54-333 Union Mill Rd, Kapaau, HI 96755
What's special
Since 1885, the Union Mill Plantation Manager's Estate has stood as one of North Kohala's most gracious landmarks — a beautifully restored residence set on park-like grounds that feel worlds away from modern Hawaiʻi. 5 bedrooms, 3.5 baths, and over 4,200 sq ft of soaring ceilings, period craftsmanship, and serene garden views from nearly every room — surrounded by century-old Monterey cypress, royal palms, and a botanical sanctuary of 30+ plant species including avocado, lychee, citrus, breadfruit, pineapple, orange, and more. Listed on the Hawaiʻi State Historic Register, the property carries an extraordinary financial advantage: real property taxes of approximately $200/year. This is not simply a home — it is a once-in-a-generation opportunity to steward a genuine piece of Hawaiian history, rich with character, legacy, and timeless architectural elegance. The 1.34-acre compound spans two parcels and five structures — main residence, original caretaker's cottage, garage/workshop, 4-stall carport, and storage building. Modern infrastructure throughout: fiber-optic internet, county water, overhead power — alongside an updated kitchen, laundry room, and workshop, offering a rare blend of historic charm and modern-day livability. Located in Lava Zone 9 and Flood Zone X — among the most desirable and lowest-risk designations on the Big Island, adding peace of mind to this exceptional offering. Positioned on quiet, private Union Mill Road between Hawi and Kapaʻau — just minutes to local markets, restaurants, schools, and the iconic King Kamehameha I Statue — yet surrounded by towering trees and gentle trade winds where the outside world feels wonderfully far away. Experience the slower rhythm and authentic charm that define life in North Kohala.
- 309 days |
- 572 |
- 39 |
Travel times
Living Room
Kitchen
Dining Room
Zillow last checked:
Listing updated:
Andrew Jay Nonaka 8089386055,
eXp Realty,
Kahea Ng 808-756-8824,
eXp Realty
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 5
- Bathrooms: 4
- Full bathrooms: 3
- 1/2 bathrooms: 1
Features
- Has fireplace: No
Interior area
- Total structure area: 4,257
- Total interior livable area: 4,257 sqft
Video & virtual tour
Property
Parking
- Parking features: Attached, Covered
Features
- Fencing: Stone
Lot
- Size: 1.34 Acres
- Features: Corner Lot
- Topography: Fairly Level,Graded
Details
- Parcel number: 3540100580000
- Zoning: RS-15
- Special conditions: Fee Simple,Standard
Construction
Type & style
- Home type: SingleFamily
- Property subtype: Single Family Residence
Condition
- Year built: 1885
Utilities & green energy
- Sewer: Cesspool
- Utilities for property: Cable Available, Electricity Available, Phone Available
Community & HOA
Community
- Subdivision: UNION MILL ROAD TRACT
Location
- Region: Kapaau
Financial & listing details
- Price per square foot: $470/sqft
- Tax assessed value: $982,400
- Annual tax amount: $200
- Date on market: 11/28/2025
- Listing terms: Cash,Conventional
- Ownership: Full
- Electric utility on property: Yes
- Road surface type: Paved
Price history
| Date | Event | Price |
|---|---|---|
| 6/14/2026 | Price change | $1,999,000-4.8%$470/sqft |
Source: | ||
| 5/4/2026 | Price change | $2,099,0000%$493/sqft |
Source: | ||
| 2/16/2026 | Price change | $2,100,000-4.5%$493/sqft |
Source: | ||
| 11/28/2025 | Listed for sale | $2,200,000+494.6%$517/sqft |
Source: | ||
| 12/2/2013 | Sold | $370,000+10.4%$87/sqft |
Source: Agent Provided | ||
| 4/24/2013 | Sold | $335,000-61.7%$79/sqft |
Source: Agent Provided | ||
| 7/6/2012 | Sold | $875,000$206/sqft |
Source: | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | $200 | $982,400 +8.5% |
| 2024 | $200 +0.6% | $905,100 +8% |
| 2023 | $199 -0.6% | $838,100 +6.5% |
| 2022 | $200 | $787,100 +27.9% |
| 2021 | $200 | $615,500 +4.6% |
| 2020 | $200 | $588,200 +1% |
| 2019 | $200 | $582,200 +7.1% |
| 2018 | $200 +100% | $543,700 +4% |
| 2017 | $100 | $523,000 +13.7% |
| 2016 | -- | $459,900 -1.8% |
| 2015 | -- | $468,300 +3.9% |
| 2014 | -- | $450,900 |
Find assessor info on the county website
Monthly payment
Estimated market value
Zestimate®
$1,826,100
Estimated sales range
$1.73M - $1.92M
Rent Zestimate®
$4,822/mo
Climate risks
Explore flood, wildfire, and other predictive climate risk information for this property on First Street®️.