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89 Heather Ave

Jordan Park/Laurel Heights, SF 94118 1041012 12 units · 3 fl · 1951

This building has significantly more problems than most nearby buildings. A handful of unresolved issues. Worth a careful walk-through and pointed questions.

NOVs (7y) vs. neighborhood
Compared to a typical building in Jordan Park/Laurel Heights
At or below average
avg 0.9
0
FewerMore

This building has 0 novs (7y), at or below the Jordan Park/Laurel Heights average of 0.9.

Rent & eviction protection

Is 89 Heather 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 1951
2 or more units
12 units
Property type
Multi-Family Residential
Zoning
RM1
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
Units12
Floors3
Year built1951
Total area9,678 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1041012
Ownership

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

Owner name
Demartini Luigi&Maria Famly
Mailing address
232 Aragon Blvd San Mateo CA 94402
Last sale
120294

Landlord portfolio

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

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Augrented Insights
Initial analysis

The three-story, 12-unit apartment building at 89 Heather Avenue, owned by the Demartini family, has undergone several significant safety and maintenance improvements since its construction in 1951. Most notably, the building completed a mandatory fire alarm replacement in 2022, including the installation of a new conventional fire alarm panel and LF horns in the units, to comply with current fire safety codes. The building has also addressed seismic safety requirements through a completed soft-story retrofit in 2016, demonstrating compliance with San Francisco Building Code Chapter 34B.

The property has benefited from consistent maintenance and upgrades over the years, including multiple window replacements for improved energy efficiency between 1995 and 2011 (all windows were double-pane with a U-factor of 0.30). Plumbing upgrades include the installation of new domestic hot water systems in 2008 and a furnace replacement in 2015. Routine safety inspections by Housing Inspection Services in 2000, 2003, 2008, and 2012 have been completed without any noted ongoing concerns. While there have been some street-level issues reported through 311 calls, such as blocked sidewalks and waste on the street, these are typical urban maintenance matters and do not directly reflect on the building's condition or management. The building experienced two fire alarm system-related complaints (2006 and 2016) which were promptly corrected, and there was one incident involving a flammable liquid spill, but no civilian injuries were reported in any incidents.

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

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Risk rating

How 89 Heather 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
14th percentile

Out of 272 buildings in this neighborhood, 234 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
46%
No DBI
violation
54%
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.

Building size

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

Number of units

The number of units affects how the model reads complaint and violation totals — more units means more potential sources.

Estimated permit spend (past 7 years)

Dollar value of permits pulled at this address — large recent spend can signal deferred-maintenance catch-up.

12-Month severity forecast
No violation 33.3%
Moderate concern 52.6%
Severe concern 14.1%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

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The story over time

89 Heather Ave event timeline

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

2024
311 Request Apr 01
Bulky items
Furniture
311 RequestMar 26
Bulky items

See all 6 events

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

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Every record we have

Full data for 89 Heather Ave 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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