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1820 Mallard DriveBroomfield, CO 80020

For Sale

$7,500,000

Smart Buyer Rebate $75,000

On a private lakefront acre at the highest vantage point in Broomfield’s most prestigious gated enclave, 1820 Mallard Drive is a residence of rare distinction where architectural brilliance, natural grandeur and refined comfort converge in flawless harmony. With panoramic views of the Rocky Mountains and a shimmering private lake as its ever-changing backdrop, this 11,000 square foot estate is a triumph of design and lifestyle, curated for the discerning few. A tree-canopied approach winds past still waters arriving at a circular drive, sweeping archways and grand portico that rises like a timeless sculpture from the verdant landscape. Every artisan detail from the grand gallery hall and soaring timber-beamed ceilings to the hand-chiseled stone and luminous lighting has been conceived to evoke awe and inspiration. The reimagined William Ohs kitchen is a culinary celebration of form and function, wrapped in Taj Mahal quartzite and bespoke walnut cabinetry, anchored by a chef’s suite of Sub-Zero and Wolf appliances. Impressing with 22-foot ceilings and a monumental stone fireplace, the great room invites both intimate gatherings and grand entertaining. Walls of glass slide away to reveal heated terraces with fireplaces and unforgettable views. The main level primary suite is a private haven of indulgence, with a lake-facing soaking tub, dual water closets, steam shower, morning bar and couture-worthy dressing rooms. Upstairs, two luxe suites enjoy their own vistas, while the third-floor Sky Loft offers a 270° panorama perfect for creativity and reflection. The walk-out lower level is a destination in itself with billiards and media lounges, a stunning bar, spa room, private gym, and guest quarters. Beyond, layered patios and terraces, a putting green and private dock invite outdoor living in all seasons. With seven garage bays, Savant smart home integration and a setting that bridges Boulder and Denver, this is not merely a residence, it’s a legacy of artful living.

Listed by Stephanie Iannone

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License #029440

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Compass Colorado, LLC - Boulder

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303-641-7484

Listed by Melinda Nassar

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License #046122

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Compass Colorado, LLC - Boulder

Last updated August 06, 2025

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Source: REcolorado #2203457

Listing Facts

  • TypeSingle-family
  • NeighborhoodWhistlepig
  • Bedrooms5
  • Bathrooms7
  • Days on Prevu103
  • HOA/Maint. Fees$500/month
  • Taxes$21,129/year
  • Size9,216 sqft
  • Price per sqft$814

Amenities

  • Dishwasher
  • Private Outdoor Space
  • Washer/Dryer
  • Air Conditioning
  • Parking

Location

Mortgage Calculator

Listing History

05/27/2025
Listed by Compass Colorado, LLC - Boulder
$7,500,000

Property Details for 1820 Mallard Drive

Association

Amenities

  • Association Amenities: Gated, Trail(s)

Fees

  • Association Fee: $500.00 Monthly
  • Association Fee Includes: Road Maintenance, Snow Removal

General

  • Association Name: Whistlepig

Exterior

Construction

  • Property Condition: Updated/Remodeled
  • Roof: Concrete
  • Structure Type: House
  • Window Features: Window Treatments
  • Year Built: 2014
  • Architectural Style: Mountain Contemporary
  • Construction Materials: Concrete, Frame, Stone, Stucco
  • Exterior Features: Balcony, Barbecue, Gas Grill, Gas Valve, Lighting, Private Yard, Spa/Hot Tub

Features

  • Direction Faces: West
  • Patio And Porch Features: Covered, Deck, Front Porch, Patio
  • Road Frontage Type: Private Road
  • View: Lake, Meadow, Mountain(s)
  • Waterfront Features: Lake Front

Measurements

  • Building Area Total: 10,584
  • Lot Features: Irrigated, Landscaped, Level, Many Trees, Sprinklers In Front, Sprinklers In Rear
  • Lot Size Acres: 1.06
  • Lot Size Area: 46,175
  • Lot Size Square Feet: 46,175
  • Lot Size Units: Square Feet

Financial

Taxes

  • Parcel Number: R8860848
  • Tax Annual Amount: $21,129.00
  • Tax Year: 2024

Interior

Features

  • Appliances: Bar Fridge, Dishwasher, Disposal, Dryer, Freezer, Microwave, Oven, Range, Range Hood, Refrigerator, Warming Drawer, Washer, Wine Cooler
  • Fireplace Features: Basement, Gas, Great Room, Outside, Primary Bedroom
  • Fireplaces Total: 5
  • Flooring: Carpet, Tile, Wood
  • Interior Features: Audio/Video Controls, Breakfast Bar, Built-in Features, Central Vacuum, Eat-in Kitchen, Entrance Foyer, Five Piece Bath, Granite Counters, High Ceilings, High Speed Internet, Jack & Jill Bathroom, Kitchen Island, Open Floorplan, Pantry, Primary Suite, Quartz Counters, Smart Light(s), Smart Thermostat, Smart Window Coverings, Smoke Free, Solid Surface Counters, Sound System, Hot Tub, Stone Counters, T&G Ceilings, Vaulted Ceiling(s), Walk-In Closet(s), Wet Bar
  • Spa Features: Steam Room

Measurements

  • Living Area: 9,216

Rooms

  • Basement: Exterior Entry, Finished, Full, Sump Pump, Walk-Out Access
  • Has Basement: Yes
  • Bathrooms Full: 2
  • Bathrooms Half: 3
  • Bathrooms Three Quarter: 2
  • Bathrooms Total Integer: 7
  • Bedrooms Total: 5
  • Main Level Bathrooms: 3
  • Main Level Bedrooms: 1

Other

General

  • Exclusions: Sellers personal property and staging items.

Location

  • Subdivision Name: Whistlepig

Parking

Parking

  • Attached Garage: Yes
  • Garage Spaces: 7
  • Parking Features: Circular Driveway, Brick Driveway, Dry Walled, Exterior Access Door, Finished Garage, Floor Coating, Heated Garage, Insulated Garage, Lighted, Oversized, Oversized Door, Storage
  • Parking Total: 7

Schools

Elementary School

  • Elementary School: Aspen Creek K-8
  • Elementary School District: Boulder Valley RE 2

High School

  • High School: Broomfield
  • High School District: Boulder Valley RE 2

Middle or Junior School

  • Middle Or Junior School: Aspen Creek K-8
  • Middle Or Junior School District: Boulder Valley RE 2

Utilities

Equipment

  • Cooling: Central Air
  • Electric: 220 Volts
  • Heating: Forced Air, Natural Gas, Radiant Floor
  • Laundry Features: Sink
  • Sewer: Public Sewer
  • Utilities: Cable Available, Electricity Connected, Internet Access (Wired), Natural Gas Connected, Phone Available
  • Water Source: Public

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Full MLS Disclaimers

Rebate estimate is indicative only and based on listing price and estimated buyer's agent commission paid by owner, if applicable. Final rebates are subject to Terms of Use and may vary due to final negotiated transaction terms.