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837-839 Shrader St

Cole Valley/Parnassus Heights, SF 94117 1262009 2 units · 2 fl · 1900

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 Cole Valley/Parnassus Heights — not a forecast
At or below average
avg 0.9
0
FewerMore

This building has 0 novs (7y), at or below the Cole Valley/Parnassus Heights average of 0.9.

Rent & eviction protection

Is 837-839 Shrader 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
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.

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
Units2
Floors2
Year built1900
Total area2,300 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1262009
Ownership

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

Mailing address
Charles C & Carol A Knappic 1176 Clayton St San Francisco CA 94117
Last sale
—

Landlord portfolio

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

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Multiple entrances & addresses

Included addresses

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

837 Shrader St, San Francisco, CA 94117
839 Shrader St, San Francisco, CA 94117
Augrented Insights
Initial analysis

The property at 837-839 Shrader Street is a two-unit, two-story multi-family residential building constructed in 1900, currently owned by Charles C & Carol A Knappic. The building has undergone several significant maintenance and improvement projects in recent years, most notably a comprehensive reroofing project scheduled for Spring 2024 costing $23,700, and the recent replacement of a concrete and steel front stair with a wooden stair completed in late 2023 at a cost of $17,000. The building's infrastructure has received attention with the recent completion of plumbing upgrades, including the replacement of a clay sewer system and house trap with HDPE and cast iron components in November 2024, and the replacement of a leaking water main in February 2023.

The property has experienced some maintenance issues in the past, including water damage repairs to the top-level unit in 2013 affecting approximately 300 square feet of ceiling and wall surfaces. The building has been subject to several 311 calls in recent months, primarily related to street cleaning issues such as garbage and debris on the sidewalk, with multiple cases being resolved between October and November 2024. While these street cleaning issues and some parking violations have been documented, they appear to be primarily related to the public space around the building rather than the building itself. The property has maintained compliance with housing regulations, with all recent permits being properly processed and completed, including historical records showing proper documentation of the building's two-unit classification in 1982.

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

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Risk rating

How 837-839 Shrader 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
95thpercentile

Out of 526 buildings in this neighborhood, 26 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
93%
No DBI
violation
7%
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.

Notices of Violation, owner's portfolio

DBI NOVs across all buildings this owner is registered on — a signal of systemic maintenance issues across the portfolio.

Owner's portfolio size

Number of SF parcels this owner is registered on — larger portfolios have distinct risk patterns.

12-Month risk forecast
Low failure risk 7%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

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On the map

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8 found
The story over time

837-839 Shrader St event timeline

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

2026
311 Request Mar 29
Sidewalk defect
collapsed sidewalk
311 RequestMar 24
Blocking driveway cite tow

See all 10 events

Full history back to 2023 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 837-839 Shrader St apartments

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

Side by side

How 837-839 Shrader St compares to the neighborhood

This building against comparable properties in Cole Valley/Parnassus Heights. Toggle filters to narrow the peer group.

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