CONCRETE BASE CONSTRUCTION PRICES

(typically equal to wood framing in typical construction)

 

These published construction costs are only estimates based on general conditions. California construction costs are more than places like Georgia. After we understand your building site including location, excavation, electrical hookups, septic, water on site, etc. and develop you construction and permitting we can then provide more precise costs for you specific custom project.  We can specify how to accomplish what you need to when building in your area and help coordinate with your local construction support.  

 

Flat, slopes and domed ceilings are options. When using the dome ceilings the basic concrete square rooms with domed ceilings are arranged in a variety of configurations customized to your plan. These interior sizes are 24'x24' and 28'x28' requiring no structural columns within the space. Flat Ceilings, also an option, come in a variety of sized and heights. Many building types and sizes are available. Tell us what you seek and we can explain choices and costs.

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Because the choices are so varied for insulation, waterproofing, drainage and back fill these prices are not included on this published list. After your plan is completed and material choices are selected these costs are estimated and added to your cost. Often local tradesmen complete these parts of the work with our guidance or you can DIY.

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Once your custom plans are complete and your site is surveyed you can receive an itemized list of your costs. Our design, engineering and planning services are offered at a rate of $80 hourly. We will also coordinate with your personal architect if preferred. We can assist with getting your permits, design reviews, and financing submittals as required. 

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Average Basic Shell Square Foot Price is  $95 - $150 depending on your location and local concrete and steel. Completed construction costs typically are the same as new wood construction in your area. Interior Finishes Average  $100 - $200+ and are typically provided by your local installers and contractors (depends on your finish and site choices. DIY and Owner/Builder arrangements can save more.)

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Concrete Dome Shell:    

24'x24' interior, (630 SF with exterior walls)   

28'x28' interior, (850 SF with exterior walls)

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Custom units with materials, labor traveling and crew expense start at $95- $150 PSF

(This varies because materials costs and site locations vary by state and accessibility)

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• POURED Concrete Shell cost (walls & roof) average $95 to $150 per square foot depending on location & local steel & concrete costs.          

• 26' dome averages $57,800 - 30' dome averages $67,500

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• Footings - $5000 - $20,800 per unit- depends on soil conditions & footing depth requirements

• Frost Footings not included unless arranged in advance and priced separately

• Overhangs  - $4000 to $37,900 based on size

• Parapet Walls - $30 SF averages $3000- $15,000

• Smoothing concrete interior with plaster is priced separately.

• Custom Sizes priced separately

• Wall Height Extensions - 20" -  $7000  &  36" -  $9900 + Custom Taller sizes 3 to 8 ft increments

• Skylights - many sizes, range: $3000 to $38,000

• Blocked out Door & Window Openings $180 to $880 e.

• Retaining Walls:  $30- $40 PSF

• Electrical & Utility Blockouts: $50- $200 e.

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Waterproofing Costs ranges from $4 to $10 SF and are estimated once your custom plan and your material choice selections are complete. Includes a waterproof membrane cover + can include additional concrete additives for extra protection for additional fees. Your cost choices are explained once your plan is completed.

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Travel Expenses when using concrete forms is $10 per mile from KC, Missouri.  Depends on how much equipment and crew size and materials are required for you specific project. Extra Charge $9500 for domed roof buildings under 1000 sf due to crew & delivery costs and additional costs apply when building over 8 ft walls and two story structures.

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Exterior insulation, stucco or other exterior finish, plumbing, electrical, HVAC, window/door/skylights, interior plaster or drywall, exterior finishes, etc. are provided by local installers and not included in our scope of work. When your custom plans are complete these costs are estimated.

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NOTE: All published prices are for preliminary cost estimates only. Actual estimates for your custom project are provided when your custom plans are completed.

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* All published prices are based on $100 per yard concrete cost, $650 per ton on steel and $80 hourly for pump truck fees. In some locations these costs are more. When local costs exceed these amounts, it is the responsibility of the owner building their project to pay for these additional costs.

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Any deviations in basic module and additions during construction are priced separately at a labor rate of $65 per hour. Prices are based on Steel Rebar prices at $650 per ton. Additional costs may apply.

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*Typically a 30% deposit of the proposed total basic concrete construction holds your place on our traveling crews construction list with a scheduled construction date and is applied to the final pours of your project. Full payment for each poured section is due within 3 days of completion or as defined by contractural agreed terms prior to construction.

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Usually it takes two weeks to set up and pour each 600 to 1000 square foot of space including all exterior walls with dome and/or flat ceilings, roof and all door and window openings and electrical and plumbing conduit. This is typically faster than traditional framing systems.Then we consult as needed as your local contractor finishes your project to your plan and permitting specifications.

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NOTE: Most custom projects vary on costs depending on how they are finished, location, site conditions and local codes, so we only provide specific estimates and arrangements after your custom plans are completed. SO, Get started!  IT USUALLY TAKES 6 MONTHS OR MORE TO PLAN, ENGINEER & PERMIT A PROJECT due to the often long waits for permit processing.

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