At a glance
Cornerstone Plaza 6170 is a 40,272-square-foot office building at 6170 Cornerstone Ct E in San Diego, California, built in 1986. In its 2022 San Diego benchmarking disclosure it reported an ENERGY STAR score of 87 out of 100 (grade A) and a site energy-use intensity of 22.6 kBtu/ft². That score is higher than 59% of the 259 scored office buildings in San Diego.
Building Energy Benchmarking Ordinance (SDMC Ch. 14 Art. 12) · reporting year 2022
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 87 (band A) |
| Site EUI | 22.6 kBtu/ft² |
| Source EUI | — |
| GHG emissions | — |
| GHG intensity | — |
| Gross floor area | 40,272 sq ft |
| Source record | san_diego:102204:2022 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2022latest | 87 | 22.6 kBtu/ft² | — | |
| 2021 | — | 28.0 kBtu/ft² | — |
Compliance context
Building Energy Benchmarking Ordinance (SDMC Ch. 14 Art. 12)
San Diego's ordinance requires annual benchmarking for commercial buildings over 50,000 sq ft, with civil penalties for buildings that fail to report.
Ownership
No owning organisation shown. Names of private individuals in the disclosure are not published here.
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Location
- Address
- 6170 Cornerstone Ct E
- City
- San Diego
- State
- California
Within ~1 km
Nearby benchmarked buildings
This source publishes no coordinates, so nearby buildings can't be resolved yet.
See also: most efficient in San Diego · biggest emitters
How does Cornerstone Plaza 6170 compare with other office buildings in San Diego?
The latest disclosures cover 356 office buildings in San Diego, out of 2,567 buildings citywide. Cornerstone Plaza 6170's ENERGY STAR score of 87 compares with an average of 75 across the 259 that report a score; it scores higher than 59% of them and lower than 39%. Its site EUI of 22.6 kBtu/ft² is about 58% below the average of 54.4 kBtu/ft² — it uses less energy per square foot than the typical building in that group.
At 40,272 sq ft, it is about 69% below the average floor area of 130,949 sq ft for those buildings. It was built in 1986, 5 years earlier than the group's average year built (1991). Across all 24 jurisdictions BuildingCensus covers, the 15,264 office buildings average an ENERGY STAR score of 73 and a site EUI of 59.3 kBtu/ft².
How has Cornerstone Plaza 6170's energy performance changed over time?
BuildingCensus holds 2 San Diego disclosures for Cornerstone Plaza 6170, covering report years 2021–2022. Site EUI moved from 28.0 kBtu/ft² (2021) to 22.6 kBtu/ft² (2022), a 19% decrease.
What does an ENERGY STAR score of 87 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: a score of 87 means the building performs better than about 87% of its national peers. BuildingCensus bands the score into report-card grades; 87 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 Diego, 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. Cornerstone Plaza 6170's 22.6 kBtu/ft² across 40,272 sq ft works out to about 0.9 billion Btu (267 MWh-equivalent) in 2022.
Which law requires Cornerstone Plaza 6170 to report its energy use?
Cornerstone Plaza 6170 reports under the Building Energy Benchmarking Ordinance (SDMC Ch. 14 Art. 12), the legal basis of San Diego's Building Energy Benchmarking program, which publishes each covered building's annual benchmarking results. The record shown here is the report-year 2022 disclosure (source record san_diego:102204:2022). San Diego's ordinance requires annual benchmarking for commercial buildings over 50,000 sq ft, with civil penalties for buildings that fail to report.
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- Office buildings in San Diego· 356 benchmarked
- All San Diego benchmarked buildings· Building Energy Benchmarking Ordinance (SDMC Ch. 14 Art. 12)
- Most efficient large buildings in San Diego
- Least efficient large buildings in San Diego
- Biggest emitters in San Diego
Frequently asked questions
What is Cornerstone Plaza 6170's energy grade?
Cornerstone Plaza 6170 scores 87 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2022 San Diego disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Cornerstone Plaza 6170 use?
Its 2022 site energy-use intensity was 22.6 kBtu/ft² across 40,272 sq ft.
What are Cornerstone Plaza 6170's carbon emissions?
No greenhouse-gas emissions figure was reported for 2022.
Where is Cornerstone Plaza 6170?
Cornerstone Plaza 6170 is at 6170 Cornerstone Ct E, in San Diego, California.
How big is Cornerstone Plaza 6170 and when was it built?
Cornerstone Plaza 6170 has 40,272 sq ft of gross floor area, as reported in its 2022 disclosure. The disclosure lists 1986 as its year built. It is classed as office.
Is Cornerstone Plaza 6170 covered by the Building Energy Benchmarking Ordinance (SDMC Ch. 14 Art. 12)?
Yes — it appears in the 2022 Building Energy Benchmarking disclosure, which lists the buildings reporting under the Building Energy Benchmarking Ordinance (SDMC Ch. 14 Art. 12).
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About this data
Source: Building Energy Benchmarking (Building Energy Benchmarking Ordinance (SDMC Ch. 14 Art. 12)), as published July 9, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “Cornerstone Plaza 6170, San Diego, California — 2022 benchmarking disclosure”, https://buildingcensus.com/buildings/san-diego/cornerstone-plaza-6170-d9c6e21b (data as of July 9, 2026).