BuildingCensus
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5520 WESTLAWN AVE

Office in Los Angeles, CA · 90066

At a glance

5520 WESTLAWN AVE is a 37,348-square-foot office building in Los Angeles, California, built in 1969. In its 2025 Los Angeles benchmarking disclosure it reported an ENERGY STAR score of 100 out of 100 (grade A), a site energy-use intensity of 5.3 kBtu/ft² and 11 tCO₂e of greenhouse-gas emissions. That score is higher than 90% of the 591 scored office buildings in Los Angeles.

ENERGY STAR score
100
band A · 2025
Site EUI
5.3
kBtu/ft²
GHG emissions
11
tCO₂e
GHG intensity
—
kgCO₂e/ft²
Floor area
37,348
sq ft
Year built
1969
vintage

LA Municipal Code Div. 97, §91.9701 (EBEWE) · reporting year 2025

Benchmarking record

FieldValue
ENERGY STAR score100 (band A)
Site EUI5.3 kBtu/ft²
Source EUI14.8 kBtu/ft²
GHG emissions11 tCO₂e
GHG intensity—
Water use86 kgal
Gross floor area37,348 sq ft
Source recordla:436093815691:2025

The disclosure history

Year over year

YearScoreΔSite EUIGHG emissions
2025latest100+315.3 kBtu/ft²11 tCO₂e
202469+3325.4 kBtu/ft²63 tCO₂e
202336-2036.5 kBtu/ft²96 tCO₂e
202256+2431.7 kBtu/ft²80 tCO₂e
20213244.2 kBtu/ft²99 tCO₂e
2020—43.8 kBtu/ft²106 tCO₂e
2019—53.1 kBtu/ft²135 tCO₂e
2018—52.6 kBtu/ft²135 tCO₂e

Compliance context

LA Municipal Code Div. 97, §91.9701 (EBEWE)

EBEWE requires annual benchmarking plus audits/retro-commissioning every five years for privately owned buildings of 20,000 sq ft or more; non-compliance carries a $202 fee (LAMC §91.9712) plus possible late fees.

Program details →

Ownership

Westport Realty, Inc.

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Location

Address
5520 WESTLAWN AVE
State
California
ZIP
90066

Within ~1 km

Nearby benchmarked buildings

This source publishes no coordinates, so nearby buildings can't be resolved yet.

See also: most efficient in Los Angeles · biggest emitters

How does 5520 WESTLAWN AVE compare with other office buildings in Los Angeles?

The latest disclosures cover 676 office buildings in Los Angeles, out of 11,498 buildings citywide. 5520 WESTLAWN AVE's ENERGY STAR score of 100 compares with an average of 77 across the 591 that report a score; it scores higher than 90% of them. Its site EUI of 5.3 kBtu/ft² is about 88% below the average of 44.3 kBtu/ft² — it uses less energy per square foot than the typical building in that group.

At 37,348 sq ft, it is about 75% below the average floor area of 147,328 sq ft for those buildings. It was built in 1969, 6 years earlier than the group's average year built (1975). 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 5520 WESTLAWN AVE's energy performance changed over time?

BuildingCensus holds 8 Los Angeles disclosures for 5520 WESTLAWN AVE, covering report years 2018–2025. Its ENERGY STAR score went from 32 in 2021 to 100 in 2025 (+68 points). Site EUI moved from 52.6 kBtu/ft² (2018) to 5.3 kBtu/ft² (2025), a 90% decrease. Reported emissions went from 135 tCO₂e to 11 tCO₂e over the same span (down 92%).

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 Los Angeles, 63% 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. 5520 WESTLAWN AVE's 5.3 kBtu/ft² across 37,348 sq ft works out to about 0.2 billion Btu (58 MWh-equivalent) in 2025. Its source EUI of 14.8 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 86 thousand gallons of water for the year.

Which law requires 5520 WESTLAWN AVE to report its energy use?

5520 WESTLAWN AVE reports under LA Municipal Code Div. 97, §91.9701 (EBEWE), the legal basis of Los Angeles's Existing Buildings Energy & Water Efficiency (EBEWE) program, which publishes each covered building's annual benchmarking results. The record shown here is the report-year 2025 disclosure (source record la:436093815691:2025). EBEWE requires annual benchmarking plus audits/retro-commissioning every five years for privately owned buildings of 20,000 sq ft or more; non-compliance carries a $202 fee (LAMC §91.9712) plus possible late fees.

More office buildings in Los Angeles

Frequently asked questions

What is 5520 WESTLAWN AVE's energy grade?

5520 WESTLAWN AVE scores 100 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2025 Los Angeles disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.

How much energy does 5520 WESTLAWN AVE use?

Its 2025 site energy-use intensity was 5.3 kBtu/ft² (14.8 kBtu/ft² source) across 37,348 sq ft.

What are 5520 WESTLAWN AVE's carbon emissions?

5520 WESTLAWN AVE reported 11 tCO₂e of greenhouse-gas emissions for 2025.

Where is 5520 WESTLAWN AVE?

5520 WESTLAWN AVE is in Los Angeles, California 90066.

How big is 5520 WESTLAWN AVE and when was it built?

5520 WESTLAWN AVE has 37,348 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 1969 as its year built. It is classed as office.

Is 5520 WESTLAWN AVE covered by LA Municipal Code Div. 97, §91.9701 (EBEWE)?

Yes — it appears in the 2025 Existing Buildings Energy & Water Efficiency (EBEWE) disclosure, which lists the buildings reporting under LA Municipal Code Div. 97, §91.9701 (EBEWE).

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About this data

Source: Existing Buildings Energy & Water Efficiency (EBEWE) (LA Municipal Code Div. 97, §91.9701 (EBEWE)), as published October 2, 2026. See the methodology for how records are matched, cleaned and scored.

Cite as: BuildingCensus, “5520 WESTLAWN AVE, Los Angeles, California — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/los-angeles/5520-westlawn-ave-02649f27 (data as of October 2, 2026).