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$1,750,000
79 Days On Site

156 Congress Street
Belfast, ME 04915

For Sale|Single Family Residence|Active
4
Beds
4
Total Baths
3
Full Baths
1
Partial Bath
4,775
SqFt
$366
/SqFt
2023
Built
County:
Waldo
Days online/new listing status provided by Showcase IDX.
Listing courtesy of of Better Homes & Gardens Real Estate/The Masiello Group [email protected]
Call Now: 207-292-1030
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207-292-1030
156 Congress Street156 Congress Street156 Congress Street156 Congress Street
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Monthly Payment (Est.)

$7,984
Calculator powered by Showcase IDX, a Constellation1 Company. Copyright ©2026 Information is deemed reliable but not guaranteed.

Set in the beautiful coastal town of Belfast, this thoughtfully designed, one-of-a-kind 3-4 bedroom, 3.5 bath home blends striking architecture with sustainable, net-zero living. Built for efficiency, durability, and year-round comfort, it offers a rare combination of innovation and livability. Inside, the home features a spacious, flexible layout highlighted by a remarkable 50' x 15' heated sunroom along the south side--an inviting, light-filled space that naturally warms the home in winter while remaining comfortable in summer. Open living areas provide a seamless flow for everyday living and entertaining. The commercial-ready kitchen offers exceptional functionality for serious cooking or potential business use. A large family room with mini kitchen and access to a covered porch creates an ideal gathering space for indoor-outdoor living. Adding to the home's character are several ''secret'' rooms hidden behind custom bookcases. Designed for long-term performance, the home includes an arctic slab foundation for temperature stability, closed-cell insulation, and strategic orientation to maximize seasonal sunlight. Redundant systems--including heat pumps, a propane Generac generator, and a wood stove--add efficiency and peace of mind. A 25kW solar array powers the home, often resulting in minimal to no utility bills. The roof design enhances efficiency with reflective materials for summer cooling and snow retention for winter insulation. Outdoors, enjoy a large fenced backyard and trails through the wooded portion of the lot. A 2-car attached garage adds convenience. Home is being sold furnished, so you can move right in! All just walking distance from the Belfast waterfront downtown. (Note: This property has a 3BR septic design.)

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Listing Snapshot
Price 
$1,750,000
Days On Site 
79 Days
Bedrooms 
4
Inside Area (SqFt) 
4,775 sqft
Total Baths 
4
Full Baths 
3
Partial Baths 
1
Lot Size 
1.17 Acres
Year Built 
2023
MLS® Number 
1657636
Status 
Active
Property Tax 
$12,224
HOA/Condo/Coop Fees 
N/A
Sq Ft Source 
Owner
Days online/new listing status provided by Showcase IDX.
Friends & Family
Recent Activity
4 weeks agoPrice changed to $1,750,000
4 weeks agoListing updated with changes from the MLS®
3 months agoStatus changed to Active
3 months agoListing first seen on site
Price history, status history, and update history provided by Showcase IDX.
General Features
Acres 
1.17
Attached Garage 
Yes
Energy Features 
Solar
Foundation 
Slab
Garage 
Yes
Garage Spaces 
2
Land Lease 
No
Parking 
PavedGarage Door OpenerInside EntranceAttached
Property Sub Type 
Single Family Residence
Sewer 
Private Sewer
SqFt Above 
4775
SqFt Total 
4775
Style 
Contemporary
Utilities 
Propane
Water Source 
Public
Zoning 
Residential 1
Interior Features
Appliances 
DryerRefrigeratorWasher
Basement 
None
Cooling 
Heat Pump
Electric 
Circuit BreakersPhotovoltaics Seller Owned
Fireplace 
Yes
Fireplaces 
1
Flooring 
CarpetVinyl
Furnished 
Partially
Heating 
ElectricPropaneWoodHeat PumpWood Stove
Interior 
Kitchen IslandPantryMaster Downstairs
Laundry Features 
Main LevelUpper Level
Bedroom 3 
Dimensions - 11.0x11.0Level - Second
Bedroom 4 
Dimensions - 13.0x14.0Level - Second
Family Room 
Level - Second
Kitchen 
Level - First
Living Room 
Level - First
Other Room 
Level - Second
Other Room 2 
Level - Second
Other Room 3 
Level - Second
Primary Bedroom 
Dimensions - 15.0x13.0Level - First
Sunroom 
Dimensions - 50.0x15.0Level - First
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Exterior Features
Construction Details 
Steel SidingFrameMetal Siding
Fencing 
Fenced
Lot Features 
Level
Pool Features 
Above Ground
Roof 
Metal
Listing courtesy of of Better Homes & Gardens Real Estate/The Masiello Group [email protected]



Listing data is derived in whole or in part from the Maine IDX and is for consumers' personal, noncommercial use only. Dimensions are approximate and not guaranteed. All data should be independently verified. © 2026 Maine Real Estate Information System, Inc. All Rights Reserved.
Last checked 2026-07-01 08:59 PM UTC

Neighborhood & Commute
Source: Walkscore
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