The Real Estate Board of New York has replenished an independent expenditure committee that has been spending freely in a closely watched state Senate race in Westchester County.

The group, a consortium of landowners in New York City, transferred $115,000 to Jobs for New York, which has previously polled the race between Democrat Shelley Mayer and Republican Julie Killian.

The committee reported late last month spending $92,836 on consulting fees in the race on Killian’s behalf.

Outside money is pouring into the race for the 37th Senate district, one of two seats that are seen as a linchpin for control of the chamber in an April 24 special election.

Should Democrats win both the Westchester County seat and a Bronx district, they would have a numerical majority in the chamber.

Another group, New Yorkers For Balanced Albany, which has been backed by charter school supporters, has also spent heavily in the race.

On the Democratic side, the Washington-based Democratic Leadership Campaign Committee has transferred $87,000 to the Legislative Majority PAC New York, Board of Elections records show.