Second story addition by BLB Design / Build in Newburyport, MA

How to Build an Energy-Efficient Home

As energy costs rise and the impacts of climate change become more pressing, building an energy-efficient home has become more critical than ever for homeowners. A well-designed, energy-efficient home lowers your carbon footprint, reduces utility bills, and creates a healthier living environment. Whether starting from the ground up or planning a major renovation, here are key techniques for constructing a green home that performs as beautifully as it looks.

Hiking Trail at the Crane Estate in Ipswich, MA

1. Start with Smart Design

The foundation of any energy-efficient home is thoughtful planning. A good design will minimize waste and maximize performance before construction even begins. A recent update to the International Energy Code requires roofs to leave a certain amount of square footage free for solar panels, so position your home to take advantage of the sun. Other design factors impacting green building include south-facing windows for optimal heating in the winter, and proper overhangs and shading can reduce cooling loads in summer. The shape of your home is another thing to consider. A simpler, compact building with fewer corners and indentations minimizes surface area, which reduces heat loss.

Living room addition at the Littles Farm whole home remodel project in Newbury, MA by BLB Design / Build

2. Build a Tight Envelope

An energy-efficient home starts with a well-sealed building envelope, which includes the walls, roof, windows, and foundation. Invest in high R-value insulation appropriate for our Northeast climate zone. For maximum performance, consider spray foam, cellulose, rigid foam, or even SIPS construction. Windows should include ENERGY STAR® ratings and doors with double or triple glazing, low-E coatings, and quality frames to reduce heat transfer. You should also use caulking and weatherstripping to eliminate drafts around windows, doors, and penetrations.

Sunset Club on Plum Island in Newbury, MA

3. Use High-Efficiency HVAC and Appliances

Your home’s mechanical systems and appliances account for a significant portion of energy use. Consider high-efficiency options like heat pumps, radiant floor heating, or mini-split systems. When shopping for appliances, look for ENERGY STAR® certified appliances that use less energy and water without sacrificing performance. Additionally, Massachusetts has set a goal of achieving net-zero energy efficiency by 2050, including transitioning to all-electric homes, which will benefit green building practices for years.

4. Incorporate Sustainable Materials

The materials you choose to renovate your home will impact the environment and indoor air quality. To help reduce the carbon footprint associated with transportation, try to source your materials and furniture locally. Using reclaimed wood, recycled metal, or composite materials made from post-consumer content is another excellent way to stay green while remodeling your home. We also recommend utilizing paints, sealants, and adhesives that are low in toxic compounds to ensure healthier indoor air. Lastly, regularly change your HVAC filters every 3 months for clean air flow throughout your home.

Modern soaking tub at transitional bathroom remodel and addition in Newburyport, MA by BLB Design / Build

5. Manage Water Wisely

Water conservation is another critical element of sustainable home building. To reduce water use without sacrificing performance, choose toilets, faucets, and showerheads with the WaterSense label, which identifies them as water-efficient products. Additionally, Massachusetts’ plumbing code regulates the gallons per minute (GPMs) on plumbing fixtures, which coincides with water efficiency. Thoughtful landscaping can also help conserve water by using native, drought-tolerant plants that require less irrigation and maintenance.

Building an energy-efficient home is about making smarter choices from the ground up. It’s not just about saving money; it’s about creating a better future for you and the planet. By incorporating green building techniques, renewable energy, and efficient design, you’re investing in a home that’s comfortable, durable, and sustainable for years.

Are you ready to build your energy-efficient North Shore home?  Connect with us to see how we can help.