Historic Mansion Converted to
600 Whitney Avenue, New Haven, CT 06511
MULTI_FAMILY - New Haven, CT
Property size:
5,736 SFLot size:
0.35 AcresPrice / SF:
$209/SF- Added:
- Apr 2, 2026
- Days on Market:
- 46
- Last Refresh:
- May 17 at 7:06 pm
Property Features for 600 Whitney Avenue
General Information
- Property type
- Residential Multi Family
- Property subtype
- Other
- Zoning
- RH1
- Bedrooms
- 7
- Bathrooms
- 5
- Rooms
- Bathroom 3, Bathroom 1, Bathroom 4, Bedroom 7, Bedroom 4, Bedroom 1, Bedroom 6, Bathroom 2, Bathroom 5, Bedroom 5, Bedroom 3, Bedroom 2, Basement
- Parking
- 4
- Patio and Porch features
- Deck
- Exterior features
- Underground Utilities,Sidewalk,Fruit Trees,Wrap Around Deck,Deck,Gutters,Garden Area
- Fireplace
- 1
- Basement
- Full, Partially Finished
- Standard status
- Active Under Contract
- Size
- 5,736 SF
- Lot size
- 0.35 Acres
Taxes and HOA fees
- Tax Year
- 2026
- Tax Annual Amount
- 26822
Utilities
- Sewer type
- Public Sewer
- Cooling system
- Central Air
- Water source
- Public
Building Details
- Year built
- 1910
- Architectural style
- Other
Listing agent Wojtek Borowski License #REB.0758965 (203) 606-9898
Listing office Pearce Real Estate 32 Whitney Avenue, North Haven, CT (203) 776-1899
Listing date Apr 2, 2026
MLS# 24158507
Listing URL
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.
HighLights
- Historic 1905 mansion with original architectural details like 10‑foot ceilings, woodwork, fireplaces, and stained glass.
- Remarkable owner's unit featuring a grand entry, elegant living room with fireplace, and spacious primary bedroom with fireplace.
- Income potential from three additional units.
- Unique mid‑century kitchen with circular dining area encircled by windows.
- Unit with custom soundproofing and kitchenette hidden behind custom built‑ins.
- Exterior features include fruit trees, wrap‑around deck, and garden area.
Overview
Originally constructed in 1905 as a wedding gift, this stately mansion was converted into a four-unit residence in 1953. The property retains many original architectural details, including 10-foot ceilings, woodwork, corner built-ins, restored brass light fixtures, fireplaces, exposed beams, paneled walls, and stained glass windows. The owner's unit features a grand entry foyer, a living room with fireplace, a primary bedroom with fireplace, and a second bedroom with custom built-ins and en-suite bath. A mid-century kitchen includes a circular dining area encircled by windows. The second-floor apartment has a 1-bedroom layout with a large living room, updated kitchen, and a bath retaining original tilework. Another unit, currently used as a 2-room owner's office, features living and bedroom spaces, both with fireplaces, and a kitchenette hidden behind custom built-ins; this unit has custom sound proofing in the walls, floors and ceilings. The third floor encompasses a full-floor 6-room apartment, currently configured as a 2-bedroom but adaptable to 3 bedrooms. The property is located in New Haven, CT, and has a lot size of 0.35 acres. The property size is 5736 square feet. The zoning is RH1. This multifamily property offers flexibility and income potential.
Financial Insights
Value Estimation Calculated for Multifamily LT 5
Conservative
$1.07M
NOI $96,548 @ 9.00% cap · cautious / downside scenario
Moderate
$1.38M
NOI $96,548 @ 7.00% cap · market / base-case scenario
Aggressive
$1.93M
NOI $96,548 @ 5.00% cap · optimistic / upside scenario
NOI & Cap Rate Calculator
NOI Build-Up
- 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.
Calculated for Multifamily LT 5
| Component | $ | $/SF |
|---|---|---|
| Gross rent | $148.0k | $25.80 |
| − Vacancy | −$10.1k | −$1.75 |
| EGI | $137.9k | $24.05 |
| − OpEx | −$41.4k | −$7.21 |
| NOI | $96.5k | $16.83 |
5,736 SF · lease $25.80/SF/yr · vacancy 6.80% · expense 30.00%
Alternative Use Scenarios
Best Use
Multifamily LT 5
$1.38M
$1.21M – $1.61M
NOI $96,548 @ 7.0% cap · market cap 8.05%
Second Best
Apartment 5plus
$1.28M
$1.12M – $1.50M
NOI $89,841 @ 7.0% cap · market cap 7.49%
Theoretical Best
Office A
$1.85M
$1.61M – $2.15M
NOI $129,159 @ 7.0% cap · market cap 10.76%
Zoning and permitted uses should be independently verified with local authorities.
Property Profile
Insight Report
Location Intelligence
Current Use by Public Records
Quadplexes
Location Insight
- Map
- Local Demand
- City
- New Haven
- County
- New Haven
- State
- Connecticut
- Longitude
- -72.915836
- Latitude
- 41.327046
Nearby Similar for Sale
FAQs
What type of property is this?
Quadplex - Stately 1905 mansion with four units and historic details.
Where is this quadplex located?
The property is located at 600 Whitney Avenue New Haven, CT.
What is the asking price?
The asking price for this property is $1,200,000.
What are key features of this property?
This property features: Historic 1905 mansion with original architectural details like 10‑foot ceilings, woodwork, fireplaces, and stained glass.; Remarkable owner's unit featuring a grand entry, elegant living room with fireplace, and spacious primary bedroom with fireplace.; Income potential from three additional units.
