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Residential Income Property with Den
For Sale
$610,000

12850 MOSAIC PARK WAY Unit 2U, Herndon, VA 20171

Updated corner residence offers flexible living space, private outdoor area, and secured underground parking in a managed community.

Property Size1,559 SF
Price / SF$391.28
Days on Market12

Property Features for 12850 MOSAIC PARK WAY Unit 2U

General Information

Standard status Active
Size 1,559 SF
Total Parking Spaces 1
Property subtype Penthouse Unit/Flat/Apartment

Site & Location

Highway Access Yes
Public Transit Yes

Additional Details

Multifamily Units 1

Taxes and HOA fees

Annual Taxes $7,240

Building Details

Building Size 1,559 SF
Year Built 2023
Listing Agency: Fairfax Realty Select
Listed By: Hengameh Nikmaram · License #0225082122
Source: Kerishull
Added: Aug 19 Changed: Aug 29 Last Checked: Aug 29 at 1:30PM

Displayed information is deemed reliable but is not guaranteed and should be independently verified. All listing content including descriptions, pricing, images are the copyrighted material of Fairfax Realty Select

Investment Insights

Based on property information with market context.

This 1,559-square-foot residential income property is a fifth-floor corner unit built in 2023, with a one-level layout comprising two bedrooms, a den, and two full baths. The interior includes luxury vinyl plank flooring, upgraded cabinetry, quartz countertops, stainless steel appliances, a center island, recessed and pendant lighting, a deep sink, and a walk-in pantry. The primary suite features two walk-in closets, dual vanities, an oversized shower, and a linen closet. A covered balcony, laundry closet, custom blinds, and programmable Eco thermostat add to the unit’s functional design. One secured underground garage space, identified as #16, is included in the same building.

The property is located 3/4 mile from the Herndon Metro Silver Line, with access to Routes 267, 28, and the Fairfax County Parkway. Reston Town Center, Washington Dulles International Airport, technology employers, retail, restaurants, entertainment, fitness studios, parks, and daily conveniences are described as nearby. Building access is secured, and the community provides maintenance-free living.

Key Highlights

  • 1,559‑square‑foot fifth‑floor corner unit built in 2023
  • Two bedrooms plus a den and two full baths
  • Covered balcony with open‑concept interior layout

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
$24,314
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
3.99%
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%
$486,280 $486.3K
Cap Rate 7%
$347,343 $347.3K
Cap Rate 9%
$270,156 $270.2K
Market Conditions
NOI Build-Up for 1,559 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
$47.3K $30.36/SF
− Vacancy
−$3.1K −$2.00/SF
EGI
$44.2K $28.36/SF
− OpEx
−$19.9K −$12.76/SF
NOI
$24.3K $15.60/SF
Area
Loudoun County, VA
Vacancy
6.60%
Lease Rate
$30.36 /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%
$486,280
Cap Rate 7%
$347,343
Cap Rate 9%
$270,156

Alternative Uses

Best Use
Apartment 5plus
$347.3K
$303.9K – $405.2K (±1% cap)
NOI $24,314 @ 7.0% cap · market cap 3.99%
Second Best
no second resolved use
Theoretical Best
Specialty Retail
$488.6K
$427.5K – $570.0K (±1% cap)
NOI $34,201 @ 7.0% cap · market cap 5.61%
Zoning and permitted uses should be independently verified with authorities.

Property Analytics

Current Use

Residential income properties

Suggested Use

Top Pick Real Estate Agency Dental Office Restaurant Law Firm Nail Salon Auto Repair Shop

Score = modeled unmet demand for each use within ~1 mi (higher = bigger opportunity). Zoning and permitted uses should be independently verified with local authorities.

Lease Details

1
Residential units
Yes
Highway access

Location Intelligence

Trade Area within ½ mile

140
Businesses Nearby

Demographics for 20171, VA

51,759
Population
19,221
Households
2.7
Avg Household Size
36
Median Age
74%
College-Educated
97%
High-School Grad
11.6 sq mi
ZIP Area
4,462
Density / Sq Mi
$166,154
Median Household Income
$89,943
Median Earnings
$2,276
Median Rent
$770,200
Median Home Value
Rey
Questions? Ask Rey
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Frequently Asked Questions

What type of property is this?
Residential income property - Updated corner residence offers flexible living space, private outdoor area, and secured underground parking in a managed community.
Where is this residential income property located?
The property is located at 12850 MOSAIC PARK WAY Unit 2U Herndon, VA.
What is the asking price?
The asking price for this property is $610,000.
What are key features of this property?
This property features: 1,559‑square‑foot fifth‑floor corner unit built in 2023; Two bedrooms plus a den and two full baths; Covered balcony with open‑concept interior layout
More about this property
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