CoBuy Suitability Score™

The CoBuy Suitability Score™ is a 0-to-100 grade for how well a specific home can host co-ownership. Built from a home's verified capabilities across 11 dimensions, it resolves into a letter grade from A to F, so a buyer can tell at a glance whether a house is actually built for two friends, a couple plus one, several adults, or two households sharing one address.

See the grade scale and the twelve questions behind it on the CoBuy Suitability Score page.

How the grade works

The score spans five tiers that have been in use since 2018: A is 90 and above (Highly Suitable), B is 80 to 89 (Suitable), C is 70 to 79 (Satisfactory), D is 60 to 69 (Unsuitable as-is), and F is below 60. The eleven dimensions cover privacy, relative proportions, spatial distribution, accessibility, layout, kitchen and laundry, separate entrance or ADU, storage, amenities, parking, and legal or occupancy limits.

Why verification matters

A capability counts only if it can be verified. If it cannot, it counts as absent, so a listing's marketing can never inflate a score. A home's starting grade, built on public listing data alone, is always a floor and never a ceiling; when an owner or a CoBuy-certified™ Pro verifies the answers, the score can only rise. That is consumer protection: a listing's own copy never grades itself.

Why it matters for co-owners

Most American homes were designed for a single household, so most flunk. The interesting part is finding the ones that do not. A home scored and featured under the Score becomes a CoBuy-Suitable™ home. For anyone weighing a specific property, the Score turns a vague question, can we really live here together, into a concrete, comparable grade.

Key Points

• A 0-to-100 grade for how well a specific home can host co-ownership
• Scored across 11 dimensions and graded A to F across five tiers in use since 2018
• Only verified capabilities count; unverified ones count as absent, so listing copy cannot inflate a score
• A public-data score is a floor; owner or CoBuy-certified Pro verification can only raise it
• Homes scored and featured under it become CoBuy-Suitable homes