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1666 Connecticut Ave NW 1666 Connecticut Ave NW 1,700 - 20,865 SF of Office Space Available in Washington, DC 20009
ALL AVAILABLE SPACES(8)
Display Rental Rate as
- SPACE
- SIZE
- TERM
- RENTAL RATE
- SPACE USE
- CONDITION
- AVAILABLE
Unique opportunity for discounted rental if space taken as-is. Fantastic elevator exposure on the front corner of the building overlooking Connecticut Avenue and R Street!
- Rate includes utilities, building services and property expenses
- Office intensive layout
- Fully Built-Out as Standard Office
- Can be combined with additional space(s) for up to 6,399 SF of adjacent space
Space on the front corner of the second floor overlooking Connecticut Avenue with direct elevator exposure. Available 4/2026 and can be combined with Suite 200.
- Rate includes utilities, building services and property expenses
- Can be combined with additional space(s) for up to 6,399 SF of adjacent space
- Office intensive layout
Full floor of spec suites with conference facility and tenant lounge coming soon to the third floor! Suites as small as ~1,500 RSF will be available in Q1 2026! Brand new suites and common areas designed by OTJ.
- Rate includes utilities, building services and property expenses
- Space is in Excellent Condition
- Office intensive layout
- Can be combined with additional space(s) for up to 12,600 SF of adjacent space
Full floor of spec suites with conference facility and tenant lounge coming soon to the third floor! Suites as small as ~1,500 RSF will be available in Q1 2026! Brand new suites and common areas designed by OTJ.
- Rate includes utilities, building services and property expenses
- Space is in Excellent Condition
- Office intensive layout
- Can be combined with additional space(s) for up to 12,600 SF of adjacent space
Full floor of spec suites with conference facility and tenant lounge coming soon to the third floor! Suites as small as ~1,500 RSF will be available in Q1 2026! Brand new suites and common areas designed by OTJ.
- Rate includes utilities, building services and property expenses
- Space is in Excellent Condition
- Office intensive layout
- Can be combined with additional space(s) for up to 12,600 SF of adjacent space
Full floor of spec suites with conference facility and tenant lounge coming soon to the third floor! Suites as small as ~1,500 RSF will be available in Q1 2026! Brand new suites and common areas designed by OTJ.
- Rate includes utilities, building services and property expenses
- Space is in Excellent Condition
- Office intensive layout
- Can be combined with additional space(s) for up to 12,600 SF of adjacent space
Full floor of spec suites with conference facility and tenant lounge coming soon to the third floor! Suites as small as ~1,500 RSF will be available in Q1 2026! Brand new suites and common areas designed by OTJ.
- Rate includes utilities, building services and property expenses
- Space is in Excellent Condition
- Office intensive layout
- Can be combined with additional space(s) for up to 12,600 SF of adjacent space
Planned future spec suite to be built in conjunction with the third floor suites - set for Spring 2026 delivery! Unique opportunity for discounted rental if space taken as-is prior to construction start. Second-generation space in good condition with three large windowed offices on the front of the 5th floor overlooking Connecticut Avenue.
- Rate includes utilities, building services and property expenses
- Office intensive layout
- Fully Built-Out as Standard Office
| Space | Size | Term | Rental Rate | Space Use | Condition | Available |
| 2nd Floor, Ste 200 | 1,875 SF | Negotiable | $69.15 CAD/SF/YR $5.76 CAD/SF/MO $129,660 CAD/YR $10,805 CAD/MO | Office | Full Build-Out | Now |
| 2nd Floor, Ste 201 | 4,524 SF | Negotiable | $69.15 CAD/SF/YR $5.76 CAD/SF/MO $312,844 CAD/YR $26,070 CAD/MO | Office | Full Build-Out | 2026-04-01 |
| 3rd Floor, Ste 300-A | 3,700 SF | Negotiable | $69.15 CAD/SF/YR $5.76 CAD/SF/MO $255,862 CAD/YR $21,322 CAD/MO | Office | Spec Suite | Now |
| 3rd Floor, Ste 300-B | 1,700 SF | Negotiable | $69.15 CAD/SF/YR $5.76 CAD/SF/MO $117,558 CAD/YR $9,797 CAD/MO | Office | Spec Suite | Now |
| 3rd Floor, Ste 300-C | 2,500 SF | Negotiable | $69.15 CAD/SF/YR $5.76 CAD/SF/MO $172,880 CAD/YR $14,407 CAD/MO | Office | Spec Suite | Now |
| 3rd Floor, Ste 300-D | 2,500 SF | Negotiable | $69.15 CAD/SF/YR $5.76 CAD/SF/MO $172,880 CAD/YR $14,407 CAD/MO | Office | Spec Suite | Now |
| 3rd Floor, Ste 300-E | 2,200 SF | Negotiable | $69.15 CAD/SF/YR $5.76 CAD/SF/MO $152,134 CAD/YR $12,678 CAD/MO | Office | Spec Suite | Now |
| 5th Floor, Ste 500 | 1,866 SF | Negotiable | $69.15 CAD/SF/YR $5.76 CAD/SF/MO $129,038 CAD/YR $10,753 CAD/MO | Office | Full Build-Out | Now |
2nd Floor, Ste 200
| Size |
| 1,875 SF |
| Term |
| Negotiable |
| Rental Rate |
| $69.15 CAD/SF/YR $5.76 CAD/SF/MO $129,660 CAD/YR $10,805 CAD/MO |
| Space Use |
| Office |
| Condition |
| Full Build-Out |
| Available |
| Now |
2nd Floor, Ste 201
| Size |
| 4,524 SF |
| Term |
| Negotiable |
| Rental Rate |
| $69.15 CAD/SF/YR $5.76 CAD/SF/MO $312,844 CAD/YR $26,070 CAD/MO |
| Space Use |
| Office |
| Condition |
| Full Build-Out |
| Available |
| 2026-04-01 |
3rd Floor, Ste 300-A
| Size |
| 3,700 SF |
| Term |
| Negotiable |
| Rental Rate |
| $69.15 CAD/SF/YR $5.76 CAD/SF/MO $255,862 CAD/YR $21,322 CAD/MO |
| Space Use |
| Office |
| Condition |
| Spec Suite |
| Available |
| Now |
3rd Floor, Ste 300-B
| Size |
| 1,700 SF |
| Term |
| Negotiable |
| Rental Rate |
| $69.15 CAD/SF/YR $5.76 CAD/SF/MO $117,558 CAD/YR $9,797 CAD/MO |
| Space Use |
| Office |
| Condition |
| Spec Suite |
| Available |
| Now |
3rd Floor, Ste 300-C
| Size |
| 2,500 SF |
| Term |
| Negotiable |
| Rental Rate |
| $69.15 CAD/SF/YR $5.76 CAD/SF/MO $172,880 CAD/YR $14,407 CAD/MO |
| Space Use |
| Office |
| Condition |
| Spec Suite |
| Available |
| Now |
3rd Floor, Ste 300-D
| Size |
| 2,500 SF |
| Term |
| Negotiable |
| Rental Rate |
| $69.15 CAD/SF/YR $5.76 CAD/SF/MO $172,880 CAD/YR $14,407 CAD/MO |
| Space Use |
| Office |
| Condition |
| Spec Suite |
| Available |
| Now |
3rd Floor, Ste 300-E
| Size |
| 2,200 SF |
| Term |
| Negotiable |
| Rental Rate |
| $69.15 CAD/SF/YR $5.76 CAD/SF/MO $152,134 CAD/YR $12,678 CAD/MO |
| Space Use |
| Office |
| Condition |
| Spec Suite |
| Available |
| Now |
5th Floor, Ste 500
| Size |
| 1,866 SF |
| Term |
| Negotiable |
| Rental Rate |
| $69.15 CAD/SF/YR $5.76 CAD/SF/MO $129,038 CAD/YR $10,753 CAD/MO |
| Space Use |
| Office |
| Condition |
| Full Build-Out |
| Available |
| Now |
2nd Floor, Ste 200
| Size | 1,875 SF |
| Term | Negotiable |
| Rental Rate | $69.15 CAD/SF/YR |
| Space Use | Office |
| Condition | Full Build-Out |
| Available | Now |
Unique opportunity for discounted rental if space taken as-is. Fantastic elevator exposure on the front corner of the building overlooking Connecticut Avenue and R Street!
- Rate includes utilities, building services and property expenses
- Fully Built-Out as Standard Office
- Office intensive layout
- Can be combined with additional space(s) for up to 6,399 SF of adjacent space
2nd Floor, Ste 201
| Size | 4,524 SF |
| Term | Negotiable |
| Rental Rate | $69.15 CAD/SF/YR |
| Space Use | Office |
| Condition | Full Build-Out |
| Available | 2026-04-01 |
Space on the front corner of the second floor overlooking Connecticut Avenue with direct elevator exposure. Available 4/2026 and can be combined with Suite 200.
- Rate includes utilities, building services and property expenses
- Office intensive layout
- Can be combined with additional space(s) for up to 6,399 SF of adjacent space
3rd Floor, Ste 300-A
| Size | 3,700 SF |
| Term | Negotiable |
| Rental Rate | $69.15 CAD/SF/YR |
| Space Use | Office |
| Condition | Spec Suite |
| Available | Now |
Full floor of spec suites with conference facility and tenant lounge coming soon to the third floor! Suites as small as ~1,500 RSF will be available in Q1 2026! Brand new suites and common areas designed by OTJ.
- Rate includes utilities, building services and property expenses
- Office intensive layout
- Space is in Excellent Condition
- Can be combined with additional space(s) for up to 12,600 SF of adjacent space
3rd Floor, Ste 300-B
| Size | 1,700 SF |
| Term | Negotiable |
| Rental Rate | $69.15 CAD/SF/YR |
| Space Use | Office |
| Condition | Spec Suite |
| Available | Now |
Full floor of spec suites with conference facility and tenant lounge coming soon to the third floor! Suites as small as ~1,500 RSF will be available in Q1 2026! Brand new suites and common areas designed by OTJ.
- Rate includes utilities, building services and property expenses
- Office intensive layout
- Space is in Excellent Condition
- Can be combined with additional space(s) for up to 12,600 SF of adjacent space
3rd Floor, Ste 300-C
| Size | 2,500 SF |
| Term | Negotiable |
| Rental Rate | $69.15 CAD/SF/YR |
| Space Use | Office |
| Condition | Spec Suite |
| Available | Now |
Full floor of spec suites with conference facility and tenant lounge coming soon to the third floor! Suites as small as ~1,500 RSF will be available in Q1 2026! Brand new suites and common areas designed by OTJ.
- Rate includes utilities, building services and property expenses
- Office intensive layout
- Space is in Excellent Condition
- Can be combined with additional space(s) for up to 12,600 SF of adjacent space
3rd Floor, Ste 300-D
| Size | 2,500 SF |
| Term | Negotiable |
| Rental Rate | $69.15 CAD/SF/YR |
| Space Use | Office |
| Condition | Spec Suite |
| Available | Now |
Full floor of spec suites with conference facility and tenant lounge coming soon to the third floor! Suites as small as ~1,500 RSF will be available in Q1 2026! Brand new suites and common areas designed by OTJ.
- Rate includes utilities, building services and property expenses
- Office intensive layout
- Space is in Excellent Condition
- Can be combined with additional space(s) for up to 12,600 SF of adjacent space
3rd Floor, Ste 300-E
| Size | 2,200 SF |
| Term | Negotiable |
| Rental Rate | $69.15 CAD/SF/YR |
| Space Use | Office |
| Condition | Spec Suite |
| Available | Now |
Full floor of spec suites with conference facility and tenant lounge coming soon to the third floor! Suites as small as ~1,500 RSF will be available in Q1 2026! Brand new suites and common areas designed by OTJ.
- Rate includes utilities, building services and property expenses
- Office intensive layout
- Space is in Excellent Condition
- Can be combined with additional space(s) for up to 12,600 SF of adjacent space
5th Floor, Ste 500
| Size | 1,866 SF |
| Term | Negotiable |
| Rental Rate | $69.15 CAD/SF/YR |
| Space Use | Office |
| Condition | Full Build-Out |
| Available | Now |
Planned future spec suite to be built in conjunction with the third floor suites - set for Spring 2026 delivery! Unique opportunity for discounted rental if space taken as-is prior to construction start. Second-generation space in good condition with three large windowed offices on the front of the 5th floor overlooking Connecticut Avenue.
- Rate includes utilities, building services and property expenses
- Fully Built-Out as Standard Office
- Office intensive layout
FEATURES AND AMENITIES
- Food Service
- Property Manager on Site
- Natural Light
PROPERTY FACTS
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1666 Connecticut Ave NW | 1666 Connecticut Ave NW
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