Octa Customer Service Number, Toll Free Number, Email Id. Contact Address For Octa. 550 South Main Street, Orange, California 92863, United States. You can visit Octa on the address mentioned above and ask your queries or register your complaints.(Please call before visit Octa)
you'll get a customized quote estimate based on the actual house plan, your location, your finish choices and even sweat equity contributions. 1  Only $29.95 per plan. 2  Order the Cost-to-Build Report and when you do purchase a house plan, $29.95 will be deducted from your order.*.
  The answer depends on the region you will build in and the quality and type of materials used. On average, the cost per square foot to build an average home is $125 per â¦ square foot.   There are some builders, who build what is called formula homes.That is a home that is built on your property, built to specific designs in a small selection of choices and layouts, exclusive of options. The answer depends on the region you will build in and the quality and type of materials used. On average, the cost per square foot to build an average home is $125 per â¦ square foot.   There are some builders, who build what is called formula homes.