Renovated Two-Family
New
For Sale
$825,000
133 Rock Spring Road, Stamford, CT 06906
Multi-Family For Sale, Units are Side-by-Side, Stamford, CT
Property Size1,702 SF
Lot Size0.13 Acres
Price / SF$484.72
Days on Market5
Property Features for 133 Rock Spring Road
General Information
Property type
Residential Multi Family
Property subtype
Other
Zoning
R6
Bedrooms
4
Bathrooms
3
Full bathrooms
2
Half bathrooms
1
Rooms
Bathroom 2, Bathroom 3, Bathroom 1, Bedroom 4, Basement, Bedroom 3, Bedroom 2, Bedroom 1
Parking
2
Fireplace
1
Basement
Unfinished, Full
Lot features
Level Lot
Elementary school
Per Board of Ed
High school
Per Board of Ed
Directions
GPS
Subdivision
Glenbrook
Standard status
Active
Size
1,702 SF
Lot size
0.13 Acres
Taxes and HOA fees
Tax Year
2026
Tax Annual Amount
7857
Utilities
Sewer type
Public Sewer
Heating system
Hot Water(Heating)
Cooling system
Window Unit(s)
Water source
Public
Amenities
private backyard
grilling
gardening
Building Details
Year built
1920
Architectural style
Other
Listing Agency:
Keller Williams Prestige Prop. · Keller Williams Realty
(203) 327-6700
Listed By:
Herman Huang
(203) 803-9443
Added: Aug 25
Changed: Aug 26
Last Checked: Aug 29 at 4:06AM
MLS# 24201717
Copyright © 2026 SmartMLS, Inc. 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.
This two-family duplex contains 1,702 square feet in a side-by-side configuration. The unit mix includes one three-bedroom, 1.5-bath residence and a second one-bedroom, one-bath residence. Both units were renovated in 2023, and the property includes a private backyard with room for grilling, gardening, and outdoor use.
Built in 1920, the property sits on 0.13 acres and is served by public water and public sewer. Heating is provided by hot water, with window-unit cooling and a fireplace. The R6-zoned property is near I-95, the Merritt Parkway, rail service, and downtown Stamford.
Built in 1920, the property sits on 0.13 acres and is served by public water and public sewer. Heating is provided by hot water, with window-unit cooling and a fireplace. The R6-zoned property is near I-95, the Merritt Parkway, rail service, and downtown Stamford.
Key Highlights
- 1,702‑square‑foot two‑family duplex with side‑by‑side units
- Unit mix includes 3 bedrooms and 1.5 baths in one unit, plus 1 bedroom and 1 bath in the other
- Both units renovated in 2023
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
$32,750
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
3.97%
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%
$655,000
$655.0K
Cap Rate 7%
$467,857
$467.9K
Cap Rate 9%
$363,889
$363.9K
Market Conditions
NOI Build-Up for 1,702 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
$50.0K $29.40/SF
− Vacancy
−$3.3K −$1.91/SF
EGI
$46.8K $27.49/SF
− OpEx
−$14.0K −$8.25/SF
NOI
$32.8K $19.24/SF
Area
Stamford, CT
Vacancy
6.50%
Lease Rate
$29.40 /SF/Yr
Expense Ratio
30.00%
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%
$655,000
Cap Rate 7%
$467,857
Cap Rate 9%
$363,889
Alternative Uses
Best Use
Multifamily LT 5
$467.9K
$409.4K – $545.8K
NOI $32,750 @ 7.0% cap · market cap 3.97%
Second Best
Apartment 5plus
$418.5K
$366.2K – $488.2K
NOI $29,292 @ 7.0% cap · market cap 3.55%
Theoretical Best
Office A
$615.4K
$538.5K – $718.0K
NOI $43,078 @ 7.0% cap · market cap 5.22%
Zoning and permitted uses should be independently verified with authorities.
Property Analytics
Property Profile
Current Use
Lease Details
2
Residential units
Yes
Highway access
Location Intelligence
Trade Area within ½ mile
1,554
Businesses Nearby
Explore this area
Business Placement
Demographics for 06906, CT
9,902
Population
3,727
Households
2.7
Avg Household Size
38
Median Age
47%
College-Educated
80%
High-School Grad
1.3 sq mi
ZIP Area
7,617
Density / Sq Mi
$91,710
Median Household Income
$45,518
Median Earnings
$2,207
Median Rent
$576,200
Median Home Value
Market
Vacancy Rate% for Multifamily in Northeast region
Questions? Ask Rey
Realmo’s AI knows this listing — price, zoning, demand, history. Ask anything.
Frequently Asked Questions
What type of property is this?
Duplex - Side-by-side units combine a three-bedroom layout with a one-bedroom apartment and private outdoor space.
Where is this duplex located?
The property is located at 133 Rock Spring Road Stamford, CT.
What is the asking price?
The asking price for this property is $825,000.
What are key features of this property?
This property features: 1,702‑square‑foot two‑family duplex with side‑by‑side units; Unit mix includes 3 bedrooms and 1.5 baths in one unit, plus 1 bedroom and 1 bath in the other; Both units renovated in 2023
