It is impossible to value green homes without data that
accurately details home features designed to increase energy efficiency,
sustainability, or healthy living. For property owners in the US, most home sales
data is recorded through the Multiple Listing Service (MLS). There are over 900
independently owned MLSs collecting data fields on properties across the country.
These independently owned MLSs are, quite literally, the brains of the
residential and commercial real estate transaction. In the largest metro areas
of the US, multiple listing services include data fields that reach for higher
standards of home energy efficiency and sustainability. Version 1.2 of the Real Estate Transaction Standard Data
Dictionary was published in November, 2013, and includes clear definitions
of green fields for MLSs to implement. The MLS Green Implementation Guide offers
additional guidance to MLSs that have not taken the opportunity to upgrade green
property data fields. It will also assist MLSs that wish to migrate to green
data fields which have been documented in the Real Estate Transaction Standard Data Dictionary as part of an
overall data dictionary compliance strategy. These documents will serve as
guidance for specific and consistent green data sets for MLSs nationwide.
The Valuation of Green Buildings: Background and Core Competency was
produced by the Appraisal Practices Board (APB) as a first exposure draft to
stakeholders in July of 2013. It is the first document that clearly establishes
best practices for appraisers to value green buildings in an ethical and
competent manner. Although the document will not be finished until 2014, the
first exposure draft was open for public comment in July of this year. One of
the most intriguing notes referred to appraisers having to pay attention to the
potential for a “brown discount” to establish the correct valuation of
properties. Homes subject to a “brown discount” are homes in active green
markets without green upgrades and subject to obsolescence.
In Mid-March of 2013 a ground
breaking study of energy efficient homes and was released by the University of
North Carolina at Chapel Hill Center for Community Capital. In the study author
Dr. Nikhil Kaza states that owners of energy efficient homes are 32% less
likely to default on their mortgages and that "the mortgage-lending
process does not include the financial benefits of energy efficient savings in
its underwriting decisions."
In a year of great import for establishing the value of green homes, Exploring California PV Home Premiums
was released on December 12th. A new study from Lawrence
Berkeley National Laboratory found that houses with rooftop solar panels
sell for higher prices than comparable non-solar homes. California home
buyers are willing to pay a premium for solar PV installed on resale
residential properties.
Among the houses studied, that value of
homes with solar PV systems had a premium of $5,900 for each kilowatt that an
array can generate. Most home solar systems included in the study produced
between 2 and 5 kilowatts of electricity. Older PV systems sold at less of
a premium than new systems.
The Sensible Accounting to Value Energy Act of 2013 is sponsored by Sens. Michael Bennet, D-Colo., and Johnny Isakson, R-Ga. The bill has been referred to the Senate Banking Committee and has the support of many real estate industry trade organizations.
These documents, studies and legislation are excellent markers
of the national momentum towards ensuring that the high performance home market
is accurately measured both in terms of the data fields that are available to
buyers, real estate agents, and appraisers, as well as correct valuation of the
green premium. That all of the documents were created or produced in the same
year is clear evidence that 2013 was significant to the high performance home
industry.