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Build Your Own House - Cost Estimating
Summary: How much does it cost to build a house? Professional builders know the current cost to build a new home is $79 to $110 per sq ft, or more, depending on home design and quality.
These costs per square foot do not include the cost of land or home builder profit. The cost of land or building site varies tremendously depending mainly on location.
For home builders, the ideal breakdown of the selling price or market value of a new home is as follows:
25% material, 25% labor, 25% land cost, 12.5% builder profit, and 12.5% builder overhead.
All builders must constantly balance the material, labor, land, and overhead costs when estimating the costs of building a new home. This is what construction cost estimating is all about.
So, if you want an expensive roof, or special doors or windows, or other expensive building materials, or your contractor bids are high, you have to compromise and spend less on other building categories in order to stay within your home building budget.
All this compromising and cost balancing is done in the planning stage of construction.
On my Getting Started page you'll find excellent, easy to use, and FREE cost estimating software called Cost to Build Calculator, that utilizes the latest in construction estimating software. The software allows you to vary the design,quality, size, and zip code of any house plan to get an approximate cost to build estimate.
For more accurate cost estimating read my Cost Estimating Explained page. It discusses the entire process of cost estimating, as well as using a spreadsheet to control costs.
-If you are your own General Contractor, you’re in charge!
-Try to keep costs as low as you can.-Use a spreadsheet to track category costs!
-To make this job easier, use a properly formatted spreadsheet. Being properly formatted makes the job easier. There are free formatted spreadsheets on my spreadsheet page.
Cost Estimating is the #1 job for a General Contractor. Nothing else comes close.
You will discover as you explore the Cost to Build Calculator that the difference in cost per square foot is due to many variables, including different types of foundations, roof pitches, quality of building materials, home design, design and number of windows, and so on.
Below are four examples of how the cost per square foot can vary by as much as $30 as these variables come into play.
2,000 sq. ft., simple design = $80 per sq ft = $160,000. Built on a $80,000 lot. With an appraisal of $320,000, if you decide to be your own general contractor, you might save $80,000 or more (12.5% builder profit, and 12.5% builder overhead).
2,200 sq ft steeper roof, 3 car garage, stone trim, etc. = $90 per sq ft = $198,000. Built on a $100,000 lot. Appraisal of $398,000 = you might save $99,000 or more.
2,400 sq ft, more glass, porch, hip roof, etc = $100 per sq ft = $240,000. Built on a $120,000 lot. Appraisal of $480,000 = you might save $120,000 or more.
2,600 sq ft, more complex design & costs = $110 per sq ft = $286,000. Built on a $143,000 lot. Appraisal of $572,000 = you might save $143,000 or more.
The National Association of Home Builders in their recent report shows the current average cost to build a house is $79.67 per sq. ft., excluding land, builder profit and overhead, financing costs, and marketing and sales costs.
The term cost per square foot or average cost per square foot for a new house needs to be used wisely. I use it as a target figure to control my home building budget, as most builders do. For more on this subject, read my Home Construction Costs.
Good luck, Carl Heldmann