An additional two building lots at the Alder Top Village Keishangita.’aan subdivision are listed on an online auction site, with plans to add four more parcels before winter.

That will bring the total number of building lots to 26, as the borough is looking to add to an earlier successful auction of 20 parcels this past winter and spring in the largest sale of municipally owned land for residential development.

One change for bidders on the two lots currently listed at publicsurplus.com is that the winners will have five years to complete construction on their lot. The assembly voted Aug. 25 to add the new condition to the land sale.

The first 20 lots did not include any deadline for construction.

The subdivision, just north of Shoemaker Bay, is zoned single-family residential.

“We feel five years time to build is a prudent approach,” Borough Manager Mason Villarma told the assembly. In hindsight, he said, maybe the assembly should have considered imposing a time limit for construction in the first round of 20 lots.

“People can sit on these for 20 years if they wanted to,” he said, adding that it’s in the public’s best interest to see the land developed for new housing in a timely manner.

As of Sept. 2, two building permits had been granted for the subdivision, said Amber Al-Haddad, the borough’s capital projects director.

The other change from the first auction round is the bid deposit: The assembly raised it from $500 to $1,000.

A winning bidder who decides not to complete the purchase would lose the $1,000.

Villarma told assembly members that the $500 was too low, enabling some bidders to take advantage “and play the game,” going for multiple lots and then choosing which one they liked best among the winners, forfeiting only $500 for the ones they declined.

Losing bidders get back their deposit.

The auction on the latest two lots put up for sale closes Oct. 25.

The two parcels had been held back for donation to WCA to develop as a memorial park, dedicated to the students who attended the Wrangell Institute federal boarding school at the site from 1932-1975. But the assembly last week opted to put up for sale the two small lots — each less than half an acre — and instead donate to the tribal council a 2.7-acre parcel on Institute Creek to allow for a much larger memorial park.

The two lots, at the northern end of the subdivision, are listed at a minimum bid of $68,428 for the parcel fronting Zimovia Highway and $60,445 for the lot one row back.

There is street access and buried utilities to both parcels.

The average selling price for the first 20 lots, averaging about a half-acre, was $67,400, with several selling for over the minimum bid.

The borough plans to list four more lots for sale, probably sometime in October, after a survey and final plat, said Kate Thomas, economic development director. Bidders would have a couple of months in that auction.

Those four lots are in the row directly behind the initial 20 parcels, with access to the streets and buried utilities that were put in for the first round of sales.

The borough spent more than $4.2 million to clear and level the land, install utilities and build streets, raising about $1.35 million from the sale of the first 20 lots.

The intent of the subdivision was not to make a profit but rather to make more land available for residential development.

The subdivision was carved out from the more than 130 acres the federal government gave to the borough in 1996, 20 years after the boarding school closed down.