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About this home
More photos and floor plans coming soon --- This incredible estate is being offered through a transparent, non-distressed luxury live auction --- Bidding to start from $1,999,000! --- Live auction link will be provided shortly --- Live Auction Thursday, October 22nd, 2026 at 1pm MT (No Buyer Premium) --- Set on 10 acres this exceptional 7,840-square-foot estate offers a rare combination of space, privacy and natural beauty. Originally built in 1974 with significant additions completed in 1991, the property features 5 bedrooms, 4 bathrooms, and a flowing floor plan designed to capture abundant natural light through expansive windows that showcase the surrounding views. For those who value a retreat from the "electromagnetic smog" of more densely developed areas, the Table Mountain "Acoustic Quite Zone" creates a distinctive setting for this estate. The grounds offer an idyllic Colorado lifestyle, with an orchard producing apples, pears, plums, and grapes. A large barn is ready for use and providing excellent potential for equestrian pursuits. A recently renovated 700-square-foot cottage adds valuable flexibility and is currently used as a studio. With the appropriate land-use approval, the cottage may also offer potential as an accessory dwelling unit (ADU), making it an appealing option for guests, extended living arrangements, multigenerational living, or additional workspace. Recent improvements include repairs and updates to the stucco, exterior paint, trim, gutters, and leaf-filter system, along with work to the septic tank and sewage main. Parking is plentiful, with a two-car attached garage plus eight additional surface parking spaces. With its stunning views, orchard, versatile outbuildings, renovated cottage, peaceful setting, and thoughtfully updated components, this unique estate presents an extraordinary opportunity to enjoy privacy, space, and a more tranquil Colorado lifestyle while remaining conveniently positioned in the Longmont area.
More photos and floor plans coming soon --- This incredible estate is being offered through a transparent, non-distressed luxury live auction --- Bidding to start from $1,999,000! --- Live auction link will be provided shortly --- Live Auction Thursday, October 22nd, 2026 at 1pm MT (No Buyer Premium) --- Set on 10 acres this exceptional 7,840-square-foot estate offers a rare combination of space, privacy and natural beauty. Originally built in 1974 with significant additions completed in 1991, the property features 5 bedrooms, 4 bathrooms, and a flowing floor plan designed to capture abundant natural light through expansive windows that showcase the surrounding views. For those who value a retreat from the "electromagnetic smog" of more densely developed areas, the Table Mountain "Acoustic Quite Zone" creates a distinctive setting for this estate. The grounds offer an idyllic Colorado lifestyle, with an orchard producing apples, pears, plums, and grapes. A large barn is ready for use and providing excellent potential for equestrian pursuits. A recently renovated 700-square-foot cottage adds valuable flexibility and is currently used as a studio. With the appropriate land-use approval, the cottage may also offer potential as an accessory dwelling unit (ADU), making it an appealing option for guests, extended living arrangements, multigenerational living, or additional workspace. Recent improvements include repairs and updates to the stucco, exterior paint, trim, gutters, and leaf-filter system, along with work to the septic tank and sewage main. Parking is plentiful, with a two-car attached garage plus eight additional surface parking spaces. With its stunning views, orchard, versatile outbuildings, renovated cottage, peaceful setting, and thoughtfully updated components, this unique estate presents an extraordinary opportunity to enjoy privacy, space, and a more tranquil Colorado lifestyle while remaining conveniently positioned in the Longmont area.
REColorado as Distributed by MLS Grid #6540589
Aug 15, 2026
Listing Removed
—
Aug 15, 2026
Listing Removed
—
Mar 6, 2026
Listed
$2,600,000
$332/sq ft
Mar 6, 2026
Listed
$2,600,000
$332/sq ft
REColorado as Distributed by MLS Grid #IR985667
May 2, 2025
Listing Removed
—
Apr 10, 2025
Relisted
—
Apr 10, 2025
Price Changed
$1,890,000
$241/sq ft
Mar 22, 2025
Listing Removed
—
IRES as Distributed by MLS Grid #985667
May 2, 2025
Listing Removed
—
Apr 10, 2025
Relisted
—
Apr 10, 2025
Price Changed
$1,890,000
$241/sq ft
Mar 22, 2025
Listing Removed
—
Nov 21, 2024
Price Changed
$1,989,000
$254/sq ft
Sep 25, 2024
Price Changed
$2,277,000
$290/sq ft
Sep 18, 2024
Price Changed
$2,340,000
$298/sq ft
Jul 25, 2024
Price Changed
$2,520,000
$321/sq ft
Sep 23, 2023
Price Changed
$2,720,000
$347/sq ft
Apr 17, 2023
Listed
$3,000,000
$383/sq ft
IRES as Distributed by MLS Grid #978632
Apr 4, 2023
Listing Removed
—
Mar 14, 2023
Price Changed
$2,900,000
$370/sq ft
Nov 10, 2022
Listed
$3,300,000
$421/sq ft
REColorado as Distributed by MLS Grid #6348115
Jul 5, 2018
Contingent
—
May 25, 2018
Price Changed
$1,000,009
$128/sq ft
May 25, 2018
Relisted
—
May 15, 2018
Contingent
—
May 7, 2018
Listed
$1,009,000
$129/sq ft
REColorado as Distributed by MLS Grid #5040077
May 6, 2018
Listing Removed
—
Jan 4, 2018
Price Changed
$1,009,000
$129/sq ft
Dec 7, 2017
Listed
$1,080,000
$138/sq ft
IRES as Distributed by MLS Grid #434110
Jan 26, 2005
Sold
$895,000
$114/sq ft
Dec 6, 2004
Listed
$945,000
$121/sq ft
Year
Property tax
Land + Additions
Assessment*
2018
$9,288 (+6.9%)
$41,184 + $62,405
$103,589
2017
$8,692
$34,090 + $56,117
$90,207
Public record
Public record
Zoning
Beds
5
Baths
3.5
Stories
—
Lot width
—
Lot depth
—
Lot size
9.02 Acres
Year renovated
—
Finished Sq. Ft.
—
Unfinished Sq. Ft.
—
Total Sq. Ft.
—
Year built
—
Style
Single Family Residential
County
Boulder County
APN
R0608786
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Sep 2, 2026.
RR
Rural Residential District
Residential areas developed at a density and character compatible with agricultural uses.
Permitted uses
Include but are not limited to:
Religious facility
Day care facility
Housing-Group
Housing-Single unit
Bed & breakfast
Educational/school
Recreation
Golf related
Veterinary clinic
Park & open space
Climate risks
1/10 Flood Factor
Minimal risk of a flood reaching the building in the next 30 years
6/10 Fire Factor
8% chance of being in a wildfire in next 30 years
3/10 Heat Factor
7 days above 92° expected this year, 18 days in 30 years
1/10 Wind Factor
Minimal risk of severe winds over next 30 years
2/10 Air Factor
1 unhealthy days expected this year, 1 days in 30 years
Provided by First Street
Historical weather
Longmont, CO • 80503
Average low and high temperatures (°F)
43
18
52
26
64
37
64
39
71
46
83
56
88
61
86
59
81
53
69
43
55
31
53
30
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
94/ 100
Exceptional sunlight
Sunscore
This home receives average direct sun exposure in Longmont. There appears to be minimal shading by surrounding buildings, terrain, and vegetation.
11.3 hrs
6.7 hrs
JuneDecember
Provided by Shadowmap
Redfin Estimate for 3800 Plateau Rd
We cannot show automated home-value estimates for this home.
Nearby homes have recently sold between $920,000 and $5,500,000.
Nearby comparable homes
The Redfin Estimate uses 6 recent nearby sales, priced between $920K to $5.5M.