Quartz 4

Nested Amenities Model

3 min read

Nested Amenities Model

What It Is

A design framework for shared amenities that scales with community size, ensuring both intimacy at the cluster level and richness at the community level. Rather than one central amenity building serving everyone, amenities are distributed across four tiers — creating natural sub-communities while avoiding siloing.

The Four-Tier Structure

Designed for a community of 96 units across 8 clusters of 12:

TierServesExample Amenities
Cluster (12 units)~12 householdsShared kitchen, outdoor gathering space
Pair (24 units)~24 householdsGuest cottage, laundry
Quad (48 units)~48 householdsCo-working space, library annex, or maker space/tool library
Community (96 units)All residentsCentral park/court, car share, large event space

Quad Specialization

The two quads are intentionally differentiated rather than identical:

Quad A — Knowledge/quiet work oriented

  • Co-working space
  • Library annex / reading room
  • Quieter programming

Quad B — Making/hands-on oriented

  • Maker space
  • Tool library
  • Workshop

Cross-access is open to all residents. A Quad B resident walks 2-3 minutes to use the Quad A library; a Quad A resident borrows the table saw from Quad B. This creates natural cross-community movement rather than isolated sub-villages.

Why This Structure Works

Solves the governance scaling problem — Consensus decision-making breaks down above ~50 adults. Each cluster of 12 and each quad of ~48 households stays within manageable governance size. Most decisions happen at the cluster level; only community-wide issues go to the full cooperative.

Builds relational accountability at the right scale — Cluster-level shared kitchens and outdoor spaces create the daily casual contact that builds genuine relationship. You know your 11 neighbors. The larger tiers are for resources, not intimacy.

Prevents the amenity desert problem — Cohousing communities that put all amenities in one central building often see them underused because they feel “far away” from daily life. Cluster-level amenities are always close.

Creates identity without mandating it — Quad identities (the makers vs. the readers) will emerge organically. The design acknowledges this rather than fighting it, while ensuring no quad is self-sufficient enough to truly separate.

Car Share as Infrastructure

Perimeter parking plus community car share reduces per-resident car ownership costs, frees interior land for green space and courts, and creates another shared resource that builds community incidentally (scheduling, coordination, mutual accommodation).

Physical Layout

  • 8 clusters arranged in 2 quads of 4 clusters each
  • Parking consolidated at perimeter
  • Central court/park at community level
  • Cluster courts as semi-private outdoor gathering space
  • Guest cottages: 1 per pair of clusters (4 total)

Graph View

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