Sam Alcorn's Avatar

Sam Alcorn

@samalcorn.bsky.social

Housing abundance. Urbanism. Zoning abolitionist. Accessibility Compliance expert. YIMBY. Located in Tovaangar. #OverturnEuclid

978 Followers  |  1,089 Following  |  1,313 Posts  |  Joined: 04.08.2023  |  2.1575

Latest posts by samalcorn.bsky.social on Bluesky

Fascinating read: www.researchgate.net/profile/Andr...

01.08.2025 00:33 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Listening to it for the many-ith time right right now. So many memories and emotions attached to it for me. Like a comfy old sweater. Every note is familiar.

31.07.2025 20:39 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Cover art of album New Forms by Roni Size & Reprazent (1997)

Cover art of album New Forms by Roni Size & Reprazent (1997)

Perfect album that came out when I was 16:

31.07.2025 20:18 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Fantastic.

31.07.2025 03:51 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

I was just about to post about this episode. @volts.wtf is always a good listen, but this episode with @alonlevy.bsky.social is _especially_ good.

31.07.2025 03:42 β€” πŸ‘ 34    πŸ” 5    πŸ’¬ 1    πŸ“Œ 0

My kid is a huge fan of those. Me too.

30.07.2025 20:20 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Is that the 1930 zoning ordinance?

30.07.2025 17:34 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

One of the nice things about the statewide small-lot subdivision law (amended by SB 1123) is that, while it explicitly allows municipalities to adopt local ordinances about it, if they go beyond the state requirements, it doesn’t require local implementation.

30.07.2025 17:30 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
From the first part of LA’s 1946 zoning ordinance:

Sec. 12.04β€”Zones
of this Article
"A1"
"A2"
"RA"
"R1"
"R2"
"R3"
"R4"
"RS"
"C1"
"C2"
"C3"
"C4'
"CM"
"M!"
"M2"
"M3"
Agricultural Zone 
Agricultural Zone
Suburban Zone
One-family Zone
Two-family Zone
Multiple Dwelling Zone
Multiple Dwelling Zone
Multiple Dwelling Zone
Limited Commercial Zone
Commercial Zone
Commercial Zone
Commercial Zone
Business Zone
Limited Industrial Zone
Light Industrial Zone
Heavy Industrial Zone
ZONING ORDINANCE No. 90,500
The Zones aforesaid and the boundaries of such Zones are shown
ipon a map attached hereto designated as
"Zoning
references
the
a part of this
Article, being
and other
part of this
Article
is if the matters and information
set forth by
said map were all
ully described herein
For
Oil Drilling Districts and Regulations, see Article 3, Chapter
!, Los Angeles Municipal Code.

From the first part of LA’s 1946 zoning ordinance: Sec. 12.04β€”Zones of this Article "A1" "A2" "RA" "R1" "R2" "R3" "R4" "RS" "C1" "C2" "C3" "C4' "CM" "M!" "M2" "M3" Agricultural Zone Agricultural Zone Suburban Zone One-family Zone Two-family Zone Multiple Dwelling Zone Multiple Dwelling Zone Multiple Dwelling Zone Limited Commercial Zone Commercial Zone Commercial Zone Commercial Zone Business Zone Limited Industrial Zone Light Industrial Zone Heavy Industrial Zone ZONING ORDINANCE No. 90,500 The Zones aforesaid and the boundaries of such Zones are shown ipon a map attached hereto designated as "Zoning references the a part of this Article, being and other part of this Article is if the matters and information set forth by said map were all ully described herein For Oil Drilling Districts and Regulations, see Article 3, Chapter !, Los Angeles Municipal Code.

LA’s 1921 zoning ordinance, which I can’t find a scan of online, apparently had 5 residential zones: A, B, C, D, & E. By the 1946 LA zoning ordinance, the letter β€œR” was used, but it’s not explicitly clear that it stands for β€œresidential” there.

30.07.2025 17:20 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

And the front setback of 10’ goes beyond the state law, which only talks about side and rear setbacks.

30.07.2025 16:23 β€” πŸ‘ 4    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

It looks like many of those items (the setbacks and elimination of step-backs) are SM aligning their local ordinance with the state law. But the local IZ exception for =<5 units does go beyond SB 684/1123, which does not affect local IZ.

30.07.2025 16:21 β€” πŸ‘ 5    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

That’s fantastic! Kudos to Santa Monica!

30.07.2025 15:52 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Another big problem with kitchens not being on an exterior wall is that the expense of running a duct to the outside for the range exhaust hood often leads to the use of β€œrecirculating” vent hoods. This is the situation in the apartment where I live, which is not nearly as deep, and it’s awful.

30.07.2025 15:17 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

The point is, the letter β€œR” in β€œR1” there was not for β€œresidential.”

30.07.2025 07:17 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
Note from Atlanta’s 1922 Tentative Zone Plan:

β€œUnless Otherwise Specified:

U1 Use District is in
A2 Area District
H1 Height
R1 Race

U2 Use District is in
A4 Area District
H2 Height
R1 Race

U3 Use District is in
A3 Area District
H1 Height

U4 Use District is in
A3 Area District
H2 Height

U5 Use District is in
A2 Area District
H5 Height 

U6 Use District is in 
A1 Area District
H3 Height”

Note from Atlanta’s 1922 Tentative Zone Plan: β€œUnless Otherwise Specified: U1 Use District is in A2 Area District H1 Height R1 Race U2 Use District is in A4 Area District H2 Height R1 Race U3 Use District is in A3 Area District H1 Height U4 Use District is in A3 Area District H2 Height U5 Use District is in A2 Area District H5 Height U6 Use District is in A1 Area District H3 Height”

Atlanta’s 1922 Zone Plan, like Euclid’s, used β€œU1” for single-family dwellings, but those occurred in their β€œR1” race district:

30.07.2025 07:17 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
The first page of Berkeley, CA’s 1916 zoning ordinance:

Ordinance No. 452 N. S.:
CREATING A BASIS OF CLASSIFICATION BY MEANS OF WHICH THE CITY OF BERKELEY MAY BE DIVIDED INTO DISTRICTS WITHIN SOME OF WHICH IT SHALL BE LAWFUL AND WITHIN OTHERS OF WHICH IT SHALL BE UNLAWFUL TO ERECT, CONSTRUCT OR MAINTAIN CERTAIN BUILDINGS, OR TO CARRY ON CERTAIN TRADES OR CALLINGS.
Whereas, the public interest and convenience of the City of Berkeley and the proper preservation of its public peace. health and safety require the classification of said City into districts within some of which it shall be lawful and in others unlawful to erect, construct or maintain certain buildings or to carry on certain trades, or callings, and
Whereas, to properly effect said purpose, it is necessary to enact certain definitions of districts within said City as the same are reinafter set out.
Now
Therefore, Be it Ordained by the Council of the City of Berkeley as follows:
SECTION I. Districts of Class I shall be that portion or those portions of the City of Berkeley in which no building or structure shall be erected, constructed or maintained which shall be used for or designed or intended to be used for any purpose other than that of a single family dwelling.
SECTION 2.
Districts of Class II shall be that portion
or those portions of the City of Berkeley in which no building or structure shall be erected, constructed or maintained which shall be used for or designed or intended to be used for any purpose other than that specified in Section I hereof, and that of a two-family dwelling.
SECTION 3. Districts of Class III shall be that portion or those portions of the City of Berkeley in which no building of structures shall be erected, constructed or maintained which shall be used for or designed or intended to be used for any purpose other than those specified in Sections I and 2 and that of a group dwelling, each habitation of which shall have a separate entrance on the ground floor level and of…

The first page of Berkeley, CA’s 1916 zoning ordinance: Ordinance No. 452 N. S.: CREATING A BASIS OF CLASSIFICATION BY MEANS OF WHICH THE CITY OF BERKELEY MAY BE DIVIDED INTO DISTRICTS WITHIN SOME OF WHICH IT SHALL BE LAWFUL AND WITHIN OTHERS OF WHICH IT SHALL BE UNLAWFUL TO ERECT, CONSTRUCT OR MAINTAIN CERTAIN BUILDINGS, OR TO CARRY ON CERTAIN TRADES OR CALLINGS. Whereas, the public interest and convenience of the City of Berkeley and the proper preservation of its public peace. health and safety require the classification of said City into districts within some of which it shall be lawful and in others unlawful to erect, construct or maintain certain buildings or to carry on certain trades, or callings, and Whereas, to properly effect said purpose, it is necessary to enact certain definitions of districts within said City as the same are reinafter set out. Now Therefore, Be it Ordained by the Council of the City of Berkeley as follows: SECTION I. Districts of Class I shall be that portion or those portions of the City of Berkeley in which no building or structure shall be erected, constructed or maintained which shall be used for or designed or intended to be used for any purpose other than that of a single family dwelling. SECTION 2. Districts of Class II shall be that portion or those portions of the City of Berkeley in which no building or structure shall be erected, constructed or maintained which shall be used for or designed or intended to be used for any purpose other than that specified in Section I hereof, and that of a two-family dwelling. SECTION 3. Districts of Class III shall be that portion or those portions of the City of Berkeley in which no building of structures shall be erected, constructed or maintained which shall be used for or designed or intended to be used for any purpose other than those specified in Sections I and 2 and that of a group dwelling, each habitation of which shall have a separate entrance on the ground floor level and of…

Berkeley’s 1916 zoning ordinance (the first to establish single-family-only districts) used β€œClass I, Class II, Class III, et c.:

30.07.2025 06:13 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
Legend from Euclid, OH’s 1922 zoning map:

USE
U1 SINGLE FAMILY
U2 TWO FAMILY
U3 APARTMENT HOUSE
U4 RETAIL & WHOLESALE STORES
U5 COMMERCIAL 
U6 INDUSTRIAL

Legend from Euclid, OH’s 1922 zoning map: USE U1 SINGLE FAMILY U2 TWO FAMILY U3 APARTMENT HOUSE U4 RETAIL & WHOLESALE STORES U5 COMMERCIAL U6 INDUSTRIAL

Other American zoning codes from that time similarly excluded apartments from areas designated for single-family houses, with separate zones for duplexes. This being after Buchanan v. Warley, these other cities used the letter β€œU” for β€œuse.” See here the legend from Euclid, OH’s 1922 map:

30.07.2025 05:52 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
An excerpt from THE ATLANTA ZONE PLAN Report Outlining a Tentative Zone Plan for Atlanta, by Robert H. Whitten, Consultant to the City Planning
Commission. 1922

…The dwelling house districts, from which apartment houses are excluded, will include the larger portion of the entire area of Atlanta.
Trade and industry are excluded from the residence districts. Churches, schools, libra-ries, etc., are permitted in the residence districts.
Hospitals, sanitariums and institutional build. ings are permitted in those blocks of the resi. dence districts already occupied by similar build. ings. They will also be permitted in other locations with the approval of the board of zoning appeals.
RACE ZONING
THE residence districts are further subdivided into three race districts:
R1 or white residence district.
R2 or colored residence district.
R3 or undetermined race district.
In the white residence districts no house not occupied by a colored family at the time of the passage of the zoning ordinance can be thereafter occupied by a colored family. In the colored residence districts no house not occupied by a white family at the time of the passage of the zoning ordinance can be thereafter occupied by a white family. Servants quarters located on the same lot as the residence they serve will nevertheless be allowed in either district without distinction as to race…

An excerpt from THE ATLANTA ZONE PLAN Report Outlining a Tentative Zone Plan for Atlanta, by Robert H. Whitten, Consultant to the City Planning Commission. 1922 …The dwelling house districts, from which apartment houses are excluded, will include the larger portion of the entire area of Atlanta. Trade and industry are excluded from the residence districts. Churches, schools, libra-ries, etc., are permitted in the residence districts. Hospitals, sanitariums and institutional build. ings are permitted in those blocks of the resi. dence districts already occupied by similar build. ings. They will also be permitted in other locations with the approval of the board of zoning appeals. RACE ZONING THE residence districts are further subdivided into three race districts: R1 or white residence district. R2 or colored residence district. R3 or undetermined race district. In the white residence districts no house not occupied by a colored family at the time of the passage of the zoning ordinance can be thereafter occupied by a colored family. In the colored residence districts no house not occupied by a white family at the time of the passage of the zoning ordinance can be thereafter occupied by a white family. Servants quarters located on the same lot as the residence they serve will nevertheless be allowed in either district without distinction as to race…

30.07.2025 05:35 β€” πŸ‘ 4    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0
β€’ Do not attempt to surf a tsunami.

β€’ Do not attempt to surf a tsunami.

Good advice from the LA Times:

30.07.2025 01:52 β€” πŸ‘ 4    πŸ” 2    πŸ’¬ 1    πŸ“Œ 0

And around here (LA/Pasadena), there is no right to a shelter bed like is found in NYC.

30.07.2025 01:29 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

There are work opportunities. A large part of the homeless population is employed.
There are programs with subsidized healthcare for people with low incomes, and SNAP can cover a portion of food costs.
SROs have not been built in quantity in decades.
In CA, # of homeless >>
# of shelter beds.

30.07.2025 01:29 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Like most problems that affect many different people, there are many different causes. But in the high-cost places with large homeless populations (like CA, NY, DC, et c.), the primary one is the high cost of rent. The EO is claiming to address the root cause, but doesn’t do anything about that.

30.07.2025 00:55 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

I agree people need help, and should not live in tents on the street or do drugs. But if drug addiction were the primary cause of homelessness, the places with the most addiction would have the most homelessness. But that’s not the case. Homelessness levels track with the cost of housing.

30.07.2025 00:35 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 2    πŸ“Œ 0

How is saying someone is anti-Israel because they oppose what Netanyahu is doing (as I understand most Israelis do) any different from saying someone is anti-American because they oppose what Trump is doing?

30.07.2025 00:28 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

If I were living on the streets, and might be arrested, attacked, stolen from, et c., at any moment, and there were someone near me selling something that would keep me awake and alert, wouldn’t that be more tempting to me than if I had a roof over my head?

30.07.2025 00:19 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
Preview
West Virginia has the nation’s worst drug problem, but much less homelessness than L.A. To people who believe drug addiction is to blame for L.A.'s tent cities, West Virginia presents a paradox. It leads the U.S. in overdose deaths per capita. But it has a low rate of homelessness.

I’m thinking more of the root causes of it, since that’s what the EO is claiming. Once people get there, that’s a harder nut to crack. But the solutions for preventing homelessness and the treatment of people who are already homeless are separate things to my mind.

www.latimes.com/homeless-hou...

30.07.2025 00:09 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Bear in mind 2 things:
1) visible unsheltered homelessness is the tip of the iceberg
2) direction of the arrow of causation: certainly there’s correlation, but living on the street comes with all sorts of incentives to get high, especially on stimulants

29.07.2025 23:57 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

End our apartment bans now!
A century is way too long.
A day would have been too long.
If you don’t know where they came from, I’ll give you a hint: The letter β€œR” in zoning designations didn’t start out standing for β€œresidential.”
#OverturnEuclid

29.07.2025 23:16 β€” πŸ‘ 18    πŸ” 4    πŸ’¬ 1    πŸ“Œ 0

Trump’s EO on homelessness, like everything else coming out of the White House in 2025, is utterly deranged and misinformed.

29.07.2025 22:04 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

The primary cause is the high cost of housing, which is due to the supply of it being too low. If you want to address the root cause of homelessness (which you should), make it so more homes get built.

29.07.2025 22:04 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

@samalcorn is following 20 prominent accounts