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4200-4204 17Th St

Corona Heights, SF 94114 2625012 3 units · 2 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 Corona Heights
At or below average
avg 1.2
0
FewerMore

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

Rent & eviction protection

Is 4200-4204 17Th 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 1902
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.

Building characteristics
Units3
Floors2
Year built1902
Total area4,950 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot2625012
Ownership

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

Owner name
Drypolcher Lp
Mailing address
Drypolcher William & Trudy 25 Mountain Spring Ave San Francisco CA 94114
Last sale
000000

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.

4202 17th St, San Francisco, CA 94114
4204 17th St, San Francisco, CA 94114
4200 17th St, San Francisco, CA 94114
Augrented Insights
Initial analysis

The three-unit residential building at 4200-4204 17th Street in Corona Heights, owned by Drypolcher LP, is a two-story structure built in 1902 that includes commercial space. The property has undergone significant maintenance and improvements over recent years, with the most recent work completed in 2023 involving dry-rot repairs to the wood deck of the roof structure, following a pattern of ongoing roof maintenance. Major renovations were conducted in 2015-2020, including seismic improvements, bathroom and kitchen remodels, and electrical upgrades. The building has received appropriate plumbing updates, including new fixtures installation and main sewer line replacement in 2010.

Several complaints regarding unauthorized modifications have been filed in previous years, particularly in 2017 concerning unpermitted rooftop structures and 2015 regarding work without proper permits, though these issues were marked as "Not Active." The building experienced a combustible materials complaint in September 2015 that was referred to another agency. In early 2025, there has been an increase in reports of graffiti around the property and adjacent areas, with multiple incidents recorded in January 2025, along with some garbage-related complaints. A 400-amp electrical service upgrade is currently underway as of October 2024, representing the latest infrastructure improvement to the property.

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

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Risk rating

How 4200-4204 17Th 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
47th percentile

Out of 348 buildings in this neighborhood, 184 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
81%
No DBI
violation
19%
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.

Property class: apartment building

Apartment building — this property classification influences expected violation rates.

Building age

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

Owner's portfolio size

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

12-Month severity forecast
No violation 73.3%
Moderate concern 20.9%
Severe concern 5.8%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
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The story over time

4200-4204 17Th St event timeline

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

2025
311 Request Mar 18
Damaged tree
fallen tree
311 RequestFeb 20
Garbage and debris

See all 11 events

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

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Every record we have

Full data for 4200-4204 17Th St 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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