300 E 9TH AVE
Commercial-Office · Denver · 80203
At a glance
300 E 9TH AVE in Denver, CO is listed on the Denver property roll as “Commercial-Office”, schedule number 0503823001000. The roll records 17,328 sq ft of building area, 2 floors, a 1957 build year and an assessed value of $4,268,300. It last sold for $2,700,000 in Jun 2026.
Recorded transfers — county roll + state sale file
Sale history
| Recorded | Price | Qualification | Source | Instrument |
|---|---|---|---|---|
| Jun 2026 | $2,700,000 | not rated | County roll | — |
Prices are the consideration recorded in Denver's public property records. Where a qualification code exists it is the assessor's judgement of whether a transfer was arm's length; transfers without one appear unrated rather than assumed clean. Whether a building is on the market today, and at what price, is not a public record and is not shown here — asking prices, listings and lease terms live in private commercial databases.
Denver assessment roll
Parcel record
| Field | Value |
|---|---|
| schedule number | 0503823001000 |
| Site address | 300 E 9TH AVE |
| Land use (DOR) | 301 — Commercial-Office |
| Building area (actual) | 17,328 sq ft |
| Floors / units / buildings | 2 / — / — |
| Lot size | 18,750 sq ft |
| Year built | 1957 |
| Zoning (primary) | — |
| Land value | $2,625,000 |
| Building value | — |
| Total assessed value | $4,268,300 |
Recorded owner (assessment roll)
DENVER JUSTICE HIGH SCHOOL BUILDING CORPORATION
Owner mailing address: 300 E 9TH AVE, DENVER, CO, 80203
Location
- Address
- 300 E 9TH AVE
- City
- Denver
- ZIP
- 80203
Within ~650 m
Nearby office buildings
No other office parcels within ~650 m.
How does 300 E 9TH AVE compare with other Denver office buildings?
At 17,328 sq ft, 300 E 9TH AVE is about 66% smaller than the average office building on the Denver roll, which comes to 51,722 sq ft across 2,022 buildings.
Its assessed value works out to $246 per square foot of building area, against $207 across all office floor area on the roll.
The last recorded sale priced it at $156 per square foot.
What has happened at 300 E 9TH AVE recently?
1 recorded transfer is on file for this parcel, the latest dated Jun 2026.
What does “Commercial-Office” mean for this parcel?
The Denver roll classifies schedule number 0503823001000 as “Commercial-Office” (use code 301). BuildingCensus includes a parcel in its office census when the roll gives it an office-class use, so the label is the county's, not an inference.
Frequently asked questions
Who owns 300 E 9TH AVE?
The recorded owner on the Denver assessment roll (current) is DENVER JUSTICE HIGH SCHOOL BUILDING CORPORATION. Owner mailing address on file: 300 E 9TH AVE, DENVER, CO, 80203.
How big is 300 E 9TH AVE?
The Denver roll records 17,328 sq ft of building area, 2 floors, a build year of 1957. It sits on a 18,750 sq ft lot.
What is the assessed value of 300 E 9TH AVE?
$4,268,300 on the Denver roll. Assessed values are taxable-roll figures, not market prices.
When did 300 E 9TH AVE last sell?
The last recorded transfer was in Jun 2026 for $2,700,000 ($156 per square foot).
What is the schedule number for 300 E 9TH AVE?
Schedule number 0503823001000, site address 300 E 9TH AVE, Denver. It is the key to look the parcel up in the City and County of Denver open-data parcels (Denver).
More around 300 E 9TH AVE
Everything here comes from public records, and public records go stale. If you know better, say so.
Data provenance — public records only
- Denver — City and County of Denver open-data parcels (owner names, mailing addresses, office classes, commercial areas), the recorded sales and transfers table with prices and counterparties, and Energize Denver benchmarking. The city's licence roll covers regulated trades only and carries no premises addresses, so no tenant layer is possible.
Every fact on this page is drawn from the government records above — no listing sites, no scraped platforms, no third-party images. Facts from public records are uncopyrightable; each tenancy row carries its source and match confidence. Records can lag reality — a business-tax receipt or registration at an address is evidence of occupancy, not a lease confirmation.
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Dataset updated . Source: Denver assessment roll, schedule number 0503823001000.
About this data
Source: City and County of Denver open-data parcels (Denver), as published September 20, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “300 E 9TH AVE, Denver, CO (schedule number 0503823001000)”, https://buildingcensus.com/offices/denver/office-building-495265b5 (data as of September 20, 2026).