CASA LADARO APTS BLDG #1
Multifamily LR (1-4) in Seattle, WA · 3535 27TH PL W · 98199
At a glance
CASA LADARO APTS BLDG #1 is a 23,705-square-foot multifamily LR (1-4) building at 3535 27TH PL W in Seattle, Washington, built in 1968. It is listed in the 2024 Building Energy Benchmarking disclosure without energy figures: no ENERGY STAR score, energy use or emissions were published for it that year. Its most recent reported figures are from 2023, when it scored 52 out of 100 on ENERGY STAR with a site EUI of 30.9 kBtu/ft².
No energy data reported for 2024
CASA LADARO APTS BLDG #1 appears in the 2024 Building Energy Benchmarking disclosure, but no ENERGY STAR score, energy use or emissions were published for it — the building did not report benchmarking data for that year. Earlier reported years are in the table below.
Floor area on file: 23,705 sq ft · Built 1968
Source record seattle:27685:2024
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | — | — | |
| 2023 | 52 | -7 | 30.9 kBtu/ft² | 8 tCO₂e |
| 2022 | 59 | -2 | 30.4 kBtu/ft² | 8 tCO₂e |
| 2021 | 61 | +5 | 29.5 kBtu/ft² | 7 tCO₂e |
| 2020 | 56 | +7 | 29.3 kBtu/ft² | 7 tCO₂e |
| 2019 | 49 | ±0 | 30.9 kBtu/ft² | 8 tCO₂e |
| 2018 | 49 | -24 | 30.6 kBtu/ft² | 8 tCO₂e |
| 2017 | 73 | +20 | 27.2 kBtu/ft² | 7 tCO₂e |
| 2016 | 53 | -9 | 27.5 kBtu/ft² | 7 tCO₂e |
| 2015 | 62 | 29.0 kBtu/ft² | 7 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
- 3535 27TH PL W
- City
- Seattle
- State
- Washington
- ZIP
- 98199
- Coordinates
- 47.65203, -122.39014
Within ~1 km
Nearby benchmarked buildings
- Quarterdeck Condominiumscore 58
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- Windy Hills Condominiumscore 99
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- Eldorado The Condominiumscore 100
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- Sea Marine And Fish Supply Coscore 61
Non-Refrigerated Warehouse · 56,259 sq ft
- Maggie, Thescore 82
Multifamily Housing · 56,104 sq ft
K-12 School · 54,986 sq ft
See also: most efficient in Seattle · biggest emitters
How has CASA LADARO APTS BLDG #1's energy performance changed over time?
BuildingCensus holds 10 Seattle disclosures for CASA LADARO APTS BLDG #1, covering report years 2015–2024. Its ENERGY STAR score went from 62 in 2015 to 52 in 2023 (-10 points); its best year on file was 2017, at 73. Site EUI moved from 29.0 kBtu/ft² (2015) to 30.9 kBtu/ft² (2023), an 7% increase. Reported emissions went from 7 tCO₂e to 8 tCO₂e over the same span (up 7%).
Which law requires CASA LADARO APTS BLDG #1 to report its energy use?
CASA LADARO APTS BLDG #1 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:27685:2024). 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
- CANAL PLACE· 23,466 sq ft · score 93 (A)
- SUNRAY APTS· 23,420 sq ft
- LAVENDER APARTMENTS· 22,156 sq ft · score 96 (A)
- INTERLAKE PLACE· 21,871 sq ft · EUI 45.2 kBtu/ft²
- 660 WEST OLYMPIC PLACE CONDOMINIUM· 21,754 sq ft · EUI 57.4 kBtu/ft²
- THUNDERBIRD APTS - EXEMPT· 21,596 sq ft · score 100 (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 CASA LADARO APTS BLDG #1's energy grade?
CASA LADARO APTS BLDG #1 has no grade: it did not report energy data for 2024. The 2024 Building Energy Benchmarking disclosure lists the building but publishes no ENERGY STAR score, energy use or emissions for it.
Where is CASA LADARO APTS BLDG #1?
CASA LADARO APTS BLDG #1 is at 3535 27TH PL W, in Seattle, Washington 98199. Its coordinates are 47.65203, -122.39014 (latitude, longitude), as published in the Building Energy Benchmarking file.
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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, “CASA LADARO APTS BLDG #1, Seattle, Washington — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/casa-ladaro-apts-bldg-1-3ebda5df (data as of October 2, 2026).