The construction cost data used in Houseplans Cost to Build Reports is compiled from real world market information supplied by industry professionals with resulting data currently produced for over 430 geographic and economic markets throughout the USA and Canada. Construction cost estimating industry leader Xactware compiles and provides this data using a team of construction analysts with over 175 years of combined experience in the construction industry. Additional information regarding the calculated construction costs is listed below:
Calculated costs include factors for all materials, labor, and equipment needed to construct the home according to national building codes plus any known adjustments required for seismic, wind, frost and snow-load conditions. Cost for permit fees, general contractor overhead and profit, and any applicable sales tax for your area are also factored into the total.
Costs are reflective of building the home on a relatively flat or gently sloping lot. Additional costs will need to be added to account for lots which slope greater than 15 degrees.
Certain assumptions are made of the quality and quantity of specific building materials found to be common for the type, style and size of the plan chosen. Custom additions or changes may not be reflected in this value if they fall outside of the standard practices for this type of construction.
Costs are based upon finishes and features outlined in the plan you have chosen, and the actual building of the home may increase or decrease these costs. We recommend a contingency amount of 10-15% be added to address these possibilities.
Our numbers are not based on national averages, and our reports are not "canned". Each estimate is made to order for the house plan, construction quality and postal code you choose.