Studio / 1 Bath Unit 25Q
$3,405/mo
550 ft² · $6.19/ft²
Available: Nov 10, 2026
Down $5 since Oct 10 (was $3,410)
Updated
660 Washington Apartments
660 Washington St, Boston, MA 02111, USA
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Live pricing, refreshed
17
Units Listed
$3,405
Starting at
$4,355
Average
$6,095
Highest
$5.18
Per Sq Ft
Avg Days Listed
How does this compare? View Chinatown rent trends
Beds
Pricing by Bedroom
Studio
$3,405
from $3,405 · 2 units
~555 sqft avg
1 Bed
$4,030
from $3,720 · 10 units
~786 sqft avg
2 Bed
$5,384
from $5,090 · 5 units
~1,068 sqft avg
Rent Distribution
Price by Bedroom
Price Breakdown
Rent by Unit
Price vs. Square Footage
Price History
Timeframe
Property Price Trend
History follows your bedroom selection. Current rent limits and move-in dates do not change past averages.
Units with Price Changes (17)
Largest 8 movers of 17
Last 15 days
Estimated Building Revenue
How is this calculated?
Rental revenue model
We follow each unit's listing activity at this building every day. When a unit stops being listed, we assume it leased at its last listed rent, adjusted for any advertised move-in special. Revenue is the sum of those assumed lease rents across the building's occupied units.
- Building size: modeled from how many distinct units we have observed over time
- Occupancy: building size minus currently listed units
- Rents: observed lease-offs first, current asking rents as fallback
These are research estimates, not financial statements from the operator. Confidence: moderate (building size is modeled).
Est. Monthly Revenue
$1.1M
$13M annual run rate
Modeled estimate
Est. Occupancy
93%
of about 251 units (modeled from leasing activity)
Effective Rent on New Leases
$4,795
vs $4,355 current asking
Recent Lease Activity
67 units tracked; 50 assumed leased, 17 listed nowSee which units leased, when they left the market, and the rent they leased at.
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How is this calculated?
Negotiation Leverage Score (0-100)
Based on 5 observable signals from the property's listing data:
- +30 pts: 15+ units currently listed
- +25 pts: Active move-in specials
- +20 pts: Deep discounts (>$150/mo off)
- +15 pts: 5+ distinct floor plans
- +10 pts: 25+ units listed
All signals come directly from the property's own listings. Occupancy and building size appear only in the Estimated Building Revenue section, and only when the building size is stated by the property or our unit-level observation history is deep enough to model it.
Listed Units
17
Good availability
14 floor plans
Move-in Specials
0
No active promotions
Negotiation Leverage
Moderate leverage
Some signals suggest room to negotiate, especially if you can be flexible on move-in date.
Price vs. Boston, MA
Similar The Victor by Windsor $1,544 Ora Seaport Apartments $3,136 Ink Block $3,229 The Kensington $3,325 Park Lane Seaport $3,334 $3,477
660 Washington Apartments $3,405
One Greenway Comparing this building against 6 similar Boston, MA apartments by price. Click any bar to view that building.
See rent trends on the Boston, MA map Explore Boston, MA on the interactive map
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Available Units
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Studio / 1 Bath Unit 14M
$3,405/mo
560 ft² · $6.08/ft²
Available: Now
Down $5 since Oct 10 (was $3,410)
1 Bed / 1 Bath Unit 09L
$3,720/mo
715 ft² · $5.20/ft²
Available: Dec 10, 2026
Up $5 since Oct 10 (was $3,715)
1 Bed / 1 Bath Unit 12A
$3,730/mo
745 ft² · $5.01/ft²
Available: Dec 16, 2026
Up $10 since Oct 10 (was $3,720)
1 Bed / 1 Bath Unit 14H
$3,925/mo
642 ft² · $6.11/ft²
Available: Oct 29, 2026
Down $80 since Oct 10 (was $4,005)
1 Bed / 1 Bath Unit 19A
$3,950/mo
745 ft² · $5.30/ft²
Available: Dec 9, 2026
Down $65 since Oct 10 (was $4,015)
1 Bed / 1 Bath Unit 07C
$4,010/mo
842 ft² · $4.76/ft²
Available: Nov 10, 2026
Down $20 since Oct 10 (was $4,030)
1 Bed / 1 Bath Unit 20A
$4,015/mo
745 ft² · $5.39/ft²
Available: Now
Down $150 since Oct 10 (was $4,165)
1 Bed / 1 Bath Unit 06G
$4,045/mo
882 ft² · $4.59/ft²
Available: Nov 10, 2026
1 Bed / 1 Bath Unit 19K
$4,155/mo
685 ft² · $6.07/ft²
Available: Nov 23, 2026
Down $60 since Oct 10 (was $4,215)
| Unit | Floor Plan | Listed | Details | |||||
|---|---|---|---|---|---|---|---|---|
| 25Q | | Studio / 1ba | 550 | $3,405 | $6.19 | Nov 10, 2026 | Pro | Down $5 since Oct 10 |
| 14M | | Studio / 1ba | 560 | $3,405 | $6.08 | Now | Pro | Down $5 since Oct 10 |
| 09L | | 1bd / 1ba | 715 | $3,720 | $5.20 | Dec 10, 2026 | Pro | Up $5 since Oct 10 |
| 12A | | 1bd / 1ba | 745 | $3,730 | $5.01 | Dec 16, 2026 | Pro | Up $10 since Oct 10 |
| 14H | | 1bd / 1ba | 642 | $3,925 | $6.11 | Oct 29, 2026 | Pro | Down $80 since Oct 10 |
| 19A | | 1bd / 1ba | 745 | $3,950 | $5.30 | Dec 9, 2026 | Pro | Down $65 since Oct 10 |
| 07C | | 1bd / 1ba | 842 | $4,010 | $4.76 | Nov 10, 2026 | Pro | Down $20 since Oct 10 |
| 20A | | 1bd / 1ba | 745 | $4,015 | $5.39 | Now | Pro | Down $150 since Oct 10 |
| 06G | | 1bd / 1ba | 882 | $4,045 | $4.59 | Nov 10, 2026 | Pro | |
| 19K | | 1bd / 1ba | 685 | $4,155 | $6.07 | Nov 23, 2026 | Pro | Down $60 since Oct 10 |
Unit Details
Chart
Train activity
Train activity nearby
Freight line 2,118 ft away
- Trains pass infrequently
- No road crossing within earshot. Horns unlikely.
- Operator: ATK
City Club
Resident Notes & Access Codes
Real tips from people who lived at this property: what leasing and daily living are actually like, plus the gate, parking, and entry codes you only learn once you move in. See all Boston, MA notes
No resident notes for this property yet.
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Chinatown Rent Trends
See how rent prices are changing in Chinatown and across Boston, MA.