---
title: "21646 Karpathos Ln, Spring, TX 77388: DSCR and rental numbers | DSCR Labs"
description: "Spring rental numbers: rent about $1,920 a month, DSCR 0.84 at 25% down, taxes 2.42% a year. A free Greater Houston DSCR report, updated Oct 9, 2026."
url: https://calculator.dscrlabs.com/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 Oct 9, 2026.

## Summary

At the starting numbers, this home is not a good fit for a DSCR loan. You’d put in a lot of money each month, fewer lenders would make this loan and getting this price would be hard. The rent covers the monthly payment 0.84 times (DSCR 0.84), and you would put in $678 a month after vacancy and reserves.

For the rent to cover the payment 1.2 times, the price would need to be about $140,000, 44% under the estimated home value. That would be close to impossible to get. A rent of about $2,721 a month would cover the payment 1.2 times, above the likely range of $1,790 to $2,050. The home is in a municipal utility district (MUD): BRIDGESTONE MUD adds 0.49% to the tax rate, and the county labels it a developing district whose rate can change. Before making an offer, ask a local leasing agent what homes like this one have actually leased for.

## The numbers at the default assumptions

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

| | |
| --- | ---: |
| Price | $252,700 (the estimated home value) |
| Down payment | 25% ($63,175) |
| Interest rate (estimate) | 7.92% |
| Monthly payment (PITIA) | $2,267 |
| Principal and interest | $1,379 |
| Property taxes | $551 |
| Insurance | $243 |
| HOA dues | $94 |
| Rent (estimate) | $1,920 (likely $1,790 to $2,050, from 15 rentals) |
| DSCR | 0.84 (the rent covers the payment 0.84 times) |
| Monthly cash flow | −$678 |
| Cash to close | $70,756 |
| Cash-on-cash return | −11.49% |

## 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://calculator.dscrlabs.com/methodology.md

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

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