New Construction vs Resale
New Construction vs Resale Homes in San Marcos: What Buyers Actually Pay
Updated November 3, 2026
Reviewed by:
Head of Growth at TurboHome
Head Agent, California · CalDRE #01997822
New construction homes in San Marcos closed at a median $484/sq ft over the past 12 months, 9.7% less than the $536/sq ft median for resale homes. The median new build sold for $749,900 and measured 1,615 square feet; the median resale sold for $985,000, measured 1,732 square feet and was built in 1998. New homes closed 1.2% below original asking and resales closed 1.3% below original asking, and new construction was 11% of the 746 closings in our MLS feed. Here is the full comparison, including where the new homes are and what is for sale right now.
TurboHome Market Analysis · San Marcos, CA · Closings November 2025 through October 2026 · Active listings as of November 3, 2026 · Published November 2026
Key findings
- Price per square foot: new construction closed at a median $484/sq ft, 9.7% less than the $536/sq ft resale median (-9.7%), so new was cheaper per square foot.
- Price and size: the median new build sold for $749,900 at 1,615 square feet; the median resale sold for $985,000 at 1,732 square feet.
- Days on market: new builds took a median 25 days to go under contract, versus 17 for resales.
- Negotiating room: new homes closed 1.2% below original asking and 36% had a price cut before closing; resales closed 1.3% below original asking, with 32% cut.
- Busiest new-build area: College Area, with 32 new-construction closings at a median $724,000.
- For sale now: new construction is 17% of active inventory (24 listings as of November 3, 2026), and 42% of new listings have been reduced, versus 44% of resale listings.
San Marcos new construction vs resale: the numbers
Closings in San Marcos in our MLS feed, closings november 2025 through october 2026, all home types.
| Metric | New construction | Resale |
|---|---|---|
| Closings | 84 | 662 |
| Median sale price | $749,900 | $985,000 |
| Median $/sq ft | $484/sq ft | $536/sq ft |
| Median living area (sq ft) | 1,615 | 1,732 |
| Median days on market | 25 | 17 |
| Median close vs original asking | 1.2% below original asking | 1.3% below original asking |
| Share sold below original asking | 63.1% | 60.0% |
| Share with a price cut before closing | 36% | 32% |
| Median year built | Year of sale | 1998 |
Price per square foot is the fair comparison because new homes and resales in San Marcos differ in size: the median new build measured 1,615 square feet against 1,732 for a resale, so the median sale price alone mixes up size and value. Close vs original asking compares the final price with the first list price, so it captures builder price cuts made before the sale, not only the last round of negotiation.
Has the new-build premium in San Marcos changed in a year?
| Period | New $/sq ft | Resale $/sq ft | Gap |
|---|---|---|---|
| Closed Nov 2024 to Oct 2025 | $538/sq ft | $544/sq ft | -1.1% |
| Closed Nov 2025 to Oct 2026 | $484/sq ft | $536/sq ft | -9.7% |
New construction in San Marcos fell from $538/sq ft to $484/sq ft, and resale fell from $544/sq ft to $536/sq ft. The new-build discount widened from -1.1% to -9.7% per square foot.
Like for like: single family homes vs condos and townhomes
| Home type | New closings | New median price | New $/sq ft | New median sq ft | New median days on market | New close vs original asking | Resale closings | Resale median price | Resale $/sq ft | Resale median sq ft | Resale median days on market | Resale close vs original asking |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Single family | 12 | $1,185,450 | $485/sq ft | 2,429 | 39 | 3.6% below original asking | 443 | $1,200,000 | $555/sq ft | 2,122 | 15 | 1.1% below original asking |
| Condos and townhomes | 72 | $739,450 | $484/sq ft | 1,497 | 22 | 0.6% below original asking | 219 | $685,000 | $511/sq ft | 1,253 | 23 | 1.7% below original asking |
Condos and townhomes carry the discount: a new unit closed at a median $484/sq ft and 1,497 square feet, against $511/sq ft and 1,253 square feet for a resale condo or townhome. New single family homes closed at $485/sq ft against $555/sq ft for resale houses, but with only 12 new single family closings, read that row as direction rather than a price quote.
Where the new homes are in San Marcos
Areas of San Marcos with the most new-construction closings in our feed, closings november 2025 through october 2026.
| Area | New closings | New median price | New $/sq ft | New median sq ft | New close vs original asking | New median days on market | Resale closings (same area) | Resale $/sq ft (same area) |
|---|---|---|---|---|---|---|---|---|
| College Area | 32 | $724,000 | $483/sq ft | 1,497 | 1.4% below original asking | 35 | 49 | $482/sq ft |
| ZIP 92078 | 15 | $770,546 | $481/sq ft | 1,704 | at original asking | 16 | 0 | n/a |
| Discovery Hills | 12 | $841,950 | $501/sq ft | 1,615 | 1.8% below original asking | 28 | 65 | $524/sq ft |
| Barham | 11 | $759,900 | $434/sq ft | 1,704 | at original asking | 12 | 41 | $488/sq ft |
College Area had the most new-construction closings in San Marcos (32), at a median $724,000 and $483/sq ft, against $482/sq ft for resales in the same area. Areas labeled ZIP are ZIP codes. Area figures rest on far fewer closings than the citywide numbers, so read them as direction rather than a price quote.
What is for sale in San Marcos right now
Active listings in San Marcos in our MLS feed as of November 3, 2026.
| Segment | Active listings | Median list price | Median asking $/sq ft | Median sq ft | Median days on market | Share reduced from original list | Median reduction (reduced listings) |
|---|---|---|---|---|---|---|---|
| New construction | 24 | $746,050 | $501/sq ft | 1,501 | 11 | 42% | 2.0% |
| Resale | 117 | $949,000 | $546/sq ft | 1,650 | 22 | 44% | 4.0% |
As of November 3, 2026, new construction is 17% of the homes for sale in San Marcos: 24 new listings at a median $501/sq ft, against 117 resales at $546/sq ft. 42% of new listings have already been reduced from their original list price, by a median 2.0%, against 44% of resale listings at a median 4.0%.
Why San Marcos new builds cost less
San Marcos new construction is mostly attached: 72 of the 84 new-build closings were condos or townhomes, led by the College Area with 32 new closings at a median $724,000. New condos and townhomes closed at $484/sq ft and 1,497 square feet, against $511/sq ft and 1,253 square feet for resale condos, so a new unit is both cheaper per square foot and larger. Single family new builds were too few (12 closings) to compare on their own. New homes took 25 days to go under contract versus 17 for resales, and 42% of active new listings have been reduced.
Builder incentives and the national picture
Nationally, new homes have been cheaper than existing homes per square foot. Zillow's analysis, reported by HousingWire on September 29, 2026, put the national median at $205 per square foot for new homes versus $212 for existing homes in July 2026. NAHB data reported by Fortune on July 15, 2026 showed the Q1 2026 median new home at $403,200 versus $404,600 for an existing home, the first time new has sold for less since 1974. NAHB's October 2026 Housing Market Index (released October 19, 2026) found 43% of builders cutting prices, an average cut of 6%, and 65% offering incentives such as rate buydowns and closing-cost help.
In San Marcos, the gap is -9.7% per square foot: new construction closed at a median $484/sq ft against $536/sq ft for resales. Builder incentives like rate buydowns, closing-cost credits and free upgrades do not show up in the MLS close price, so the effective new-build discount is larger than the close price shows. A buyer's agent can negotiate those incentives on top of the price.
Monthly payment: new vs resale at today's rate
At 7.24%, the average 30-year fixed rate in Freddie Mac's Primary Mortgage Market Survey for the week of October 29, 2026, with 20% down, principal and interest on the median new home in San Marcos ($749,900) come to $4,088 per month. The median resale ($985,000) comes to $5,370 per month, so the new home costs $1,282 less per month before taxes, insurance, HOA and any builder rate buydown.
Builder-paid rate buydowns can cut the first years of a new-home payment well below the figure shown, and resale sellers can be asked for the same credit.
Should you buy new construction or resale in San Marcos?
- Compare on price per square foot and lot, not list price. The median new build in San Marcos measured 1,615 square feet against 1,732 for a resale, so compare $484/sq ft with $536/sq ft, then check lot size and HOA dues before you compare totals.
- Ask the builder for the incentive sheet and the last three closed prices in the same community. San Marcos new builds closed 1.2% below original asking and 36% had a price cut before closing, so closed prices tell you more than the list price.
- Use your own agent. Builders pay the buyer-side commission in most communities, and a flat-fee agent rebates it to you. Bring your agent to your first visit, because many builders only pay an agent who registered you.
- Get an independent inspection, even on a new home. City inspections check code minimums, not workmanship. Ask for a pre-drywall inspection and a final inspection before closing.
- For resale, use the share-reduced figure to find motivated sellers. 44% of resale listings in San Marcos have been cut from their original price, by a median 4.0%, and those sellers are the most open to an offer.
Methodology
We looked at closings of single family homes, condos and townhouses in San Marcos from our MLS feed, closed November 2025 through October 2026 (the prior 12 months for the year-over-year comparison), with implausible prices and sizes removed. A closing is counted as new construction when the listing was flagged as new construction or the home was built in the year of sale or the year before; everything else is resale. "Close vs original asking" is the median of close price divided by the original list price, so it includes price cuts made before the sale.
Active listings are as of November 3, 2026. Figures are medians unless stated. Published November 2026. New single family closings in San Marcos are a thin segment (12 closings), so the single family row is shown for direction only.
Frequently asked questions
Are new construction homes cheaper than resale in San Marcos?
Yes, per square foot. New construction in San Marcos closed at a median $484/sq ft over the past 12 months, 9.7% less than the $536/sq ft median for resale homes (-9.7%).
How much does a new construction home cost in San Marcos?
The median new construction home in San Marcos sold for $749,900 and measured 1,615 square feet, at $484/sq ft. For contrast, the median resale sold for $985,000 at 1,732 square feet.
Do builders in San Marcos negotiate on price?
New homes in San Marcos closed 1.2% below original asking, 63.1% sold below original asking and 36% had a price cut before closing. Resales closed 1.3% below original asking, with 60.0% below original asking and 32% cut. Builder incentives such as rate buydowns and closing-cost credits come on top and are not in those figures.
Has the new-build premium in San Marcos changed?
The gap per square foot moved from -1.1% for closings November 2024 to October 2025 to -9.7% for November 2025 to October 2026. New construction went from $538/sq ft to $484/sq ft, and resale from $544/sq ft to $536/sq ft.
Where are the new construction homes in San Marcos?
The most new-construction closings in San Marcos were in College Area (32), ZIP code 92078 (15) and Discovery Hills (12). As of November 3, 2026, 24 new-construction homes were listed for sale.
Related TurboHome guides
- New construction vs resale homes, by city
- San Diego County home buying guides
- San Elijo Hills new homes
- California home buying guides
Buy new or resale in San Marcos with a flat-fee buyer's agent
About the Author
Vinura Abeysundara
Vinura Abeysundara is a real estate and growth professional with experience scaling homebuying platforms across Canada and the United States. Formerly Head of Growth at Zown, he now works with TurboHome and writes about homebuyer savings, flat-fee real estate, commissions, and technology in real estate.
View Vinura on LinkedInAbout Kevin Kretzmer
Head Agent, California
Kevin Kretzmer leads TurboHome's California agent team and reviews California and national buyer guidance for practical brokerage accuracy.
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