vallastaden is a new green, mixed use urban development in the swedish city of linkoping, that was developed as an urban living expo - w/ diverse housing types and ownership models

sure wish we could do things like this.

medium.com/housing-innova…
swedish video w/ english subtitles on the district here

player.vimeo.com/external/27844…
the project incorporates a massive utility culvert, sim to the one i was discussing w/ @AGH4SEA a few weeks ago.

video here: vimeo.com/140904923
the planning competition was won by okidoki arkitekter

the competition was designed to answer the following question:

'What does sustainable community building look like in the future?'

okidokiarkitekter.se/vallastaden/
the land issue here becomes similar to tuebingen and other places wrt baugruppen.

hold the price of land constant, make developers compete on quality, energy performance, affordability, social mix, etc.

surely US cities can be this innovative...
sweden already has higher energy efficiency standards than the US, but they were able to utilize this approach to incentivize plus houses energy (e.g. passivhaus + enough PV to offset consumption), mass timber/wood construction, and broad economic and social mix.

would be nice
scoring for land parcels also included a wild card - for small and/or new architects working on it.

this sure beats RFPs by a mile.
similar concept to a program i was discussing w/ a spanish planner a few months ago for similar development. the city holds last lot on a block in reserve as a 'joker's wild'.

if not enough social housing? develop as social housing.
not enough open space? a square.
etc etc
you can see the diversity of housing here: vallastaden2017.se/upptack/byggna…

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More from @holz_bau

17 Mar
i've been thinking a lot about CLT floors of late.

i've always struggled a bit with how we do it here - thin floor plates w/ CLT panels, and it hit me in a discussion w. hundegger's wolfgang piatke - the US puts CLT in floors, the EU puts CLT in walls
and it's not just that we put CLT in floors - we also do it wrong.

in the US, nearly everyone is trying to do the thinnest floor plate they can w/ CLT. they do this by adding a layer of acoustic insulation and a concrete or gypcrete topping.

this sets up a couple of issues
1. the approach is not the best from an acoustic standpoint. yes, it can meet the bare minimum of the code, but performance isn't ideal.

2. it's not circular (and again, concrete...)

3. it's not service/infra friendly

4. it's not flexible/futureproofed Image
Read 17 tweets
16 Mar
austrian architects > american architects

prove me wrong

nextroom.at/building.php?i…
prove me wrong

i could do this all day

archdaily.com/504748/kinderg…
Read 11 tweets
15 Mar
we're beyond point of 4plexes in single family zones as a means towards affordable housing.

that juncture was in late 70s, when city looked at legalizing missing middle affordable housing in seattle's vast single family zoned landscape. homeowners got that killed. or 90s UV plan Image
per zillow, median single family home value in seattle today exceeds $950k, is expected to increase substantially over the next year.

this means the land costs *alone* for a 4plex will be almost $250k.

seattle's abhorrent land policies have only exacerbated the housing crisis Image
if we take a very aggressive soft + hard cost (minus land) of $350/sf for a 1,000 sf unit, then we're at $600k per unit.

this is unaffordable for those under 100% AMI without a very sizeable down payment. especially if the city refuses to adjust occupancy limits
Read 9 tweets
25 Feb
if you asked me a year ago what the perfect urban building was, i would have said something like praeger richter's 5 story + DG baugruppe-ausbauhaus in neukoelln (berlin)

praegerrichter.de/AUSBAUHAUS-NEU…
project stats:

24 units
15,060 sf site
floor area is 38,740 sf (FAR of 2.6)
3m ceilings - nearly 10' - unheard of in much of seattle
each unit has a south-facing balcony or terrace
the front features a playground, and bike parking
shared garden at rear

media2.heinze.de/m1/85/12643085…
the ausbauhaus (starter house, or unfinished house) is planned for a base price per m2 that the owner can buy.

from there are a multitude of options:
owner can fit out themselves
owner can have arch do basic fittings
owner can have arch do luxe fit out

payload.cargocollective.com/1/5/165174/683…
Read 10 tweets
25 Feb
our land use is largely predicated on the notion that residents stay in the same place for years - but the reality is that there is fairly constant turnover - even for homeowners. here's wallingford, in just the last 24 months.
on just these 13 single family zoned blocks, 36 households of have moved in 36 months

there are only about 180 homes on these blocks. that's 20% of the neighborhood that has changed, in just 3 years.

change is constant. but in these zones, only wealthier people can move in
even in broadmoor
Read 6 tweets
25 Feb
anti-tenant bigotry really is gross.
TIL 4-story buildings are 'unhealthy'
had the city abolished single family zoning decades ago, this nonsense wouldn't be an issue.
Read 23 tweets

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