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640 Post St

Downtown, SF 94109 0298009 39 units · 9 fl · 1912

This building has a substantial enforcement record over the last seven years, and our model predicts continuing maintenance failures over the next 12 months. Read the records below before you sign. Ask which issues were resolved, get repair commitments in writing, and inspect the unit yourself.

NOVs (7y) vs. neighborhood
Records already on file, against a typical building in Downtown — not a forecast
Above average
avg 6.9
10
FewerMore

This building has 10 novs (7y), above the Downtown average of 6.9.

Rent & eviction protection

Is 640 Post 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 1912
2 or more units
39 units
Property type
Multi-Family Residential
Zoning
RC4
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 1912
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
Units39
Floors9
Year built1912
Total area19,560 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0298009
Ownership

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

Mailing address
Harry H Andrews Iii 624 Post St San Francisco CA 94109
Last sale

Landlord portfolio

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

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Augrented Insights
Initial analysis

The 39-unit, 9-story multi-family residential building at 640 Post Street, owned by the Harry H III Trust, has experienced significant and ongoing maintenance and safety issues since its construction in 1912. Most recently, in the first half of 2024, there have been multiple complaints regarding inadequate hot water supply, low water pressure, and unauthorized plumbing work, with residents reporting persistent discomfort in cold weather. Three plumbing complaints were filed in March 2024 regarding inoperative plumbing, affecting multiple units. The building has a concerning history of fire safety violations, with multiple citations issued between 2015 and 2024, including recent violations in December 2024 related to sprinkler systems and sleeping area requirements. There have also been significant plumbing infrastructure updates, including the removal and replacement of domestic hot water storage tanks in March 2024, and the installation of a new heating boiler in 2011.

The building's maintenance record shows a pattern of deferred upkeep and emergency repairs, with residents reporting unpermitted work, construction outside of posted hours, and various system failures. A cluster of complaints in December 2022 highlighted multiple urgent issues, including gas leaks, plumbing problems, and concerns about an alleged illegal unit on the rooftop. The property has also faced historical violations regarding its sprinkler system, electrical work, and window safety features. Recent 311 calls from January 2025 indicate continued concern about building management responsiveness, though these were primarily related to housing inventory requests. The fire department's records show regular inspections and occasional incidents, though none involving civilian injuries. The building's age and history suggest ongoing maintenance challenges, with recent complaints focusing on basic services like hot water and heating being particularly prominent through 2023-2024.

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

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Risk rating

How 640 Post 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
2ndpercentile

Out of 448 buildings in this neighborhood, 439 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
5%
No DBI
violation
95%
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 risk forecast
High failure risk 95%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

640 Post St apartment reviews

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On the map

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The story over time

640 Post St event timeline

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

2026
311 Request Aug 04
Garbage and debris
other loose garbage debris yard waste
311 RequestJul 26
Encampment

See all 29 events

Full history back to 2022 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 640 Post St apartments

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

Side by side

How 640 Post St compares to the neighborhood

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

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