I believe that house was built by TommyT, the guy who wrote the house building tips pages. It hasn't been uploaded to the Swap Shop as TommyT hasn't been around the forum much lately. My advice would be to check his The Sims 3 Exchange on the official Sims 3 site. Let me see what I can dig up for you.
EDIT: Hit the jackpot! Near the bottom of
page 17 on The Official Building/Remodeling Showboat Thread TommyT posted this house and the link to it on the exchange (I knew I'd seen it somewhere). It's there for the downloading if you want it just please be sure to credit his work.
Welcome to the forum blondienumberone!