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Question DetailsAsked on 12/12/2016

Build a basement for a new modular home in silver spring Maryland

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Answered 3 years ago by Member Services


You would need plans from an Architect or Civil Engineer to get building permit and for the bidders to bid to and the successful bidder to build to. Your contractor is likely to need to be a General Contractor, because you need not only the basement but also sewer/septic installation, water line, power and phone and cable and other utilities run, and the modular home set onto and anchored to the foundation and all the utilities hooked up. And far better to have a general contractor in charge of all that so if there are connection point errors or foundation dimensional errors they are HIS problem, not your in a big fight between different independent trades with you in the middle.

Modular homes can be as narrow as 8-12 feet or as wide as 24-48 (or more), and commonly from 32-80 feet long, so obviously your basement cost depends on dimensions as well as soil type (for ease of digging) and how deep you need to go with the foundation walls if in deep frost area. Also, is this going to be a finished basement or just a foundation ? Cost can run as low as about $20/SF for simple block wall foundation, typically more in the $30-60/SF range for unfinished basement, or $50-125/SF for simply finished basement depending on degree of finishing, waterproofing needed, and type of interior finishes and services (plumbing, electrical, HVAC, etc) installed down there.

Answered 3 years ago by LCD

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