Peace Now said today that 450 tenders have been issued.
Hagit Ofran of Peace Now accused the Israeli government of "trying to create facts on the ground ahead of the election." A senior Israel government official said the current batch of tenders is actually a group of old unpurchased tenders that are being reissued.
"Contrary to reports there has been no authorization for new construction," the official said anonymously in line with protocol.
The March 17 elections are widely seen as a vote of confidence in Prime Minister Benjamin Netanyahu and his hawkish government.
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Israel captured the West Bank from Jordan in the 1967 Mideast war. The Palestinians are demanding the area as part of their future state along with the Gaza Strip and east Jerusalem.
The international community considers all settlements built in that territory, including those sanctioned by the government, to be illegal.
Some Israelis support withdrawing from territory within a peace framework with the Palestinians. Others oppose pulling out from the territory because of its religious and historic significance and view the areas as their biblical heartland and heritage.
A major Israeli concern is that a territorial withdrawal would pose a serious security risk. Israel withdrew from Gaza in 2005 and the Islamic militant group Hamas later took control of Gaza and escalated attacks on Israel from the territory.