The National Green Building Standard and What I Can Do for Green Renovations on Historical Homes and Buildings

Historical homes are important to our housing market. Renovations on historical homes can be challenging because of surprise damage, regulations and preservation. Take this challenge and top it with making an older home green. This is where National Green Building Standard® (NGBS) comes in handy.

The National Green Building Standard® (NGBS) is a guide to certification for green homes. Chapter 11 in this guide is dedicated to the "Certification for Existing Buildings." Building professionals can use this guide for a comprehensive, voluntary, above-code approach to design and construct residential and mixed-use properties and for land development.  Builders are able to take this guide and use it as a "roadmap for green renovation projects" and match it with historical preservation regulations

Many builders are taking old historic buildings and turning them into residential properties. Things they need to consider are how many units will they include in their design and how much energy and water the proposed property will use versus how much the post-rehab used.

This can be a difficult task however with the NGBS these types of projects have more flexibility. Under the NGBS mandatory, historically designated buildings with historic designation restrictions are exempt from NGBS mandatory practices for unaltered portions. Cargill Falls Mill in Putnam, Connecticut is a great example.

Cargill Falls Mill is located on the Quinebaug River and is deemed a historical building. The property was turned into over nine acres of residential space with 125 units.

Karla Butterfield, NGBS Green Master Verifier, of Steven Winter Associates noted: “As a historically registered landmark, the complex was under strict renovation requirements. The NGBS remodeling program was the only residential tool that allowed the project to quantify the energy and water savings while addressing the great efforts made by the project team to reduce material and resource consumption, improve indoor air quality, address sustainable site strategies, and promote health and wellbeing for residents.”

Old buildings, especially in urban areas, are perfect projects to make into residential space. To learn more about the process visit the National Association of Home Builders site where NAHB’s Sustainability and Green Building efforts are explained. You can also find tips on water efficiency, energy efficiency, indoor air quality, and other building science strategies.

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New Homes Constructed With Central AC Are More Common in Some Regions Than Others

Ninety-five percent of new single-family homes built in 2020 were built with central air conditioning (AC) systems according to the Census Bureau’s Survey of Construction (SOC). Homes with central AC have been increasing since 2000 when there were only 85.5%.

The percentage of new single-family starts with central AC is different in the nine Census divisions. In West South Central, South Atlantic and West North Central divisions 100% had central AC installed, in East South Central 99%, and in East North Central 96%, in New England 83% and the lowest in the Pacific with 80%.

Ninety-nine percent of new single-family homes were built with an air or ground source heat pump or a forced-air system for the primary heating source of the home. As for each division, in the East South Central 77%  air or ground heat pumps were used, in the South Atlantic 75% and in the West South Central 20%. Air or ground heat pumps are primarily used in warmer climates because they are less efficient in colder regions. As for fuel, 50% of new homes built in 2019 used natural gas while only 45 used electricity.

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A Spike in Four or More Bedrooms in New Single Family Homes

The housing market is strong and both resale and new homes are strongly in demand. According to the U.S. Census Bureau Survey of Construction's (SOC) 2020 new single-family homes with four or more bedrooms increased. This trend could be because of more homeowners having to live work and play in their homes due to the pandemic.

The SOC reported that across the country 45.2% of new single-family homes started in 2020 had four or more bedrooms. This was up from 2019's report of 42.6%. Again this increase is due to the shift in buyers' desires in a home. The pandemic devastated the US economy in 2020 paving the road for record low interest rates. The low rates coupled with low housing inventory shot house prices up. First-time homebuyers who would purchase a home with less than four bedrooms were pushed out of the market.

This caused a shift in homes.  The 2020 SOC reduced share of new homes started with 2 bedrooms or less (9.7 percent vs 10.5 percent the previous year) corroborates the lowered presence of first-time homebuyers in the new home market that year.

The East North Central region was the only division that showed a decline in new single-family homes built with four or more bedrooms. Across the board, homes with less than 1,200 square feet had more homes built with fewer bedrooms.

If you are in the market for a new home, contact your local Realtor. A professional Realtor can help you through the whole process getting you what you want for the price you want.

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Awards for Spec Homes That Are Built As Healthy Homes

With a strong housing market and shortage of inventory, many builders have gone from building custom homes to speculative homes only. Builders do have to still target buyers. Smart homes and healthy homes are a way to do this.

The industry leaders report that buyers will pay a premium for energy efficiency, smart home tech and healthy homes. Once the pandemic began, health and energy savings have become even more of an important factor. In fact, former National Association of Home Builders Chairman Randy Noel has turned to building spec only.

Noel, from Reve, Inc., spent 30 years building custom homes only. He is now currently building a spec home for the Home Builders Association of Greater New Orleans' Parade of Homes. The home features products and materials that are efficient, resilient, healthy and smart home tech.

“You can, with a great deal of confidence, build a healthier home for your customers going forward,” Noel stated following the (WWYW) certification process.

Healthy homes are recognized under the pilot the Wellness Within Your Walls (WWYW). There is a list of Healthy Home Features which include:

• Maximizing natural light,
• Detaching the garage from the home and connecting it via a breezeway,
• Installing locking cabinets for pharmaceuticals and garden chemicals,
• Controlling humidity for the outside fresh air being brought into the home and reducing stress on the heat pump,
• Removing contaminants from the incoming utility water through reverse osmosis water filters,
• Installing automatic faucets to reduce touch points,
• Incorporating an electromagnetic field (EMF) control cabinet — the interior of which is painted with a special electromagnetic wave-blocking paint — for electronics charging,
• Integrating automatic vents in the bathroom to exhaust damp air from the home,
• Installing a non-combustible, electric fireplace and induction cooktop,
• Incorporating a kitchen herb wall.

If you are interested in seeing a healthy home, the Home Builders Association of Greater New Orleans' Parade of Home is located in Ashton Plantation in Luling, LA. The home has been given the 2020 Best in American Living Gold Award for Healthy Home and was a finalist for the 2020 NAHB Global Innovation Award International Home the Year.

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