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Back Bay, Boston · Condominium Association

100 Beacon Street Condominiums

A 16-unit condominium community in Back Bay, Boston.

Median Sale
$5k
Price / Sq Ft
$372
Avg Days on Mkt
33 days
Sold
23
HOA Range
$391–1508/mo
Total Units
16

Market figures reflect closed sales over the last 12 months. Data sourced from MLS PIN.

Homes for Sale in 100 Beacon Street

Overview

100 Beacon Street is a 16-unit boutique condominium building constructed during the 1920s as a Classical Revival landmark where Beacon Hill meets Back Bay. The property has undergone complete restoration and renovation, preserving its architectural heritage while delivering contemporary luxury residences. Recent sales data shows a median price of $3.1 million, with units commanding approximately $1,522 per square foot.

Amenities & Features

  • 24-hour professional concierge service
  • Direct elevator access to residences
  • On-site garage parking with valet service
  • Direct garage-to-unit access available on select floors (two units per floor)
  • On-site management
  • Professionally managed condominium association

Unit Types & Layouts

The building contains residences ranging from studio apartments to full-floor homes. Half-floor units typically feature three bedrooms and two-and-a-half bathrooms, often with open floor plans connecting dining and living spaces. Full-floor residences offer four bedrooms and four-and-a-half baths, spanning over 4,000 square feet with windows on all four sides.

Interior finishes include hardwood flooring, detailed architectural moldings, and contemporary state-of-the-art kitchens. Many units feature fireplaced living rooms and formal dining areas. Several residences showcase corner exposures with premium natural light and views. Penthouse units and select upper-floor residences offer private terraces ranging from 500 to 524 square feet, some equipped with gas grills.

The building's ground floor features finely carved limestone and a grand center entrance reflecting the property's 1920s provenance.

Living at 100 Beacon Street

100 Beacon Street occupies one of Boston's most desirable addresses, positioned directly adjacent to the Boston Public Garden and Charles River Esplanade. The location provides immediate access to world-class shopping, dining, and cultural institutions throughout Back Bay. Residents enjoy the tranquility of the Public Garden and waterfront pathways steps from their residences, while remaining in the heart of the urban core.

The building attracts buyers seeking refined urban living with institutional-grade building services. Market data from six recent sales across the period indicates an average marketing time of 164 days, reflecting the competitive demand for units at this address. The boutique scale of 16 units fosters an intimate community environment while maintaining the operational sophistication of larger full-service buildings.

Recent Sales

Sold Jul 2026127 Beacon Street
$3,600
127 Beacon Street #42
1 bd · 1 ba · 550 sqft · 4 days
Sold Jun 202615 Marlborough St
$16,500
15 Marlborough St #4
3 bd · 3 ba · 2,120 sqft · 22 days
Sold Jun 2026122 Beacon
$8,000
122 Beacon #6
2 bd · 2 ba · 1,264 sqft · 149 days
Sold Jun 2026120 Beacon St
$2,800
120 Beacon St #1A
0 bd · 1 ba · 450 sqft · 22 days
Sold Jun 2026124 Beacon
$3,900
124 Beacon #1F
1 bd · 2 ba · 575 sqft · 10 days
Sold Jun 2026121 Beacon St
$1.8m
121 Beacon St #4
2 bd · 2 ba · 1,340 sqft · 8 days

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About Your 100 Beacon Street Expert

JR

Justin Rollo

100 Beacon Street Condominium Specialist · Signal Real Estate

Justin Rollo is a Massachusetts real estate expert with over a decade of experience and hundreds of South Shore transactions. He tracks every sale, pending, and price movement inside 100 Beacon Street — so whether you're buying into the community or thinking about selling, you're working with someone who knows this specific association inside and out.

Ask Justin about 100 Beacon Street →

Frequently Asked Questions

How much are condos at 100 Beacon Street selling for?

Over recent sales, units at 100 Beacon Street sold at a median of $3,100,000, about $1522 per square foot.

How many units are in 100 Beacon Street?

100 Beacon Street is a 16-unit condominium association in Boston, MA.

How fast do condos sell at 100 Beacon Street?

Recent sales at 100 Beacon Street averaged about 164 days on market, with 6 closings in the period.