City Heights Apts (aka Avalon Nob Hill)
Mixed Residential in San Francisco, CA · 840 POST ST · 94109
At a glance
City Heights Apts (aka Avalon Nob Hill) is a 107,900-square-foot mixed residential building at 840 POST ST in San Francisco, California. In its 2025 San Francisco benchmarking disclosure it reported an ENERGY STAR score of 100 out of 100 (grade A), a site energy-use intensity of 14.8 kBtu/ft² and 61 tCO₂e of greenhouse-gas emissions. That score is higher than 69% of the 340 scored mixed residential buildings in San Francisco.
SF Environment Code Chapter 20 · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 100 (band A) |
| Site EUI | 14.8 kBtu/ft² |
| Source EUI | 41.5 kBtu/ft² |
| GHG emissions | 61 tCO₂e |
| GHG intensity | 0.8 kgCO₂e/ft² |
| Electricity | 313,883 kWh |
| Gross floor area | 107,900 sq ft |
| Source record | sf:0300/025:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | 100 | ±0 | 14.8 kBtu/ft² | 61 tCO₂e |
| 2024 | 100 | ±0 | 19.3 kBtu/ft² | 93 tCO₂e |
| 2023 | 100 | 20.6 kBtu/ft² | 106 tCO₂e | |
| 2022 | — | — | — | |
| 2021 | 100 | 20.8 kBtu/ft² | 91 tCO₂e | |
| 2020 | — | 28.1 kBtu/ft² | 224 tCO₂e | |
| 2019 | — | — | — | |
| 2018 | — | — | — |
Compliance context
SF Environment Code Chapter 20
San Francisco's ordinance requires annual benchmarking for commercial buildings over 10,000 sq ft, with administrative penalties for buildings that fail to report.
Ownership
No owning organisation shown. Names of private individuals in the disclosure are not published here.
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- 840 POST ST
- City
- San Francisco
- State
- California
- ZIP
- 94109
- Coordinates
- 37.78778, -122.41594
Within ~1 km
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See also: most efficient in San Francisco · biggest emitters
How does City Heights Apts (aka Avalon Nob Hill) compare with other mixed residential buildings in San Francisco?
The latest disclosures cover 610 mixed residential buildings in San Francisco, out of 2,509 buildings citywide. City Heights Apts (aka Avalon Nob Hill)'s ENERGY STAR score of 100 compares with an average of 85 across the 340 that report a score; it scores higher than 69% of them. Its site EUI of 14.8 kBtu/ft² is about 59% below the average of 36.0 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 0.8 kgCO₂e/ft² is about 57% below the group average of 2.0 kgCO₂e/ft².
At 107,900 sq ft, it is about 35% below the average floor area of 165,572 sq ft for those buildings.
How has City Heights Apts (aka Avalon Nob Hill)'s energy performance changed over time?
BuildingCensus holds 8 San Francisco disclosures for City Heights Apts (aka Avalon Nob Hill), covering report years 2018–2025. Its ENERGY STAR score was 100 in both 2021 and 2025. Site EUI moved from 28.1 kBtu/ft² (2020) to 14.8 kBtu/ft² (2025), a 47% decrease. Reported emissions went from 224 tCO₂e to 61 tCO₂e over the same span (down 73%).
What does an ENERGY STAR score of 100 mean?
ENERGY STAR scores run from 1 to 100 and are computed by the EPA's Portfolio Manager as a percentile against similar buildings nationwide, adjusted for climate, size and use: 100 is the top of the scale. BuildingCensus bands the score into report-card grades; 100 falls in band A — high performer (85–100). Scores of 75 or higher meet the threshold for ENERGY STAR certification; certification itself is a separate, verified application that the disclosure does not record. In San Francisco, 73% of scored buildings are at 75 or above.
Site energy-use intensity (EUI) is the energy a building uses on site in a year divided by its floor area, in thousand Btu per square foot — lower is more efficient. City Heights Apts (aka Avalon Nob Hill)'s 14.8 kBtu/ft² across 107,900 sq ft works out to about 1.6 billion Btu (468 MWh-equivalent) in 2025. Its source EUI of 41.5 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 313,883 kWh of electricity for the year.
Which law requires City Heights Apts (aka Avalon Nob Hill) to report its energy use?
City Heights Apts (aka Avalon Nob Hill) reports under SF Environment Code Chapter 20, the legal basis of San Francisco's Existing Buildings Energy Performance Ordinance, which publishes each covered building's annual benchmarking results. The record shown here is the report-year 2025 disclosure (source record sf:0300/025:2025). San Francisco's ordinance requires annual benchmarking for commercial buildings over 10,000 sq ft, with administrative penalties for buildings that fail to report.
More mixed residential buildings in San Francisco
- 500 TURK ST· 107,012 sq ft · score 86 (A)
- 805 LEAVENWORTH ST· 106,890 sq ft
- 240 DOLORES ST· 106,828 sq ft · score 97 (A)
- 1000 CHESTNUT ST· 106,786 sq ft · score 31 (D)
- 19 CLEMENTINA ST· 105,827 sq ft · score 100 (A)
- CA090_Ocean Ave Building 351· 105,728 sq ft · score 1 (D)
- Mixed Residential buildings in San Francisco· 610 benchmarked
- All San Francisco benchmarked buildings· SF Environment Code Chapter 20
- Most efficient large buildings in San Francisco
- Least efficient large buildings in San Francisco
- Biggest emitters in San Francisco
Frequently asked questions
What is City Heights Apts (aka Avalon Nob Hill)'s energy grade?
City Heights Apts (aka Avalon Nob Hill) scores 100 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2025 San Francisco disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does City Heights Apts (aka Avalon Nob Hill) use?
Its 2025 site energy-use intensity was 14.8 kBtu/ft² (41.5 kBtu/ft² source) across 107,900 sq ft, including 313,883 kWh of electricity.
What are City Heights Apts (aka Avalon Nob Hill)'s carbon emissions?
City Heights Apts (aka Avalon Nob Hill) reported 61 tCO₂e of greenhouse-gas emissions (0.8 kgCO₂e/ft²) for 2025.
Where is City Heights Apts (aka Avalon Nob Hill)?
City Heights Apts (aka Avalon Nob Hill) is at 840 POST ST, in San Francisco, California 94109. Its coordinates are 37.78778, -122.41594 (latitude, longitude), as published in the Existing Buildings Energy Performance Ordinance file.
How big is City Heights Apts (aka Avalon Nob Hill) and when was it built?
City Heights Apts (aka Avalon Nob Hill) has 107,900 sq ft of gross floor area, as reported in its 2025 disclosure. It is classed as mixed residential.
Is City Heights Apts (aka Avalon Nob Hill) covered by SF Environment Code Chapter 20?
Yes — it appears in the 2025 Existing Buildings Energy Performance Ordinance disclosure, which lists the buildings reporting under SF Environment Code Chapter 20.
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About this data
Source: Existing Buildings Energy Performance Ordinance (SF Environment Code Chapter 20), as published October 2, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “City Heights Apts (aka Avalon Nob Hill), San Francisco, California — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/san-francisco/city-heights-apts-aka-avalon-nob-hill-62035f43 (data as of October 2, 2026).