12000 AEROSPACE AVE
Office · Houston · 77034
At a glance
12000 AEROSPACE AVE in Houston, TX is listed on the Houston / Harris County property roll as “Office”, HCAD account 0451050000058. The roll records 87,415 sq ft of building area, a 1989 build year and an assessed value of $6,152,300. 9 active business locations at this address appear in public records.
Derived from suite and floor strings in the occupancy records
Which floors show activity
- 42 on record
- 3no record
- 21 on record
- 13 on record
Floors are read from suite numbers on Houston / Harris County business records (suite 4900 → floor 49). A floor with no record is not necessarily vacant — it may be mechanical, occupied by the owner, or let to a business whose receipt carries no suite. Receipts also lag reality by months. This shows where the public record places businesses, not a rent roll or an availability report. A stretch of quiet floors is not contiguous space for rent — it is contiguous silence in the record, which is the closest thing the public record has to that question and worth exactly what it costs to check.
Public record — 9 matched business locations
Tenants & business locations
| Company | Suite / floor | Since | Source | Match |
|---|---|---|---|---|
| AEROSPACE OPERATING ASSOCIATES, LIMITED PARTNERSHI | — | Aug 2026 | Texas sales-tax permit | address · medium |
| HEXA CONTAINMENT LLC | STE 115 | Jul 2026 | Texas sales-tax permit | address · medium |
| GLOBAL CLOUD EXPERTS, LLC | STE 106 | Jan 2026 | Texas sales-tax permit | address · medium |
| TOADFLY TECHNOLOGIES-12000 AER | — | Jan 2025 | Texas sales-tax permit | address · medium |
| TOADFLY TECHNOLOGIES, LLC | STE 106 | Jan 2023 | Texas sales-tax permit | address · medium |
| M-I L.L.C. | STE 425 | Jan 2020 | Texas sales-tax permit | address · medium |
| KLEINFELDER INC | STE 450 | Jan 2017 | Texas sales-tax permit | address · medium |
| INSPECTORATE AMERICA CORPORATION | STE 200 | Oct 2006 | Texas sales-tax permit | address · medium |
| L-CON--HOUSTON | — | Sep 2004 | Texas sales-tax permit | address · medium |
Houston / Harris County assessment roll
Parcel record
| Field | Value |
|---|---|
| HCAD account | 0451050000058 |
| Site address | 12000 AEROSPACE AVE |
| Land use (DOR) | F1 — Office |
| Building area (actual) | 87,415 sq ft |
| Floors / units / buildings | — / — / 1 |
| Lot size | — |
| Year built | 1989 |
| Zoning (primary) | — |
| Land value | — |
| Building value | — |
| Total assessed value | $6,152,300 |
Recorded owner (assessment roll)
AEROSPACE OPERATING ASSOCIATES ROSEMONT REALTY
Owner mailing address: 545 E JOHN CARPENTER FWY STE 1650, IRVING, TX, 75062
Location
- Address
- 12000 AEROSPACE AVE
- City
- Houston
- ZIP
- 77034
Within ~650 m
Nearby office buildings
No other office parcels within ~650 m.
How does 12000 AEROSPACE AVE compare with other Houston office buildings?
At 87,415 sq ft, 12000 AEROSPACE AVE is about 3 times the size of the average office building on the Houston / Harris County roll, which comes to 27,364 sq ft across 11,116 buildings.
Its assessed value works out to $70 per square foot of building area, against $161 across all office floor area on the roll.
What does “Office” mean for this parcel?
The Houston / Harris County roll classifies HCAD account 0451050000058 as “Office” (use code F1). 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 12000 AEROSPACE AVE?
The recorded owner on the Houston / Harris County assessment roll (current) is AEROSPACE OPERATING ASSOCIATES ROSEMONT REALTY. Owner mailing address on file: 545 E JOHN CARPENTER FWY STE 1650, IRVING, TX, 75062.
What companies have offices at 12000 AEROSPACE AVE?
9 active business locations at this building appear in Houston / Harris County public records, including AEROSPACE OPERATING ASSOCIATES, LIMITED PARTNERSHI, HEXA CONTAINMENT LLC, GLOBAL CLOUD EXPERTS, LLC, TOADFLY TECHNOLOGIES-12000 AER, TOADFLY TECHNOLOGIES, LLC. Public records under-count tenants that don't hold a local receipt or register the address.
How big is 12000 AEROSPACE AVE?
The Houston / Harris County roll records 87,415 sq ft of building area, a build year of 1989.
What is the assessed value of 12000 AEROSPACE AVE?
$6,152,300 on the Houston / Harris County roll. Assessed values are taxable-roll figures, not market prices.
What is the HCAD account for 12000 AEROSPACE AVE?
HCAD account 0451050000058, site address 12000 AEROSPACE AVE, Houston. It is the key to look the parcel up in the Harris Central Appraisal District bulk CAMA files (Houston / Harris County).
More around 12000 AEROSPACE AVE
- Houston / Harris County office buildings· 11,116 buildings
- AEROSPACE OPERATING ASSOCIATES, LIMITED PARTNERSHI· tenant on record
- HEXA CONTAINMENT LLC· suite STE 115
- GLOBAL CLOUD EXPERTS, LLC· suite STE 106
- TOADFLY TECHNOLOGIES-12000 AER· tenant on record
- Federal office leases in TX
- Office census — all metros
Everything here comes from public records, and public records go stale. If you know better, say so.
Data provenance — public records only
- Houston / Harris County — Harris Central Appraisal District bulk CAMA files (owner names, mailing addresses, appraised values, and per-building net rentable area — data most counties never publish). Texas is a non-disclosure state, so no sale prices exist in any public record, and Houston issues no universal business licence, so no tenant layer is possible. A partial tenant layer comes from the Texas Comptroller's active sales-tax permit roll: suite-level business locations, but only firms with taxable sales — professional services without them do not appear.
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: Houston / Harris County assessment roll, HCAD account 0451050000058.
About this data
Source: Harris Central Appraisal District bulk CAMA files (Houston / Harris County), as published September 20, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “12000 AEROSPACE AVE, Houston, TX (HCAD account 0451050000058)”, https://buildingcensus.com/offices/houston/office-building-d4b71ccb (data as of September 20, 2026).