Average single family home prices, 2016 Boulder: $1,066,674 Louisville: $627,938 Superior: $615,435 Lafayette: $548,446 Erie: $491,239 Berthoud: $425,018 Mead: $422,818 Longmont: $386,043 Loveland: $356,642 Firestone: $355,042 Frederick: $348,095 Dacono: $265,363 Average attached dwelling prices Boulder: $490,102 Superior: $381,267 Louisville: $370,862 Lafayette: $323,140 Longmont: $299,100 Berthoud: $285,520 Erie: $259,977 Loveland: $256,939 Firestone: $242,180 Dacono: $237,765 Frederick: $195,000 Mead: $128,633 Source: 2016 Longmont Housing Affordability Review

There’s no affordable homes left in Boulder County. Looking to head east to the Carbon Valley? There’s nothing left there, either.

That’s according to a new affordability study out of Longmont, a joint effort of Amy Aschenbrenner, CEO of the Longmont Association of Realtors, and Kyle Snyder of Land Title Guarantee Company.

In the last three years, the number of single family homes for sale under $250,000 has dropped 72 percent, and the number of attached dwellings for less than $150,000 declined by 87 percent.

“Those are gigantic numbers,” Snyder said. “If you have an inventory of something and then you take 87 percent of it away — that’s all of it.”

The report extends past Boulder County and into Weld and Larimer counties, covering Boulder, Longmont, Lafayette, Louisville, Superior, Erie, Loveland, Berthoud, Firestone, Frederick, Mead and Dacono.

Not one of the 12 towns has an average home price under $250,000, the study’s threshold for entry-level affordability. Dacono is the closest, with a $265,363 average cost.

For attached dwellings, only Mead was under the $150,000 threshold, with a $128,633 average — data that came from three sales last year.

“Our conclusion from the information presented here is that there are no entry level housing options,” reads the report. “The lines we drew in the sand as reasonably priced in both categories will soon be obsolete.”

Nationally, the median purchase price for first-time buyers was $170,000 in 2016, according to the National Association of Realtors. (The figure does not distinguish between attached and detached dwellings.)

Affordability has dipped nationwide, NAR found, in the nation as a whole and more than half the states, including Colorado. Across the U.S., median-income households could afford fewer than half the active listings in their respective areas.

In a recently released affordabilty report, NAR Chief Economist Lawrence Yun said, “Home prices have ascended far past wage growth in much of the country in recent years because not enough homeowners are selling and homebuilders have not boosted production enough to meet rising demand.”

Low inventory has been a huge challenge for Boulder County and much of the Front Range, particularly at lower price points.

Only 99 single-family homes sold for less than $250,000 in Boulder County last year, and just 22 attached units went for under $150,000.

Currently, there is one house and two attached dwellings for sale under those prices, all in Boulder.

“The $150,000-or-below condo or townhome is becoming extinct,” concludes the report.

It points out that the 1,000 homes under construction in Longmont might ease inventory concerns in that city, but not affordability.

“(The) starting price of these new homes is at or above the 2016 Longmont average home price of $386,043, so the availability of entry-level homes in the area will not change any time soon.”

There is only one possible fix, Snyder argues: reforming the state’s construction defect law that developers say is preventing them from building condominiums.

“The piece of the puzzle that’s missing is the condos; it’s clear,” he said. “It’s not a guessing game any longer.”

Local legislative workarounds have been pursued, and the Longmont City Council has discussed its own measure. A reform effort was killed just this week in the Colorado House, the Denver Business Journal reported.

Without the addition of lower-priced condos to the local market, Snyder predicts prices will go nowhere but up.

“The bidding wars, the short days on market — I don’t think it’s going to slow down,” he said. “The demand is just too high.”

Aside from the obviously devastating effect to potential buyers in lower income groups, the ever-rising prices could change the way real estate professionals and government entities think about affordability.

“Our measuring stick is about to become obsolete,” Snyder said.

Shay Castle: 303-473-1626, castles@dailycamera.com or twitter.com/shayshinecastle