Rare top-floor penthouse at Spy Pond Condominium! This bright, 2-bedroom, 1.5-bath waterfront residence features hardwood floors throughout, an open-concept living and dining area, and a modern kitchen with granite countertops. Four separate sliding glass doors in the unit lead to a spacious 450 sq ft private deck for outdoor relaxation/entertainment and scenic pond views. The primary suite includes a half bath and deck access. Convenience is enhanced by in-unit laundry, wall AC, an intercom system, elevator access, dedicated storage, and two deeded off-street parking spots. Spend time on the landscaped grounds or launch kayaks from the association dock! The monthly fee covers heat, hot water, exterior maintenance, snow removal, elevator service, and dock privileges. Located in East Arlington on the Minuteman Bikeway, near Mass Ave dining, the Capitol Theatre, Spy Pond Park, Arlington Boys and Girls Club, Route 2, and about 1 mile from Alewife T-Station.
East Arlington, located between Alewife Brook Reservation and Arlington Center, is a walkable and historic Arlington neighborhood with a river-edge greenway and a compact village main street. The neighborhood’s character concentrates around Massachusetts Avenue at Lake Street, where indie cafes, bakeries, and small storefronts keep the sidewalks busy. Local pillars include Capitol Theatre & Lounge, Kickstand Cafe, and Menotomy Grill & Tavern. Housing leans toward classic New England two-families and porch-fronted Victorians, with pockets of mid-century apartments near the Cambridge line. The Minuteman Bikeway threads through, linking daily errands to longer rides. Spy Pond and the Alewife Brook paths add water views and a quieter counterpoint to Mass Ave.
Provided by Walk Score and Local Logic
Offer insights
20 Hamilton Rd #401 · $850,000
$851K and above
75% chance or better to win
Why $851K+ is a strong offer
DAYS ON MARKET
32 days
The average home goes pending in 42 days.
SALE-TO-LIST
98.8%
Most homes are selling 1% below list price.
About offer insights
Property details
Interior
Exterior
Finance
Kitchen
Bathroom
Bedroom
Living
Interior features
Intercom
Storm windows
Total of 5 rooms
Bedrooms
Primary bedroom on the first floor with closet, hardwood flooring, half bathroom access, and exterior deck with slider
Second bedroom on the first floor with closet and hardwood flooring
Bathrooms
One full bathroom on the first floor with tiled tub/shower and stone/ceramic tile flooring
One half bathroom on the first floor with stone/ceramic tile flooring
Kitchen
Stone/granite/solid countertops
Stainless steel appliances
Range
Microwave
Refrigerator
Laundry & utility
In-unit laundry with washer and electric dryer hookup
Washer hookup available
Dryer hookup (electric)
Flooring
Hardwood flooring throughout primary living areas
Stone/ceramic tile in bathrooms
Heating & cooling
Electric baseboard heating
Wall cooling units
Exterior features
Deck (roof) / rooftop deck
Waterfront on a pond with dock/mooring, frontage and water access
Waterview of a pond
Home design
Condominium in the Spy Pond Condominium building
Low-rise building, single-story unit
Entry level 4
Parking
Two off-street deeded parking spaces
Security
Intercom building entry
Construction
Brick construction
Tar and gravel roof
Built (year per public records)
Utilities
Public water
Public sewer
Electric with circuit breakers
Electrical hookups for electric range, electric oven, and electric dryer
HOA & community
Monthly association fee ($1,067) includes heat, water, sewer, insurance, building and grounds maintenance, snow removal and trash
Association amenities include hot water, elevator(s), boat dock, storage, and garden area
Pets allowed with restrictions
Other
Access to community features: public transportation, shopping, tennis courts, parks, walk/jog trails, medical facility, bike path, conservation area, highway access, houses of worship, and schools; T-Station nearby
Electricity and solar
View estimated energy costs and solar savings for this home
Simply spectacular! Rarely available penthouse,1 of only 4 in the complex. Idyllic water views & 4 sets of sliders to your huge private deck overlooking Spy Pond. If you can tear yourself away from the views, inside you'll find an open layout, large living room, stellar kitchen renovation with Jenn Air appliances & Ceasarstone counters, beautifully renovated full bath with Bosch W/D, master bedroom overlooking the water & a 2nd BR. Adjacent to the bike path. Two parking spaces. OH Sat/Sun 12-1
Public Records
May 14, 2004
Sold
$419,000
$342/sq ft
Public Records
Oct 1, 1989
Sold
$180,000
$147/sq ft
Year
Property tax
Land + Additions
Assessment*
2026
$7,688 (+4.0%)
$720,500
2025
$7,391 (+4.1%)
$686,300
2024
$7,098 (−1.6%)
$670,300
2023
$7,215 (+1.0%)
$643,600
2022
$7,147 (+2.2%)
$625,800
2021
$6,996 (+5.6%)
$616,900
2020
$6,627 (+4.7%)
$599,200
2019
$6,331 (+12.6%)
$562,300
2018
$5,622 (+4.0%)
$463,500
2017
$5,407 (−1.9%)
$430,500
2016
$5,510 (+4.7%)
$430,500
2015
$5,264 (+2.3%)
$388,500
2014
$5,146 (+1.3%)
$373,200
2013
$5,079 (+4.8%)
$373,200
2012
$4,847 (+10.1%)
$354,800
2011
$4,403 (+2.5%)
$354,800
2010
$4,297 (−1.7%)
$354,800
2009
$4,370
$366,600
Public record
Public record
Zoning
Beds
2
Baths
1.5
Stories
1
Lot width
—
Lot depth
—
Lot size
—
Year renovated
—
Finished Sq. Ft.
1,224
Unfinished Sq. Ft.
—
Total Sq. Ft.
1,224
Year built
1985
Style
Condo/Co-op
County
Middlesex County
APN
178016S
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Sep 23, 2026.
R6
Apartment District/Medium Density
The predominant land uses in the Medium-Density Apartment District consist of a mix of apartments up to four Stories high and offices at a smaller scale. The Town discourages uses which would detract from the desired residential and office character or otherwise interfere with the intent of this Bylaw.
Arlington's location paired with its diverse housing stock of houses and condos has made it a desirable extension of the ever-popular Cambridge market. It is no longer a "backup" town, and has the convenience of what used to be called a "streetcar...
This home ranks in the top 24% for direct sun exposure in Arlington. There appears to be minimal shading by surrounding buildings, terrain, and vegetation.
9.8 hrs
5 hrs
JuneDecember
Provided by Shadowmap
Redfin Estimate for 20 Hamilton Rd #401
$851,549
$1,549 over list price of $850K
Nearby comparable homes
The Redfin Estimate uses 6 recent nearby sales, priced between $725K to $881K.