ARKITDESIGNS journal

Multi-unit planning

Small Multi-Unit Residential Design: Turning Density Into a Coherent Plan

A design-first approach to duplexes, triplexes, and small residential infill in San Diego.

Residential infill · 7 min read

Small multi-unit residential design is an exercise in relationships: between homes, circulation, site conditions, services, and the technical requirements that shape a durable proposal. The plan works best when these questions are addressed together.

01

Unit count is only one part of the problem

A strong multi-unit concept must also resolve access, circulation, privacy, daylight, service areas, site response, and the lived quality of each home. These relationships should be tested before a plan is treated as final.

02

Coordinate technical requirements early

Residential multi-unit projects often involve decisions about code, utilities, energy, accessibility, fire, and consultant coordination. Identifying those touchpoints early helps the team develop a more useful documentation strategy.

03

Use drawings to make decisions visible

Clear drawings allow owners, consultants, reviewers, and builders to discuss the same proposal. That shared record supports better pricing, review, and construction coordination.

Informational only. Requirements and review procedures can change and should be verified for the specific property. City of San Diego permits and approvals resources

Start with a clearer brief.

Share your address, early questions, and any project documents.

Request a consultation