Regency Plaza One
Commercial-Office · Denver · 80237 · 4643 S ULSTER ST
At a glance
Regency Plaza One (4643 S ULSTER ST) in Denver, CO is listed on the Denver property roll as “Commercial-Office”, schedule number 0709300068000. The roll records 359,561 sq ft of building area, 15 floors, a 1985 build year and an assessed value of $37,562,900. It last sold for $71,250,000 in Sep 2019.
Recorded transfers — county roll + state sale file
Sale history
| Recorded | Price | Qualification | Source | Instrument |
|---|---|---|---|---|
| Sep 2019 | $71,250,000 | 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 | 0709300068000 |
| Site address | 4643 S ULSTER ST |
| Land use (DOR) | 304 — Commercial-Office |
| Building area (actual) | 359,561 sq ft |
| Floors / units / buildings | 15 / — / — |
| Lot size | 99,129 sq ft |
| Year built | 1985 |
| Zoning (primary) | — |
| Land value | $5,947,700 |
| Building value | — |
| Total assessed value | $37,562,900 |
Recorded owner (assessment roll)
GPI REGENCY LP
Owner mailing address: 5601 GRANITE PKWY STE 1200, PLANO, TX, 75024
9 Denver office properties share this owner mailing address →
Commercial property is usually held one building per entity; a shared mailbox is how the roll reveals a portfolio. It is evidence of common ownership, not proof.
Location
- Address
- 4643 S ULSTER ST
- City
- Denver
- ZIP
- 80237
Within ~650 m
Nearby office buildings
No other office parcels within ~650 m.
How does Regency Plaza One compare with other Denver office buildings?
At 359,561 sq ft, Regency Plaza One is about 7 times the size of the average office building on the Denver roll, which comes to 51,722 sq ft across 2,022 buildings.
With 15 floors it is one of 112 office buildings of ten or more floors in the metro.
Its assessed value works out to $104 per square foot of building area, against $207 across all office floor area on the roll.
The last recorded sale priced it at $198 per square foot.
Does the owner of Regency Plaza One hold other Denver office property?
9 Denver office properties (9 parcels, 3.3M sq ft) are recorded to 7 owner entities sharing this parcel's tax-bill mailing address. A shared mailing address is evidence of common ownership, not proof of it.
What has happened at Regency Plaza One recently?
1 recorded transfer is on file for this parcel, the latest dated Sep 2019.
What does “Commercial-Office” mean for this parcel?
The Denver roll classifies schedule number 0709300068000 as “Commercial-Office” (use code 304). 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 Regency Plaza One?
The recorded owner on the Denver assessment roll (current) is GPI REGENCY LP. Owner mailing address on file: 5601 GRANITE PKWY STE 1200, PLANO, TX, 75024.
How big is Regency Plaza One?
The Denver roll records 359,561 sq ft of building area, 15 floors, a build year of 1985. It sits on a 99,129 sq ft lot.
What is the assessed value of Regency Plaza One?
$37,562,900 on the Denver roll. Assessed values are taxable-roll figures, not market prices.
When did Regency Plaza One last sell?
The last recorded transfer was in Sep 2019 for $71,250,000 ($198 per square foot).
What is the schedule number for Regency Plaza One?
Schedule number 0709300068000, site address 4643 S ULSTER ST, Denver. It is the key to look the parcel up in the City and County of Denver open-data parcels (Denver).
More around Regency Plaza One
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 0709300068000.
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, “Regency Plaza One, Denver, CO (schedule number 0709300068000)”, https://buildingcensus.com/offices/denver/regency-plaza-one-b44becb3 (data as of September 20, 2026).