Sales of newly built, single-family homes rose 16.6% in April from an upwardly revised March reading to a seasonally adjusted annual rate of 619,000 units, according to newly released data by the U.S. Department of Housing and Urban Development and the U.S. Census Bureau. This is the highest sales pace since January 2008.

“Builders remain optimistic about the housing market, and this month’s jump in new home sales is a positive sign that growing demand will keep the housing sector on an upward trajectory through the spring buying season,” said National Association of Home Builders Chairman Ed Brady.

“Rising home sales combined with tight inventory will translate into increased housing production as we move onward in 2016, especially as job creation continues and mortgage rates remain low,” said National Association of Home Builders Chief Economist Robert Dietz.

The inventory of new homes for sale was 243,000 in April, which is a 4.7-month supply at the current sales pace. The median sales price of new houses sold in April was $321,100.

Regionally, new home sales rose by 52.8% in the Northeast, 18.8% in the West and 15.8% in the South. Sales fell by 4.8% in the Midwest.

See National Association of Home Builders’ historical new home sales data and read Dietz’s Eye on Housing blog post for further details.