Public Remarks: This is a true opportunity to own one of the finest riverfront properties in the region. There is nothing else like it. Set on 4.74 acres backing to national forest offering unmatched privacy, dramatic mountain-modern architecture, and an spectacular riverside setting. The park-like property has been recently transformed, beginning with the purchase of a neighboring parcel that expanded its footprint and extended its river frontage. The land has been meticulously cleared and landscaped while new outdoor living spaces-including two floating decks for entertaining or outdoor dining, a custom cedar greenhouse, garden shed, new fencing, and obtained river irrigation rights. Beautiful sandstone steps now grace both sides of the bridge leading to the river. A newly re-graded and rocked driveway makes arrival easy. The home and outbuildings were all recently re-stained, and sellers have mitigated the property at the direction of Wildfire Partners (pending certification). Inside, the home blends Colorado warmth and elegance. Dramatic cedar siding and hand-selected river rock define the exterior, while cathedral ceilings with Douglas fir beams and walls of glass flood the interior with natural light. The chef's kitchen features stone counters, artisan white oak cabinetry, and commercial-grade appliances. A double-sided river rock fireplace anchors the main living areas. Three spacious en-suite bedrooms, with the primary suite offering a copper soaking tub, steam shower, and private deck. Designer fixtures, custom railings, and refined finishes elevate every detail. A refurbished studio outbuilding perched on the river is ideal for a workout, yoga, or creative space. All systems have been recently serviced, making this home turnkey. Located minutes from Lyons and Allenspark and an easy drive to Boulder and Longmont, this is a property designed to be experienced. Riverfront estates of this scale, quality, and beauty rarely become available.
Single-familyProperty Type
2010Year Built
4.74 acresLot Size
$686Est. Price/Sq.Ft.
2 car garageParking
Listed by Laura Levy• Coldwell Banker Realty-Boulder
RiverHaus...One of the most magical settings in Boulder County. A rare opportunity to have a well-designed custom home with exceptional mountain modern finishes in an exquisite riverside location that backs to national forest. Private but well-located within proximity to the regions most important offerings. Mountain modern blending the finest quality with materials that enhance the natural landscape. Dramatic cedar/stone siding includes hand-selected river rocks from the property. Double-sided river rock fireplace in living/dining room is one of 3+ fireplaces . Stunning white oak engineered floors. Elegant kitchen w/ commercial grade appliances, marble counters & custom artisan white oak cabinets. 3 bedrooms w/ attached full baths. Gorgeous primary bath has copper tub & steam shower. Hand-scraped Douglas fir beams. Cathedral ceilings. Custom fabricated railings. Designer plumbing fixtures. Yoga/art studio on the river! Close to Lyons/Allenspark/hiking & not far from Boulder/Longmont.
IRES as Distributed by MLS Grid #835084
Feb 15, 2018
Sold
$552,000
$154/sq ft
Feb 5, 2018
Pending
—
Nov 10, 2017
Contingent
—
Oct 18, 2017
Listed
$650,000
$182/sq ft
+27
Public Remarks
A stone and wood master piece overlooking almost 400' of the St. Vrain river, the estate property you've awaited for, ready for your interior finishing touches. Spectacular river front setting, 3.49 acres of mountains. Main residence is ready for your dream interior, plus there is a fishing cabin. Well, septic and buried propane tank. Engineered bridge over river. Minutes to hiking trails in the Indian Peaks Wilderness or Rocky Mountain National Park.
Public Records
Aug 28, 1985
Sold
$20,000
$6/sq ft
Year
Property tax
Land + Additions
Assessment*
2025
$8,427 (+6.4%)
$6,156 + $79,688
$85,844
2024
$7,920 (+1.5%)
$6,156 + $79,688
$85,844
2023
$7,804 (−7.6%)
$1,548 + $87,656
$89,204
2022
$8,446 (−1.2%)
$5,233 + $87,656
$92,889
2021
$8,547 (+17.2%)
$6,283 + $85,471
$91,754
2020
$7,292 (+84.7%)
$6,464 + $87,930
$94,394
2019
$3,948 (+18.8%)
$8,080 + $72,715
$80,795
2018
$3,323 (+1.2%)
$8,080 + $36,365
$44,445
2017
$3,285 (+7.8%)
$6,840 + $30,888
$37,728
2016
$3,048 (+5.4%)
$6,840 + $30,888
$37,728
2015
$2,893 (+5.5%)
$9,632 + $24,739
$34,371
2014
$2,743 (−0.4%)
$9,950 + $21,890
$31,840
2013
$2,754 (+3.1%)
$9,950 + $21,890
$31,840
2012
$2,671 (+51.0%)
$9,950 + $21,890
$31,840
2011
$1,769 (+134.0%)
$11,940 + $19,183
$31,123
2010
$756 (+2.0%)
$11,940 + $10,189
$22,129
2009
$741
$7,240 + $2,310
$9,550
Tax history for 3363 Riverside Dr
Year
Property tax
Land + Additions
Assessment*
2025
$8,427 (+6.4%)
$6,156 + $79,688
$85,844
2024
$7,920 (+1.5%)
$6,156 + $79,688
$85,844
2023
$7,804 (−7.6%)
$1,548 + $87,656
$89,204
2022
$8,446 (−1.2%)
$5,233 + $87,656
$92,889
2021
$8,547 (+17.2%)
$6,283 + $85,471
$91,754
2020
$7,292 (+84.7%)
$6,464 + $87,930
$94,394
2019
$3,948 (+18.8%)
$8,080 + $72,715
$80,795
2018
$3,323 (+1.2%)
$8,080 + $36,365
$44,445
2017
$3,285 (+7.8%)
$6,840 + $30,888
$37,728
2016
$3,048 (+5.4%)
$6,840 + $30,888
$37,728
2015
$2,893 (+5.5%)
$9,632 + $24,739
$34,371
2014
$2,743 (−0.4%)
$9,950 + $21,890
$31,840
2013
$2,754 (+3.1%)
$9,950 + $21,890
$31,840
2012
$2,671 (+51.0%)
$9,950 + $21,890
$31,840
2011
$1,769 (+134.0%)
$11,940 + $19,183
$31,123
2010
$756 (+2.0%)
$11,940 + $10,189
$22,129
2009
$741
$7,240 + $2,310
$9,550
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Public record
Public record
Zoning
Beds
4
Baths
4.5
Stories
—
Lot width
—
Lot depth
—
Lot size
2.12 Acres
Year renovated
2010
Sq. Ft.
3,409
Year built
2010
Style
Single Family Residential
County
Boulder County
APN
R0053523
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Sep 2, 2026.
F
Forestry District
Rural areas established for the purpose of efficiently using land to conserve forest resources, protect the natural environment, and preserve open areas.
Permitted uses
Include but are not limited to:
Agriculture
Equestrian facility
Livestock production
Housing-Group
Housing-Single unit
Bed & breakfast
Office
Public service
Communications tower
Park & open space
Property details
Parking
Parking Features
Covered Spaces: 2
Garage: Yes
Attached Garage: Yes
Garage Spaces: 2
Parking Features: RV/Boat Parking, Heated Garage
Interior
Virtual Tour Information
Virtual Tour 1 Caption: 3D Virtual Tour
Virtual Tour 1 MLS Source: IRES MLS
Virtual Tour 2 Caption: Digital Brochure
Virtual Tour 2 MLS Source: IRES MLS
Virtual Tour 3 Caption: Feature Video
Virtual Tour 3 MLS Source: IRES MLS
Bathroom Information
Bathrooms (Full): 2
Bathrooms (Half): 1
Bathrooms (Three Quarter): 2
Bedroom Information
Bedrooms Total: 4
Heating & Cooling
Cooling: Yes
Whole House Fan
Heating: Yes
Radiant
Interior Features
Gas Range/Oven, Double Oven, Dishwasher, Refrigerator, Washer, Dryer, Water Purifier Owned
Study Area, Eat-in Kitchen, Separate Dining Room, Cathedral/Vaulted Ceilings, Open Floorplan, Pantry, Walk-In Closet(s), Kitchen Island, Steam Shower, 9ft+ Ceilings, Beamed Ceilings
Laundry Features: Washer/Dryer Hookups, Main Level
Room Information
Basement: None
Exterior
Exterior Features
Balcony
Fencing: Partial
Patio and Porch Features: Patio, Deck
Roof: Composition
Land Information
Road Surface Type: Paved, Asphalt
Lot Information
Horse(s): No
Lot Features: Wooded
Other Structures: Storage
Zoning: F
Property Information
Property Type: Residential
View: Yes
Waterfront: Yes
Abuts Stream/Creek/River
Subdivision Information
Subdivision Name: Alpine
MLS Area Major: Suburban Mountains
Building Information
Above Grade Finished Area: 3577
Below Grade Finished Area: 0
Building Area Total: 3577
Construction Materials: Wood/Frame, Stone, Wood Siding
Financial
Tax Information
Parcel Number: R0053523
Tax Annual Amount: 10506.62
Tax Year: 2024
Financial Information
Listing Terms: Cash, Conventional
Utilities
Utility Information
Utilities: Electricity Available, Propane
Electric: Electric,Xcel
Sewer: Septic
Location
HOA Information
Association: No
School Information
High School District: ST Vrain Dist RE 1J
Elementary School: Lyons
Middle or Junior School: Lyons
High School: Lyons
Location Information
Directions: From Lyons take Hwy 7 towards Allenspark. Take the Raymond exit (Riverside Dr), which is 1/4 mile west of mile marker 20. At the bottom of the hill, veer right (Raymond Store Cabins will be on your left). Bridge to house will be on your left side.
Unparsed Address: 3363 Riverside Dr Lyons CO 80540
Street Number: 3363
Street Name: Riverside
Street Suffix: Dr
City: Lyons
State or Province: CO
County or Parish: Boulder
Country: US
Postal Code: 80540
Coordinates: -105.46848,40.15008
Latitude: 40.15008
Longitude: -105.46848
Public facts
Beds: 4
Baths: 4.5
Sq. Ft.: 3,409
Stories: —
Lot Size: 2.12 acres
Style: Single Family Residential
Year Built: 2010
Year Renovated: 2010
County: Boulder County
APN: R0053523
Home facts updated by county records on Sep 2, 2026
Other
Miscellaneous Information
Exclusions: All sellers personal property and staging items
Listing Information
Attribution Contact: 3039318080
Close Price: $2,750,000
Photos Count: 50
Possible Use: Single Family
Special Listing Conditions: Private Owner
Standard Status: Closed
Listing Date Information
Close Date: Friday, October 17, 2025
Cumulative Days on Market: 81
Days on Market: 81
Listing Contract Date: Tuesday, July 29, 2025
Modification Timestamp: Friday, October 17, 2025 3:51 PM
Home Information
Door Features: French Doors
Levels: Two
Window Features: Window Coverings, Double Pane Windows
Year Built: 2010
Green Information
Green Energy Efficient: Energy Survey Complete
Around this home
Schools
Lyons Elementary School
Public PreK-5 • Assigned • 11.7mi
7/10
Lyons Middle/Senior High School
Public 6-12 • Assigned • 11.6mi
9/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Climate risks
10/10 Flood Factor
Estimated 80%+ chance of a flood reaching the building in the next 30 years
4/10 Fire Factor
2% chance of being in a wildfire in next 30 years
1/10 Heat Factor
8 days above 82° expected this year, 21 days in 30 years
1/10 Wind Factor
Minimal risk of severe winds over next 30 years
4/10 Air Factor
5 unhealthy days expected this year, 6 days in 30 years
Provided by First Street
Historical weather
Lyons, CO • 80540
Average low and high temperatures (°F)
41
19
49
26
61
37
61
38
67
45
80
55
85
59
83
58
78
52
66
42
52
31
51
30
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
In this area, properties receive around 10.1 hours in
June and 6 hours in December, placing it above the
U.S. average for solar exposure.
10.1 hrs
6 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$2.33M – $2.82M
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