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19 Union Street, Boston MA 02129

Boston, MA 02129 • Charlestown
$8,500
Est. $243/month
4
Beds
3.5
Baths
2,300
Sq Ft
$4
Price/Sq Ft
1,908
Lot Sq Ft
1798
Year Built
Single Family Residence
Type
1
Days on Market
Active Listed Apr 27, 2026 • MLS# 73507820 Copied!

About this home

Situated steps from highly sought after Thompson Square is a fully renovated attached single family residence surrounded by mature planting and a picturesque landscape. This historic home has been outfitted with every modern amenity without interrupting its classic nature. The entry level offers a living room, two dining areas, powder room and an enormous cooks kitchen with direct access to a spectacular fenced in yard. The second floor provides a guest bedroom, full bath and the primary quarters with multiple closets, stunning windows lines, vaulted ceilings, a separated work study and spa like bath. Make your way to the top floor where you come upon two additional guest rooms, a third full bath and walk out access to an expansive rear sun deck. A home that must be seen to appreciate it's tranquil beauty and history.

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Public Records

Current Owner

Owner OSTRANDER HARRY M
Mailing Address 19 UNION ST, CHARLESTOWN, MA, 02129

Land Use

Use Code 101
Description Single Family
Style Row End

Tax Information

Assessed Value $1,848,400
Tax Rate $10.29 per $1,000
Base Tax $19,020
CPA Surcharge 1% ($180)
Estimated Annual Tax $19,200

Assessment History

Year Land Building Total Change
FY2023 $476,700 $1,371,700 $1,848,400 —

Municipal Context: BOSTON

Median Home Value $745,000
Avg SF Tax Bill $4,523
Residential Tax Rate $10.29/1000
CPA Surcharge 1%
County Suffolk

Property Data Comparison

Discrepancies found between MLS and assessor records.

Field Assessor MLS Match
Year built 1,870 1,798 ✗
Match: address_exact (90.0% confidence) · Data as of Apr 28, 2026

Property Overview

Property Type
Single Family Residence
Listing Type
For Rent
Year Built
1798
Bedrooms
4
Full Bathrooms
3
Half Bathrooms
1
Living Area
2,300 sq ft
Total Rooms
8
Entry Level
2

Facts & Features

Home Facts

Type Residential Lease
Style Single Family Residence
Year Built 1798
Living Area 2,300 sq ft
Lot Size 1,908 sq ft
Bedrooms 4
Full Baths 3
Half Baths 1
Total Rooms 8

Interior

Heating Natural Gas, Active Solar, Forced Air
Cooling None
Flooring None
Appliances Range, Dishwasher, Disposal, Refrigerator, Freezer, Washer, Dryer
Fireplace None
Fireplaces 1
Basement None
Laundry In Unit
Features None

Exterior

Construction None
Architecture None
Roof None
Features Deck - Roof, Fenced Yard
Pool None
Spa None
Fencing Fenced
Patio/Porch Deck - Roof

Parking

Features None

Utilities

Electric None
Water None
Sewer None
Gas None
Other None

Financial

No financial details available

Interior Features

Flooring:
Appliances: Range, Dishwasher, Disposal, Refrigerator, Freezer, Washer, Dryer
Interior Features:
Windows:
Basement:
Laundry: In Unit
Security:

Construction & Materials

Year Built: 1798
Structure Type:
Exterior Materials:
Roof:
Foundation:

Heating, Cooling & Utilities

Heating: Natural Gas, Active Solar, Forced Air
Cooling:
Hot Water:
Water Source:
Sewer:
Energy Features:

Exterior & Lot

Exterior Features: Deck - Roof, Fenced Yard
Patio & Porch: Deck - Roof
Fencing: Fenced
Other Structures:
Lot Features:
Road Surface:

Parking & Garage

Parking Features:

Special Features

Fireplaces: 1
Fireplace Type:
Community Amenities: Public Transportation, Shopping, Park, Highway Access, T-Station

Location

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Neighborhood

Charlestown

19 Union Street, Boston MA 02129

Boston, MA 02129

Walkability

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Nearby Schools

School District
Boston School District local
C-
🎓 Where Graduates Go Class of 2021
52% attend college
38% 4-Year 14% 2-Year 7% Out of State 7% Working
⚠ School Safety 2024-25
3.7% Above Average
3.2% Suspensions 0.3% In-School 0.5% Emergency
↓ 1.8% below state avg
E

Elementary Schools

10 schools
A-
Warren-Prescott K-8 School
0.3 mi | #85 of 352 | Score: 51.3
Improved 4 spots from last year
-7 below state avg
507 students Diverse
Grades PK-08
D
Horace Mann School for the Deaf Hard of Hearing
0.4 mi | #374 of 346 | Score: 33.9
Same rank as last year
73 students Diverse
Diverse Student Body
Grades PK-12
C
Harvard-Kent Elementary School
0.4 mi | #589 of 824 | Score: 41.5
Dropped 181 spots from last year
-16.7 below state avg
334 students Very Diverse
Diverse Student Body
Grades PK-06
A
Eliot K-8 Innovation School
0.8 mi | #48 of 352 | Score: 57.2
Improved 2 spots from last year
-1.1 below state avg
784 students Diverse
Strong Attendance
Grades PK-08
St. John Elementary School
0.9 mi
Grades PK-08
Advent School
1.2 mi
Grades K-06
C+
Mario Umana Academy
1.2 mi | #11 of 16 | Score: 26.9
Improved 333 spots from last year
-31.3 below state avg
634 students Less Diverse
Rising School
Grades PK-08
East Boston Central Catholic School
1.3 mi
Grades PK-08
Park Street School
1.3 mi
Grades K-07
B+
Alighieri Dante Montessori School
1.4 mi | #5 of 12 | Score: 45.3
Improved 124 spots from last year
-12.9 below state avg
109 students Diverse
Rising School
Grades PK-06
M

Middle Schools

10 schools
Middle School Academy
2.9 mi
F
Higginson/Lewis K-8 School
3.9 mi | #349 of 352 | Score: 23.6
Improved 3 spots from last year
-34.6 below state avg
213 students Diverse
Grades 03-08
Nativity Prep School
4.1 mi
Grades 05-08
A
Uncommon Schools - Roxbury Preparatory Dorchester Campus Middle School
4.4 mi | #4 of 16 | Score: 41.9
Improved 187 spots from last year
-16.3 below state avg
1,126 students Diverse
Rising School College Ready Curriculum
Grades 05-08
Dearborn Middle School
4.7 mi
Mother Caroline Academy
4.7 mi
Grades 05-08
Epiphany School
5.6 mi
Grades 05-08
C
Ohrenberger School
8.9 mi | #265 of 352 | Score: 34.9
Improved 20 spots from last year
-23.3 below state avg
477 students Diverse
Rising School Diverse Student Body
Grades 03-08
Edwards Middle
0.4 mi
UP Academy
2.9 mi
H

High Schools

10 schools
D
Charlestown High School
0.5 mi | #322 of 346 | Score: 31.0
Improved 49 spots from last year
-27.2 below state avg
754 students Diverse
11 sports • 488 athletes
Early College Program Rising School
Grades 07-12
C-
East Boston High School
1.6 mi | #305 of 346 | Score: 37.3
Improved 31 spots from last year
-20.9 below state avg
1,252 students Less Diverse
14 sports • 584 athletes
Early College Program Rising School
Grades 07-12
Newman School
1.8 mi
Grades 07-12
C
Quincy Upper School
1.8 mi | #268 of 346 | Score: 44.6
Improved 4 spots from last year
-13.6 below state avg
557 students Very Diverse
12 sports • 208 athletes
High Graduation Rate Diverse Student Body
Grades 06-12
Cathedral High School
2.3 mi
9 sports • 430 athletes
Grades 07-12
A+
Boston Latin School
3.1 mi | #19 of 346 | Score: 73.3
Improved 61 spots from last year
+15.1 above state avg
2,424 students Very Diverse
18 sports • 2,006 athletes
Strong AP Program High Graduation Rate Rising School Strong Athletics
Grades 07-12
A-
O'Bryant School of Math & Science
3.2 mi | #90 of 346 | Score: 61.1
Improved 94 spots from last year
+2.9 above state avg
1,509 students Very Diverse
High Graduation Rate Rising School College Ready Curriculum Diverse Student Body
Grades 07-12
B
Dearborn STEM Academy
3.4 mi | #13 of 25 | Score: 31.7
Improved 356 spots from last year
-26.6 below state avg
565 students Diverse
10 sports • 242 athletes
Early College Program Rising School
Grades 07-12
C
Ruth Batson Academy
4.0 mi | #19 of 25 | Score: 27.6
Improved 346 spots from last year
-30.6 below state avg
604 students Diverse
8 sports • 128 athletes
Early College Program Rising School
Grades 07-12
A+
Boston Latin Academy
4.1 mi | #2 of 25 | Score: 63.9
Improved 214 spots from last year
+5.7 above state avg
1,693 students Very Diverse
17 sports • 1,298 athletes
High Graduation Rate Rising School Strong Athletics Diverse Student Body
Grades 07-12
Learn about these ratings
School data provided by BMN Schools

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Monthly Payment Breakdown

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Homeowners Insurance $200
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Payment Over Time

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Year 1
95% Interest
Year 15
50/50
Year 30
95% Principal
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Property History

Property Timeline

🏠
Listed for Sale
Apr 27, 2026
$8,500
Original listing
Agent: Mark Ruane Office: MGS Group Real Estate LTD

Price & Status History

Date Event Price Change
Apr 27, 2026 New Listing Added $8,500 —

Market Statistics

Days on Market
1 days
Price per Sq Ft
$4

Tax History

Year Taxes Assessment
Tax history not available

Listing Information

Listing Agent Mark Ruane
Listing Office MGS Group Real Estate LTD
Agent MLS ID BB806144
Office MLS ID AN0499
Listing Data Updated Apr 27, 2026 11:13 AM EDT
Listing information is deemed reliable but not guaranteed. Data provided by MLS Property Information Network, Inc. All information should be independently verified.

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