Cooperative Residential Property with
For Sale
$219,000
3900 CATHEDRAL AVE NW #609A, Washington, DC 20016
WASHINGTON, DC
Property Size1,100 SF
Price / SF$199.09
Days on Market75
Property Features for 3900 CATHEDRAL AVE NW #609A
General Information
Property type
Residential Multi Family
Property subtype
Other
Bedrooms
1
Bathrooms
1
Full bathrooms
1
Rooms
Bedroom 1
Subdivision
OBSERVATORY CIRCLE
Elementary school district
DISTRICT OF COLUMBIA PUBLIC SCHOOLS
Middle school district
DISTRICT OF COLUMBIA PUBLIC SCHOOLS
High school district
DISTRICT OF COLUMBIA PUBLIC SCHOOLS
Standard status
Active
Amenities
Concierge desk
Westchester Market
Valet
Guest Suites
Fitness Center
Library
onsite parking
Service Department
24/7 security personnel
Building Details
Year built
1931
Listing Agency:
Chevy Chase Circle
(202) 966-1400
Listed By:
Stan Watters
Added: Jul 2
Changed: Aug 23
Last Checked: Sep 14 at 10:06PM
MLS# DCDC2271252
Copyright © 2026 Long & Foster Real Estate. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.
Investment Insights
Based on property information with market context.
Apartment 609-A is a 1,100-square-foot cooperative residence at the Westchester, a 1931 property with Art Deco detailing and landscaped communal grounds. The one-bedroom, one-bath layout includes a spacious living room, separate solarium, study, bedroom with a walk-in closet, and an additional cedar-lined clothes closet. High ceilings and northern and western exposures add to the interior character, while the solarium provides a direct view of the National Cathedral. The study may serve as a dining area or guest bedroom, subject to the buyer’s plans.
The cooperative fee covers property tax, utilities, landscaping, grounds maintenance, and 24/7 security personnel. Building services and amenities include concierge service, a market with deli, dry-cleaning valet, guest suites, fitness center, library, onsite parking, and resident maintenance assistance. Cathedral Commons, Foxhall Square, and Metro Bus service along Cathedral Avenue are nearby.
The cooperative fee covers property tax, utilities, landscaping, grounds maintenance, and 24/7 security personnel. Building services and amenities include concierge service, a market with deli, dry-cleaning valet, guest suites, fitness center, library, onsite parking, and resident maintenance assistance. Cathedral Commons, Foxhall Square, and Metro Bus service along Cathedral Avenue are nearby.
Key Highlights
- 1,100‑square‑foot 1‑bedroom/1‑bath cooperative residence
- Separate solarium with northern and western exposures and a direct view of the National Cathedral
- High ceilings, large living room, study, walk‑in closet, and cedar‑lined clothes closet
Financial Insights
Estimated NOI and Cap Rate
NOI = area × lease_rate × (100 − vacancy) / 100 × (1 − expense_ratio). Net Operating Income — what the owner takes home each year before mortgage payments and income tax. Effective rent (asking rent minus vacancy losses) minus operating costs (taxes, insurance, maintenance, management).
NOI / Yr
$18,277
Cap rate = NOI / list price × 100. Capitalization rate — annual return on a fully cash purchase, before financing. NOI divided by price. Higher means more income per dollar invested, but usually also more risk or older condition. 5–8% is typical for stabilized commercial property; double digits often signal distressed deals.
Cap Rate
8.35%
Suggested Prices Based on Cap Rates
Cap rates vary significantly by property type, market, and asset quality.
Typical U.S. stable-market ranges:
Multifamily — 4.5% to 6.5% (Class A in primary markets often sub-5%; Class C in secondary markets 6%+)
Industrial / Logistics — 5.0% to 7.0% (compressed heavily in recent years due to e-commerce demand)
Office — 6.5% to 9%+ (wide spread post-2020; CBD Class A vs. suburban Class B varies dramatically)
Retail — 5.5% to 8.5% (grocery-anchored on the low end, unanchored strip centers higher)
Hospitality / Hotels — 7.5% to 10%+ (higher due to operational risk)
Self-Storage — 5.5% to 7.5%
Medical Office — 6.0% to 7.5%
Net Lease (single tenant, credit) — 5.0% to 7.0% depending on tenant credit and lease term
Rules of thumb:
Primary markets (NYC, SF, LA, Boston, DC) trade at lower cap rates than secondary/tertiary markets, often by 100–200 bps (bps, aka basis points; 1 bp = 0.01%).
Class A assets trade ~50–150 bps tighter than Class B, and Class B tighter than Class C.
Cap rates move inversely with price — a lower cap rate means a higher price for the same NOI.
Spread to the 10-year Treasury is a common benchmark; historically 200–400 bps over the 10-year.
Cap Rate 5%
$365,540
$365.5K
Cap Rate 7%
$261,100
$261.1K
Cap Rate 9%
$203,078
$203.1K
Market Conditions
NOI Build-Up for 1,100 SF
Vacancy — income lost from leasable area expected to sit empty during the year, subtracted from gross rent.
EGI (Effective Gross Income) — gross rent minus vacancy losses, the realistic income before paying operating costs.
OpEx (Operating Expenses) — recurring costs to operate the property (property tax, insurance, utilities, maintenance, management); excludes financing and capital improvements.
NOI (Net Operating Income) — income a property generates after operating costs but before financing and taxes.
Gross rent
$35.0K $31.80/SF
− Vacancy
−$1.7K −$1.59/SF
EGI
$33.2K $30.21/SF
− OpEx
−$15.0K −$13.59/SF
NOI
$18.3K $16.62/SF
Area
Washington, DC
Vacancy
5.00%
Lease Rate
$31.80 /SF/Yr
Expense Ratio
45.00%
Simulate Cap Rate and NOI
Suggested Prices Based on Cap Rates
Cap rates vary significantly by property type, market, and asset quality.
Typical U.S. stable-market ranges:
Multifamily — 4.5% to 6.5% (Class A in primary markets often sub-5%; Class C in secondary markets 6%+)
Industrial / Logistics — 5.0% to 7.0% (compressed heavily in recent years due to e-commerce demand)
Office — 6.5% to 9%+ (wide spread post-2020; CBD Class A vs. suburban Class B varies dramatically)
Retail — 5.5% to 8.5% (grocery-anchored on the low end, unanchored strip centers higher)
Hospitality / Hotels — 7.5% to 10%+ (higher due to operational risk)
Self-Storage — 5.5% to 7.5%
Medical Office — 6.0% to 7.5%
Net Lease (single tenant, credit) — 5.0% to 7.0% depending on tenant credit and lease term
Rules of thumb:
Primary markets (NYC, SF, LA, Boston, DC) trade at lower cap rates than secondary/tertiary markets, often by 100–200 bps (bps, aka basis points; 1 bp = 0.01%).
Class A assets trade ~50–150 bps tighter than Class B, and Class B tighter than Class C.
Cap rates move inversely with price — a lower cap rate means a higher price for the same NOI.
Spread to the 10-year Treasury is a common benchmark; historically 200–400 bps over the 10-year.
Cap Rate 5%
$365,540
Cap Rate 7%
$261,100
Cap Rate 9%
$203,078
Alternative Uses
Best Use
Apartment 5plus
$261.1K
$228.5K – $304.6K
NOI $18,277 @ 7.0% cap · market cap 8.35%
Second Best
—
—
no second resolved use
Theoretical Best
Office A
$565.8K
$495.1K – $660.1K
NOI $39,606 @ 7.0% cap · market cap 18.08%
Zoning and permitted uses should be independently verified with authorities.
Property Analytics
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Current Use
Lease Details
1
Residential units
Location Intelligence
Trade Area within ½ mile
1,349
Businesses Nearby
Explore this area
Business Placement
Demographics for 20016, DC
35,068
Population
15,457
Households
2.3
Avg Household Size
37
Median Age
88%
College-Educated
99%
High-School Grad
4.4 sq mi
ZIP Area
7,970
Density / Sq Mi
$179,107
Median Household Income
$104,275
Median Earnings
$2,105
Median Rent
$1,206,200
Median Home Value
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Frequently Asked Questions
What type of property is this?
Residential income property - Art Deco cooperative residence with flexible interior space, elevated ceilings, extensive services, and a direct National Cathedral outlook.
Where is this residential income property located?
The property is located at 3900 CATHEDRAL AVE NW #609A Washington, DC.
What is the asking price?
The asking price for this property is $219,000.
What are key features of this property?
This property features: 1,100‑square‑foot 1‑bedroom/1‑bath cooperative residence; Separate solarium with northern and western exposures and a direct view of the National Cathedral; High ceilings, large living room, study, walk‑in closet, and cedar‑lined clothes closet
