Bright, stylish, and practically brand new—this Superior gem has it all. Built in 2023 and surrounded by million-dollar properties, this HERS-certified, energy-efficient home perfectly combines modern design and comfort—and best of all, there’s no HOA. Hardwood floors flow throughout the main level, complemented by stylish lighting and custom top-down, bottom-up blinds for ideal light and privacy control. The kitchen impresses with quartz countertops, t ile backsplash, stainless steel appliances including a gas range, abundant cabinet and prep space plus a huge walk-in pantry. Upstairs are three spacious bedrooms, including a vaulted ceiling primary suite with dual sinks, a walk-in closet, linen closet, and custom tiled shower. The upstairs laundry includes washer and dryer for easy move-in. The finished basement, with high ceilings and an egress window, offers flexible space for a media room, home gym, or easy conversion into a fourth bedroom, complete with a stylish three-quarter bath. Outdoor living is exceptional, with two separate fenced areas perfect for pets, gardening, or outdoor dining. The 2 car garage is finished and insulated. A Level 3 fire mitigation system provides added peace of mind. Enjoy views of the Boulder Flatirons and an unbeatable location—just steps from Founders Park and the beautiful 14-mile Coal Creek soft-surface trail, offering scenic hiking, biking, and wildlife viewing that connects Superior and Louisville. Enjoy convenient access to Hwy 36, nearby amenities like Costco, Whole Foods, and the RTD Park-n-Ride. Located within the highly sought-after Boulder Valley RE-2 School District, this home offers the perfect blend of modern design, energy efficiency, and the best of Colorado living.
Sold for $842,500
$842,500
404 W William Street #B, Superior, CO 80027
3beds
2,649sqft
Duplex
Built in 2023
6,964 Square Feet Lot
$834,000 Zestimate®
$318/sqft
$4,114 Estimated rent
Home value
$834,000
$776,000 - $892,000
$4,114/mo
Zestimate® history
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Zillow last checked:
Listing updated:
Listed by:
Cameron Racine 720-212-6069 cameron@bhhsrockies.com,
Berkshire Hathaway HomeServices RE of the Rockies
Bought with:
Jodie Ann Walko, 40040972
Keller Williams Preferred Realty
Source: REcolorado as distributed by MLS GRID,MLS#: 7540494
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 3
- Bathrooms: 4
- 3/4 bathrooms: 3
- 1/2 bathrooms: 1
- Main level bathrooms: 1
Bedroom
- Features: Primary Suite
- Level: Upper
Bedroom
- Level: Upper
Bedroom
- Level: Upper
Bathroom
- Level: Main
Bathroom
- Features: En Suite Bathroom, Primary Suite
- Level: Upper
Bathroom
- Level: Upper
Bathroom
- Level: Basement
Great room
- Level: Basement
Kitchen
- Level: Main
Laundry
- Level: Upper
Living room
- Level: Main
Utility room
- Level: Basement
Heating
- Forced Air
Cooling
- Air Conditioning-Room
Appliances
- Included: Dishwasher, Disposal, Dryer, Freezer, Gas Water Heater, Microwave, Oven, Range, Refrigerator, Washer
- Laundry: In Unit
Features
- Ceiling Fan(s), Eat-in Kitchen, Entrance Foyer, High Ceilings, High Speed Internet, Kitchen Island, Open Floorplan, Pantry, Primary Suite, Quartz Counters, Radon Mitigation System, Smoke Free, Vaulted Ceiling(s)
- Flooring: Carpet, Laminate, Tile, Wood
- Windows: Double Pane Windows, Window Coverings
- Basement: Finished
- Common walls with other units/homes: 1 Common Wall
Interior area
- Total structure area: 2,649
- Total interior livable area: 2,649 sqft
- Finished area above ground: 1,857
- Finished area below ground: 645
Property
Parking
- Total spaces: 2
- Parking features: Concrete, Dry Walled, Exterior Access Door, Insulated Garage, Lift, Lighted
- Attached garage spaces: 2
Features
- Levels: Two
- Stories: 2
- Entry location: Exterior Access
- Patio & porch: Patio
- Exterior features: Lighting, Private Yard
- Fencing: Partial
- Has view: Yes
- View description: Meadow
Lot
- Size: 6,964 Square Feet
- Features: Fire Mitigation, Irrigated, Landscaped, Level, Sprinklers In Front, Sprinklers In Rear
Details
- Parcel number: R0611735
- Zoning: XSU
- Special conditions: Standard
Construction
Type & style
- Home type: SingleFamily
- Architectural style: Contemporary
- Property subtype: Duplex
- Attached to another structure: Yes
Materials
- Concrete, Frame, Wood Siding
- Foundation: Slab
- Roof: Composition
Condition
- New Construction
- New construction: Yes
- Year built: 2023
Details
- Builder name: Porchfront Homes
Utilities & green energy
- Electric: 110V, 220 Volts
- Sewer: Public Sewer
- Water: Public
- Utilities for property: Cable Available, Electricity Connected, Internet Access (Wired), Natural Gas Connected, Phone Available
Green energy
- Energy efficient items: Appliances, Construction, Doors, HVAC, Insulation, Lighting, Roof, Water Heater, Windows
Community & HOA
Community
- Security: Carbon Monoxide Detector(s), Smoke Detector(s)
- Subdivision: Old Superior
HOA
- Has HOA: No
Location
- Region: Superior
Financial & listing details
- Price per square foot: $318/sqft
- Tax assessed value: $1,058,600
- Annual tax amount: $7,390
- Date on market: 10/17/2025
- Listing terms: Cash,Conventional,FHA,VA Loan
- Exclusions: Staging Items.
- Ownership: Individual
- Electric utility on property: Yes
Price history
| Date | Event | Price |
|---|---|---|
| 12/2/2025 | Sold | $842,500-0.9%$318/sqft |
Source:  REcolorado as distributed by MLS GRID #7540494 Report a problem | ||
| 11/4/2025 | Pending sale | $850,000$321/sqft |
Source: REcolorado as distributed by MLS GRID #7540494 Report a problem | ||
| 10/17/2025 | Listed for sale | $850,000+64.1%$321/sqft |
Source: REcolorado as distributed by MLS GRID #7540494 Report a problem | ||
| 6/13/2023 | Listing removed | -- |
Source: Zillow Rentals Report a problem | ||
| 6/2/2023 | Listed for rent | $3,500$1/sqft |
Source: Zillow Rentals Report a problem | ||
| 12/13/2019 | Sold | $518,000$196/sqft |
Source:  IRES as distributed by MLS GRID #897216 Report a problem | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | $7,390 +115.3% | $66,163 -11.8% |
| 2024 | $3,432 +3161.2% | $75,007 +99.3% |
| 2023 | $105 | $37,630 +3640.6% |
| 2022 | -- | $1,006 -97.9% |
| 2021 | $3,944 | $46,840 +24.8% |
| 2020 | $3,944 | $37,538 |
Find assessor info on the county website
Neighborhood: 80027
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Nearby schools
GreatSchools rating
- 6/10Monarch K-8 SchoolGrades: PK-8Distance: 1.4 mi
- 10/10Monarch High SchoolGrades: 9-12Distance: 1.6 mi
Schools provided by the listing agent
- Elementary: Monarch K-8
- Middle: Monarch K-8
- High: Monarch
- District: Boulder Valley RE 2
Source: REcolorado as distributed by MLS GRID. This data may not be complete. We recommend contacting the local school district to confirm school assignments for this home.
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Estimated market value
$834,000
Get a cash offer in 3 minutes
Find out how much your home could sell for in as little as 3 minutes with a no-obligation cash offer.
Estimated market value
$834,000
- Colorado
- Boulder County
- Superior
- 80027
- 404 W William Street Unit B
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