Property Features: HWY 15 Visible 1197 SF exhibition office Excellent freeway access Price/Term: $1,420/month, NNN $120/month Currently, the space is used home improvement exhibition. More than $10,000 exhibition items has been installed, these items can be included or excluded. The Simpson Business Park is one of North San Diego County’s most strategically located Business Parks lying just a few blocks from the Interstate 15 & Highway 78 Interchange. The Simpson Business Park features a 55,972 square foot four (4) building business park. The properties unique location gives tenants the ability to efficiently service clients throughout San Diego and Southern Riverside markets.