3520 Shellcastle Ln
Round Rock, TX 78681
Mayfield Ranch Enclave- 5 Beds
- 4 Baths
- 3,161 sqft (on 0.26 acres)
5 Beds
4 Baths
3,161 sqft
(on 0.26 acres)
Home Value
Trulia Estimate
$547KSince last month
Decreased$13K (-2.3%)Since last year
Decreased$11K (-1.9%)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 +60% in the last 10 years
| Month | Estimated value |
|---|---|
2026 | |
| August 2026 | $546K |
| July 2026 | $559K |
| June 2026 | $564K |
| May 2026 | $563K |
| April 2026 | $566K |
| March 2026 | $564K |
| February 2026 | $552K |
| January 2026 | $529K |
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 |
|---|---|---|---|---|---|---|---|
0.37 | Single-Family Home | - | 10/10/25 | 5 | 2.5 | 3,452 | |
0.23 | Single-Family Home | - | 08/18/26 | 4 | 2.5 | 2,581 | |
0.43 | Unknown | - | 02/08/26 | - | - | ||
0.21 | Single-Family Home | - | 09/25/25 | 4 | 3 | 2,615 | |
0.28 | Single-Family Home | - | 04/27/26 | 4 | 3 | 2,634 | |
0.09 | Single-Family Home | - | 05/08/26 | 3 | 2 | 2,280 | |
0.30 | Single-Family Home | - | 08/04/26 | 4 | 2.5 | 2,540 | |
0.32 | Single-Family Home | - | 04/30/26 | 3 | 2.5 | 2,488 | |
0.38 | Single-Family Home | - | 07/31/26 | 4 | 2.5 | 2,373 | |
0.42 | Single-Family Home | - | 05/14/26 | 4 | 3.5 | 2,503 |
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 |
|---|---|---|---|---|---|---|
0.09 | $439,000 | 4 | 2 | 2,050 | For Sale | |
0.09 | $415,400 | Studio | 3 | 1,846 | Off Market | |
0.16 | $539,000 | 4 | 2.5 | 2,606 | For Sale | |
0.11 | $450,000 | 3 | 2 | 1,925 | Off Market | |
0.12 | $494,000 | 3 | 2 | 2,318 | Off Market | |
0.14 | $365,000 | 3 | 2 | 1,528 | For Sale | |
0.19 | $455,400 | 3 | 2 | 2,060 | Off Market | |
0.20 | $355,000 | 3 | 2 | 1,498 | For Sale | |
0.20 | $355,000 | 3 | 2 | 1,456 | For Sale | |
0.27 | $569,000 | 4 | 2.5 | 3,156 | For Sale | |
0.24 | $456,600 | 3 | 2.5 | 2,415 | Off Market | |
0.35 | $364,600 | 3 | 2.5 | 1,806 | Off Market |
Local Information
-- mins to
Home Highlights
Property Type
Single-Family Home
Year Built
2006
Lot Size
0.26 acres
Living Area
3,161 sqft
Price/Sqft
$173
Parking
Garage
About this House
Well maintained and spacious 5 bedroom home with office and loft. Located in highly rated Round Rock Independent School District. Relax in the privacy of extended patio surrounded by beautifully landscaped backyard. Convenient to multitude of shopping, restaurants and parks.
3520 Shellcastle Ln, Round Rock, TX 78681 is a 5 bedroom, 4 bathroom, 3,161 sqft single-family home in Mayfield Ranch Enclave, built in 2006. More recently, it was listed as a rental in November 2017 with an asking price of $2,150 per month. That rental listing was removed on January 2, 2018. It is currently off market. The Trulia Estimate is $546,800, with a rent estimate of $2,913/month.
Home Details for 3520 Shellcastle Ln
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Heating & Cooling Heating: Forced AirAir ConditioningCooling System: CentralHeating Fuel: Forced Air |
Levels, Entrance, & Accessibility Stories: 2Floors: Tile, Hardwood |
Interior Details Types of Rooms: Office |
Appliances & Utilities DishwasherDisposalMicrowave |
Fireplace & Spa Fireplace |
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Exterior Home Features Roof: CompositionExterior: OtherFoundation Type: SlabPatio |
Parking & Garage GarageParking Spaces: 3Parking: Garage Attached |
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Year Built Year Built: 2006Year Updated: 2007 |
Property Type / Style Property Type: Single Family HomeArchitecture: Other |
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Lot Area: 0.26 acres |
Price and Tax history
| Date | Event | Price |
|---|---|---|
Jan 2, 2018 Source: Agent Provided | ListingRemoved | $2,150 |
Nov 20, 2017 Source: Agent Provided | Listed For Rent | $2,150 |
Aug 5, 2016 Source: Agent Provided | ListingRemoved | $345,000 |
Jun 23, 2016 Source: Agent Provided | Pending | $345,000 |
Jun 13, 2016 Source: Agent Provided | PendingToActive | $345,000 |
Jun 5, 2016 Source: Agent Provided | Pending | $345,000 |
Jun 2, 2016 Source: Agent Provided | Listed For Sale | $345,000 |
| Year | Property tax | Tax assessment |
|---|---|---|
| 2025 | $11,464 | $637,124 |
Home facts updated by county records
Market trends in Round Rock
Last updated July 2026
Avg. sale price
$400K
$6.95KMoM
Sale-to-List Price
98.7%
Price per sq ft
$197
$1MoM
Available listings
870
44MoM
Around this home
What Locals Say about Mayfield Ranch Enclave
At least 27 Trulia users voted on each feature.
100 % Say yards are well-kept
95 % Say car is needed
94 % Say kids play outside
93 % Say there's holiday spirit
93 % Say it's dog friendly
91 % Say parking is easy
89 % Say people would walk alone at night
88 % Say it's quiet
83 % Say there are sidewalks
79 % Say streets are well-lit
73 % Say there are community events
70 % Say there's wildlife
66 % Say neighbors are friendly
65 % Say they plan to stay for at least 5 years
Sourced by Trulia users. Learn more about our methodology.
LGBTQ Local Legal Protections
LGBTQ Local Legal Protections
Frequently asked questions about 3520 Shellcastle Ln
- What is 3520 Shellcastle Ln estimated to be worth?Trulia's estimated value for 3520 Shellcastle Ln in Round Rock, TX is $546,800.
- Is Round Rock a buyer's or seller's market?Round Rock is currently a balanced market, based on recent for-sale activity.
- What's the median sale price in Round Rock?The median sale price in Round Rock is $400K. That is up $6.95K from the prior month.
- What do residents say about the Mayfield Ranch Enclave neighborhood?Residents describe the Mayfield Ranch Enclave neighborhood in Round Rock, TX as well-kept, dog-friendly, and easy to park in. Most residents say you need a car. See recently sold homes in Mayfield Ranch Enclave, Round Rock.
- Does 3520 Shellcastle Ln have air conditioning?Yes, 3520 Shellcastle Ln in Round Rock, TX has air conditioning.
- How big is the lot at 3520 Shellcastle Ln?The lot at 3520 Shellcastle Ln in Round Rock, TX is about 0.26 acres (11,194 sq ft).

