Backyard BI(h)OME


Backyard BI(h)OME

cityLAB + Kevin Daly Architects

An ultra-modern, lightweight accessory dwelling unit - inspired by greenhouses to accommodate habitats for a range of diverse species

Built Prototype Only


1 resident / 1 bedroom

$30,000 / resident

Medium Term (1-10 years)

17 days offsite2 days onsite

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Concept Owner / Company: cityLAB with Kevin Daly Architects; photo: Photekt
Contact: via website only

Developed as a prototype of cityLAB’s Backyard Homes study, the Backyard BIHOME is an ultra-modern, lightweight accessory dwelling unit that has the potential to meet the current demand for 100,000 additional housing units in Los Angeles while also providing habitats for diverse species.

  • Quoted Total Cost: $30,000
  • Planned Occupancy (1 person/bed): 1 bed
  • Estimated Cost Per Bed: $30,000
  • Quote’s Total Interior Square Footage: 119 sqft
  • Quote Includes # Units: 1 units
  • Used for Shelter Before: Not used as shelter yet
  • Readiness: Prototype
  • In Stock / Ready to Ship Today: No
  • Manufacturer Identified and Available: N/A
  • Setup Speed: 19 days
  • Setup Difficulty: Moderate (prefab assembly)
  • % Built Onsite: 50% – Some Prefab Parts Assembled On-Site/Flat Pack
  • Portability: Portable (after major disassembly)
  • Intended Use of Shelter: Medium Term (1-10 years)


Used for shelter before?No
Manufacturer identified?No
If so, list examples
Prior use comments
Building experience comments
Intended use casesThe BIHOME is flexibly designed to meet the needs of almost any household (housing for an elderly parent, a returning college graduate, a rental unit, etc.) while maintaining the benefits of of easy maintenance and affordability. The environmental impact of the structure over its entire life cycle is between ten and a hundred times less than a conventional auxiliary dwelling.
R-value (insulation)
Risk Category
Roof Load (PSF)35
Indoor Clearance Height (ft)12
Professional Engineer Stamp?
Conforms to ICC’s Temporary Structure and Uses Code
Other Structural / Safety Comments
Sustainability / Green Building Certifications?
Materials Used / Made of:
Disassembly / Assembly Comments:
Ideal Mounting SurfacesSoil (Dirt/Grass), Asphalt / Parking Lot
Anchoring Process



ItemCost ($)Notes
Budget Total$0
Total Per Bed$0
Total Per Unit$0
Add-on Items
Check all items that are not included in your quote (i.e. would need to be quoted by outside party)Flooring, Foundation work, Lighting, Electrical distribution, HVAC, Toilet / Washrooms, Basic Kitchen, Delivery Charge
List outside vendors needed to execute (including any architects and engineers)
Possible Delivery Method(s)Airdrop, Regular-sized trailer


Design (days)0
Production (days)14
Site Prep + Set Up (days)3
Total (days)19
Amount in Inventory (#)n/a
Production Capacityn/a
Production LocationPrototype in Los Angeles, CA