23 Monument Square # 3, Boston MA 02129
Boston, MA 02129 • Charlestown
$1,100,000
Est. $6,520/month
About this home
OPEN HOUSES CANCELLED! Charlestown beauty on sought after Monument Square! This 1200 sq ft home all on one level features 2 bedrooms plus a study, 2 full bathrooms, 3 exposures & stunning views of the Bunker Hill Monument! Blonde hardwood floors and recessed lighting. Exposed brick accent walls throughout offer warmth & charm. Large living room w/a bay window, crown molding & Southern exposure. Handsome study/den w/a wall of arched built in bookcases and storage. Generous guest bedroom w/views. Chef's kitchen features stainless appliances, crisp white cabinetry, peninsula bar seating & a separate dedicated formal dining space. Light & bright primary bedroom w/2 double closets plus a linen closet & en suite tiled bathroom with walk in shower. 2nd full bath w/ subway tiled bathtub. In unit laundry w/extra room for storage, plus a large, private locked basement storage room. Start your New Year off in this beautiful home in an ideal location w/easy access to all Charlestown has to offer!
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Recently Sold Nearby
Property History
Market Insights
Property Timeline
Pending Sale
Jan 1, 2026
Offer accepted, sale pending
Listed for Sale
Dec 29, 2025
$1,100,000
Original listing
Agent: Sarah Herbert
Office: Charlesgate Realty Group, llc
Listed for Sale
Dec 29, 2025
$1,100,000
Original listing
Agent: Sarah Herbert
Office: Charlesgate Realty Group, llc
| Date | Event | Price | Change | $/sqft | Details |
|---|---|---|---|---|---|
| 01/01/2026 | ⏳ Pending Sale | - | - | - | Offer accepted, sale pending |
| 12/29/2025 | 🏠 Listed for Sale | $1,100,000 | - | - | Original listing |
| 12/29/2025 | 🏠 Listed for Sale | $1,100,000 | - | - | Original listing |
Tax History
| Year | Taxes | Assessment |
|---|---|---|
| 2025 | $7,657 | $999,700 |
Financial Details
Annual Property Tax
$7,657
Tax Year 2025
HOA Fee
$120
Monthly
Assessed Value
$999,700
Facts & Features
Home Facts
Type
Residential
Style
Condominium
Year Built
1890
Living Area
1,200 sq ft
Bedrooms
2
Full Baths
2
Total Rooms
5
Interior
Heating
Electric Baseboard
Cooling
Window Unit(s)
Flooring
Wood, Vinyl
Appliances
Range, Dishwasher, Disposal, Microwave, Refrigerator, Freezer, Washer, Dryer
Fireplace
None
Basement
Y
Laundry
In Unit
Features
None
Exterior
Construction
Brick, Stone
Architecture
None
Roof
None
Features
None
Pool
None
Spa
None
Fencing
None
Patio/Porch
None
Parking
Features
None
Utilities
Electric
None
Water
Public
Sewer
Public Sewer
Gas
None
Other
None
Financial
Annual Tax
$7,657
Assessed Value
$999,700
HOA & Community
HOA Fee
$120 Monthly
Fee Includes
Water, Sewer
Amenities
None
Optional Fee Includes
None
Owner-Occupied Units
4
MA Disclosures
Seller Disclosures
Condo Fees Paid 6 Months At A Time. Taxes Include City Of Boston Residential Exemption. Master Insurance Paid Yearly As A Special Assessment. Attached Floor Plan Sq Ft Approximate.
Additional Details
Possession
None
Accepted Financing
None
Structure Type
["Rowhouse"]
Unit/Building
3
Sq Ft Source
Public Record
Documents
None
County
Suffolk
Total market time (incl. prior listings)
11 days
Property Overview
Property Type
Condominium
Listing Type
For Sale
Year Built
1890
Bedrooms
2
Full Bathrooms
2
Living Area
1,200 sq ft
Total Rooms
5
Stories
1
Entry Level
3
Floor Layout
Interactive room guide
Floor Layout
Finished Area
1,200 sq ft above grade
FeaturesYes
Display Options
Room Markers
BABathroom (4)
BRBedroom (5)
DDining (1)
KKitchen (1)
LLiving (2)
OOffice (1)
Conceptual diagram based on MLS room data. It is not to scale and is not a substitute for architectural plans or on-site measurements.
Interior Features
Flooring:
Wood, Vinyl
Appliances:
Range, Dishwasher, Disposal, Microwave, Refrigerator, Freezer, Washer, Dryer
Interior Features:
Windows:
Basement:
Y
Laundry:
In Unit
Security:
Intercom
Construction & Materials
Year Built:
1890
Structure Type:
Rowhouse
Exterior Materials:
Brick, Stone
Roof:
Foundation:
Stories:
1
Heating, Cooling & Utilities
Heating:
Electric Baseboard
Cooling:
Window Unit(s)
Hot Water:
Water Source:
Public
Sewer:
Public Sewer
Energy Features:
Exterior & Lot
Exterior Features:
Patio & Porch:
Fencing:
Other Structures:
Lot Features:
Road Surface:
Parking & Garage
Parking Features:
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
Elementary Schools
10 schools
A-
Warren-Prescott K-8 School
0.2 mi
|
#85 of 352
|
Score: 51.3
Improved 4 spots from last year
-7 below state avg
507 students
Diverse
Grades PK-08
C
Harvard-Kent Elementary School
0.2 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
D
Horace Mann School for the Deaf Hard of Hearing
0.3 mi
|
#374 of 346
|
Score: 33.9
Same rank as last year
73 students
Diverse
Diverse Student Body
Grades PK-12
A
Eliot K-8 Innovation School
0.9 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
C+
Mario Umana Academy
1.0 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
St. John Elementary School
1.0 mi
Grades PK-08
East Boston Central Catholic School
1.2 mi
Grades PK-08
D
O'Donnell Elementary School
1.2 mi
|
#777 of 824
|
Score: 30.7
Dropped 52 spots from last year
-27.5 below state avg
256 students
Less Diverse
Grades PK-06
B+
Alighieri Dante Montessori School
1.3 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
C-
Kennedy Patrick J Elementary School
1.3 mi
|
#670 of 824
|
Score: 37.5
Improved 47 spots from last year
-20.7 below state avg
279 students
Less Diverse
Rising School
Grades PK-06
Middle Schools
10 schools
Middle School Academy
3.1 mi
F
Higginson/Lewis K-8 School
4.1 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
4.4 mi
Grades 05-08
A
Uncommon Schools - Roxbury Preparatory Dorchester Campus Middle School
4.6 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
4.9 mi
Mother Caroline Academy
5.0 mi
Grades 05-08
Epiphany School
5.8 mi
Grades 05-08
C
Ohrenberger School
9.2 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
0.3 mi
UP Academy
3.1 mi
High Schools
10 schools
D
Charlestown High School
0.2 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
1.4 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
2.0 mi
Grades 07-12
C
Quincy Upper School
2.1 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
2.5 mi
9 sports
• 430 athletes
Grades 07-12
A+
Boston Latin School
3.4 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
3.5 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
3.7 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
4.2 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
4.4 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
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Monthly Payment Breakdown
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Property Tax
$638
Homeowners Insurance
$200
HOA Fee
$120/mo
PMI (if <20% down)
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Payment Over Time
Year 1
95% Interest
Year 15
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Year 30
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Location
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Neighborhood
Charlestown
23 Monument Square # 3, Boston MA 02129
Boston, MA 02129
Listing Information
Listing Agent
Sarah Herbert
Listing Office
Charlesgate Realty Group, llc
Office Phone
617-587-0100
Agent MLS ID
NB114036
Office MLS ID
NB1520
Listing Data Updated
Jan 9, 2026 11:28 AM EST
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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