your home and we'll tell you honestly what's possible.

  • Are energy-efficient homes more expensive to build?

    Up-front costs can be higher than a conventional build, but the investment pays back in lower energy and repair costs for as long as you live in the home — and in resale value. We'll show you the trade-offs honestly before you commit.