Free SF apartment background check

3351 18Th St

Inner Mission, SF 94110 3590037 18 units · 3 fl · 1908

This building has far more open problems than almost any other in the neighborhood. Renters here report frequent, slow-to-fix problems. Get repair promises in writing and check the unit before signing.

NOVs (7y) vs. neighborhood
Compared to a typical building in Inner Mission
Above average
avg 2.6
13
FewerMore

This building has 13 novs (7y), above the Inner Mission average of 2.6.

Rent & eviction protection

Is 3351 18Th 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 1908
2 or more units
18 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 1908
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
Units18
Floors3
Year built1908
Total area9,960 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot3590037
Ownership

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

Mailing address
3260 26th St San Francisco CA 94110
Last sale
051500

Landlord portfolio

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

Unlock complete report
Augrented Insights
Initial analysis

The three-story, 18-unit building at 3351 18th St in the Inner Mission, owned by Wael & Betty Mufarreh Fmly, was constructed in 1908 and has experienced several significant maintenance and safety concerns over the past several years. Most notably, in December 2022, the building received multiple Notices of Violation related to critical safety systems, including heating, fire escape maintenance, and fire safety requirements. These violations included the need for 24-hour heating, verification of fire escape functionality, concerns about a secondary exit stairway leading to the basement, and issues with exterior wood and metal structures requiring professional inspection. A damaged wall in the janitor closet and missing apartment identification numbers in Unit 12 were also documented. More recent building improvements include a permit issued in February 2025 for fire alarm system replacement and sounder installation in living units, indicating ongoing infrastructure upgrades.

The building has generated substantial service requests over the past seven years, with 381 311 calls recorded, though most appear to be for routine maintenance and neighborhood issues rather than major building concerns. Recent inspections and repairs included work on a damaged kitchen floor in 2021, a routine common area inspection in December 2022, and participation in the Soft Story program as a Tier IV building, which was documented in December 2022. The property has maintained active compliance with most code requirements, as evidenced by the abatement of most DBI complaints and violations, though some issues remain open as of the most recent data. The building's permit history shows relatively minimal construction activity, with only two permits totaling approximately $15,001 in construction costs over the past seven years, though a more substantial fire safety upgrade is currently in progress.

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 3351 18Th 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
2th percentile

Out of 2380 buildings in this neighborhood, 2332 are predicted to be safer.

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

Building size

Total floor area — a proxy for building scale and the number of systems (plumbing, electrical, HVAC) that can fail.

NOV rate, owner's portfolio

Per-building NOV rate across everything this owner manages — high rates signal pattern neglect.

12-Month severity forecast
No violation 7.4%
Moderate concern 66.1%
Severe concern 26.4%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

3351 18Th St 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

Create account

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
8 found
The story over time

3351 18Th St event timeline

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

2026
311 Request Jul 30
Encampment
Encampment
311 RequestJul 21
Not offensive

See all 22 events

Full history back to 2020 — violations, complaints, permits, buyouts, and fire incidents.

Unlock complete timeline
Every record we have

Full data for 3351 18Th St 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.

Search another address Get full report
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
Most Popular Current plan

Renter

For the weeks when the stakes are highest

$10/mo

Billed $120/year — save $24 vs monthly

  • Unlimited basic reports
  • 5 premium AI reports per month
  • Download PDF & Excel reports
  • Full public records (200 rows per dataset)
  • Full event timeline — every year of history
  • Landlord portfolio & ownership insights
Start Your Search

Less than $0.34/day. Cancel anytime.

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

Watch 3351 18Th St
Get alerted the moment a new violation or complaint is filed.