Homes Under $400K in San Marcos, TX

263 active homes under $400k in San Marcos, TX · The median list price in San Marcos is $335,000.

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$355,000

105 Harborside DR #102, San Marcos TX 78666

MLS #247188501 · Realty Texas LLC · Ysolette Dailey

3 bd·2.5 ba·1,747 sqft

Motivated SellerNew Construction

$257,999

354 Trinity River HOLW, San Marcos TX 78666

MLS #247190421 · Keller Williams City-View · Christopher Marti

4 bd·2 ba·1,859 sqft

Quick Move-In

$289,990

144 Ballyneal LN, San Marcos TX 78666

MLS #247244135 · Keller Williams Realty · Justin Rourke

4 bd·2 ba·1,871 sqft

New Construction

$389,882

244 Wild Honeysuckle WAY, San Marcos TX 78666

MLS #247251542 · David Weekley Homes · Jimmy Rado

2 bd·2 ba·1,568 sqft

Quick Move-In

$165,000

1604 Mill ST #B, San Marcos TX 78666

MLS #247256905 · Monica & Company Real Estate · Katie Molina

2 bd·2 ba·1,031 sqft

Motivated SellerNew Construction

$278,999

156 Little Prairie VLY, San Marcos TX 78666

MLS #247270997 · Keller Williams City-View · Christopher Marti

4 bd·2 ba·2,014 sqft

Quick Move-In

Price CutNew Construction

$308,999

160 Little Prairie VLY, San Marcos TX 78666

MLS #247271002 · Keller Williams City-View · Christopher Marti

4 bd·3 ba·2,157 sqft

Quick Move-In

Motivated SellerNew Construction

$273,999

203 Navidad River DR, San Marcos TX 78666

MLS #247272138 · Keller Williams City-View · Christopher Marti

4 bd·2 ba·2,193 sqft

Quick Move-In

$265,000

1905 Castle Gate CIR, San Marcos TX 78666

MLS #247099740 · Central Texas Trinity Realty · Lucy Gamez

3 bd·2 ba·1,194 sqft

Motivated Seller

$179,900

119 Gambel Oak WAY, San Marcos TX 78666

MLS #247061582 · eXp Realty, LLC · Francisco Lopez Reyes

3 bd·2 ba·1,442 sqft

Price Cut

$227,990

1220 Esplanade PKWY, San Marcos TX 78666

MLS #247028177 · Co Op Realty · Paul Kudrle

3 bd·2.5 ba·1,336 sqft

Price Cut

$379,990

120 Bouldin Acres PASS, San Marcos TX 78666

MLS #247007793 · DRB Group Realty, LLC · Chaquia Thomas

5 bd·3 ba·2,785 sqft

Motivated SellerNew Construction

$234,999

342 Trinity River HOLW, San Marcos TX 78666

MLS #247018732 · Keller Williams City-View · Christopher Marti

4 bd·2 ba·1,922 sqft

Quick Move-In

Motivated SellerNew Construction

$238,999

348 Trinity River HOLW, San Marcos TX 78666

MLS #247018735 · Keller Williams City-View · Christopher Marti

4 bd·2 ba·1,676 sqft

Quick Move-In

Price Cut

$339,990

129 Pella PASS, San Marcos TX 78666

MLS #246949791 · DRB Group Realty, LLC · Chaquia Thomas

3 bd·2 ba·1,800 sqft

$375,000

432 Chaste Tree DR, San Marcos TX 78666

MLS #246954528 · Real Broker, LLC · Adam Carter

3 bd·2 ba·1,701 sqft

$273,543

105 Clovis CV, San Marcos TX 78666

MLS #246905411 · ERA Experts · Kent Zarbock

4 bd·2 ba·1,827 sqft

$244,843

1333 Morris LOOP, San Marcos TX 78666

MLS #246907410 · ERA Experts · Kent Zarbock

3 bd·2 ba·1,428 sqft

Motivated SellerNew Construction

$298,999

132 Little Prairie VLY, San Marcos TX 78666

MLS #246916143 · Keller Williams City-View · Christopher Marti

4 bd·2 ba·2,014 sqft

Quick Move-In

Price CutNew Construction

$274,999

144 Little Prairie VLY, San Marcos TX 78666

MLS #246916145 · Keller Williams City-View · Christopher Marti

4 bd·3 ba·2,157 sqft

Quick Move-In

Motivated SellerNew Construction

$238,999

148 Little Prairie VLY, San Marcos TX 78666

MLS #246917402 · Keller Williams City-View · Christopher Marti

4 bd·2 ba·1,676 sqft

Quick Move-In

Motivated SellerNew Construction

$260,999

152 Little Prairie VLY, San Marcos TX 78666

MLS #246917404 · Keller Williams City-View · Christopher Marti

4 bd·2 ba·2,014 sqft

Quick Move-In

Motivated SellerNew Construction

$233,999

334 Trinity River HOLW, San Marcos TX 78666

MLS #246917407 · Keller Williams City-View · Christopher Marti

4 bd·2 ba·1,676 sqft

Quick Move-In

Motivated SellerNew Construction

$197,999

353 Trinity River HOLW, San Marcos TX 78666

MLS #246918473 · Keller Williams City-View · Christopher Marti

4 bd·2 ba·1,500 sqft

Quick Move-In

About Homes Under $400K in San Marcos, TX

Setting a price ceiling is one of the most useful ways to shop, and there are 263 homes for sale under $400K in San Marcos on the market right now, drawn from live MLS data — so you're seeing what's actually available in your range, not a stale list. How far a $400K budget goes depends on the San Marcos market, and the quickest gauge is the median list price shown above: when your ceiling is below the local median you're shopping the lower-priced end of the local market, and when it's near or above the median you're looking at a large share of what's available. Within a $400K budget you'll typically find a mix of property types — houses, condos, and townhomes, and in some areas newer construction — across different sizes, ages, and neighborhoods, so the trade-offs between them are where the real choice lives. You can filter the homes and houses for sale under $400K in San Marcos by beds, baths, and features to narrow the list, and open any listing for its full details and price history. Because HomeLocating is an independent home-search platform — not a national portal — you get a neutral, MLS-sourced view of what $400K actually buys in San Marcos today.

Buying a Home Under $400K in San Marcos

Shopping with a $400K ceiling in San Marcos works best when the number is real, so a few things are worth doing before you tour. Start with a lender: getting pre-approved tells you what you can actually borrow and what your monthly payment looks like at $400K, which is often different from a round budget in your head. Remember that the list price isn't the whole cost — property taxes, any HOA or MUD dues, and insurance all factor into what a home under $400K really costs each month, so it's worth looking at the full number. Within a fixed budget, the choice usually comes down to trade-offs: size, location and commute, the age and condition of the home, and new construction versus resale — deciding which of those matter most to you makes comparing homes far easier. And well-priced homes in a given range can move quickly, so knowing your criteria in advance helps you act when the right one appears. None of this is financial advice, and HomeLocating is not a lender — but it's what keeps a budget from being a guess. Through HomeLocating, you can get help finding and buying a home under $400K in San Marcos directly through the site. When you're ready, browse the listings above and reach out about any that interest you.

Frequently Asked Questions

How many homes are for sale under $400K in San Marcos?

It changes as new listings come on the market and others go under contract. The homes under $400K shown here for San Marcos are drawn from live MLS data, so the count reflects what's actually available right now — the current total is shown with the results above.

What kind of homes can I get under $400K in San Marcos?

It depends on how $400K compares to the local market — the median list price for San Marcos is shown above. Within that budget you'll generally find a mix of houses, condos, and townhomes, and in some areas newer construction, across a range of sizes, ages, and neighborhoods. Filtering by property type and features narrows it to what fits.

How does a $400K budget compare to the San Marcos market?

The simplest gauge is the median list price shown above. If $400K is below the San Marcos median, you're shopping the lower-priced end of the market; if it's near or above the median, your budget covers a large share of what's listed. The live count shows how many homes currently fall under $400K.

How do I know what I can actually afford?

List price is only part of it — your real budget depends on your financing plus property taxes, insurance, and any HOA or MUD dues. Getting pre-approved with a lender tells you what you can borrow and what the monthly payment would be at $400K, so the number is based on your situation rather than a guess.

Are these listings current?

Yes — the homes under $400K shown here are drawn from live MLS data, so you're seeing current listings rather than a stale or padded list. As an independent platform, the goal is an accurate, neutral view of the San Marcos market.

Can HomeLocating help me buy a home under $400K in San Marcos?

Yes. Through HomeLocating, you can get help comparing homes in your budget, understanding the full monthly cost, and handling the offer directly through the site — reach out about any of the listings above.