Free SF apartment background check

51 Prosper St

Eureka Valley/Dolores Heights, SF 94114 3564031 5 units · 2 fl · 1906

Nothing on record for this building in the last seven years, and our model puts it at a low risk of maintenance problems over the next 12 months. No public enforcement record to go on. Walk the building, ask the current tenants how repairs get handled, and get any promises in writing.

NOVs (7y) vs. neighborhood
Records already on file, against a typical building in Eureka Valley/Dolores Heights — not a forecast
At or below average
avg 1.4
0
FewerMore

This building has 0 novs (7y), at or below the Eureka Valley/Dolores Heights average of 1.4.

Rent & eviction protection

Is 51 Prosper 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 1906
2 or more units
5 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.

Statewide backstop · AB 1482

California Tenant Protection Act of 2019

Even when a building isn't covered by local rent stabilization, the statewide Tenant Protection Act (AB 1482) may still apply. It caps annual rent increases and requires the landlord to state a legal reason to end most tenancies.

15+ years since occupancy
Built 1906
Annual rent increase cap
5% + CPI, max 10%
Just-cause eviction
After 12 months
Local rent control likely takes priority. This building appears to fall under the local ordinance above, which is stronger than AB 1482. Where a local just-cause ordinance applies, its rules govern instead of the state cap.

AB 1482 does not apply to single-family homes and condos unless owned by a corporation, REIT, or an LLC with a corporate member; to owner-occupied duplexes; or to deed-restricted affordable housing. The Act is in effect until January 1, 2030. Not legal advice — see the California landlord–tenant guide.

Building characteristics
Units5
Floors2
Year built1906
Total area2,704 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot3564031
Ownership

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

Mailing address
51 Prosper St Apt 5 San Francisco CA 94114
Last sale
June 13, 2013

Landlord portfolio

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

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Augrented Insights
Initial analysis

The two-story, 5-unit multi-family residential building at 51 Prosper Street, owned by Metz Thomas W & Brightman D, has undergone significant improvements since its construction in 1906. Most recently, in March 2024, work was issued to merge apartments 2 and 5, including adding a staircase and converting an existing kitchen to a bedroom. The building has seen substantial upgrades to its systems over recent years, including a $50,000 electrical panel upgrade in 2022 to a 400-amp system with individual meters for each unit, and comprehensive bathroom and kitchen remodels for Units 3 and 4. In 2022-2023, dedicated circuits were installed for new ovens in Units 3 and 4. The building completed mandatory soft-story seismic retrofitting in 2015 as a Tier 3 property.

Historical maintenance issues have included several concerning complaints between 2002 and 2013, primarily related to safety concerns such as inadequate heating, security violations, and egress issues. These problems, including heating system failures and security concerns, were generally addressed within a few months of being reported. Significant structural work was performed in 2013, including partial foundation replacement and repairs for termite damage, along with various electrical and plumbing upgrades. The property has maintained compliance with all major building codes since completing the soft-story retrofit, though there was notable work required in 2022-2023 to modernize the building's electrical infrastructure and address various unit-specific improvements, suggesting ongoing investment in building maintenance and resident comfort. Several 311 calls have been logged for the address in recent years, primarily related to parking issues and street cleaning, though these are typical for urban properties and not directly related to building conditions.

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

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Risk rating

How 51 Prosper 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

Lower risk — safer than most nearby

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

Typical — about average for the neighborhood

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

Higher risk — riskier than most nearby

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

Neighborhood percentile
85thpercentile

Out of 1278 buildings in this neighborhood, 192 are predicted to be safer. The band is relative to this neighborhood, so a share of every neighborhood falls in each colour.

RiskiestSafest
Predicted 12-month outcome
88%
No DBI
violation
12%
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.

Number of units

The number of units affects how the model reads complaint and violation totals — more units means more potential sources.

Neighborhood location

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

Building age

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

12-Month risk forecast
Low failure risk 12%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

51 Prosper St apartment reviews

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On the map

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The story over time

51 Prosper St event timeline

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

2026
Electrical Permit Apr 17
Work for unit #2 at 51 prosper street. rewire of existing knob and tube wiring with romex. installation of electric panel in unit.
Issued
Plumbing PermitJan 20
Work category: 1m; install mini split system.

See all 20 events

Full history back to 2022 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 51 Prosper St apartments

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

Side by side

How 51 Prosper St compares to the neighborhood

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