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157 Prospect Ave

Bernal Heights, SF 94110 5617042 2 units · 3 fl · 1902

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 Bernal Heights
At or below average
avg 1.2
0
FewerMore

This building has 0 novs (7y), at or below the Bernal Heights average of 1.2.

Rent & eviction protection

Is 157 Prospect Ave 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 1902
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RH2
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
Floors3
Year built1902
Total area2,150 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot5617042
Ownership

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

Owner name
Jonathan & Samantha Wiesler
Mailing address
Jonathan & Samantha Wiesler 157 Prospect Ave San Francisco CA 94110
Last sale
071802

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.

157 B Prospect Ave, San Francisco, CA 94110
157 Prospect Ave, San Francisco, CA 94110
Augrented Insights
Initial analysis

157 Prospect Avenue is a three-story, two-unit multi-family residential building located in Bernal Heights, constructed in 1902 and currently owned by Jonathan and Samantha Wiesler. The property is notable for undergoing significant improvements following a serious fire incident in September 2016 that caused structural damage to the top floor and required extensive repairs to address electrical, plumbing, and water damage across multiple floors. In the aftermath, the building was fully renovated with comprehensive safety upgrades including the installation of a 38-head fire sprinkler system (completed in 2018), a battery backup system with Tesla Powerwall, rooftop solar PV system, and modernized electrical panels.

The renovation project, which began in 2018 and continued through 2020, included substantial infrastructure improvements such as new in-floor radiant heating systems, plumbing upgrades for four bathrooms and two kitchens, and the installation of gas fireplaces. The building's safety features were further enhanced with the installation of fire sprinkler waterflow monitoring systems and new underground fire lines. Additional improvements included interior modifications such as rear infill, new dormers, and a roof deck addition. Recent 311 calls primarily relate to parking issues and street maintenance matters, with no active building violations or safety concerns recorded since 2021. Planning records indicate completed projects focused on enhancing the building's safety systems and modernizing its infrastructure, with no significant pending issues.

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

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Risk rating

How 157 Prospect Ave'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
61th percentile

Out of 1276 buildings in this neighborhood, 498 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
75%
No DBI
violation
25%
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.

Building age

Older buildings tend to have more maintenance challenges; SF's pre-1906 earthquake housing stock carries distinct risk.

Neighborhood location

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

Neighborhood (ZIP code)

The ZIP code captures local housing market and enforcement patterns that affect all buildings in the area.

12-Month severity forecast
No violation 77.0%
Moderate concern 16.2%
Severe concern 6.8%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

157 Prospect Ave apartment reviews

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The story over time

157 Prospect Ave event timeline

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

2026
311 Request Jun 11
Parking on sidewalk
Parking Enforcement
311 RequestMay 15
Blocked sidewalk

See all 10 events

Full history back to 2019 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 157 Prospect Ave apartments

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

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Cancel anytime · Data sourced from SF Open Data, DBI, SFFD, SF Rent Board & Planning

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