CHANCERIESTHE DIPLOMATIC ATLAS

Lothrop Mansion, Former Russian Trade Representation

2001 Connecticut Avenue NW, Washington, DC

A House Used by Successive Missions

Hornblower and Marshall designed the Lothrop Mansion for department store partner Alvin Lothrop in 1908–1909. It bore the number 2101 Connecticut Avenue before 1934. After Nathaniel Luttrell’s death in 1942, his heirs rented the house for office use. A Soviet attaché office was briefly associated with it in 1943; Canada’s Department of Defense Production leased it in 1954, and the Australian Joint Service Staff worked there in 1964–1966. [1]

An English language school followed before the Soviet Union bought the house in December 1975 for its trade mission. Soviet embassy offices occupied it when the National Register nomination was prepared in 1988. The Russian trade mission was listed here in 2000; in August 2017, the United States ordered the Washington trade mission closed by September 2. [1] [2] [3]

Diplomatic Use

Changes to the Property

  • Construction: 1908 to 1909 [1]
  • Property leased: Canada’s Department of Defense Production: 1954 [1]
  • Property acquired: Union of Soviet Socialist Republics: 1975-12 [1]
  • Trade mission closure ordered: 2017-08-31. The order set a deadline of 2 September 2017; physical departure was not independently verified. [3]

2001 Connecticut Ave NW, Washington, DC

FactValueBasis and sources
NeighborhoodKaloramaverified; DC assessment-neighborhood designation for the property.
  1. services.arcgis.com
Site area25,954 sq ftverified; Sum of LANDAREA for the identified, nonoverlapping tax parcels, in square feet.
  1. services.arcgis.com
2026 Value$20,172,840verified; Sum of current ASSESSMENT values for the identified parcels; CY1YEAR 2026 and DELCODE N. Includes land and improvements, not tax due or sale price.
  1. services.arcgis.com
Floor area14,957 sq ftverified; DC CAMA: residential GBA is gross building area; commercial/condominium LIVING_GBA is the recorded living gross building or unit area. 2536 0308 building 1 section 1: 14,957 sq ft (commercial)
  1. maps2.dcgis.dc.gov
Constructed1908–1909verified; The National Register nomination dates construction to 1908–1909 and records building permit 843, issued 2 September 1908. The numeric sort year is the end of the documented range. PDF pages 3–4.
  1. npgallery.nps.gov
Rooms40reported; The nomination reports a forty-room original design. PDF page 3, Section 7 description, construction, permit, architects and forty-room design; PDF page 4, Section 8 summary, construction range; PDF page 13, printed Section 8, page 5, twentieth-century occupancy and December 1975 acquisition This count describes the original design. The present room inventory remains unverified.
  1. npgallery.nps.gov
ArchitectHornblower and Marshallverified; The individual National Register nomination identifies Hornblower and Marshall as the architects. PDF page 3, Section 7 description, construction, permit, architects and forty-room design; PDF page 4, Section 8 summary, construction range; PDF page 13, printed Section 8, page 5, twentieth-century occupancy and December 1975 acquisition
  1. npgallery.nps.gov
Diplomatic use1943documented-by; The Soviet Office of the Attaché was briefly associated with the property in 1943. Subsequent occupants included Canada's Department of Defense Production, Australian Joint Service Staff, and an English-language school before the Soviet purchase. This is evidence of brief Soviet use by 1943, followed by other tenants; it is not the beginning of uninterrupted Soviet or Russian occupation. The USSR purchased the property in December 1975.
  1. npgallery.nps.gov

Scope and Evidence

State directory identifies trade mission here; August 31, 2017 official briefing ordered Washington trade mission closed by September 2. The National Register nomination dates construction to 1908–1909. Ownership and current active use are distinct.

The mansion’s original design contained 40 rooms. That historical program is not a count of the present layout. Soviet attaché use is documented in 1943; Canadian, Australian, and other tenants followed before Soviet purchase in December 1975.

  1. 1997-2001.state.gov
  2. 2017-2021.state.gov
  3. maps2.dcgis.dc.gov
  4. npgallery.nps.gov
  5. planning.dc.gov
  6. services.arcgis.com

Research Questions

Where Is Former Trade Representation?

2001 Connecticut Ave NW, Washington, DC.

Sources and basis

What Is the Site Area of Former Trade Representation?

Site area: 25,954 sq ft. Record status: verified. Sum of LANDAREA for the identified, nonoverlapping tax parcels, in square feet. Verified in the record on 2026-10-29.

Sources and basis

What Is the 2026 Value of Former Trade Representation?

2026 Value: $20,172,840. Record status: verified. Sum of current ASSESSMENT values for the identified parcels; CY1YEAR 2026 and DELCODE N. Includes land and improvements, not tax due or sale price. This is a tax assessment, not a verified sale price or market valuation. Verified in the record on 2026-10-29.

Sources and basis

What Is the Floor Area of Former Trade Representation?

Floor area: 14,957 sq ft. Record status: verified. DC CAMA: residential GBA is gross building area; commercial/condominium LIVING_GBA is the recorded living gross building or unit area. 2536 0308 building 1 section 1: 14,957 sq ft (commercial) Verified in the record on 2026-10-29.

Sources and basis

When Was Former Trade Representation Built?

Constructed: 1908–1909. Record status: verified. The National Register nomination dates construction to 1908–1909 and records building permit 843, issued 2 September 1908. The numeric sort year is the end of the documented range. PDF pages 3–4. Verified in the record on 2026-10-29.

Sources and basis

Who Designed Former Trade Representation?

Architect: Hornblower and Marshall. Record status: verified. The individual National Register nomination identifies Hornblower and Marshall as the architects. PDF page 3, Section 7 description, construction, permit, architects and forty-room design; PDF page 4, Section 8 summary, construction range; PDF page 13, printed Section 8, page 5, twentieth-century occupancy and December 1975 acquisition Verified in the record on 2026-10-29.

Sources and basis

Sources

  1. Lothrop Mansion, National Register of Historic Places nomination

    PDF pages 3 and 13, Section 7 and Section 8 page 5; preparation date in form section 11

  2. Diplomatic List, Spring 2000, Russian Federation

    Russian Federation entry, Spring 2000 edition

  3. Senior Administration Official on Russia, August 31, 2017

    Briefing of August 31, 2017

  4. Former Trade Representation
  5. Former Trade Representation
  6. Former Trade Representation

Notes

  • The 1943 association, 1975 acquisition, and later trade mission are separate episodes. The closure deadline is an order, not a verified date of physical departure.

Related Reading

Cite This Article

Lothrop Mansion, Former Russian Trade Representation. Chanceries Diplopedia. Record version 818f89f2ad3c423057f9.

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