LAKESIDE AT LESCHI RESIDENTIAL CONDOMINIUM
Multifamily LR (1-4) in Seattle, WA · 121 LAKESIDE AVE · 98122
At a glance
LAKESIDE AT LESCHI RESIDENTIAL CONDOMINIUM is a 63,236-square-foot multifamily LR (1-4) building at 121 LAKESIDE AVE in Seattle, Washington, built in 1998. In its 2024 Seattle benchmarking disclosure it reported a site energy-use intensity of 31.6 kBtu/ft² and 12 tCO₂e of greenhouse-gas emissions.
Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 31.6 kBtu/ft² |
| Source EUI | 83.3 kBtu/ft² |
| GHG emissions | 12 tCO₂e |
| GHG intensity | 0.3 kgCO₂e/ft² |
| Electricity | 320,403 kWh |
| Natural gas | 1,141 therms |
| Gross floor area | 63,236 sq ft |
| Source record | seattle:26741:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 31.6 kBtu/ft² | 12 tCO₂e | |
| 2023 | — | 39.3 kBtu/ft² | 26 tCO₂e | |
| 2022 | — | — | 24 tCO₂e | |
| 2021 | — | — | 16 tCO₂e | |
| 2020 | — | — | 8 tCO₂e | |
| 2019 | — | 23.2 kBtu/ft² | 13 tCO₂e | |
| 2018 | — | 26.6 kBtu/ft² | 28 tCO₂e | |
| 2017 | — | 31.9 kBtu/ft² | 41 tCO₂e | |
| 2016 | 78 | +4 | 30.4 kBtu/ft² | 36 tCO₂e |
| 2015 | 74 | 30.2 kBtu/ft² | 31 tCO₂e |
Compliance context
Seattle Energy Benchmarking Ordinance (SMC 22.920)
Seattle's Building Emissions Performance Standard (adopted 2023) applies to buildings over 20,000 sq ft: benchmarking verification is due 2027–2030 and initial emissions targets 2031–2035, reaching net zero by 2041–2050, with fines for non-compliance.
Ownership
No owning organisation shown. Names of private individuals in the disclosure are not published here.
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Location
- Address
- 121 LAKESIDE AVE
- City
- Seattle
- State
- Washington
- ZIP
- 98122
- Coordinates
- 47.60238, -122.28544
Within ~1 km
Nearby benchmarked buildings
- Leschi Lake Centerscore —
Office · 75,868 sq ft
- Avana On The Lakescore 98
Multifamily Housing · 72,566 sq ft
K-12 School · 55,353 sq ft
Multifamily Housing · 33,331 sq ft
- Trinity Shores Aptsscore 96
Multifamily Housing · 25,966 sq ft
- The Pier At Leschiscore 92
Multifamily Housing · 23,856 sq ft
See also: most efficient in Seattle · biggest emitters
How does LAKESIDE AT LESCHI RESIDENTIAL CONDOMINIUM compare with other multifamily LR (1-4) buildings in Seattle?
The latest disclosures cover 53 multifamily LR (1-4) buildings in Seattle, out of 3,871 buildings citywide. Its site EUI of 31.6 kBtu/ft² is about 21% below the average of 40.1 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 0.3 kgCO₂e/ft² is about 64% below the group average of 0.9 kgCO₂e/ft².
At 63,236 sq ft, it is about 38% above the average floor area of 45,933 sq ft for those buildings. It was built in 1998, 22 years later than the group's average year built (1976).
How has LAKESIDE AT LESCHI RESIDENTIAL CONDOMINIUM's energy performance changed over time?
BuildingCensus holds 10 Seattle disclosures for LAKESIDE AT LESCHI RESIDENTIAL CONDOMINIUM, covering report years 2015–2024. Its ENERGY STAR score went from 74 in 2015 to 78 in 2016 (+4 points). Site EUI moved from 30.2 kBtu/ft² (2015) to 31.6 kBtu/ft² (2024), an 5% increase. Reported emissions went from 31 tCO₂e to 12 tCO₂e over the same span (down 60%).
What does a site EUI of 31.6 kBtu/ft² mean?
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. LAKESIDE AT LESCHI RESIDENTIAL CONDOMINIUM's 31.6 kBtu/ft² across 63,236 sq ft works out to about 2 billion Btu (586 MWh-equivalent) in 2024. Its source EUI of 83.3 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 320,403 kWh of electricity and 1,141 therms of natural gas for the year.
Which law requires LAKESIDE AT LESCHI RESIDENTIAL CONDOMINIUM to report its energy use?
LAKESIDE AT LESCHI RESIDENTIAL CONDOMINIUM reports under the Seattle Energy Benchmarking Ordinance (SMC 22.920), the legal basis of Seattle's Building Energy Benchmarking program, which publishes each covered building's annual benchmarking results. The record shown here is the report-year 2024 disclosure (source record seattle:26741:2024). Seattle's Building Emissions Performance Standard (adopted 2023) applies to buildings over 20,000 sq ft: benchmarking verification is due 2027–2030 and initial emissions targets 2031–2035, reaching net zero by 2041–2050, with fines for non-compliance.
More multifamily LR (1-4) buildings in Seattle
- MADISON APTS- FIRE/WILL BE DEMO'D· 54,770 sq ft · score 3 (D)
- 100 ROY ST APTS - DEMOLISHED· 53,280 sq ft · score 81 (B)
- LAM-BOWS APTS (demolished - new building ID#24163)· 46,986 sq ft · EUI 24.1 kBtu/ft²
- The 8501 Condominiums· 45,421 sq ft
- DEVONSHIRE APTS- Demo'd 2023· 44,736 sq ft · score 24 (D)
- NOBA APARTMENTS· 43,998 sq ft · score 98 (A)
- Multifamily LR (1-4) buildings in Seattle· 53 benchmarked
- All Seattle benchmarked buildings· Seattle Energy Benchmarking Ordinance (SMC 22.920)
- Most efficient large buildings in Seattle
- Least efficient large buildings in Seattle
- Biggest emitters in Seattle
Frequently asked questions
What is LAKESIDE AT LESCHI RESIDENTIAL CONDOMINIUM's energy grade?
LAKESIDE AT LESCHI RESIDENTIAL CONDOMINIUM did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 31.6 kBtu/ft².
How much energy does LAKESIDE AT LESCHI RESIDENTIAL CONDOMINIUM use?
Its 2024 site energy-use intensity was 31.6 kBtu/ft² (83.3 kBtu/ft² source) across 63,236 sq ft, including 320,403 kWh of electricity and 1,141 therms of natural gas.
What are LAKESIDE AT LESCHI RESIDENTIAL CONDOMINIUM's carbon emissions?
LAKESIDE AT LESCHI RESIDENTIAL CONDOMINIUM reported 12 tCO₂e of greenhouse-gas emissions (0.3 kgCO₂e/ft²) for 2024.
Where is LAKESIDE AT LESCHI RESIDENTIAL CONDOMINIUM?
LAKESIDE AT LESCHI RESIDENTIAL CONDOMINIUM is at 121 LAKESIDE AVE, in Seattle, Washington 98122. Its coordinates are 47.60238, -122.28544 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is LAKESIDE AT LESCHI RESIDENTIAL CONDOMINIUM and when was it built?
LAKESIDE AT LESCHI RESIDENTIAL CONDOMINIUM has 63,236 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1998 as its year built. It is classed as multifamily LR (1-4).
Is LAKESIDE AT LESCHI RESIDENTIAL CONDOMINIUM covered by the Seattle Energy Benchmarking Ordinance (SMC 22.920)?
Yes — it appears in the 2024 Building Energy Benchmarking disclosure, which lists the buildings reporting under the Seattle Energy Benchmarking Ordinance (SMC 22.920).
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About this data
Source: Building Energy Benchmarking (Seattle Energy Benchmarking Ordinance (SMC 22.920)), as published October 2, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “LAKESIDE AT LESCHI RESIDENTIAL CONDOMINIUM, Seattle, Washington — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/lakeside-at-leschi-residential-condominium-1829f479 (data as of October 2, 2026).