See Home Value
Niwot 80503
8478 Haystack Ct
$2,440,000
● House - Off Market

8478 Haystack Ct

Niwot, CO 80503
bedrooms
4 Beds
bathrooms
4 Baths, 1 Half Bath
square feet
5,967 Ft²
$13,414
Est. Monthly
$206
HOA / Fees

About This Property

Tucked away at the end of a quiet cul-de-sac-shared with just one other home-this 1.36-acre Niwot estate offers rare privacy, space, and serenity. Surrounded by over 120 mature trees, the property feels like a secluded retreat while still being close to everything.

Offered for the first time in 25+ years, this home has been meticulously maintained and thoughtfully designed for both everyday living and entertaining.

Inside, the main level features a functional, flowing layout with three fireplaces anchoring the family room, formal living room, and main-floor primary suite. The spacious kitchen opens to the main living areas and includes a cozy eat-in nook, while a formal dining room provides space for gatherings and special occasions. A dedicated office with an attached half bath adds flexibility.

Step out onto the covered walk-out deck and take in the beautifully designed backyard, an extension of the home's living space.

Upstairs, each of the three bedrooms includes its own en-suite bathroom, offering comfort and privacy. The walkout basement provides an open entertaining area, 3/4 bath, workshop, storage, and direct access to the backyard.

Outside, the property transforms into a private resort with a pool & built in hot tub, putting green, tiki bar, multiple patios, and expansive lawn space perfect for entertaining or relaxing in total privacy.

Additional highlights include a three-car garage, multiple outdoor living spaces, and exceptional care throughout.

A rare opportunity to own a private, resort-style property in one of Niwot's most desirable settings.
Unit Size
5,967 Ft²
Days on Market
-
Land Size
1.21 acres
Price per sqft
$411
Property Type
House
Property Taxes
$1,178
HOA Dues
$206
Year Built
1990

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Last updated: 3 months ago (REcolorado MLS #IRE2805935)

Price History

Date / Event Date Event Price
May 29, 2026 Sold
Sold
Apr 29, 2026 In contract -
In contract
Apr 23, 2026 Listed $2,450,000
Listed
Jun 3, 1998 Sold
Sold
Aug 18, 1997 Sold
Sold

Property Highlights

Garage
Air Conditioning
Fireplace

Building Info

Overview

    General

  • Year Built: 1990
  • Effective Year Built: 1998
  • Building Count: 1
  • Total Rooms: 11
  • Bedroom Count: 4
  • Bathroom Count: 5
  • Full Bathrooms: 4
  • Partial Bathrooms: 5
  • Building Condition: 7
  • Building Quality: 4
  • Construction Type: 6
  • Building Style: 28
  • Exterior Walls Type: 3
  • Interior Walls Type: 20
  • Roof Shape Type: 0
  • Roof Cover Type: 0
  • Floor Count: 200
  • Living Units: 1
  • Floor Cover: 0
  • Basement Type: 6
  • Basement Area: 1,840
  • Garage Type: 1
  • Garage Square Area: 1,002
  • Parking Space Count: 4
  • Patio Type: 20
  • Porch Type: 8
  • Pool Type: 0

    Dimensions

  • Lot Size Square Feet: 52,686
  • Total Building Area: 7,233
  • Gross Building Area: 7,233
  • Building Area: 5,967
  • Building Area Measurement: L

    Heating and Cooling

  • Air Conditioning: 1
  • Heating: 4
  • Heated Square Feet: 5,967
  • Heating Fuel Type: 0

    Utilities

  • Sewer System: 0
  • Water Service: 0

Building

  • Building Type: 0
  • Property Class: R
  • Subdivision: COTTONWOOD HILLS - NIV
  • Land Acres: 0000001210
  • Standard Land Use Code: 1001
  • County Land Use Code: 1112
  • Legal Description 1: LOT 1 BLK 4 COTTONWOOD HILLS

Neighborhood

  • School District Name: St. Vrain Valley School District RE 1J
  • Census Tract: 013205

Zoning

  • Zoning: RR

Geography

  • Assessors Map Reference: B4-H
  • Account Number: R0098610
  • Parcel: R0098610
  • Block: 4
  • Lot: 1
  • Meridian: SEC 31 TWN 2N RNG 69
  • Municipality: NIWOT
  • Latitude: 40.0981
  • Longitude: -105.155

    Address

  • Full Address: 8478 Haystack Ct
  • Address - House Number: 8478
  • Address - Street Name: Haystack
  • Address - Suffix Type: Ct
  • State: CO
  • City Name: Niwot
  • Carrier Code: R007
  • 4-Digit Zip Code: 7292
  • Zip Code: 80503

Valuation

    Tax

  • Tax Year: 2022
  • Tax Amount: $1,048,978
  • Tax Rate Code Area: 00-273

    Appraisal Valuation

  • Standard Deviation: 0.17
  • Valuation Date: May 17, 2023
  • Confidence Score: 78
  • Final Value: 2,379,481
  • High Value: 2,784,115
  • Low Value: 1,974,846

    Market Valuation

  • Market Total Value: $2,111,100
  • Market Land Value: $622,100
  • Market Improvement Value: $1,489,000

    Assessments Valuation

  • Assessed Year: 2023
  • Assessed Total Value: $142,816
  • Assessed Land Value: $42,085
  • Assessed Improvements Value: $100,731

    Sales

  • Current Sale Contract Date: May 29, 1998
  • Current Sale Recording Date: Jun 03, 1998
  • Current Sale Price:
  • Current Sale Document Type: 71
  • Current Sale Input Document Number: 1809055
  • Previous Sale Recording Date: Aug 18, 1997
  • Previous Sale Contract Date: Aug 11, 1997
  • Previous Sale Amount: $650,000
  • Previous Sale Document Type: 71

    Financing

  • First Mortgage Financing Type: FIX
Data used for valuation calculations is provided by RealtyHop, and other third party sources

Comparables

Unit
Status
Type
Beds
Baths
ft²
Price/ft²
Asking Price
Listed On
Closing Price
Sold On
HOA + Taxes

About Niwot


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Frequently Asked Questions

When was property at 8478 Haystack Court built and last sold?
The property at 8478 Haystack Court was built in 1990 and last sold on May 29, 1998 for $775,000.
How much is this home worth?
The estimated value of the home located at 8478 Haystack Court is $2,472,823.
What are some comparable homes to 8478 Haystack Court?
There are currently no comparable homes to 8478 Haystack Court.