---
title: "21646 Karpathos Ln, Spring, TX 77388: DSCR and rental numbers | DSCR Labs"
description: "Spring rental numbers: rent about $1,900 a month, DSCR 1.22 at 25% down, taxes 2.42% a year. A free Greater Houston DSCR Snapshot, updated Nov 3, 2026."
url: https://dscrlabs.com/calculator/tx/spring/21646-karpathos-ln-77388/wa9f3ds3
---

# 21646 Karpathos Ln, Spring, TX 77388

Not for sale right now. 3 bedrooms, 2 bathrooms, 1,691 sq ft, built 2005. Updated Nov 3, 2026.

## Summary

At the starting numbers, this home is not a good fit for a DSCR loan. Getting this price would be close to impossible and the return on your cash is low. You would put in $21 a month after vacancy and reserves, so the cash on cash return is 0.6% a year. The rent covers the monthly payment 1.22 times.

For the numbers to work, the rent already covers the payment 1.2 times at your price. The BRIDGESTONE MUD adds 0.49% to the tax rate. Rents in Greater Houston have been flat, so the numbers assume 8% vacancy and no rent growth. Before you make an offer, get a real landlord insurance quote and a lender term sheet to firm up these estimates.

## The numbers at the default assumptions

With 25% down and the estimated rate. Try your own numbers on the page.

| | |
| --- | ---: |
| Price | $127,000 (half the asking price or value) |
| Down payment | 25% ($31,750) |
| Renovation budget | $10,000 (paid in cash) |
| Interest rate (estimate) | 7.46% |
| Monthly payment (PITIA) | $1,552 |
| Principal and interest | $664 |
| Property taxes | $552 |
| Insurance | $243 |
| HOA dues | $94 |
| Rent (estimate) | $1,900 (likely $1,760 to $2,050, from 15 rentals) |
| DSCR | 1.22 (the rent covers the payment 1.22 times) |
| Monthly cash flow | $21 |
| Cash to close | $45,560 |
| Cash-on-cash return | 0.56% |

## Taxes

Combined tax rate 2.42% a year (2026 rates), including a MUD. It uses no homestead exemption, because that ends when a home sells.

## Flood and insurance

FEMA flood zone X. Insurance estimate: $2,185 to $3,641 a year.

## Before you rely on these numbers

- Every number here is an estimate. Before you make an offer, get a lender’s quote, an insurance quote, and a recent lease nearby to check the rent.
- Property taxes reset after a purchase. The seller’s exemptions and caps don’t transfer, and the taxable value moves toward your price.
- Get a real landlord insurance quote. Prices vary a lot by ZIP code, roof age and flood zone.
- Check the rent against a recent lease nearby. Lenders use the lower of your signed lease and the appraiser’s rent estimate.
- Texas doesn’t make sale prices public, so every home value estimate here is rough. Ask an agent for recent sales nearby before you make an offer.

## Sources

U.S. Census Bureau, county tax records, FEMA’s flood map, the Texas Department of Insurance and RentCast. See how we make these reports: https://dscrlabs.com/calculator/methodology.md

Try your own price, down payment and rent on the report page: https://dscrlabs.com/calculator/tx/spring/21646-karpathos-ln-77388/wa9f3ds3

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[Greater Houston DSCR Calculator](https://dscrlabs.com/) by [DSCR Labs](https://dscrlabs.com/). This is an estimate, not a loan approval.