BuildingCensus

999 3RD AVE

Office · Seattle · 98104

Active records here
62
business-tax + registry entities
Building area
1,325,986
sq ft (county roll)
Floors
47
county roll
Year built
1983
vintage
Assessed value
$225M
current roll
Assessed / sq ft
$170
assessed value per sq ft
Last sold
—
no transfer on record
Sale / sq ft
—
not derivable from the record

Derived from suite and floor strings in the occupancy records

Which floors show activity

19 of 47 floors show activityfrom 53 suite-numbered receipts

Floors 41-44 show no business on record — 4 unbroken floors, the longest such stretch here. Also quiet: 3-5, 8-10, 12-14, 20-21, 23-24, 31-32, 35-36. That is where the public record shows nobody, in blocks — a place to start asking, not a listing.

  1. 472 on record
  2. 46no record
  3. 455 on record
  4. 44no record
  5. 43no record
  6. 42no record
  7. 41no record
  8. 401 on record
  9. 391 on record
  10. 38no record
  11. 371 on record
  12. 36no record
  13. 35no record
  14. 342 on record
  15. 339 on record
  16. 32no record
  17. 31no record
  18. 303 on record
  19. 29no record
  20. 286 on record
  21. 27no record
  22. 261 on record
  23. 251 on record
  24. 24no record
  25. 23no record
  26. 221 on record
  27. 21no record
  28. 20no record
  29. 191 on record
  30. 18no record
  31. 171 on record
  32. 16no record
  33. 153 on record
  34. 14no record
  35. 13no record
  36. 12no record
  37. 111 on record
  38. 10no record
  39. 9no record
  40. 8no record
  41. 711 on record
  42. 61 on record
  43. 5no record
  44. 4no record
  45. 3no record
  46. 22 on record
  47. 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.

Federal lease inventory — actual rent paid

Leases on public record

LeaseRentable sq ftAnnual rent$/sq ftTermOptions left
LWA07456—$543,022—Sep 2014 → Sep 2034—

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.

Public record — 62 matched business locations

Tenants & business locations

CompanySuite / floorSinceSourceMatch
CLEARSTEAD ADVISORS LLC# 3050Feb 2026sea_licaddress · medium
LEGATE LLP# 700Jan 2025sea_licaddress · medium
ROY R DEAVER PS# 2800Jan 2025sea_licaddress · medium
DENA A HERBOLICH PS# 2800Jan 2025sea_licaddress · medium
DAN G. EVANS, P.S.# 2800Jan 2025sea_licaddress · medium
MARKE C GREENE PS# 2800Jan 2025sea_licaddress · medium
LIMINARY INC# 3300Oct 2024sea_licaddress · medium
NEWDAYS# 33May 2024sea_licaddress · medium
MAGNETIC MEDIA# 700Feb 2024sea_licaddress · medium
FENNEMORE CRAIG PC# 600Feb 2024sea_licaddress · medium
CODIFIED INC# 3300Jul 2023sea_licaddress · medium
DONBURI HOUSE# 201Jul 2023sea_licaddress · medium
ASIA SOCIETY NORTHERN CALIFORNIA# 700May 2023sea_licaddress · medium
N234AW LLC# 3050Mar 2023sea_licaddress · medium
SANDPIPER VIDEO# 700Jan 2023sea_licaddress · medium
ZAGARAN INC# 700Jan 2022sea_licaddress · medium
OPALA# 2650Nov 2021sea_licaddress · medium
READ AI INC# 3300Mar 2021sea_licaddress · medium
OUTLIFT AI INC# 3300Mar 2021sea_licaddress · medium
STRIKE GRAPH# 33Mar 2020sea_licaddress · medium
WHYLABS# 3300Jan 2020sea_licaddress · medium
SEYFARTH SHAW LLP# 4700Nov 2019sea_licaddress · medium
GREATER SEATTLE PARTNERS# 3300Aug 2018sea_licaddress · medium
PROJEKT202 LLC# 1501Jul 2018sea_licaddress · medium
PUGET SOUND BUSINESS JOURNAL# 1530Jan 2018sea_licaddress · medium
PACIFIC CM# 700Feb 2017sea_licaddress · medium
WELLS FARGO BANK NATIONAL ASSOCIATION# 40FLJan 2017sea_licaddress · medium
AEROSTRAT# 700Jan 2016sea_licaddress · medium
SOMERS TAMBLYN PLLC# 3760Jan 2016sea_licaddress · medium
MADRONA VENTURE LABS INC# 33Oct 2015sea_licaddress · medium
THE CLARIUS GROUP LLC# 3050Apr 2015sea_licaddress · medium
COBIA SYSTEMS INC# 700Sep 2014sea_licaddress · medium
BAKERHOSTETLER# 3900Jan 2014sea_licaddress · medium
TIGERIT AMERICAS LLC# 700Nov 2013sea_licaddress · medium
ACE PARKING 3264 WELLS FARGO GARAGE—Oct 2013sea_licaddress · medium
JINTRONIX INC# 3400Jul 2013sea_licaddress · medium
Jones Lang LaSalle Americas, Inc.via JONES LANG LASALLE AMERICAS INC—Jun 2013sea_licaddress · medium
180 HOLDINGS LLC# 4550Feb 2013sea_licaddress · medium
PAYCOM PAYROLL LLC# 1510Jan 2013sea_licaddress · medium
EASTDIL SECURED—Aug 2012sea_licaddress · medium
SURF INCUBATOR LLC# STE 700Apr 2012sea_licaddress · medium
TRUCUP COFFEE# 4550Jan 2012sea_licaddress · medium
TWIST TRAVEL# 4550Nov 2010sea_licaddress · medium
ONE EIGHTY FOUNDATION# 4550Sep 2010sea_licaddress · medium
WELLS FARGO BANK NA# FL 47May 2010sea_licaddress · medium
WELLS FARGO SECURITIES# FL 11Nov 2009sea_licaddress · medium
ANDREW SHAFER—Feb 2009sea_licaddress · medium
TRS RECOVERY SERVICES INC# 2525Feb 2009sea_licaddress · medium
HOMEGROWN# 2Mar 2008sea_licaddress · medium
BOOK RAGS# 700Feb 2008sea_licaddress · medium
LEISURE CARE# 4550Mar 2006sea_licaddress · medium
MOSS ADAMS WEALTH ADVISORS LLC# 2800Feb 2005sea_licaddress · medium
WELLS FARGO CLEARING SERVICES LLC—Jun 2003sea_licaddress · medium
DOCUSIGN# 1700Apr 2003sea_licaddress · medium
TORREY TERRYL—Jan 2003sea_licaddress · medium
STARBUCKS COFFEE 3347—Jan 2001sea_licaddress · medium
MADRONA VENTURE MANAGEMENT LLC# 3400Nov 1999sea_licaddress · medium
MOSS ADAMS LLP# 2800Oct 1996sea_licaddress · medium
HDR ENGINEERING# 2220May 1992sea_licaddress · medium
PETERS FIRST INTERSTATE FLOWERS—May 1989sea_licaddress · medium
COZEN OCONNOR INC# 1900Jul 1985sea_licaddress · medium
HILLIS CLARK MARTIN ET AL4600Oct 1971sea_licaddress · medium

Seattle / King County assessment roll

Parcel record

FieldValue
parcel (major-minor)0939000435
Site address999 3RD AVE
Land use (DOR) — Office
Building area (actual)1,325,986 sq ft
Floors / units / buildings47 / — / 1
Lot size—
Year built1983
Zoning (primary)—
Land value$90,240,000
Building value—
Total assessed value$224,971,000

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
999 3RD AVE
City
Seattle
ZIP
98104

Within ~650 m

Nearby office buildings

No other office parcels within ~650 m.

Frequently asked questions

Who owns 999 3RD 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 999 3RD AVE?

62 active business locations at this building appear in Seattle / King County public records, including CLEARSTEAD ADVISORS LLC, LEGATE LLP, ROY R DEAVER PS, DENA A HERBOLICH PS, DAN G. EVANS, P.S.. Public records under-count tenants that don't hold a local receipt or register the address.

How big is 999 3RD AVE?

The county assessment roll records 1,325,986 sq ft of building area across 47 floors, built in 1983, on a — lot, with a current assessed value of $224,971,000.

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.

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Dataset updated . Source: Seattle / King County assessment roll, parcel (major-minor) 0939000435.