rent stabilization, data & you
john krauss

github.com/talos
twitter.com/recessionporn
johnkrauss.com
45% of NYC's apts stabilized

39% are market rate
allows for gradual rent increases
protects
2+ million
New Yorkers
biggest protection against unprecedented rents
law full of loopholes
vacancy bonus

20% more rent if tenant moves out
vacancy bonus

encourages harassment
vacancy decontrol

rent > $2,700
apt goes market-rate
vacancy decontrol

erodes # protected apts
voluntary registration

landlords supposed to register stabilized apts
voluntary registration

no penalty if they forget to
what can we do?
what can we do?

try to protect existing stabilized apts
what can we do?

push for better enforcement around loopholes
what can we do?

organize people who don't know their rights
what can we do?

demand more affordable apts in new construction
but how?
little information published
just an (inaccurate) list of buildings
for just one year
not

the number of apts in each buiding
not

over several years as apts leave stabilization
want to know where apts are leaving stabilization?
good luck!
estimates only published aggregated by borough
but...
every tax bill

says how many stabilized apts (if any) are in the building
every tax bill

is published back to 2007 online
as a pdf
so I scraped them all
taxbills.nyc
massive parsing effort

with help from
@clhenrick,
@aepyornis &
@romeboards
taxbills.nyc/joined.csv
now we have
now we have

the number of stabilized apts in each of every 44,911 stabilized properties across all five boroughs
now we have

how many stabilized apts were lost in each year from 2007 to 2014 for each building
now we have

annual tax abatement data (421a, J51, etc.) for each building
now we can

see loss over time in a single building
146 Fifth Ave (one block from here)
134 East 7 St
now we can

see loss over time in every building
now we can

break down stabilized apt losses however we want
community board
use with caution
data on tax bills not 100% accurate
since landlords don't have to register stabilized apts, we have to estimate sometimes
still good enough to make statements if you're careful
some ideas
automated letters to state Senators & Assemblypeople

what buildings are losing stabilized apts in their district
investigation into buildings

owned by big political contributors
investigation into landlords

whose buildings are fastest losing stabilized apts
early warning system

for buildings whose landlords stop registering
early warning system

for buildings rapidly losing stabilized apts
simple mapping tool

allowing people to compare losses by different geographies
browse the data

blog:
johnkrauss.com/where-is-decontrol
map:
bit.ly/1HxJWc0
get the data

docs:
github.com/talos/nyc-stabilization-unit-counts#data-usage
files:
taxbills.nyc
map the data yourself!

cartodb:
docker4data.cartodb.com/tables/joined/public/table
talk to me after

if you're interested