3909 Grandon Ave, San Marcos, CA 92078
Property image
Property image
OFF MARKET

$769,700

Trulia Estimate
  • 3 Beds
  • 3 Baths
  • 1,488 sqft

3909 Grandon Ave, San Marcos, CA 92078

Est. Refi. Payment $4,889/mo*
Refinance Your Home

Home Value

Trulia Estimate
$770K
Since last month
Decreased$40K (-4.9%)
Since last year
Decreased$65K (-7.8%)
Learn more about this home's value by checking out its Trulia Estimate, the value of nearby homes, and how much similar homes have sold for.

Trulia Estimate

The of this home's value increased by +64% in the last 10 years
MonthEstimated value
2026
August 2026$773K
August 2026$770K
July 2026$812K
June 2026$814K
May 2026$814K
April 2026$842K
March 2026$838K
February 2026$833K
January 2026$798K
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016

Comparable sales

These are recently sold homes that have a similar location or other similar features to this home, like bedrooms, bathrooms, and square footage. Get a sense of the expected prices in the area by viewing these homes.
Address
Distance
Property Type
Sold Price
Sold Date
Bed
Bath
Sqft
3924 Grandon Ave, San Marcos, CA
0.04
Single-Family Home
$803,000
08/25/26
3
1.5
1,232
641 Hillhaven Dr, San Marcos, CA
0.57
Single-Family Home
$900,000
12/15/25
3
2.5
1,510
856 La Tierra Dr, San Marcos, CA
0.47
Single-Family Home
$855,000
09/12/25
3
2
1,568
3381 Sherwood Ln, San Marcos, CA
0.59
Single-Family Home
$914,000
06/01/26
3
2.5
1,510
3740 La Colusa Dr, San Marcos, CA
0.30
Single-Family Home
$850,000
03/09/26
3
2
1,100
3413 Arborview Dr, San Marcos, CA
0.60
Single-Family Home
$1,054,000
12/15/25
3
2.5
1,826
3362 Edgeview St, San Marcos, CA
0.61
Single-Family Home
$861,000
12/16/25
3
2.5
1,510
639 Starstone Dr, San Marcos, CA
0.48
Single-Family Home
$777,000
05/27/26
4
3
2,000
663 Hillhaven Dr, San Marcos, CA
0.65
Single-Family Home
$930,000
04/28/26
4
2.5
1,646
952 La Tierra Dr, San Marcos, CA
0.61
Single-Family Home
$1,123,000
07/10/26
3
2
1,595

Nearby home prices

Get a sense of expected prices in the area by checking the value of nearby homes.
Address
Distance
Price
Bed
Bath
Sqft
Status
650 S Rancho Santa Fe Rd #330, San Marcos, CA 92078
0.06
$399,500
2
2
1,248
Off Market
650 S Rancho Santa Fe Rd #352, San Marcos, CA 92078
0.07
$359,200
2
2
1,440
Off Market
650 S Rancho Santa Fe Rd S #351, San Marcos, CA 92078
0.08
$285,000
2
2
1,440
Recently Sold
835 Via Juanita, San Marcos, CA 92078
0.07
$904,300
3
2.5
1,232
Off Market
650 S Rancho Santa Fe Rd #118, San Marcos, CA 92078
0.16
$213,000
2
2
1,153
Recently Sold
650 S Rancho Santa Fe Rd #322, San Marcos, CA 92078
0.16
$420,700
3
2
1,668
Off Market
650 S Santa Fe Rd S #304, San Marcos, CA 92078
0.18
$394,600
2
2
1,776
Off Market
650 S Rancho Santa Fe Rd #256, San Marcos, CA 92078
0.18
$299,000
2
2
1,344
For Sale
650 S Rancho Santa Fe Rd #103, San Marcos, CA 92078
0.18
$319,000
2
2
1,440
Recently Sold
650 S Rancho Santa Fe Rd #105, San Marcos, CA 92078
0.18
$288,000
2
2
1,440
For Sale
650 S Rancho Santa Fe Rd #11, San marcos, CA 92078
0.19
-
3
2
1,680
Off Market
650 S Rancho Santa Fe Rd #3, San Marcos, CA 92078
0.19
$541,700
3
2
1,500
Off Market

Local Information

  • Map ViewExplore the area around 3909 Grandon Ave.
  • Schools1 Elementary School1 Middle School1 High School
  • Shop & Eat
-- mins to
Commute Destination

Home Highlights

Single-Family Home
Built in 1961
1,488 sqft
$517/sqft
Garage

About this House

Beautifully maintained single family home located in a safe and serene neighborhood. This 1488 square foot single family home has 3 bedrooms and 2.5 bathrooms.

Owner pays for all utilities while tenant is responsible for lawn and snow removal.
3909 Grandon Ave, San Marcos, CA 92078 is a 3 bedroom, 3 bathroom, 1,488 sqft single-family home built in 1961. This property is not currently displayed as for sale or rent on Trulia. The Trulia Estimate is $769,700, with a rent estimate of $3,631/month.

Home Details for 3909 Grandon Ave

Interior Features

Heating & Cooling
Heating: Forced AirHeating Fuel: Forced Air
Appliances & Utilities
DishwasherDryerWasher
Levels, Entrance, & Accessibility
Floors: Hardwood

Property Information

Year Built
Year Built: 1961Year Updated: 1961
Property Type / Style
Property Type: Single Family Home

Building

Levels, Entrance, & Accessibility
Disabled Access

Exterior Features

Parking & Garage
GarageParking Spaces: 2Parking: Garage Detached

Community

Units in Building: 1

Lot Information

Lot Area: 6000 sqft

Price and Tax history

YearProperty taxTax assessment
2026Unavailable
$236,260
Home facts updated by county records

Market trends in San Marcos

Last updated August 2026
Buyer'sMarketSeller'sMarket
Avg. sale price
$941K
$11.67KMoM
Sale-to-List Price
99.7%
0.1%MoM
Price per sq ft
$524
$9MoM
Available listings
197
19MoM

Around this home

What Locals Say about San Marcos

At least 551 Trulia users voted on each feature.

  • 92 % Say it's dog friendly

  • 85 % Say there are sidewalks

  • 85 % Say car is needed

  • 77 % Say there's holiday spirit

  • 71 % Say parking is easy

  • 70 % Say streets are well-lit

  • 69 % Say people would walk alone at night

  • 69 % Say kids play outside

  • 68 % Say yards are well-kept

  • 62 % Say it's quiet

  • 60 % Say it's walkable to grocery stores

  • 58 % Say there's wildlife

  • 56 % Say it's walkable to restaurants

  • 56 % Say they plan to stay for at least 5 years

  • 53 % Say neighbors are friendly

  • 37 % Say there are community events

Sourced by Trulia users. Learn more about our methodology.
  • Colleen Goldsmith
    "Quick! Bikeable paths, little traffic. Inland Rail Trail!!!"
    0
    Flag
  • Alvaradochris962
    "Community I live in is private and respects quiet hours. I have lived here for about 5 years and have not had issues with neighbors."
    0
    Flag
  • Rexquisite
    "Our neighbors are friendly and work together to make it great. It’s safe and has a ton of hiking options. "
    0
    Flag
  • S7th77267d
    "San Marcos is a great place to live. I love the school district, some schools being dual language emergent."
    0
    Flag
  • Trulia User
    "My work place is located Walking distance from home which is really convenient. I would not change this life style for anything."
    0
    Flag
  • Ma Mah
    "This neighborhood is mostly retired or family friendly. Larger than average lot sizes, many of the homes have views or privacy lots. Neighbors are outgoing and get to know each other and watch out for each other. "
    0
    Flag
  • Jeff Nixon
    "I’ve lived here for two years and love my neighborhood. Good schools and safe for families. I live near the golf course and it’s always well maintained and the club is very nice. "
    0
    Flag
  • Rexquisite
    "Easy to access other forms of transportation if needed. However, I don’t need public transportation. "
    0
    Flag
  • Jeff Nixon
    "The original homes are well maintained and are a part of a golf course community. The course is in great shape and very popular. "
    0
    Flag
  • SocalN
    "Holiday decorations are amazing to drive through and look at houses in the neighborhoods. Everyone goes all out. "
    0
    Flag
  • Ankit Satija
    "Halloween nights, Christmas celebration …thanksgiving nights. Very quiet and relaxing atmosphere . Nice neighbors, plenty of green space"
    0
    Flag
  • Todd Wurzbach
    "It’s within walking distance of 3 schools and very safe. It is very close to the 15 highway as well."
    0
    Flag
  • Sara Thuemmler
    "We have weekly bingo, monthly potluck, Holliday games and gatherings weekly pantry access, overall we are a big close family in my community. "
    0
    Flag
  • Carla L. Johnson
    "I work from home but any shopping I need to do is easy to get to either no freeway use. I am in Lake San Marcos. "
    0
    Flag
  • Len MacDonell
    "Dog owners, if I were to guess, would like the fact that there are some great walking paths within a 5 mile radius of the city."
    2
    Flag
  • Len MacDonell
    "There is the HOA meetings , where everyone sits around and argues about where to spend the money. We need new sewage plumbing system and pave to driveways, but the members decide to repaint the tennis court and buy new furniture for the poolside, very special."
    5
    Flag
  • Shubhanga Scott
    "It’s a nice Newer up and coming area. New construction is happening here so excited for new offerings. "
    2
    Flag
  • Sara Thuemmler
    "Everyone here are very friendly and helpful keeping an eye out for any potential outside of the community problems, "
    1
    Flag
  • Bayard C.
    "So much to do, boating, great restaurants, golf, church, walk anywhere in the community, Hunters Valley has condos with 2 car garages, and privacy, and we love our pets and wildlife. Don't get me started on the Black Swans. Move here, it is Paradise!"
    1
    Flag
  • Trulia User
    "Friendly neighbors, quiet area but also lot of kids live here. Upscale neighborhood and it is safe. "
    0
    Flag
  • Trulia User
    "Dog walkers get to know each other and their dogs, too. Easy to walk in streets with light traffic. Lots of walking in the general area."
    0
    Flag
  • Trulia User
    "We liKe it all. It is a very, very nice place to raise a family. I’m not sure about any thing else. I just like to check out what is available in the area, th E big sky country in the richest hill on earth."
    0
    Flag
  • Trulia User
    "It is a friendly neighborhood. The lots are large with wonderful walking trails. It is a safe area and pet friendly."
    0
    Flag
  • Richard T.
    "It is a beautiful place to life with lots of things close by. Restaurants food truck stops wal mart target Best Buy chick fil a liquor stores. Basically it has everything you could ever want or need.12 min to the beach. Super nice. Easy going place . "
    17
    Flag
  • Lynette
    "Good neighborhood nice parks needs ace hardware and larger grocery store besides sprouts . Need s another drive through eating place other than what is on Los posas and Grand"
    4
    Flag
  • Liliana A.
    "I’ve lived here for 12 years and I’ve never had any issues with neighbors, burglaries or violence. I take walks with my kids weekly and enjoy the nice kept area and parks as well as the friendly neighbors."
    7
    Flag
  • Christina H.
    "This community has popular music concerts in the parks and at San Marcos Lake. The community responds well to events held here."
    0
    Flag
  • Elsie B.
    "I drive to and from work. The stores are not within walking distance. The area is still nice enough to talk a beautiful walk. Kids parks and trails are close by. "
    2
    Flag
  • Patty A.
    "Very quiet, peaceful, and great weather. The school are great! I love how close to the beaches we are. Lots so cool stuff to do around here."
    0
    Flag
  • Mark E.
    "Park across the street from where we live and , a very Pet friendly neighborhood . And we all pick up after our pets "
    0
    Flag
  • Cnkatcher
    "Many dog owners in this neighborhood and walking your dog is a common sight both during the time as well as at night time."
    0
    Flag
  • Sutavim2
    "Abundance of dog friendly paths throughout the neighborhood. There are also waste bags available on each trail."
    3
    Flag
  • Tabitha N. D.
    "I have lived in San Marcos for just under 3 years. It’s a nice area and feels homie. It’s easy to get to San Diego or LA. The street are small and not built for a lot of traffic. But not the worst in so cal. "
    0
    Flag
  • Daddyful
    "good for growing families with lots of parks within a 3 mile radius. very family friendly. good schools as well."
    0
    Flag
  • Jim C.
    "It’s family friendly with great schools and solid civic services. Strong on neighborhood watch and faith based institutions. "
    0
    Flag
  • Jessica E.
    "There are so many great schools nearby. Lots of great places to eat and drink. Neighborhoods are generally very safe. "
    0
    Flag
  • Adriana A.
    "There are many families, good schools, and shopping nearby. pet friendly. Public transportation available nearby as well. There are also many elderly communities nearby as well."
    0
    Flag
  • Obryantlocksmith
    "Dogs of all breeds and sizes are welcome as long you can keep them under control. Having your dog trained is a definite plus since there are so many other dogs around."
    2
    Flag
  • GGsol
    "there are many young families like us. lots of choices of parks and trails around. quiet neighborhood and always feels safe walking, good stores and restaurants are so close, the schools are fantastic."
    1
    Flag
  • Blaine A. I.
    "there are a lot of dogs in the area. anytime you drive down the street you will see multiple dog walkers along the street. this is a great area for your four legged companion."
    0
    Flag

LGBTQ Local Legal Protections

Frequently asked questions about 3909 Grandon Ave

  • What is 3909 Grandon Ave estimated to be worth?
    Trulia's estimated value for 3909 Grandon Ave in San Marcos, CA is $769,700.
  • Is San Marcos a buyer's or seller's market?
    San Marcos is currently a seller's market, based on recent for-sale activity.
  • What's the median sale price in San Marcos?
    The median sale price in San Marcos is $941K. That is up $11.67K from the prior month.
  • What do residents say about San Marcos?
    Residents describe San Marcos, CA as dog-friendly, pedestrian-friendly, and easy to park in. See recently sold homes in San Marcos, CA.
  • Does 3909 Grandon Ave have laundry facilities?
    Yes, 3909 Grandon Ave in San Marcos, CA has in-unit laundry.
  • How big is the lot at 3909 Grandon Ave?
    The lot at 3909 Grandon Ave in San Marcos, CA is about 0.14 acres (6,000 sq ft).

Explore by feature - Pet Friendly

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Off Market Homes Near 3909 Grandon Ave

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