Mark Sheridan Math & Science Academy has recently expanded its facilities with a new 9,000-square-foot annex with a gymnasium and STEM classroom. The annex was opened at the beginning of the 2018 academic year. In addition to the annex, PBC (Public Building Commission) also carried out various other upgrades at Sheridan, such as installing a new elevator, improvements to the parking lot, landscaping, ornamental fencing, and a new turf play area.