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11-Bedroom Quadplex
For Sale
$1,699,000

20 Autumn St, Somerville, MA 02145

Somerville, MA

Property Size3,540 SF
Price / SF$479.94
Days on Market83

Property Features for 20 Autumn St

General Information

Property type Residential Multi Family
Property subtype Quadruplex
Bedrooms 11
Bathrooms 6
Full bathrooms 4
Half bathrooms 2
Rooms Bedroom 10, Bedroom 5, Bedroom 8, Bedroom 1, Bedroom 7, Bedroom 2, Bedroom 11, Bedroom 9, Bedroom 3, Bedroom 4, Bedroom 6
Elementary school Sps
Middle school Sps
High school Sps
Standard status Active
Size 3,540 SF

Building Details

Year built 1890
Listing Agency: Engel & Volkers Wellesley · Engel & Völkers
Listed By: Cindy Laughrea
Added: Jul 15 Changed: Oct 2 Last Checked: Oct 5 at 5:06PM
MLS# 73496489

Copyright © 2026 Engel & Völkers. 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.

Located at 20 Autumn Street in Somerville, this quadplex contains 3,540 square feet and was built in 1890. The property includes 11 identified bedrooms and offers a substantial multifamily configuration within an established residential setting.

The property is positioned in East Somerville near Sullivan Square and the Orange Line, the Green Line Extension, and the Broadway/Cross Bus line. Access to Boston, Cambridge, and major universities is supported by these nearby transit connections. Local dining, cafes, everyday services, and Assembly Row’s retail and entertainment district are also in the surrounding area.

Key Highlights

  • Quadplex with 3,540 square feet
  • 11 identified bedrooms
  • Built in 1890

Financial Insights

Estimated NOI and Cap Rate

NOI / Yr
$74,908
Cap Rate
4.41%
Suggested Prices Based on Cap Rates
Cap Rate 5%
$1,498,160 $1.5M
Cap Rate 7%
$1,070,114 $1.1M
Cap Rate 9%
$832,311 $832.3K
Market Conditions
NOI Build-Up for 3,540 SF
Gross rent
$112.6K $31.80/SF
− Vacancy
−$5.6K −$1.57/SF
EGI
$107.0K $30.23/SF
− OpEx
−$32.1K −$9.07/SF
NOI
$74.9K $21.16/SF
Area
Middlesex County, MA
Vacancy
4.94%
Lease Rate
$31.80 /SF/Yr
Expense Ratio
30.00%
Simulate Cap Rate and NOI
Suggested Prices Based on Cap Rates
Cap Rate 5%
$1,498,160
Cap Rate 7%
$1,070,114
Cap Rate 9%
$832,311

Alternative Uses

Best Use
Multifamily LT 5
$1.07M
$936.4K – $1.25M (±1% cap)
NOI $74,908 @ 7.0% cap · market cap 4.41%
Second Best
Apartment 5plus
$1.01M
$880.4K – $1.17M (±1% cap)
NOI $70,434 @ 7.0% cap · market cap 4.15%
Theoretical Best
Office A
$2.10M
$1.83M – $2.44M (±1% cap)
NOI $146,697 @ 7.0% cap · market cap 8.63%
Zoning and permitted uses should be independently verified with authorities.

Property Analytics

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Current Use

Quadplexes

Suggested Use

Top Pick Accounting Firm Acupuncture (Bike/Boat/Book/etc) Store Bed & Breakfast Real Estate Agency Nursing Home

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

Location Intelligence

Trade Area within ½ mile

1,983
Businesses Nearby

Demographics for 02145, MA

27,520
Population
12,669
Households
2.2
Avg Household Size
33
Median Age
55%
College-Educated
89%
High-School Grad
1.4 sq mi
ZIP Area
19,657
Density / Sq Mi
$119,167
Median Household Income
$63,629
Median Earnings
$2,377
Median Rent
$784,900
Median Home Value
Check the figures for this property Cap Rate, Value Estimation, Potential NOI and more
View Realmo Analytics

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?
Quadplex - Established Somerville multifamily property with transit connections to Boston, Cambridge, and nearby universities.
Where is this quadplex located?
The property is located at 20 Autumn St Somerville, MA.
What is the asking price?
The asking price for this property is $1,699,000.
What are key features of this property?
This property features: Quadplex with 3,540 square feet; 11 identified bedrooms; Built in 1890
More about this property
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