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52 Mars St

Corona Heights, SF 94114 2654008 3 units · 2 fl · 1900

A handful of records on file over the last seven years, and our model sees a moderate chance of more in the next 12 months. A few records worth reading before you sign. Check whether they were closed out, and ask what was actually fixed.

NOVs (7y) vs. neighborhood
Records already on file, against a typical building in Corona Heights — not a forecast
At or below average
avg 1.3
1
FewerMore

This building has 1 novs (7y), at or below the Corona Heights average of 1.3.

The bar and the rating point different ways because they measure different things: the bar counts DBI violations already on file, the rating forecasts the next 12 months.

Rent & eviction protection

Is 52 Mars 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 1900
2 or more units
3 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 1900
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
Units3
Floors2
Year built1900
Total area2,075 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot2654008
Ownership

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

Owner name
Mailing address
25 Augusta Way South Yarmouth MA 02664
Last sale
April 26, 2021

Landlord portfolio

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

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Augrented Insights
Initial analysis

The three-unit residential property at 52 Mars Street in Corona Heights, owned by Sharon Riley Neely, is a two-story flats and duplex building constructed in 1900. The building has undergone significant maintenance and upgrades over the past few years, including a complete reroofing in 2022 (cost: $14,000), major repairs to address damage from dry-rot in 2022 (cost: $61,000), and comprehensive electrical work for an ADU installation in 2023. A notable incident occurred in December 2021 when unauthorized construction work was reported, leading to an active building violation that was referred to a director's hearing in February 2023, though there is no current record of abatement. The property has seen multiple infrastructure improvements, including the installation of a solar PV system with battery storage in December 2022, and plumbing upgrades across various units between 2021 and 2023, though some permits were initially expired and required renewal.

The building has experienced periodic tenancy turnover, with two recorded tenant buyouts in 2021 ($30,000) and 2023 ($95,000). There have been several parking-related issues near the property, with multiple 311 calls regarding sidewalk blocking between 2021 and 2024, though most of these cases resulted in officers being unable to locate the vehicles in question. Historical records from the 1990s show repeated roofing issues, with three documented reroofing projects between 1992 and 1997, suggesting this remains an ongoing maintenance priority. The property's status as a three-unit building has been the subject of scrutiny, with planning records indicating possible concerns about work done to a rear non-conforming structure and its impact on unit count, though recent documents confirm the property has three documented residential units on record.

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

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Risk rating

How 52 Mars 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
27thpercentile

Out of 348 buildings in this neighborhood, 254 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
72%
No DBI
violation
28%
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.

Director's hearing rate, owner's portfolio

Per-building rate of director's hearings across the owner's portfolio.

Director's hearings (past 7 years)

Director's hearings are escalated enforcement actions for buildings that haven't resolved violations — a serious signal.

12-Month risk forecast
Moderate failure risk 28%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

52 Mars St apartment reviews

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On the map

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The story over time

52 Mars St event timeline

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

2025
Plumbing Permit Dec 14
Work category: 1m; furnace change out
Issued
Electrical PermitMay 27
Sub panel installation. bathroom, kitchen, living room knob and tube rewiring

See all 15 events

Full history back to 2021 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 52 Mars St apartments

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

Side by side

How 52 Mars St compares to the neighborhood

This building against comparable properties in Corona Heights. Toggle filters to narrow the peer group.

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

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