The North East Independent School District may take a $250 million to $350 million general obligation bond request to voters in May 2011.
Superintendent Richard Middleton said district needs include a new middle school to alleviate overcrowding at existing facilities.
NEISD is the second-largest school district in San Antonio, with an enrollment of 66,000 students.
Voters approved a $498 million bond package in 2007.
Projects financed by those bonds included four new elementary schools, the replacement of 100 portable classrooms, and upgrades at 25 schools.
The district’s $1.2 billion of GO debt is rated Aa1 by Moody’s Investors Service and AA-minus by Standard & Poor’s.
The debt is enhanced to triple-A with coverage by the state’s Permanent School Fund.