Results of a June survey of homebuilders reflect growing confidence in the market for single-family homes.

An index that measures the sentiments of homebuilders toward the single-family housing market has reached its highest level in more than eight months.

The National Association of Home Builders/Wells Fargo Housing Market Index rose five points to a level of 59, the NAHB said in a news release.

The survey was completed in June.

Not since September 2014 has the index been at that particular juncture. The association has been calculating the HMI from monthly surveys for 30 years.

In each survey, homebuilders are asked to gauge current single-family home sales, and what they perceive as their sales expectations and "traffic" of buyers over the next six months. Scores for each component are used to come up with a seasonally adjusted HMI, and any number over 50 shows more builders view conditions as good than poor.

The most recent HMI survey shows builders are seeing more serious and committed buyers at their respective job sites, according to the NAHB.

All three individual HMI components posted gains in June. Current sales jumped seven points to 65; sales expectations went up six points to 69; and buyer traffic remains under 50 but rose five points to 44.