For sale

$155,629

Est. $1,169/mo —

•

1,100

sq ft

4603 Keystone St, Houston, TX 77021

About this home

LOCATION! LOCATION! LOCATION! Charming single-story home available within the loop just mere minutes from Downtown Houston, The Medical Center, The Museum District, The University of Houston, and Texas Southern University. The home consists of 3 bedrooms, and 1 bathroom. The spacious living room, designated dining area, and kitchen are all perfect for family gatherings and events. WE MAKE IT EASY TO OWN. This is a great opportunity! Don't wait, call us today to get more information on the owner's easy terms and smooth process that can put the deed in your name and make this your dream home.

Single-familyProperty Type

1940Year Built

6,420 sq ftLot Size

$141Price/Sq.Ft.

Listed by Chet Polniazek • 1st Texas Realty Services

Listing updated: Aug 18, 2026 at 08:09am

Redfin checked: 2 minutes ago

•Source:HARMLS #46706873

Payment calculator

$1,169 per month

Principal and interest$808

Property taxes

$226

HOA dues

Home insurance

$135

Utilities

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Open houses

No upcoming open houses.

Nearby open houses (10)

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REDFIN OPEN SAT, 1:30PM TO 3:30PM3D WALKTHROUGH
$400,000
3 beds3.5 baths2,294 sq ft
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REDFIN OPEN SAT, 2PM TO 4PM3D WALKTHROUGH
$425,000
3 beds2.5 baths2,127 sq ft
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OPEN SAT, 2PM TO 4PM
$1,425,000
3 beds3 baths3,308 sq ft
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OPEN SUN, 12PM TO 2PM3D WALKTHROUGH
$499,000
3 beds3.5 baths2,080 sq ft
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6249 Overbrook Ln, Houston, TX 77057
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Around this home

Schools

K - 12
Preschool & daycare

Peck Elementary School

Public PreK-5 • Assigned • 1.0mi

7/10

Cullen Middle School

Public 6-8 • Assigned • 1.1mi

4/10

Yates High School

Public 9-12 • Assigned • 1.9mi

5/10

Provided by GreatSchools

About Greater Ost-South

Union

Greater Ost-South Union, located between OST and South Union, is a residential and institutional Houston neighborhood with mid-century brick homes and broad, tree-lined streets. The neighborhood’s character concentrates around the University of Houston campus edge near Calhoun Rd and Wheeler Ave, where student-foot-traffic, coffee counters, and campus venues set the daily rhythm. Architectural lines lean ranch-style and postwar infill, with deep setbacks and long driveways. University of Houston’s Cullen Performance Hall and the Blaffer Art Museum act as cultural anchors, while TDECU Stadium brings game-day energy. Green breaks appear at nearby MacGregor Park, and METRORail access at Palm Center Transit Center links the area to Downtown.

Provided by Walk Score and Local Logic

Market insights

4603 Keystone St · $155,629

DAYS ON MARKET

The average home goes pending in 46 days.

SALE-TO-LIST

Most homes are selling 2% below list price.

LIST PRICE

Median list price in this area is $339,000. (118% higher than this home)

PRICE DROP

27% of homes in this area have had a price drop in the past month.

Property details

Interior
Exterior
Finance

Kitchen

Bathroom

Bedroom

Living

Interior features
Two total rooms

Bedrooms
Primary bedroom on the first floor
Second bedroom on the first floor (10 x 10)

Bathrooms
One full bathroom

Sale and tax history for 4603 Keystone St

Sale History
Tax History

Year

Property tax

Land + Additions

Assessment*

2025

$2,957 (+8.3%)

$97,070 + $42,069

$139,139

2024

$2,731 (+0.5%)

$97,070 + $33,438

$130,508

2023

$2,717 (−2.6%)

$88,505 + $46,344

$134,849

2022

$2,790 (+60.4%)

$79,940 + $46,791

$126,731

2021

$1,739 (+31.8%)

$48,535 + $26,090

$74,625

2020

$1,320 (+9.0%)

2019

$1,211 (+2.3%)

$31,405 + $18,595

$50,000

2018

$1,183 (+9.0%)

$25,695 + $21,070

$46,765

2017

$1,085 (+10.0%)

2016

$987 (+9.7%)

2015

$900 (+8.6%)

2014

$829 (+0.4%)

$14,275 + $18,006

$32,281

2013

$826 (−7.5%)

$14,275 + $18,006

$32,281

2012

$893 (+9.3%)

$14,275 + $18,006

$32,281

2011

$816 (−8.5%)

2010

$893 (−3.7%)

2009

$927

Public record

Public record
Permits

Beds

Baths

Stories

Lot width

—

Lot depth

—

Lot size

6,420 Sq. Ft.

Year renovated

1940

Finished Sq. Ft.

1,100

Unfinished Sq. Ft.

—

Total Sq. Ft.

1,100

Year built

1940

Style

Single Family Residential

County

Harris County

APN

0691060110026

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Feb 4, 2026.

Climate risks

7/10 Flood Factor

Estimated 80%+ chance of a flood reaching the building in the next 30 years

1/10 Fire Factor

Unlikely to be in a wildfire in next 30 years

9/10 Heat Factor

7 days above 109° expected this year, 24 days in 30 years

9/10 Wind Factor

99% chance of strong winds in next 30 years

2/10 Air Factor

2 unhealthy days expected this year, 2 days in 30 years

Provided by First Street

Historical weather

Houston, TX • 77021

Average low and high temperatures (°F)

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Sun exposure

89/ 100

Very good sunlight

Sunscore

There appears to be minimal shading by surrounding buildings, terrain, and vegetation.

8.7 hrs

5.5 hrs

JuneDecember

Provided by Shadowmap

Redfin Estimate for 4603 Keystone St

$148,773

$6,856 under list price of $156K

Nearby comparable homes

The Redfin Estimate uses 4 recent nearby sales, priced between $195K to $230K.

SOLD JUN 12, 2026
$230,000 Last sold price
3 beds2 baths1,089 sq ft
6320 Paris St, Houston, TX 77021
$70/sq ft
smaller lot
81 years newer
SOLD JUN 12, 2026
$205,000 Last sold price
3 beds2 baths1,089 sq ft
6427 Paris St, Houston, TX 77021
$47/sq ft
smaller lot
85 years newer
SOLD JUL 24, 2026
$195,000 Last sold price
4 beds2 baths1,677 sq ft
4522 Dewberry St, Houston, TX 77021
$25/sq ft
5 years newer
SOLD NOV 17, 2025
$214,900 Last sold price
3 beds2 baths1,100 sq ft
4521 Kingsbury St, Houston, TX 77021
$54/sq ft
larger lot
2 years newer

Rental earnings

Est. $1,481 per month, based on comparable rentals

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