Editor's note: "What's the Big Deal?" runs Sundays and is based on the most expensive property transaction recorded in Pitkin County each week through Thursday.

Three eight-figure property deals have closed since Oct. 2, starting with developer Mark Hunt's $18 million purchase of the Red Onion building on Aspen's Cooper Avenue pedestrian mall.

Here's a snapshot of that deal:

Price: $18 million

Address: 414-422 Cooper Ave.

Buyer: 414-422 East Cooper Avenue LLC, controlled by Mark Hunt

Seller: Red Onion Investors LLC, NH Onion Ventures LLC, AVH Onion Ventures II LLC, RG Onion Ventures II LLC, AP RT 29 LLC, NH 420 Cooper LLC, AH 420 Cooper LLC

Property type: Multiuse

Year built: 1890

Total heated area: 15,774 square feet

2014 property tax bill: $127,614.88

Last week's two other eight-figure deals involved single-family homes.

Here's a glance at the transactions:

Price: $16 million

Address: 830 Roaring Fork Road

Buyer: Hallam Sanctuary LLC, formed in August

Seller: Zilkha Selim K Trust, Los Angeles

Property type: Single-family

Year built: 1987

Total heated area: 7,227 square feet

Land size: 44,792 square feet

2014 property tax bill: $20,877.20

Worth noting: The trust that sold the home is in the name of Zilkha Selim, who is the founder of Mothercare, a large retail chain in the United Kingdom. The six-bedroom, seven-bath home overlooks the Hallam Lake Nature Preserve. It most recently was listed for $16.995 million.

Price: $12.5 million

Address: 89 Pitkin Way

Buyer: Roadsend LLC

Seller: Chela Blitt Trust, Kansas City, Missouri

Property type: Single-family

Year built: 1987

Total heated area: 4,019 square feet

Land size: 0.75 acres

2014 property tax bill: $19,267.76

Worth noting: The trust that sold the property is named after Chela Blitt, a social activist whose mother, Rita, was honored by the Red Brick Center for the Arts in July 2012. The LLC that bought the home formed Sept. 29 in Colorado.

Buzzworthy

Through 2 p.m. Friday, October's total sales volume in Pitkin County was nearly $85 million, according to the Pitkin County Clerk and Recorder's Office. October 2014 registered $149.5 million in total real estate sales. The strongest October since 2010 rang up $194 million.

rcarroll@aspentimes.com