House Prices

Altaire San Marcos, CA House Prices & Home Values 2026


Average Data

average house price$702,004
average size per house1812 ft²
average price per ft²401 $ / ft²

07/05/2026 - The value range (VR) for house prices in Altaire San Marcos, CA is $380.95/ sqft to $421.05/ sqft. An average home with 1812 sqft costs approximately $713,751 to $788,883. San Marcos, CA includes 1 ZIP codes and it is located in San Diego county. The lowest prices are found in ZIP 92078, while the highest are in ZIP 92078. The average price per sqare feet is $401. Our analysis is based on 19 property listings.

Avergage prices by ZIP codes Altaire San Marcos

92078445 $ / ft²




Historical development of home values in Altaire San Marcos

Year Estimated value (USD) Change vs. 2025
2010 $326,023 -53.6%
2011 $313,416 -55.4%
2012 $312,572 -55.5%
2013 $324,255 -53.8%
2014 $340,379 -51.5%
2015 $357,848 -49.0%
2016 $376,523 -46.4%
2017 $396,846 -43.5%
2018 $418,785 -40.3%
2019 $438,204 -37.6%
2020 $460,857 -34.4%
2021 $524,175 -25.3%
2022 $611,070 -13.0%
2023 $644,402 -8.2%
2024 $681,682 -2.9%
2025 $702,004 0.0%

Graph: estimated home values in Altaire San Marcos over time (USD)



Example: 100% financing house in Altaire San Marcos

Loan amount: $702,004

Interest rate: 6.20%

Fixed monthly payment: $4,301.38

Breakdown in the 1st month:
Interest portion: $3,629.36  –  Principal portion: $672.02

Yearly breakdown (100% financing)

Year Interest per year ($) Principal per year ($) Remaining balance at year-end ($)
1 $43,319.02 $8,297.52 $693,706.48
2 $42,789.35 $8,827.20 $684,879.28
3 $42,225.87 $9,390.68 $675,488.60
4 $41,626.42 $9,990.13 $665,498.47
5 $40,988.70 $10,627.85 $654,870.62
6 $40,310.27 $11,306.28 $643,564.34
7 $39,588.54 $12,028.01 $631,536.33
8 $38,820.73 $12,795.82 $618,740.51
9 $38,003.91 $13,612.64 $605,127.88
10 $37,134.95 $14,481.60 $590,646.28
11 $36,210.52 $15,406.03 $575,240.25
12 $35,227.08 $16,389.47 $558,850.78
13 $34,180.86 $17,435.69 $541,415.08
14 $33,067.85 $18,548.70 $522,866.39
15 $31,883.80 $19,732.75 $503,133.64
16 $30,624.16 $20,992.39 $482,141.25
17 $29,284.12 $22,332.43 $459,808.82
18 $27,858.53 $23,758.02 $436,050.80
19 $26,341.94 $25,274.61 $410,776.19
20 $24,728.54 $26,888.01 $383,888.17
21 $23,012.14 $28,604.41 $355,283.77
22 $21,186.18 $30,430.36 $324,853.41
23 $19,243.67 $32,372.88 $292,480.52
24 $17,177.15 $34,439.40 $258,041.12
25 $14,978.71 $36,637.83 $221,403.29
26 $12,639.94 $38,976.61 $182,426.68
27 $10,151.88 $41,464.67 $140,962.01
28 $7,504.98 $44,111.56 $96,850.45
29 $4,689.13 $46,927.42 $49,923.03
30 $1,693.52 $49,923.03 $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 Altaire San Marcos, CA


1500 sqft3900 sqft
Ø selling price$752,561$1,600,902
Ø fast selling$684,147$1,440,812
Ø high price sale$820,976$1,760,993

In 2026, houses in Altaire San Marcos, CA will be offered at an average price of $401 per square foot. A 1,500 sqft home priced at $752,561 is 23.78% more expensive per square foot than a 3,900 sqft home priced at $1,600,902. Home prices in Altaire San Marcos, 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 $1,108,317. Sellers who can wait longer may achieve a higher price of up to $1,354,610.


Altaire Neighborhood in San Marcos, CA

Location and Lifestyle

Nestled in the scenic hills of North County San Diego, Altaire in San Marcos, CA blends a tranquil suburban vibe with quick access to everyday conveniences.
Residents enjoy a lifestyle centered around walkable streets, nearby cafes and services, and panoramic views that showcase why San Marcos real estate is so sought-after.

Homes and Architecture

The neighborhood features thoughtfully designed, contemporary single-family homes with open layouts, generous natural light, and outdoor living spaces ideal for year?round sunshine.
Many homes in Altaire offer flexible lofts or offices, energy-efficient features, and elegant finishes that appeal to modern buyers.

Parks, Trails, and Recreation

Outdoor enthusiasts appreciate access to nearby parks, hiking and biking trails, and scenic lookouts including the famed Double Peak Park for sunrise and sunset views.
Proximity to Lake San Marcos and coastal breezes further enhances weekend recreation, from paddleboarding to picnics.

Schools and Community

Altaire benefits from the highly regarded San Marcos Unified School District, with schools, libraries, and youth programs that anchor a strong community spirit.
Local events, farmers markets, and the energy of Cal State San Marcos (CSUSM) add vibrancy and connection for residents of all ages.

Access and Real Estate

Commuters value convenient access to SR?78 and I?15, placing job centers, beaches, and regional attractions within easy reach.
If you?re exploring homes for sale in Altaire, San Marcos, you?ll find a balanced mix of comfort, curb appeal, and location that makes this neighborhood a standout in North County.



FAQ – Home Values in Altaire San Marcos

What is the median home value in Altaire San Marcos in 2026?

In 2026, the typical home value in Altaire San Marcos is about $702,004 for an average home size of 1812 square feet. This corresponds to an average price of roughly $401 per square foot.

What is the average cost per square foot in Altaire San Marcos?

In 2026, homes in Altaire San Marcos sell for an average of around $401 per square foot, with a typical range between $380.95 and $421.05 per square foot, depending on the property’s location, condition, and lot size.

What is the average home size in Altaire?

The average home size in Altaire San Marcos is about 1812 square feet, with an estimated 2026 value around $702,004.



Neighborhoods close to Altaire San Marcos, CA

Shadowridge Vista, CA309 $ / ft²
Woods Valley Valley Center, CA249 $ / ft²
Sunshine Summit Warner Springs, CA302 $ / ft²
Eden Gardens (La Colonia) Solana Beach, CA1011 $ / ft²
Carlton Hills Santee, CA153 $ / ft²
Mesa Grande Santa Ysabel, CA627 $ / ft²
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