NAPA -- The Meritage Resort & Spa on Thursday said it just completed about $8 million in renovations to the 157 original rooms in the hotel.

Combined with a $40 million expansion that was completed in May 2012, the resort now has 322 up-to-date rooms, in addition to the two largest ballrooms in Napa County.

First built in 2007, the 157 rooms in its main building were updated with new, modern design, including new carpeting, bedding, desks, chairs and tables at a cost of nearly $51,000 a room. In addition to revitalizing the rooms and suites, three were converted into Bella Suites with a studio setup designed for brides and bridal parties.

The recent renovations and upgrades were completed in early March. The hotel now has dining options, including Siena Restaurant, The Commons: A Wine Bar plus an adults-only pool with private cabanas, hillside vineyards and Estate Cave with a spa, tasting room and event space.

The upgrades come just 18 months after the resort opened the expansion, which included 165 new rooms, Crush Ultra Lounge, Blend Cafe and additional meeting and event space. All told, an additional 131,300 square feet was added. Meeting space was increased by 12,500 square feet, totaling about 22,000 square feet indoors and another 28,000 square feet outdoors.

The Meritage teamed with two local charities to donate items from its hotel rooms that would otherwise end up in landfills and recycling facilities.

“We were looking for ways to help the community and reduce the amount of building supplies going to local landfills,” said Michael Palmer, general manager of The Meritage, which his owned by Irvine-based Pacific Hospitality Group. “Working with the Solano-Napa Habitat for Humanity chapter and St. John’s to donate items from the 157 rooms we are renovating was a perfect solution for us, the community and the environment.”

Pacific Hospitality Group also purchased the property across the street from the Meritage in late 2012 for yet-to-be determined uses.