Free SF apartment background check

4779-4781 18Th St

Eureka Valley/Dolores Heights, SF 94114 2689014 2 units · 2 fl · 1910

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 Eureka Valley/Dolores Heights — not a forecast
At or below average
avg 1.4
0
FewerMore

This building has 0 novs (7y), at or below the Eureka Valley/Dolores Heights average of 1.4.

Rent & eviction protection

Is 4779-4781 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 1910
2 or more units
2 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 1910
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 built1910
Total area1,113 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot2689014
Ownership

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

Mailing address
4781 18th St San Francisco CA 94114
Last sale
January 17, 2018

Landlord portfolio

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

Unlock complete report
Multiple entrances & addresses

Included addresses

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

4781 18th St, San Francisco, CA 94114
4779 18th St, San Francisco, CA 94114
Augrented Insights
Initial analysis

The property at 4779-4781 18th Street is a two-unit, two-story multi-family residential building constructed in 1910, located in the Eureka Valley/Dolores Heights neighborhood and currently owned by Stephen B. Ratchye and Wo Baik. The building has undergone several significant renovations in recent years, with the most recent work completed in 2024 including electrical and plumbing updates for a bathroom remodel. In 2022, the property underwent substantial improvements including moving partition walls to expand a bathroom, relocating various fixtures, and modifications to the kitchen. Previous important updates include the replacement of the electrical panel (2022), furnace installation (2021), and the replacement of rear decks at the 2nd and 3rd floors (2021-2022). The building's maintenance history shows attention to structural integrity, with work on anchor bolts and plywood reinforcement in the garage completed in 2018, and historical upgrades including window replacements (2009) and roofing work (2001).

The property has experienced some recent cleanliness issues, with multiple 311 calls related to garbage and debris recorded throughout 2024, though these were primarily related to street cleaning rather than specific building maintenance concerns. A notable tenant buyout occurred in February 2018 for unit 4781, with one tenant compensated $77,700. The property has maintained compliance with various building codes and requirements, as evidenced by the completion and inspection of multiple permits, though some permits from 2023 and 2021 show as expired or cancelled, including a cancelled electrical permit for bathroom and kitchen work, and an expired plumbing permit for bathroom installations. The building's owners have consistently invested in upgrades and maintenance, focusing on both interior improvements and exterior maintenance, as shown by the complete records of various improvement projects spanning several decades.

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 4779-4781 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

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
96thpercentile

Out of 1278 buildings in this neighborhood, 51 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.

Neighborhood location

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

Building age

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

Neighborhood (ZIP code)

The ZIP code captures local housing market and enforcement patterns that affect all buildings in the area.

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

4779-4781 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

Loading reviews…

On the map

Compare nearby alternatives

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

The story over time

4779-4781 18Th St event timeline

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

2026
Planning Project Feb 22
Demolition of decks at 2nd and 3rd floor at rear of building and exterior rear stair with landing. Construction of new decks at 2nd and 3rd floor at rear of building with ladder. Change of exterior door to window at rear of building where landing was demolished.
Submitted

See all 13 events

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

Unlock complete timeline
Every record we have

Full data for 4779-4781 18Th St apartments

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

Side by side

How 4779-4781 18Th St compares to the neighborhood

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

Loading comparables…
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.

Pay once

Report Bundle

For the buildings you're deciding on right now

$10one time

3premium reports

$3.33 per report · charged once, never renews

Each credit unlocks one building's premium report for 30 days.

  • 3 premium reports — AI executive summary included
  • Live data across all 27 public record types
  • 200 records per dataset
  • PDF & Excel exports included
  • Compare up to 10 buildings side-by-side
  • Credits never expire until you use them
Pay once

Apartment Hunter

For a wide search across many buildings

$39one time

30premium reports

$1.30 per report · charged once, never renews

Each credit unlocks one building's premium report for 30 days.

  • 30 premium reports — AI executive summary included
  • Live data across all 27 public record types
  • 200 records per dataset
  • PDF & Excel exports included
  • Compare up to 10 buildings side-by-side
  • Credits never expire until you use them

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

Watch 4779-4781 18Th St
Get alerted the moment a new violation or complaint is filed.