House Prices

Diamond Mountain Calistoga, CA House Prices & Home Values 2026


Average Data

average house price$1,668,934
average size per house2063 ft²
average price per ft²878 $ / ft²

05/31/2026 - The value range (VR) for house prices in Diamond Mountain Calistoga, CA is $834.1/ sqft to $921.9/ sqft. An average home with 2063 sqft costs approximately $1,867,012 to $2,063,540. Calistoga, CA includes 1 ZIP codes and it is located in Napa county. The lowest prices are found in ZIP 94515, while the highest are in ZIP 94515. The average price per sqare feet is $878. Our analysis is based on 8 property listings.

Avergage prices by ZIP codes Diamond Mountain Calistoga

94515913 $ / ft²




Historical development of home values in Diamond Mountain Calistoga

Year Estimated value (USD) Change vs. 2025
2010 $775,083 -53.6%
2011 $745,111 -55.4%
2012 $743,104 -55.5%
2013 $770,880 -53.8%
2014 $809,211 -51.5%
2015 $850,743 -49.0%
2016 $895,141 -46.4%
2017 $943,455 -43.5%
2018 $995,614 -40.3%
2019 $1,041,779 -37.6%
2020 $1,095,634 -34.4%
2021 $1,246,166 -25.3%
2022 $1,452,749 -13.0%
2023 $1,531,992 -8.2%
2024 $1,620,620 -2.9%
2025 $1,668,934 0.0%

Graph: estimated home values in Diamond Mountain Calistoga over time (USD)



Example: 100% financing house in Diamond Mountain Calistoga

Loan amount: $1,668,934

Interest rate: 6.51%

Fixed monthly payment: $10,559.78

Breakdown in the 1st month:
Interest portion: $9,053.97  –  Principal portion: $1,505.81

Yearly breakdown (100% financing)

Year Interest per year ($) Principal per year ($) Remaining balance at year-end ($)
1 $108,098.58 $18,618.74 $1,650,315.26
2 $106,849.67 $19,867.64 $1,630,447.62
3 $105,516.99 $21,200.33 $1,609,247.29
4 $104,094.91 $22,622.40 $1,586,624.89
5 $102,577.45 $24,139.87 $1,562,485.03
6 $100,958.20 $25,759.12 $1,536,725.91
7 $99,230.33 $27,486.99 $1,509,238.92
8 $97,386.56 $29,330.76 $1,479,908.16
9 $95,419.11 $31,298.21 $1,448,609.95
10 $93,319.69 $33,397.63 $1,415,212.32
11 $91,079.44 $35,637.87 $1,379,574.45
12 $88,688.92 $38,028.39 $1,341,546.06
13 $86,138.06 $40,579.26 $1,300,966.80
14 $83,416.08 $43,301.23 $1,257,665.56
15 $80,511.52 $46,205.79 $1,211,459.77
16 $77,412.13 $49,305.18 $1,162,154.59
17 $74,104.84 $52,612.48 $1,109,542.11
18 $70,575.70 $56,141.61 $1,053,400.50
19 $66,809.84 $59,907.48 $993,493.02
20 $62,791.36 $63,925.95 $929,567.07
21 $58,503.34 $68,213.98 $861,353.09
22 $53,927.68 $72,789.63 $788,563.46
23 $49,045.10 $77,672.21 $710,891.24
24 $43,835.01 $82,882.31 $628,008.93
25 $38,275.43 $88,441.89 $539,567.05
26 $32,342.93 $94,374.39 $445,192.66
27 $26,012.48 $100,704.83 $344,487.82
28 $19,257.41 $107,459.91 $237,027.91
29 $12,049.21 $114,668.10 $122,359.81
30 $4,357.51 $122,359.81 $0.00

Note: The calculation is based on a standard annuity mortgage with a fixed monthly payment over the entire term. Extra payments, interest rate changes, and additional purchase costs (e.g. taxes, notary fees) are not included.


How to sell in Diamond Mountain Calistoga, CA


1500 sqft3900 sqft
Ø selling price$1,729,024$3,678,105
Ø fast selling$1,571,840$3,310,294
Ø high price sale$1,886,208$4,045,915

In 2026, houses in Diamond Mountain Calistoga, CA will be offered at an average price of $878 per square foot. A 1,500 sqft home priced at $1,729,024 is 24.96% more expensive per square foot than a 3,900 sqft home priced at $3,678,105. Home prices in Diamond Mountain Calistoga, CA vary significantly depending on the property’s condition and exact location. For a quick sale, a 2,700 sqft home should be listed at around $2,546,380. Sellers who can wait longer may achieve a higher price of up to $3,112,243.


Living in Diamond Mountain, Calistoga, CA

Location and Scenery

Nestled on the western hills above Calistoga, Diamond Mountain offers a secluded, forested enclave with sweeping Napa Valley views. Its elevations and volcanic, well?drained soils create a distinctive mountain setting that feels both rugged and refined.

Wine Country Lifestyle

The area sits within the renowned Diamond Mountain District AVA, celebrated for structured, age?worthy Cabernet Sauvignon and complex red blends. Vineyards, boutique wineries, and estate properties dot the slopes, giving residents a front?row seat to the rhythms of Napa Valley wine country.

Homes and Real Estate

Real estate here leans toward private estates, contemporary retreats, and custom homes that maximize indoor?outdoor living. Large parcels, gated drives, and expansive terraces are common, pairing luxury amenities with quiet mountain serenity.

Outdoors and Wellness

Outdoor enthusiasts enjoy trail access, towering conifers, and wildlife, along with striking sunsets over the Mayacamas Range. Down the hill, Calistoga?s historic downtown offers acclaimed restaurants, tasting rooms, and famous geothermal spas.

Access and Experience

Despite the secluded feel, residents are within reach of St. Helena, Highway 29, and a spectrum of top Napa Valley experiences. Whether you?re seeking a tranquil retreat, vineyard lifestyle, or investment in a coveted mountain appellation, Diamond Mountain, Calistoga delivers rare Napa prestige and natural beauty.



FAQ – Home Values in Diamond Mountain Calistoga

What is the median home value in Diamond Mountain Calistoga in 2026?

In 2026, the typical home value in Diamond Mountain Calistoga is about $1,668,934 for an average home size of 2063 square feet. This corresponds to an average price of roughly $878 per square foot.

What is the average cost per square foot in Diamond Mountain Calistoga?

In 2026, homes in Diamond Mountain Calistoga sell for an average of around $878 per square foot, with a typical range between $834.1 and $921.9 per square foot, depending on the property’s location, condition, and lot size.

What is the average home size in Diamond Mountain?

The average home size in Diamond Mountain Calistoga is about 2063 square feet, with an estimated 2026 value around $1,668,934.



Neighborhoods close to Diamond Mountain Calistoga, CA

Browns Valley Napa, CA1046 $ / ft²
Downtown San Leandro San Leandro, CA430 $ / ft²
Rossmoor Walnut Creek, CA456 $ / ft²
Southampton Benicia, CA382 $ / ft²
Tenderloin San Francisco, CA1177 $ / ft²
Argus Trona, CA161 $ / ft²
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