Updated Duplex with Off-Street
New
For Sale
$495,000
15 Union Street, Peterborough, NH 03458
Two refreshed units offer flexible living space, modernized kitchens and baths, and washer/dryer hookups.
Property Size1,815 SF
Price / SF$272.73
Days on Market5
Property Features for 15 Union Street
General Information
Standard status
Active
Size
1,815 SF
Property subtype
Residential Income
Units
Unit Mix
1 x 2BR+bonus, 1 x 2BR/1BA
Multifamily Units
2
Taxes and HOA fees
Annual Taxes
$7,265
Amenities
washer/dryer hookups
Building Details
Buildings
1
Listing Agency:
EXP Realty
(888) 398-7062
Listed By:
Dillon Badger
(603) 769-9233
Source:
Exprealty
Added: Sep 21
Changed: Sep 22
Last Checked: Sep 24 at 12:32PM
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 EXP Realty
Investment Insights
Based on property information with market context.
This 1,815-square-foot duplex at 15 Union Street includes two residential units with separate panels for Unit A, Unit B, and the shared areas. The first-floor Unit A has two bedrooms and a bonus room suitable for use as an office, dining room, or additional living area. Unit B contains two bedrooms and one bath. Both apartments feature renovated kitchens and bathrooms, updated flooring and paint, and washer/dryer hookups.
Major work completed during 2025–2026 includes a new roof, 22 replacement windows, plumbing improvements, exterior painting, and a fully updated 400-amp electrical service. Electric heat serves as the primary system, with a shared oil furnace retained for backup. Off-street parking is included, and the property is located near downtown Peterborough.
Major work completed during 2025–2026 includes a new roof, 22 replacement windows, plumbing improvements, exterior painting, and a fully updated 400-amp electrical service. Electric heat serves as the primary system, with a shared oil furnace retained for backup. Off-street parking is included, and the property is located near downtown Peterborough.
Key Highlights
- Two‑unit duplex with 1,815 SF of total property size
- Unit A includes 2 bedrooms and a flexible bonus room
- Unit B offers 2 bedrooms and 1 bath
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
$26,654
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
5.38%
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%
$533,080
$533.1K
Cap Rate 7%
$380,771
$380.8K
Cap Rate 9%
$296,156
$296.2K
Market Conditions
NOI Build-Up for 1,815 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
$40.3K $22.20/SF
− Vacancy
−$2.2K −$1.22/SF
EGI
$38.1K $20.98/SF
− OpEx
−$11.4K −$6.29/SF
NOI
$26.7K $14.69/SF
Area
Hillsborough County, NH
Vacancy
5.50%
Lease Rate
$22.20 /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%
$533,080
Cap Rate 7%
$380,771
Cap Rate 9%
$296,156
Alternative Uses
Best Use
Multifamily LT 5
$380.8K
$333.2K – $444.2K
NOI $26,654 @ 7.0% cap · market cap 5.38%
Second Best
Apartment 5plus
$352.8K
$308.7K – $411.6K
NOI $24,695 @ 7.0% cap · market cap 4.99%
Theoretical Best
Specialty Retail
$3.33M
$2.91M – $3.88M
NOI $232,774 @ 7.0% cap · market cap 47.03%
Zoning and permitted uses should be independently verified with authorities.
Property Analytics
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Current Use
Lease Details
2
Residential units
Location Intelligence
Trade Area within ½ mile
499
Businesses Nearby
Explore this area
Business Placement
Demographics for 03458, NH
6,794
Population
3,610
Households
1.9
Avg Household Size
50
Median Age
58%
College-Educated
96%
High-School Grad
53.7 sq mi
ZIP Area
127
Density / Sq Mi
$100,189
Median Household Income
$58,259
Median Earnings
$1,304
Median Rent
$368,100
Median Home Value
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Market
Vacancy Rate% for Multifamily in Northeast region
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Frequently Asked Questions
What type of property is this?
Duplex - Two refreshed units offer flexible living space, modernized kitchens and baths, and washer/dryer hookups.
Where is this duplex located?
The property is located at 15 Union Street Peterborough, NH.
What is the asking price?
The asking price for this property is $495,000.
What are key features of this property?
This property features: Two‑unit duplex with 1,815 SF of total property size; Unit A includes 2 bedrooms and a flexible bonus room; Unit B offers 2 bedrooms and 1 bath
