One Bedroom, Two Sizes
The 405 vs Five Five Five
The 405 and the Five Five Five both give you a genuine one bedroom, one bath ADU, they just answer different questions about how much space you need. The 405 fits a full bedroom into 405 square feet for $239,000, built in about 5 months. The Five Five Five keeps that same one bedroom, one bath layout but stretches it to 555 square feet for $279,000, also built in about 5 months.
At a Glance
| The 405 | Five Five Five | |
|---|---|---|
| Size | 405 sq ft | 555 sq ft |
| Bed / Bath | 1 Bed / 1 Bath | 1 Bed / 1 Bath |
| All-Inclusive Price* | $239,000 | $279,000 |
| Typical Delivery | 5 months | 5 months |
| Footprint Shape | Rectangular | Rectangular |
| Best For | Anyone who wants a real bedroom on a small lot. | Couples, long-term tenants, a guest house with room to breathe. |
*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 The 405 Wins
Pick the The 405 for this.
- ● Smallest one bedroom footprint at 405 square feet
- ● Lowest price of the two at $239,000
- ● Fits the tightest lots without giving up a real bedroom
Where the Five Five Five Wins
Pick the Five Five Five for this.
- ● 150 more square feet of living space at 555 square feet
- ● Same one bedroom, one bath layout with room to breathe
- ● Built for couples and long term tenants who want more than a studio
The Honest Verdict
How to actually decide.
If your lot is tight or price is the deciding factor, the 405 gets you a real bedroom for less. If you want that same layout with more room to spread out, the Five Five Five is worth the extra square footage and cost.
- Choose the The 405 if
- Choose the 405 if your lot is small, your budget is the priority, and you want a real bedroom instead of a studio.
- Choose the Five Five Five if
- Choose the Five Five Five if you want that same one bedroom layout with noticeably more square footage for a couple, a long term tenant, or a guest house that feels spacious.
Compare More
Other model comparisons.
Still Deciding?
See which one actually fits your lot: the The 405 or the Five Five Five.
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
- No pressure, and no obligation
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.
We respect your inbox and your phone. Message and data rates may apply, message frequency varies, reply STOP to opt out or HELP for help. See our Privacy Policy and Terms & Conditions.