Updated Two-Unit Residential Income
For Sale
$1,325,000
491 Marcy Street, Portsmouth, NH 03801
MULTI_FAMILY - Colonial - Portsmouth, NH
Property Size1,800 SF
Lot Size0.07 Acres
Price / SF$736.11
Days on Market10
Property Features for 491 Marcy Street
General Information
Property type
Residential Multi Family
Property subtype
Other
Zoning
GRB
Rooms
Basement
Parking features
Driveway, Off Street
Exterior features
Full Fence, Garden Space, Natural Shade, Shed, Storage
Fencing
Fenced
Appliances
Tank Water Heater
Lot features
Corner, Landscaped, Sidewalks, Water View, In Town, Near Country Club, Near Golf Course, Near Paths, Near Shopping, Near Public Transport, Near School(s)
Elementary school
Little Harbor School
Middle school
Portsmouth Middle School
High school
Portsmouth High School
Elementary school district
Portsmouth
Middle school district
Portsmouth
High school district
Portsmouth
Directions
GPS Friendly Location.
Standard status
Active
Size
1,800 SF
Lot size
0.07 Acres
Taxes and HOA fees
Tax Year
2025
Tax Annual Amount
10018
Utilities
Utilities
Cable Available
Heating system
Forced Air, Natural Gas
Water source
Public
Amenities
private back patio
private patio for the apartment
private sauna
oversized shed
workshop
Building Details
Year built
1750
Floors in Building
2
Number of units
2
Flooring type
Tile, Hardwood
Building materials
Fiberglss Blwn Insulation, Fiber Cement Exterior
Roof type
Shingle
Architectural style
Colonial
Additional Structures
Storage
Listing Agency:
Duston Leddy Real Estate
(603) 610-8285
Listed By:
Kirstin Stallkamp
(603) 661-8127
Added: Jul 21
Changed: Jul 25
Last Checked: Jul 30 at 5:06PM
MLS# 5100943
Copyright © 2026 PrimeMLS. 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 legal two-unit residential property offers flexible living arrangements, with an owner’s residence and an attached two-room studio apartment. The studio includes its own private entrance, an efficient layout, and a spa-inspired bathroom with a private sauna. The exterior features extensive updates completed in 2025, including a new roof, four skylights, new windows, cedar siding on the front facade, Hardie(R) cement board siding on the sides and rear, and blown-in insulation. Additional highlights include natural gas heat (with a new furnace being installed prior to closing), two 100-amp panels, public water and sewer, an attached private back patio for the property, and an additional private patio for the apartment. An oversized detached shed provides storage and could support workshop or garage potential. There is also one off-street parking spot.
Zoned GRB, the property is situated in Portsmouth’s South End area, located steps from Prescott Park, Strawbery Banke, and the Piscataqua River waterfront, with access to restaurants, boutiques, and entertainment.
A versatile setup supports multiple configurations, including use as a single-family home or as a side-by-side duplex, while the studio can function as a self-contained unit. Showings begin at the scheduled open house on Saturday, July 25th, from 12:00 to 2:00 PM.
Zoned GRB, the property is situated in Portsmouth’s South End area, located steps from Prescott Park, Strawbery Banke, and the Piscataqua River waterfront, with access to restaurants, boutiques, and entertainment.
A versatile setup supports multiple configurations, including use as a single-family home or as a side-by-side duplex, while the studio can function as a self-contained unit. Showings begin at the scheduled open house on Saturday, July 25th, from 12:00 to 2:00 PM.
Key Highlights
- Legal two‑unit property originally built circa 1750 with a Colonial architectural style
- Extensive exterior renovations in 2025: new roof, four skylights, new windows, new siding (cedar front; Hardie(R) cement board sides/rear), and blown‑in insulation
- Natural gas forced‑air heating; new furnace being installed prior to closing
Property Analytics
Property Profile
Current Use
Lease Details
2
Residential units
Multi-tenant
Tenancy
Yes
Utilities to site
Location Intelligence
Trade Area within ½ mile
2,277
Businesses Nearby
Explore this area
Business Placement
Demographics for 03801, NH
22,767
Population
11,448
Households
2
Avg Household Size
43
Median Age
63%
College-Educated
98%
High-School Grad
23.8 sq mi
ZIP Area
957
Density / Sq Mi
$106,520
Median Household Income
$65,984
Median Earnings
$1,783
Median Rent
$647,500
Median Home Value
Market
Vacancy Rate% for Multifamily in Northeast region
Questions? Ask Rey
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Frequently Asked Questions
What type of property is this?
Duplex - Legal two-unit property with 2025 exterior renovations, natural gas heat, and public water and sewer.
Where is this duplex located?
The property is located at 491 Marcy Street Portsmouth, NH.
What is the asking price?
The asking price for this property is $1,325,000.
What are key features of this property?
This property features: Legal two‑unit property originally built circa 1750 with a Colonial architectural style; Extensive exterior renovations in 2025: new roof, four skylights, new windows, new siding (cedar front; Hardie(R) cement board sides/rear), and blown‑in insulation; Natural gas forced‑air heating; new furnace being installed prior to closing
