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31 Main Street # D, Boston MA 02129

Boston, MA 02129 • Charlestown
$1,290,000
Est. $8,031/month
3
Beds
1.5
Baths
1,473
Sq Ft
$876
Price/Sq Ft
0.03
Acres
1987
Year Built
Condominium
Type
15
Days on Market
Closed Listed Feb 5, 2026 • MLS# 73474845 Copied!

About this home

This spacious 3BR/1.5BA, 1473sf, penthouse duplex is located in the heart of the gas light district near City Square Park. The main living level has a wonderful open layout between living, dining and kitchen areas – perfect for entertaining. The spacious living room features a sunny Southwest exposure, wood burning fireplace and handsome mantel, and flows to the elegant dining area, complete with custom built-in hutch - great for storage and food service. The sleek kitchen features a large quartz topped peninsula with storage, stainless appliances, white cabinetry and penny tile backsplash. A well-appointed half bath, and spacious bedroom with large, custom walk-in closet, and egress to a deck, complete this level. The top floor primary bedroom features a custom walk-in closet and offers a two-tiered deck with views up to Training Field Park area and the Monument. An additional oversized bedroom features built-in cabinetry and 4 skylights. In-unit W/D, C/Air and private storage.

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Public Records

Current Owner

Owner BRADY CATHERINE A
Mailing Address 31 MAIN ST #31D, CHARLESTOWN, MA, 02129

Land Use

Use Code 102
Description Condominium
Style Row Middle

Tax Information

Assessed Value $961,100
Tax Rate $10.29 per $1,000
Base Tax $9,890
CPA Surcharge 1% ($89)
Estimated Annual Tax $9,978

Assessment History

Year Land Building Total Change
FY2023 $0 $556,700 $556,700 —

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
Match: address_condo (90.0% confidence) · Data as of Mar 8, 2026

Property Overview

Property Type
Condominium
Listing Type
For Sale
Year Built
1987
Bedrooms
3
Full Bathrooms
1
Half Bathrooms
1
Living Area
1,473 sq ft
Total Rooms
5
Stories
2
Entry Level
3
Main Level Bedrooms
1

Sale Statistics

Sale Overview
Original List Price: $1,269,000
Final Sale Price: $1,290,000
Difference: +$21,000 (+1.7%)
Performance Metrics
101.7%
List to Sale Ratio
Sold above asking price
15
Days on Market
Quick sale
Price per Square Foot Analysis
Original $/sq ft: $862
Sale $/sq ft: $876
This property sold for $876 per square foot
Sale Summary

This property sold for 1.7% above the original asking price, indicating strong buyer demand.

With only 15 days on market, this was a quick sale compared to typical market conditions.

Nearby Sales Comparison

Based on 35 similar properties sold within 0.5 miles in the last 90 days

This Property
$876/sq ft
Area Average
$517/sq ft
Difference
+69.5%

This property sold for significantly more per square foot than similar nearby properties, suggesting premium features or condition.

Facts & Features

Central AC

Home Facts

Type Residential
Style Condominium
Year Built 1987
Living Area 1,473 sq ft
Lot Size 0.03 acres
Bedrooms 3
Full Baths 1
Half Baths 1
Total Rooms 5

Interior

Heating Forced Air, Heat Pump, Electric, Unit Control
Cooling Central Air
Flooring Wood, Tile, Marble, Flooring - Hardwood
Appliances Range, Dishwasher, Disposal, Microwave, Refrigerator, Freezer, Washer, Dryer
Fireplace Dining Room, Living Room
Fireplaces 1
Basement Y
Laundry Third Floor, In Unit
Features Home Office

Exterior

Construction Brick, Stone
Architecture None
Roof Shingle
Features Deck - Wood, Balcony
Pool None
Spa None
Fencing None
Patio/Porch Deck - Wood

Parking

Features On Street

Utilities

Electric None
Water Public
Sewer Public Sewer
Gas None
Other For Electric Range

Financial

Annual Tax $9,011
Assessed Value $1,071,600

Interior Features

Flooring: Wood, Tile, Marble, Flooring - Hardwood
Appliances: Range, Dishwasher, Disposal, Microwave, Refrigerator, Freezer, Washer, Dryer
Interior Features: Home Office
Windows: Skylight(s), Insulated Windows
Basement: Y
Laundry: Third Floor, In Unit
Security:

Construction & Materials

Year Built: 1987
Structure Type: Low-Rise
Exterior Materials: Brick, Stone
Roof: Shingle
Foundation:
Stories: 2

Heating, Cooling & Utilities

Heating: Forced Air, Heat Pump, Electric, Unit Control
Heating Zones: 2
Cooling: Central Air
Cooling Zones: 2
Hot Water:
Water Source: Public
Sewer: Public Sewer
Energy Features:

Exterior & Lot

Exterior Features: Deck - Wood, Balcony
Patio & Porch: Deck - Wood
Fencing:
Other Structures:
Lot Features:
Road Surface:

Parking & Garage

Parking Features: On Street

Special Features

Fireplaces: 1
Fireplace Type: Dining Room, Living Room
Community Amenities: Public Transportation, Shopping, Pool, Tennis Court(s), Park, Walk/Jog Trails, Medical Facility, Laundromat, Bike Path, Highway Access, House of Worship, Marina, Private School, Public School, T-Station

Location

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Neighborhood

Charlestown

31 Main Street # D, 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
C
Harvard-Kent Elementary School
0.3 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-
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
0.5 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
0.7 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
0.8 mi
Grades PK-08
C+
Mario Umana Academy
1.1 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
1.1 mi
Grades PK-08
Advent School
1.2 mi
Grades K-06
B+
Alighieri Dante Montessori School
1.2 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
D
O'Donnell Elementary School
1.3 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
M

Middle Schools

10 schools
Middle School Academy
2.8 mi
F
Higginson/Lewis K-8 School
3.8 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
4.3 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
0.5 mi
UP Academy
2.8 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
1.5 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
3.2 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
3.3 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

Principal & Interest $0
Property Tax $751
Homeowners Insurance $200
HOA Fee $557/mo
PMI (if <20% down) $0

Loan Summary

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Payment Over Time

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

Market Insights

Property Timeline

⏳
Pending Sale
Feb 8, 2026
Offer accepted, sale pending
🏠
Listed for Sale
Feb 5, 2026
$1,269,000
Original listing
Agent: Nancy Roth Office: Gibson Sotheby's International Realty

Price & Status History

Date Event Price Change
Feb 5, 2026 New Listing Added $1,269,000 —

Market Statistics

Days on Market
15 days
Price per Sq Ft
$876

Tax History

Year Taxes Assessment
2026 $9,011 $1,071,600

Financial Details

Annual Property Tax
$9,011
Tax Year 2026
HOA Fee
$557
Monthly
Assessed Value
$1,071,600

Listing Information

Listing Agent Nancy Roth
Listing Office Gibson Sotheby's International Realty
Agent MLS ID H8000088
Office MLS ID BB9059
Listing Data Updated Mar 26, 2026 7:49 PM 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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