Which costs less, the Six Sixty or the Six Sixty Duo?

The Six Sixty is the lower-priced option at $309,000, which includes a permitting budget along with plans, foundation, and delivery, compared to $339,000 for the Six Sixty Duo. Exact permit costs are set by your city or county and confirmed in your feasibility study.

When should I choose the Six Sixty over the Six Sixty Duo?

Choose the Six Sixty if you're housing one tenant, a parent, or an adult child and don't need a second bedroom.

When should I choose the Six Sixty Duo over the Six Sixty?

Choose the Six Sixty Duo if you want to fit small families or roommates into the same footprint and stretch your rental income further.

Same Footprint, One Bed or Two

Six Sixty vs Six Sixty Duo

The Six Sixty and the Six Sixty Duo share the exact same 660 square feet, so the real question is what you want happening inside that footprint. The Six Sixty keeps it simple with one bedroom and one bath for $309,000. The Six Sixty Duo reworks that same space into two bedrooms and one bath for $339,000.

At a Glance

	Six Sixty	Six Sixty Duo
Size	660 sq ft	660 sq ft
Bed / Bath	1 Bed / 1 Bath	2 Bed / 1 Bath
All-Inclusive Price*	$309,000	$339,000
Typical Delivery	5 months	5 months
Footprint Shape	Rectangular	Rectangular
Best For	Rental income, parents, adult children: the all-rounder.	Maximum rental income, small families, roommates.

*Includes a permitting budget, not final permit costs. Permits and property-specific site work (septic, retaining walls, etc.) vary by property and are confirmed in your feasibility study. Every price also includes plans, foundation, the factory build, delivery, utility hookups, appliances, and final inspection.

Where the Six Sixty Wins

Pick the Six Sixty for this.

● One bedroom, one bath, 660 sqft
● $309,000, the lower price point of the two
● Best for a single renter, parent, or adult child

Where the Six Sixty Duo Wins

Pick the Six Sixty Duo for this.

● Two bedrooms, one bath, same 660 sqft
● $339,000, built for maximum rental income
● Best for small families or roommates splitting rent

The Honest Verdict

How to actually decide.

If you're building for rental income, a small family, or roommates, the second bedroom in the Six Sixty Duo is worth the $30,000 difference. If it's a single tenant, a parent, or an adult child moving in, the Six Sixty's simpler one bedroom layout does the job for less.

Choose the Six Sixty if: Choose the Six Sixty if you're housing one tenant, a parent, or an adult child and don't need a second bedroom.
Choose the Six Sixty Duo if: Choose the Six Sixty Duo if you want to fit small families or roommates into the same footprint and stretch your rental income further.

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Still Deciding?

See which one actually fits your lot: the Six Sixty or the Six Sixty Duo.

Every property is different. Tell us your lot size, budget, and what you need the space for, and a real person on our team will tell you which model works, plus your exact price with permitting and site work factored in.

A shortlist of which models actually fit your lot
Honest flags on anything property-specific, like slope or septic
A clear next step, whether that is a factory tour or a feasibility study
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Once you submit, a real person on our team reviews your property and follows up within 1 to 2 business days to book your free 30-minute call. No call center, no drip campaign, just a conversation.

After we review your property, we'll invite you out to the factory, or send a member of our team to you, whichever fits your schedule better.

Building more than one? If you're a real estate developer or investor planning multiple units, let us know in the form. We offer better pricing at volume.

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