Newton-based REIT HRPT Properties Trust has reported net income available for common shareholders of $30.4 million for the quarter ended March 31, compared to $14.7 million for the same quarter last year.

Net income for the quarter includes an $8.7 million gain on sale of property, and a $7.5 million gain on early extinguishment of debt, the trust said.

As of March 31, 89.5 percent of the trust’s total square feet was leased, compared to 90.4 percent as of Dec. 31, and 91.4 percent as of March 31, 2008.

The trust signed new leases for 190,000 square feet and lease renewals for 755,000 square feet during this quarter, for weighted average rental rates that were 6 percent above prior rents for the same space.