Embassy of the United Mexican States
View the architectural study
Interpretive architectural study of the catalogued property.
1911 Pennsylvania Avenue NW, Washington, DC
A modern office building encloses two retained Georgian house façades. Mexico moved its embassy here from 16th Street in 1989.
| Fact | Value | Basis and sources |
|---|---|---|
| Constructed | 1986 | verified; CAMA AYB 1986; the retained historic fronts predate the office building. EYB 1997 is effective age, not completion. |
| Acquired by Mexico | Not verified | unverified; Purchase year is documented for the Institute. Occupation does not establish acquisition for the other properties. |
| First diplomatic use | 1989 | verified; Mexico’s occupation of this property, not establishment of diplomatic relations. |
| Neighborhood | Foggy Bottom | verified; Geographic neighborhood; tax-assessment names can differ. |
| Architect | Peter Vercelli | verified |
| Rooms | 95–230 est. | estimated; Planning estimate: rooms = building area × room-area fraction ÷ average room size. For this office property, assume 45%–65% of the recorded 87,620 sq ft is enclosed usable room area, with an average 250–400 sq ft per room. The range combines the low fraction with the larger room size and the high fraction with the smaller size, rounded outward to five rooms. Room allocation and average size are assumptions. Covers the recorded building area; the interior has not been independently measured. Estimated room range. |
| Floor area | 87,600 sq ft | verified; Recorded DC gross building area; the Institute record includes its associated building sections. |
| Site area | 7,600 sq ft | verified; LANDAREA for one owned parcel 0118 0031. No streets or neighboring properties included. |
| 2026 Value | $53.3M | verified; Current DC ASSESSMENT, CY1YEAR 2026; land plus improvements. Current tax assessment. |
Scope and Evidence
CAMA AYB 1986; the retained historic fronts predate the office building. EYB 1997 is effective age, not completion.
DC tax valuation.
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Research Questions
Where Is Embassy of the United Mexican States?
1911 Pennsylvania Avenue NW, Washington, DC. Approximate property center from DC parcel and building geometry.
When Was Embassy of the United Mexican States Built?
Constructed: 1986. Record status: verified. CAMA AYB 1986; the retained historic fronts predate the office building. EYB 1997 is effective age, not completion. Verified in the record on 2026-10-25.
Who Designed Embassy of the United Mexican States?
Architect: Peter Vercelli. Record status: verified. Verified in the record on 2026-10-25.
What Is the Floor Area of Embassy of the United Mexican States?
Floor area: 87,600 sq ft. Record status: verified. Recorded DC gross building area; the Institute record includes its associated building sections. Verified in the record on 2026-10-25.
What Is the Site Area of Embassy of the United Mexican States?
Site area: 7,600 sq ft. Record status: verified. LANDAREA for one owned parcel 0118 0031. No streets or neighboring properties included. Verified in the record on 2026-10-25.
What Is the 2026 Value of Embassy of the United Mexican States?
2026 Value: $53.3M. Record status: verified. Current DC ASSESSMENT, CY1YEAR 2026; land plus improvements. Current tax assessment. This is a tax assessment, not a verified sale price or market valuation. Verified in the record on 2026-10-25.