624 Armstrong embodies the dream of owning a singular Fort Collins residence, as pristine & polished as it is historically rich. This unique gem, owned and lived in by the same family since it was built in 1951, offers a level of detail that speaks directly to the luxury client who values signature identity, unparalleled craftsmanship, and countless amenities. A total renovation beginning in 2015 elevated the classic cape-cod design with the timeless sophistication of impeccable modern fixtures and finishes. Throughout the 3411 sq ft, 4 bedroom, 2 bath home you will find oak hardwood floors, hardwood built-ins, wainscoting, crown molding, ceiling fans and plantation shutters. Bespoke brass light fixtures, paneled ceilings and leaded glass windows serve as works of art. The kitchen is lavishly outfitted with a new Cove dishwasher, Wolf induction cooktop, cherry cabinetry, quartz countertops and marble backsplash. Both bathrooms include steam showers; the primary features heated travertine floors, deep soaking tub & double sink. Undergirding design is livability and sustainability including a tankless hot water heater, R38 insulation, gas fireplace, humidifier, UV air purifier & a new trenchless sewer replacement. The heated, tandem garage is finished with slate wainscoting & equipped with a 200 amp electric port for EV charger. Discover an additional ~360 sq ft finished loft above the garage, situated beneath a charming cupola. Finally, relax & entertain in an exceptional outdoor living space, anchored by a 2nd gas fireplace, & surrounded by a canopy of mature trees. This outdoor space has been lovingly cultivated for 74 years and the result is a private, verdant retreat. All of this in the historic Mantz Addition neighborhood: a prime central location within minutes of the beautiful CSU campus, Old Town, the Lincoln Center, Dunn Elementary IB school, restaurants, shopping & every amenity.
Offered By
Susan Patchen, Berkshire Hathaway HomeServices Rocky Mountain, Realtors-Fort Collins
Electric Range, Dishwasher, Refrigerator, Bar Fridge, Microwave, Disposal, Fire Alarm
FIREPLACE FEATURES
Two or More, Gas, Gas Log
Heating
Forced Air, 2 or more Heat Sources, Humidity Control
Cooling
Central Air
Utility Features
Natural Gas Available, Electricity Available, Cable Available, Satellite Avail, High Speed Avail
WATER SOURCE
City
Year Built
1951
Basement
Partial, Partially Finished
FINISHED BASEMENT SIZE
876.0
ARCHITECTURAL STYLE
Cape Cod
Roof
Composition
EXTERIOR FEATURES
Sprinkler System, Heated Garage, Tandem Garage
Parking Features
Attached
Fence
Fenced, Wood
Lot Features
Evergreen Trees, Deciduous Trees, House Faces West, Paved, Curbs, Gutters, Sidewalks, Street Light, Water Rights Excluded
Garage spaces
2
Other Structures
Storage
CITY
Fort Collins
SUBDIVISION
Mantz Caroline
COUNTY
Larimer
AREA
Fort Collins
STATE
CO
TAX AMOUNT
5023.0
LATEST UPDATE
2026-04-06T17:12:26.644Z
PRICE CHANGE(S)
$1,500,000 Apr 6, 2026
Property Details
Property TypeResidential
StatusComing Soon
Bedrooms4
Bathrooms (Full)1
Property Sub TypeSingle Family Residence
Square Feet3,411
MLS #1055619
Bathrooms (¾)1
AppliancesElectric Range, Dishwasher, Refrigerator, Bar Fridge, Microwave, Disposal, Fire Alarm
FIREPLACE FEATURESTwo or More, Gas, Gas Log
HeatingForced Air, 2 or more Heat Sources, Humidity Control
CoolingCentral Air
Utility FeaturesNatural Gas Available, Electricity Available, Cable Available, Satellite Avail, High Speed Avail
WATER SOURCECity
Year Built1951
BasementPartial, Partially Finished
FINISHED BASEMENT SIZE876.0
ARCHITECTURAL STYLECape Cod
RoofComposition
EXTERIOR FEATURESSprinkler System, Heated Garage, Tandem Garage
Parking FeaturesAttached
FenceFenced, Wood
Lot FeaturesEvergreen Trees, Deciduous Trees, House Faces West, Paved, Curbs, Gutters, Sidewalks, Street Light, Water Rights Excluded
Garage spaces2
Other StructuresStorage
CITYFort Collins
SUBDIVISIONMantz Caroline
COUNTYLarimer
AREAFort Collins
STATECO
TAX AMOUNT5023.0
LATEST UPDATE2026-04-06T17:12:26.644Z
PRICE CHANGE(S)
$1,500,000 Apr 6, 2026
Market Trends
New Properties On Market
43
169%
Increase In New Listings
Average Asking Price
$674,488
$71,462 Increase In Avg Asking Price
Average Asking Price / Sq. Ft.
$385
$60 Increase In List Price/Sq. Ft.
Average Days On Market
8
17 Day
Decrease In Days On Market
Data as of Apr 07, 2026.
Remaining statistics above are calculated on activity within the period from Feb 01, 2026 to Mar 31, 2026.
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