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  • From point of purchase, our ADU kits can be permitted & completed in as little as 6 months.

  • A substantial improvement over traditional construction methods, ensuring you enjoy your new living space sooner. 


  • ADU kits include stamped plans for permitting.

  • Recycled steel frame assembly 2-4 days.

  • Eco materials list, specs & vendor contacts.

  • We handle your building permit with your municipality.



  • Fire resistant.

  • Water resistant.

  • Pest resistant.

  • Mold resistant.

  • Seismic 4 rating.


We recommend:

  • Non-toxic MGO Panels.

  • Hemp insulation.

  • Zero VOC paints & finishes.

  • Screened windows for fresh air cross ventilation.

  • Sustainable and environmentally friendly home furnishings


​Current pricing through 03/30/24

Price includes the following: steel frame package, stamped full plan sets, building permit coordination, submission, and a sustainable materials list with vendor contacts.

  • 682 sf - STUDIO ($48,950)

  • 990 sf - ONE BEDROOM ($52,000)

  • 1176 sf - TWO BEDROOM ($58,000)

​CA build average price per sqft

  • $500 + per sqft - Traditional

  • $400 + per sqft - Modular

  • From $250 per sqft once completed * - Necessary Home

* Necessary Homes' estimated completed price is for the house and foundation only.  It does not include site work, permit fees, or utility connection fees.  The completed price includes shipping, installation, solar, fire sprinklers, a metal roof, mini-splits, kitchen and baths, and a general contractor's fee. Site preparation, permit fees, and utility fees vary depending on the site. 


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