Two-Unit Duplex with
28 Columbus Avenue, Greenwich, CT 06830
For Sale
New
$2,950,000
Residential Income, Greenwich, CT
Property Size3,420 SF
Lot Size0.11 Acres
Price / SF$862.57
Days on Market4
Property Features for 28 Columbus Avenue
General Information
Property type
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Bedrooms
Bathrooms
Full bathrooms
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Parking
Parking features
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Middle school
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APN
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Taxes and HOA fees
Tax Annual Amount
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Building Details
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Number of units
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Listing Agency:
Higgins Group Greenwich
(203) 220-5020
Listed By:
Rich Higgins
(203) 520-5356
Added: Nov 10
Changed: Nov 13
Last Checked: Nov 13 at 11:06PM
MLS# 126224
Copyright © 2026 Greenwich MLS. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.
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Investment Insights
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This two-unit duplex contains 3,420 square feet, with a combined six bedrooms, four full bathrooms, and two half bathrooms. Unit 1 underwent substantial renovation in 2025, and the property includes a garage assigned to that residence. Heating is natural gas, with central air conditioning. The site measures 0.11 acres and has four parking spaces.
The residences are deeded separately and currently held as condominiums. The property has R-6 zoning. A change to traditional two-family status would require an application to rezone; no approval is stated.
The residences are deeded separately and currently held as condominiums. The property has R-6 zoning. A change to traditional two-family status would require an application to rezone; no approval is stated.
Key Highlights
- Two‑unit property with 3,420 square feet
- Six bedrooms, 4 full bathrooms, and 2 half bathrooms
- Unit 1 renovated in 2025; its garage is included
Property Analytics
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Lease Details
2
Residential units
Location Intelligence
Trade Area within ½ mile
2,299
Businesses Nearby
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Business Placement
Demographics for 06830, CT
25,043
Population
11,065
Households
2.3
Avg Household Size
44
Median Age
69%
College-Educated
95%
High-School Grad
13.5 sq mi
ZIP Area
1,855
Density / Sq Mi
$146,841
Median Household Income
$67,755
Median Earnings
$2,296
Median Rent
$1,685,700
Median Home Value
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Market
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Vacancy Rate% for Multifamily in Northeast region
Frequently Asked Questions
What type of property is this?
Duplex - Separate deeds and assigned parking accompany the two residences.
Where is this duplex located?
The property is located at 28 Columbus Avenue Greenwich, CT.
What is the asking price?
The asking price for this property is $2,950,000.
What are key features of this property?
This property features: Two‑unit property with 3,420 square feet; Six bedrooms, 4 full bathrooms, and 2 half bathrooms; Unit 1 renovated in 2025; its garage is included
