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B2 Arch proposes a rental single stair building at ~3 FAR. Lots of 2 and 3 br units. All corner units. Quite dense at ~2.9FSR (vs our 1.6 FSR prototypes)… I’m hearing that ~2.8 fsr is where rental pencils at the moment. Glad to see a project moving ahead. dailyhive.com/vancouver/21...

dailyhive.comThis is Vancouver's first housing proposal under the new single-staircase rules | Daily Hive | UrbanizedThe housing project at 2150 West 16th Ave. is the very first proposal under the City of Vancouver's new single-egress staircase rules.

I don't usually second guess other's design work, without understanding the site and brief in depth, but I am invested in the outcomes for single stair code reform. So, here's a 50'x150' lot with our Five/Six prototype and a lane building. Keeping the same underground parkade. Only 1.7FSR vs 2.9

If you build to the property line for the front massing, but keep a shallow floor plate, then you get to ~2.0FSR. If additional redevelopments are done next door, then you maintain a 20' light well.

If you build to a full 6 floors (a "Six/Six") and put the bikes underground in a parkade, then you can get to ~2.4FSR. This is roughly the rental density allowed in R3, but still less than the 2.9FSR in the original re-zoning proposal. Over time you'd approximate a perimeter block.

Do you have thoughts on political/policy opportunities to address the "blank wall on SFH lot line" problem you discuss here, and reorient zoning codes from units facing out small side yards to wall-to-wall courtyard style?

A couple of ideas: 1) Zero side setback in exchange for reduced lot coverage 2) Zero side setback permissible by agreement of neighbor (permitting payoffs, multi-lot purchasing, and adjacent lot development handshakes) 3) Zero side setback on blocks with high redevelopment/turnover likelihood

Berkeley, California has the same narrow-side-yard, high-FAR arrangement in our zoning code, and if we can get political alignment to change things simultaneous with single stair adoption and before the next big boom, we could pull off the small-lot courtyard block form for a better environment.

Alfred Twu@alfredtwu.com

Housing story time! Recently, Berkeley has rediscovered an apartment building type that’s common in much of the world: the 8-story block on a small lot. Details at link and in thread: alfredtwu.medium.com/the-berkeley... #architecture #housing

Most of the buildings in Berkeley being built with the small side yards are in commercial or mixed use zones that don't have any yard requirements. The yards are being provided so that the units in the middle of the building have windows.