Free SF apartment background check

1915-1917 18Th Ave

Inner Parkside, SF 94116 2116001G 2 units · 2 fl · 1945

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 Inner Parkside
At or below average
avg 0.5
0
FewerMore

This building has 0 novs (7y), at or below the Inner Parkside average of 0.5.

Rent & eviction protection

Is 1915-1917 18Th 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 1945
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RH1
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
Floors2
Year built1945
Total area2,274 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot2116001G
Ownership

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

Owner name
Flynn Mary Ann
Mailing address
1917 18th Ave San Francisco CA 94116
Last sale
102710

Landlord portfolio

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

Unlock complete report
Multiple entrances & addresses

Included addresses

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

1917 18th Ave, San Francisco, CA 94116
1915 18th Ave, San Francisco, CA 94116
Augrented Insights
Initial analysis

The two-unit residential building at 1915-1917 18th Avenue, owned by Mary Ann Flynn, is a two-story structure built in 1945 in the Inner Parkside neighborhood. The building's maintenance record shows a significant reroofing project completed in 2015 at a cost of $9,000, which demonstrates investment in building upkeep. However, there have been some concerning recent events that warrant attention. Most notably, in October 2024, the building experienced two separate sewage back-up incidents from the side sewer vent, though these were resolved through field work completed by the Public Utilities Commission. More recently, in January 2025, there is an open issue regarding an overgrown tree near communication lines, and in September 2024, there was concern about tree roots damaging the sidewalk. The property has experienced various parking and infrastructure issues in the surrounding area, including multiple reports of abandoned vehicles and a pavement defect that was eventually resolved in November 2024.

The building's tenant buyout history between 2017 and 2018 shows three transactions in the immediate vicinity, with amounts ranging from $16,750 to $35,000, though these were for properties at 1938 18th Avenue and 1961 16th Avenue, not directly related to the current building. The most recent significant building-related administrative action was a rent board fee housing inventory request in January 2025, which has been resolved and updated in the portal system. While the building's major systems appear to be receiving some attention, the recent sewer incidents and ongoing tree maintenance issues may impact resident quality of life.

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

Free account unlocks the full analysis — plus 2× more records across all data categories and the complete landlord portfolio.
Risk rating

How 1915-1917 18Th 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
84th percentile

Out of 121 buildings in this neighborhood, 19 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
87%
No DBI
violation
13%
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.

Neighborhood location

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

Construction spend, owner's portfolio

Estimated permit value across all of this owner's buildings.

Building permits, owner's portfolio

Permits pulled across all of this owner's buildings over 7 years.

12-Month severity forecast
No violation 78.9%
Moderate concern 13.1%
Severe concern 8.1%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

1915-1917 18Th Ave apartment reviews

Real experiences from people who have lived here. Share yours to help other renters decide.

Share your experience — Help other renters by leaving an honest apartment review

Loading reviews…

On the map

Compare nearby alternatives

This building and nearby alternatives, color-coded by risk level. Click any marker to explore.

Buildings nearby
Loading…
The story over time

1915-1917 18Th Ave event timeline

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

2025
Plumbing Permit Jan 30
Work category: 1p; extending houseline gas plumbing to facilitate meter move
Complete

See all 1 events

Full history back to 2025 — violations, complaints, permits, buyouts, and fire incidents.

Unlock complete timeline
Every record we have

Full data for 1915-1917 18Th Ave apartments

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

Still apartment hunting in SF?

Look up the next apartment before you sign

Search any SF address free — no account needed to see the risk rating.

Simple pricing

Get the complete picture

Every plan unlocks the complete report: all 13 SF datasets, full history, landlord portfolio, and PDF & Excel exports.

Report Bundle

For the buildings you're deciding on right now

$10 one-time

~$3.33 per building. No subscription ever. Each credit unlocks one building's premium report for 30 days.

  • 3 full AI-powered reports
  • Download PDF reports
  • Advanced safety analysis
  • Compare multiple buildings
  • Credits never expire until you use them
  • Full public records (200 rows per dataset)
Buy 3 Reports — $10

Apartment Hunter

For a wide search across many buildings

$39 one-time

30 reports — ~$1.30 each. No subscription ever.

  • 30 full AI-powered reports
  • Download PDF reports
  • Advanced safety analysis
  • Compare multiple buildings
  • Credits never expire until you use them
  • Full public records (200 rows per dataset)
Buy 30 Reports — $39

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

Watch 1915-1917 18Th Ave
Get alerted the moment a new violation or complaint is filed.