Flats on First embodies the best of boutique living, combining the luxuries of a modern apartment community with the comforts of a close-knit neighborhood. Come home to a place of sophistication and serenity in East Cambridge.
Apartment for rent
$3,967/mo
21 Charles St, # 418B, Cambridge, MA 02141
1beds
767sqft
This listing now includes required monthly fees in the total monthly price. Price shown reflects the lease term provided. Learn more|
Apartment
Available Fri Sep 18 2026
Cats, dogs OK
In unit laundry
Garage parking
Other
What's special
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Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 1
- Bathrooms: 1
- Full bathrooms: 1
Heating
- Other
Appliances
- Included: dryer, washer
- Laundry: In Unit, Other
Features
- Other, Storage
- Flooring: Vinyl
Interior area
- Total interior livable area: 767 sqft
Property
Parking
- Parking features: Deck, Direct Access, Garage, Open, Other, Storage
- Has garage: Yes
- Has uncovered spaces: Yes
- Details: Contact manager
Features
- Patio & porch: Deck, Other, Patio
- Exterior features: Barbecue, Other, Storage
- Has view: Yes
- View description: Roof Deck With City Views
Lot
- Features: Landscaped, Other, Views
Details
- Additional structures: Garage(s), Other, Storage
- Other equipment: Intercom, Other
Construction
Type & style
- Home type: Apartment
- Property subtype: Apartment
Building
Details
- Building name: Flats on First
Management
- Pets allowed: Yes
Community & HOA
Community
- Features: Fitness Center, Gated, Other
- Security: Other
HOA
- Amenities included: Fitness Center, Game Room, Other, Parking, Roof Deck, Storage
Location
- Region: Cambridge
Financial & listing details
- Lease term: 12 Months
Price history
| Date | Event | Price |
|---|---|---|
| 7/24/2026 | Listed for rent | $3,967+2.5%$5/sqft |
Source: Zillow Rentals Report a problem | ||
| 7/4/2024 | Listing removed | -- |
Source: Zillow Rentals Report a problem | ||
| 7/3/2024 | Listed for rent | $3,871$5/sqft |
Source: Zillow Rentals Report a problem | ||
Neighborhood: East Cambridge
Nearby schools
GreatSchools rating
- 5/10Kennedy-Longfellow SchoolGrades: PK-5Distance: 0.4 mi
- 8/10Vassal Lane Upper SchoolGrades: 6-8Distance: 0.5 mi
- 8/10Cambridge Rindge and Latin SchoolGrades: 9-12Distance: 1.8 mi
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There are 7 available units in this apartment building