BuildingCensus

1200 6TH AVE

Office · Seattle · 98101

Active records here
25
business-tax + registry entities
Building area
457,439
sq ft (county roll)
Floors
21
county roll
Year built
1971
vintage
Assessed value
$79.6M
current roll
Assessed / sq ft
$174
assessed value per sq ft
Last sold
$176.9M
Oct 2019
Sale / sq ft
$387
at the last recorded sale

Derived from suite and floor strings in the occupancy records

Which floors show activity

8 of 21 floors show activityfrom 22 suite-numbered receipts

Floors 10-17 show no business on record — 8 unbroken floors, the longest such stretch here. Also quiet: 19-21. That is where the public record shows nobody, in blocks — a place to start asking, not a listing.

  1. 21no record
  2. 20no record
  3. 19no record
  4. 182 on record
  5. 17no record
  6. 16no record
  7. 15no record
  8. 14no record
  9. 13no record
  10. 12no record
  11. 11no record
  12. 10no record
  13. 91 on record
  14. 810 on record
  15. 71 on record
  16. 62 on record
  17. 51 on record
  18. 4no record
  19. 34 on record
  20. 21 on record
  21. 1no record

Floors are read from suite numbers on Miami-Dade business-tax receipts (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.

The building's own benchmarking filing

Energy performance

ENERGY STAR score
72
of 100 nationally
Site energy use
52.6
kBtu per sq ft per year
Reported emissions
107
tonnes CO₂e
Disclosed area
456,304
sq ft, 2025 filing

From the building's own filing under the City of Miami's benchmarking ordinance. An ENERGY STAR score of 75 or above means the building outperforms three quarters of comparable buildings nationally. It is a self-reported figure, verified by the city only to the extent the ordinance requires.

Federal lease inventory — actual rent paid

Leases on public record

LeaseRentable sq ftAnnual rent$/sq ftTermOptions left
LWA002894,855$335,249$69.05Aug 2021 → Jul 20312 · 10yr
LWA07038155,285$8,712,919$56.11May 2015 → Apr 2030—

From the General Services Administration's monthly lease inventory: the rent the federal government actually pays, the square feet behind it, the dates, and the renewal options remaining. A fully serviced lease includes services and utilities, so it is not comparable to a net rent. This is one tenant, not the market. Federal space is often fitted for a specific agency and leased on government terms, so treat it as a real, checkable data point rather than an asking rent for the building.

Recorded transfers — county roll + state sale file

Sale history

RecordedPriceQualificationSourceInstrument
Oct 2019$176,868,000not ratedCounty roll—

Prices are the consideration the documentary stamps indicate, as recorded by Miami-Dade County. A qualification code is the property appraiser's judgement of whether a transfer was arm's length; the state publishes it only for the current roll period, so older transfers 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.

Public record — 25 matched business locations

Tenants & business locations

CompanySuite / floorSinceSourceMatch
FB LAW# 850Aug 2023sea_licaddress · medium
S&K MISSION SUPPORT LLC—Jul 2023sea_licaddress · medium
HILLTOP CHILDRENS CENTER# 200Jul 2023sea_licaddress · medium
VERITEXT# 610Oct 2022sea_licaddress · medium
SEALASKA REMEDIATION SOLUTIONS LLC# 800Jul 2022sea_licaddress · medium
SEALASKA SECURE CONSTRUCTION SOLUTIONS LLC# 800Oct 2019sea_licaddress · medium
SEALASKA TECHNICAL SERVICES LLC# 800Sep 2019sea_licaddress · medium
SEALASKA ENGINEERING & APPLIED SCIENCES LLC# 800Apr 2018sea_licaddress · medium
CORNEAGEN INC# 300Oct 2016sea_licaddress · medium
SIGHTLIFE# 300Oct 2016sea_licaddress · medium
SEALASKA CONSTRUCTORS LLC# 800Jan 2016sea_licaddress · medium
SEALASKA ENVIRONMENTAL SERVICES LLC# 800Jan 2016sea_licaddress · medium
SEALASKA GOVERNMENT SERVICES# 800Jan 2016sea_licaddress · medium
ECODATA ANALYTICS LLC# 800Jan 2016sea_licaddress · medium
SEALASKA CONSTRUCTION SOLUTIONS LLC# 800Jan 2016sea_licaddress · medium
ACE PARKING 3278 PARK PLACE BUILDING—Mar 2008sea_licaddress · medium
ICF ENVIRONMENTAL, INCvia ICF ENVIRONMENTAL, INC.# 1800Feb 2008sea_licaddress · medium
VOXX COFFEE—Oct 2007sea_licaddress · medium
NORTHWEST LIONS ENDOWMENT# 300Mar 2006sea_licaddress · medium
LIONS WORLD VISION INSTITUTE# 300Nov 2001sea_licaddress · medium
Genslervia GENSLER# 500Oct 1999sea_licaddress · medium
MICROSTRATEGY# 1810Jan 1999sea_licaddress · medium
SOFTCHOICE CORP# 900Nov 1998sea_licaddress · medium
DONALD A CAMPBELL AND COMPANY# 600Oct 1997sea_licaddress · medium
WASHINGTON CAPITAL MANAGEMENT INC# 700Nov 1990sea_licaddress · medium

Seattle / King County assessment roll

Parcel record

FieldValue
parcel (major-minor)1976700185
Site address1200 6TH AVE
Land use (DOR) — Office
Building area (actual)457,439 sq ft
Floors / units / buildings21 / — / 1
Lot size—
Year built1971
Zoning (primary)—
Land value$37,150,300
Building value—
Total assessed value$79,593,900

Recorded owner (assessment roll)

No owning organisation shown. Where the county roll names a private individual, the name and mailing address are not published here.

Location

Address
1200 6TH AVE
City
Seattle
ZIP
98101

Within ~650 m

Nearby office buildings

No other office parcels within ~650 m.

Frequently asked questions

Who owns 1200 6TH AVE?

No owning organisation is shown for this parcel. Where the county roll names a private individual as owner, BuildingCensus does not publish the name or mailing address.

What companies have offices at 1200 6TH AVE?

25 active business locations at this building appear in Seattle / King County public records, including FB LAW, S&K MISSION SUPPORT LLC, HILLTOP CHILDRENS CENTER, VERITEXT, SEALASKA REMEDIATION SOLUTIONS LLC. Public records under-count tenants that don't hold a local receipt or register the address.

How big is 1200 6TH AVE?

The county assessment roll records 457,439 sq ft of building area across 21 floors, built in 1971, on a — lot, with a current assessed value of $79,593,900.

Everything here comes from public records, and public records go stale. If you know better, say so.

Data provenance — public records only

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.

Working with Seattle office parcels? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.

Dataset updated . Source: Seattle / King County assessment roll, parcel (major-minor) 1976700185.