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Duplex with Bonus Cabin
For Sale
$1,250,000

8 Nashua Street A & B, Seabrook, NH 03874

Two matching units provide flexible space for rental use, personal occupancy, or extended-family living near Seabrook Beach.

Property Size2,100 SF
Price / SF$595.24
Days on Market35

Property Features for 8 Nashua Street A & B

General Information

Standard status Active
Size 2,100 SF
Property subtype Multi-Family

Additional Details

Multifamily Units 2

Amenities

decks
bonus cabin

Building Details

Year Built 1955
Listing Agency: East Coast Group One Realty
Listed By: Martha Baroody
Source: Megansellsnh
Added: Jul 26 Changed: Aug 28 Last Checked: Aug 29 at 11:58AM

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 East Coast Group One Realty

Investment Insights

Based on property information with market context.

This 2,100-square-foot duplex, built in 1955, contains two matching units with a combined six bedrooms. Each side includes a living room, eat-in kitchen, first-floor full bathroom, and washer. Oversized decks extend from the kitchens and primary bedrooms, adding outdoor space to both units. A detached backyard cabin with plumbing access provides additional flexible space for recreation, guests, or storage, subject to applicable approvals.

Located at 8 Nashua Street A & B in Seabrook, the property offers access to Seabrook Beach within a short walk. Parking is available along both sides and at the front of the home. The two-unit layout supports continued duplex use, while the existing configuration also provides flexibility for personal, rental, or multigenerational occupancy.

Key Highlights

  • 2,100‑square‑foot duplex with 6 total bedrooms
  • Two matching units, each with living room, eat‑in kitchen, full bath, and washer
  • Oversized decks serve the kitchens and primary bedrooms

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
$35,377
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
2.83%
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%
$707,540 $707.5K
Cap Rate 7%
$505,386 $505.4K
Cap Rate 9%
$393,078 $393.1K
Market Conditions
NOI Build-Up for 2,100 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
$52.9K $25.20/SF
− Vacancy
−$2.4K −$1.13/SF
EGI
$50.5K $24.07/SF
− OpEx
−$15.2K −$7.22/SF
NOI
$35.4K $16.85/SF
Area
Rockingham County, NH
Vacancy
4.50%
Lease Rate
$25.20 /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%
$707,540
Cap Rate 7%
$505,386
Cap Rate 9%
$393,078

Alternative Uses

Best Use
Multifamily LT 5
$505.4K
$442.2K – $589.6K (±1% cap)
NOI $35,377 @ 7.0% cap · market cap 2.83%
Second Best
Apartment 5plus
$455.2K
$398.3K – $531.1K (±1% cap)
NOI $31,867 @ 7.0% cap · market cap 2.55%
Theoretical Best
Office A
$699.1K
$611.8K – $815.7K (±1% cap)
NOI $48,940 @ 7.0% cap · market cap 3.92%
Zoning and permitted uses should be independently verified with authorities.

Property Analytics

Current Use

Duplexes

Suggested Use

Top Pick Law Firm Grocery & Convenience Store Bakery (Bike/Boat/Book/etc) Store Storage Facility Cafe & Coffee Shop

Score = modeled unmet demand for each use within ~1 mi (higher = bigger opportunity). Zoning and permitted uses should be independently verified with local authorities.

Lease Details

2
Residential units

Location Intelligence

Trade Area within ½ mile

53
Businesses Nearby

Demographics for 03874, NH

8,542
Population
4,403
Households
1.9
Avg Household Size
51
Median Age
26%
College-Educated
91%
High-School Grad
8.9 sq mi
ZIP Area
960
Density / Sq Mi
$87,000
Median Household Income
$47,047
Median Earnings
$1,435
Median Rent
$435,100
Median Home Value

Market

Vacancy Rate% for Multifamily in Northeast region

4% 2022
4.6% 2023
5.3% 2024
5.6% 2025
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Frequently Asked Questions

What type of property is this?
Duplex - Two matching units provide flexible space for rental use, personal occupancy, or extended-family living near Seabrook Beach.
Where is this duplex located?
The property is located at 8 Nashua Street A & B Seabrook, NH.
What is the asking price?
The asking price for this property is $1,250,000.
What are key features of this property?
This property features: 2,100‑square‑foot duplex with 6 total bedrooms; Two matching units, each with living room, eat‑in kitchen, full bath, and washer; Oversized decks serve the kitchens and primary bedrooms
More about this property
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