looking at floor plate efficiencies of 3 different vertical egress typologies...

left: 6-unit single loaded corridor. 83,5% floor plate efficiency

middle: 12-unit double loaded corridor. 87% floor plate efficiency

right: 6-unit point access block. 93,5% floor plate efficiency
in germany, we did number of proposals and was a bit of time spent optimizing floor plate efficiencies...

basically breaking out verkehrsflaeche (circulation) from the bruttogrundflaeche (BGF - gross floor area) and the technikflaeche (technical area) to get net usable
i'm really interested in the qualitative aspects of these three types.

single and double loaded corridors - massive circulation space. lots of people passing window, using same elevator.

double loaded: no cross vent. no light on multiple sides. hard to get 3 BRs
point access block are kind of the perfect synthesis of all three...

most (or all) units get cross vent. light on multiple sides. if on an arterial, bedrooms can go on quiet half of building. pairs well w/ massive courtyards...

unsure why we don't have these everywhere.
easier to get a wide variety in units (1-3 BR in this example). works for low and mid rise.

hits that sweet spot on missing middle.

allows more area for amenities or larger units...

we should be building these on every single family lot in seattle: archdaily.com/870720/bremer-…
and the compactness is *perfect* for hitting passivhaus.

it's such a no-brainer. there's a reason this is the basic building block of most urban cores outside of north america.

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More from @holz_bau

21 Dec
the horror that is narrow 3-5 story buildings that touch.

(l: boston, r: freiburg)
just gonna leave this here... bhbvt.de/wohnungsbau/pa…
~25' wide 3plex. egads.

baunetz.de/meldungen/Meld…
Read 4 tweets
4 Nov
this is a new one (well, to me...) a colleague mentioned i am fairly critical on twitter... and challenged me to put forth a positive vision.

'if you were developing a baugruppe and not limited by poor zoning or high costs, what would it be'

so... challenge... acccepted?
the form.

it would definitely be a baugruppe... self developed (non-market, normally) urban housing.

is it co-housing? yes/no/maybe?

i wrote about baugruppen for the urbanist years ago

theurbanist.org/category/baugr…
the legal form in WA is a challenge, in part because of funding, and in part because of condo laws.

i think it would be better as a coop, but could be an llc.

more on condo issue here: sightline.org/2019/01/09/mod…
Read 27 tweets
4 Nov
NIMBYs fought this 4 story development on the right for years, and you can barely tell it even exists when biking by it.

hell, the entire street (and several blocks on either side) should be at least this tall

the stroad needs to go tho
btw - this is why we can't meet our climate goals

sprawl. single family zoning. car-centric streets.

the 4 story building?

that's the antidote.
if we really prioritized climate action, walkability, livability, good urban street walls...

the 60' ROW here would have continuous, 60' tall, 6-story buildings lining greenwood (and adjacent blocks) from fremont to shoreline.

just like berlin. seattle pre-zoning did this!
Read 10 tweets
4 Nov
'Our city’s climate goals are not being met — and the reason they aren’t being met is because of *cars*'

-me, over 2 years ago. but still 100% true today

theurbanist.org/2019/06/07/bik…
'Relegating cyclists to greenways off arterials will never result in the rapid uptake of cycling adoption we need to meet our climate goals. It prevents cyclists from getting to their destinations , which are very often on arterials because of our absurdly limiting zoning plan.'
damn, this hasn't aged one bit.

it's just 🔥🔥🔥🔥🔥
Read 4 tweets
3 Nov
a lot of e-cargo bikes were just eliminated. this will make it much harder for families or businesses to ditch cars.

build back better? only if we're building cars, apparently.

what a dumb timeline.
this should have been increased. it should have had same income limits as EVs. it should have included non-electric cargo bikes as well

we have no serious decarbonization goals.
the embodied carbon of one small car is > 50 e-cargo bikes.

an EV has much higher embodied carbon than a car.

just. idiots.

Read 7 tweets
1 Nov
seattle's mayor - who, instead of leading on climate action and sustainable mobility, has killed and delayed bike lanes all over the city for the last 4 years - proclaims, 'These actions shall include... doing more to incentivize modes like biking '

what a joke.
i wonder how many of these articles i can find... hmmm

seattletimes.com/seattle-news/t…
just the other week, SDOT killed bike lanes on 45th.

under durkan's purview.

there are no safe east-west route for people on bicycles on 50th, 45th, and 40th.

theurbanist.org/2021/10/14/sdo…
Read 9 tweets

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