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231-233 Connecticut St

Potrero Hill, SF 94107 4003026 2 units · 2 fl · 1926

This building has a higher-than-average number of open problems nearby. Few open issues; problems get fixed quickly. A reasonable bet for a smooth tenancy.

NOVs (7y) vs. neighborhood
Compared to a typical building in Potrero Hill
At or below average
avg 1.1
0
FewerMore

This building has 0 novs (7y), at or below the Potrero Hill average of 1.1.

Rent & eviction protection

Is 231-233 Connecticut St rent-controlled?

San Francisco's Rent Ordinance caps rent increases and provides eviction protection for most residential units built before 1979 with 2+ units. Here's how this building scores.

Built before 1979
Built 1926
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RH3
Likely rent-controlled. Building age and unit count suggest this property falls under San Francisco's Rent Ordinance.

Based on SF Assessor records. Not legal advice — confirm with the SF Rent Board.

Building characteristics
Units2
Floors2
Year built1926
Total area2,409 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot4003026
Ownership

Registered owner per SF Assessor-Recorder (secured roll).

Owner name
Allen Leah Friend & Stephen
Mailing address
767 Carolina St Apt A San Francisco CA 94107
Last sale
122320

Landlord portfolio

Other SF properties this owner holds, with risk grades for each.

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Multiple entrances & addresses

Included addresses

All street addresses sharing this blocklot that are covered by this report.

231 Connecticut St, San Francisco, CA 94107
233 Connecticut St, San Francisco, CA 94107
Augrented Insights
Initial analysis

The two-unit residential building at 231-233 Connecticut Street in Potrero Hill is a two-story structure built in 1926, currently owned by Leah Friend & Stephen Allen. The property underwent significant improvements in recent years, with major renovation work commencing in 2018 that included a vertical addition to convert the upstairs unit from 2 bedrooms/1 bath to 3 bedrooms/2.5 baths, and the downstairs unit from 1 bedroom/1.5 baths, along with various plumbing upgrades and foundation work. More recent improvements included the installation of new heating systems with a high-efficiency furnace and heat pump in 2021, and electrical upgrades including a panel upgrade and rewiring work, though the latter was ultimately cancelled.

The building has experienced some notable issues during its renovation period. In March 2021, there was a tenant complaint regarding construction safety concerns involving smoking and sawdust on-site, which was documented through the 311 system. More recently, in December 2024, there was a sewage back-up discharge incident from the side sewer vent that was resolved by PUC Sewer Operations. The property has undergone necessary infrastructure improvements, including sewer lateral replacement in 2015 and various plumbing upgrades in 2020-2021 adding new bathrooms with underground and gas lines. Historical records show earlier maintenance work in the 1990s for dry rot issues and cabinet replacement, indicating past structural concerns that appear to have been addressed. The building is currently listed as multi-family residential and has completed multiple permit requirements for its renovation work, including obtaining CEQA clearance and meeting building department standards.

AI-generated · may contain errors · check the source data tables below

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Risk rating

How 231-233 Connecticut St's risk score is calculated

We trained a model on 7 years of SF DBI inspection data — notice of violation filings, complaint history, and owner track records. It estimates the probability that DBI inspectors will issue a Notice of Violation at this address in the next 12 months. Lower % = safer.

What the score means for you

Grade A–B — Low risk

DBI rarely finds violations here. Strong maintenance history and a clean complaint record.

Grade C — Moderate risk

Some past violations or complaints on record. Worth asking the landlord about any open issues before signing.

Grade D–F — High risk

Elevated violation and complaint history. DBI has found issues here before and is statistically likely to again.

Neighborhood percentile
57th percentile

Out of 726 buildings in this neighborhood, 312 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
78%
No DBI
violation
22%
DBI violation
likely
Model explanation

What's driving this score

The three data points that most influenced this building's risk rating — ranked by the weight the model placed on each one.

DBI tenant complaints (past 7 years)

Formal complaints tenants filed with DBI about this building over 7 years.

Neighborhood location

Precise location is a proxy for neighborhood-level risk — some SF blocks have systematically higher DBI activity.

Neighborhood location

Precise location is a proxy for neighborhood-level risk — some SF blocks have systematically higher DBI activity.

12-Month severity forecast
No violation 80.3%
Moderate concern 16.4%
Severe concern 3.3%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

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The story over time

231-233 Connecticut St event timeline

Violations, complaints, fire incidents, permits, and buyouts — most recent records in order.

2022
Electrical Permit May 12
Final inspection for ew202102283816
Complete

See all 9 events

Full history back to 2020 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 231-233 Connecticut St apartments

13 SF public datasets for this parcel — permits, violations, complaints, fire records, 311 calls, planning records, and buyouts.

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