Hi Chris -- open house events in our area can be very successful but I do understand that they may not work in every market.

I have had Open Houses with in excess of 100 groups in attendance.  I attribute this to several factors:  proper planning(online/newspaper/neighborhood info), lots of directional signs plus combinining the open house with the first showings of the property which often creates an initial excitement.   I also extend the hours of the open house from two to five hours depending on the location.

I think it depends on several factors.  First, the weather that day; property location; which date and time you choose.  My best open house was in mid-Scottsdale about 2 summers ago.  Great location, price and condition.  

It was well advertised and an extremely unique high-end property. I had it well staffed and lots of fanfare and showmanship. Their were several dozen that showed up. But I will say it has been years and years.

Chris Mamone about 24 - most of them from Internet marketing. The reason - location and price.

I find that if I don't allow showings before the open house, I get much more traffic!

Around 50 people, have sold my last two homes to open house attendees.

More than 50 - with 13 offers within 2 days.

Marketing. I have someone else cover for me at the open house.

The best turnouts occur when we send out invitations to those identified as buyers interested in the neighborhood, neighbors, and Realtors who sell in the neighborhood. Posting the open house as early as possible in the MLS also ensures that online home buyers will be aware of the open house.  Lorrie Semler, REALTOR® in the Dallas area. Call/text 972-416-3417 hosted an awesome open house in Addison doing all of the above a few weeks ago! It works!

Held a one time SS open house and garage sale, Sat Sun only from 11am -3pm. Over 300 people showed up and received 9 offers. The seller sold over $18k worth of personal items and accepted one of the 9 offers. We had a lot of fun in those two days.

I am suprised how many people come to my open houses in Boise Idaho based on advertising them on Zillow and Trulia.  Those buyers typically are not working with a Realtor yet so they are my target market at open houses.  I recognize that NAR stats indicate only about 5% of homes sell as a result of an open house, but I sold one of my own listings last Friday based on an open house I did.

I had 35 people at one of my Sold in A Week Open Houses. Received several offers too.

Open houses don't work in my market. I've tried them, but it was a waste of my time. 

The most I've had was with 50 groups. (Over 100 individuals)  I wish I could say it was all my marketing and preparation, but the bottom lines is that it was a desirable property that was well priced.

A home in an area of many homes for sale.  12 couples came through and NOT ONE had seen my ad.

Location!

Two turns from major traffic ways.

Lot of signage.

Drum roll please.....1/2 came because of newpaper ad. I was SHOCKED!