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Property summary
This seven-story, 84,393 square foot Class B office building at 1666 Connecticut Ave NW, Washington, DC 20009, is a value-add investment opportunity. Built in 1962 and renovated in 2021, the property boasts a 10.50% cap rate and 80.7% occupancy as of February 1, 2024. Eleven tenants occupy the space, including a long-term anchor tenant (Appalachian Regional Commission) leasing 38% of the rentable building area through June 2035. The weighted average remaining lease term is approximately 8… years. The building benefits from a prime location at the intersection of Connecticut Avenue, R Street, and 20th Street, near Dupont Circle and the Kalorama neighborhood. Its proximity to the Dupont Circle Metrorail station (Red Line) ensures excellent accessibility. The surrounding area offers a vibrant mix of residential, commercial, and cultural attractions. Recent improvements totaling $3.5 million include lobby upgrades, a spec suite program (resulting in significant leasing activity – over 55,600 square feet leased since 2020), and common area enhancements. The property's MU-20 zoning allows for flexibility in future uses. Historically, the building has maintained high occupancy rates (90% over 15 years and 95% over 30 years), demonstrating consistent tenant demand. The building's strong anchor tenant, recent renovations, and desirable location position it favorably for continued occupancy growth and strong returns.
Ownership intelligence
Resolved identity, portfolio, hold profile and investor signals. Included in the full report.
Owner contacts
Skip-traced phones and e-mails of the owner. Included with the full report.
Mortgages
Recorded lenders, amounts and estimated maturities of the owner's loan book — in the full report.
Property tax · 2023
Value estimate
· Sep 2026Realmo valuation models over county records and 6 qualifying comparable sales.
Recently sold
Cap rate analysis
No income signal is modeled for this parcel yet — the Cap Rates tab runs the workflow.
Zoning insight
Location intelligence
Demand index: how under-served this business type is around this point — modeled from the LocInt grid (area demand vs. what already operates, adjusted by real visit traffic). Higher means stronger unmet demand.
Location
Every figure names its source: public record, benchmark, or modeled. Coverage varies by property — thin data is stated as missing, never invented.
Comparables
6 recent transactions · within 1.5 miComparable in this City
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Instant AI valuation built from comps, income signals, and proprietary benchmarks.A defensible range, not a single guess.
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Cap rate calculated from real income and expense signals, benchmarked against sales of similar assets nearby.
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Price sensitivity
The rate is the decision lever; valuation is the consequence.
The recorded zoning designation, what the district officially allows, and the municipal source it comes from.
Zoning designation
Registration is required before the official district profile is shown.
Phones and e-mails of the people behind this property's owner, traced from licensed contact data.
Owner phones and e-mails come with the full report for this property - traced from licensed contact data, with verification and Do-Not-Call flags on every number.
Unlock the evidence behind ownership: portfolio, transactions, debt and signals that help you decide who to contact next.
Registration is required before any owner information is shown.
The mortgage data is behind the paid report: recorded loans of the owner - lender, amount, rate and the estimated maturity - as part of the Ownership Intelligence workspace.
Registration is required before any owner information is shown.
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