For sale

$125,000

Est. $974/mo

Land

•

7,191

sq ft (lot)

4604 Keystone St, Houston, TX 77021

About this home

Vacant landProperty Type

7,191 sq ftLot Size

$17Price/Sq.Ft.

Listed by Kelly Tran • Blair Realty Group

Listing updated: Oct 27, 2026 at 04:27pm

Redfin checked: a few seconds ago

•Source:HARMLS #78095120

Payment calculator

$974 per month

Principal and interest$682

Property taxes

$184

HOA dues

Home insurance

$108

Utilities

Add

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Open houses

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Around this home

Schools

K - 12
Preschool & daycare

Peck Elementary School

Public PreK-5 • Assigned • 1.0mi

6/10

Cullen Middle School

Public 6-8 • Assigned • 1.1mi

4/10

Yates High School

Public 9-12 • Assigned • 2.0mi

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

Property details

Exterior

Exterior features
Cleared lot
Located in a subdivision

Home design
Land

Utilities
Public water
Public sewer
Electricity available
Natural gas available

Sale and tax history for 4604 Keystone St

Sale History
Tax History

Year

Property tax

Land + Additions

Assessment*

2026

$2,202

$103,600

2025

$2,202 (+1.6%)

$103,600

2024

$2,168 (+13.9%)

$103,600

2023

$1,903 (+1.3%)

$94,473

2022

$1,879 (+55.6%)

$85,330

2021

$1,207 (+50.1%)

$51,808

2020

$804 (−0.9%)

$33,523

2019

$812 (+12.2%)

$33,523

2018

$724 (+0.2%)

$28,596

2017

$722 (−36.1%)

$27,428 + $1,168

$28,596

2016

$1,130 (+12.4%)

$27,428 + $1,168

$28,596

2015

$1,005 (+8.5%)

$27,428 + $17,275

$44,703

2014

$926 (+0.4%)

$15,238 + $20,804

$36,042

2013

$922 (−7.5%)

$15,238 + $20,804

$36,042

2012

$997 (+9.3%)

$15,238 + $20,804

$36,042

2011

$912 (+56.6%)

2010

$582 (−3.7%)

2009

$604

Public record

Public record
Permits

Beds

—

Baths

—

Stories

—

Lot width

—

Lot depth

—

Lot size

7,190 Sq. Ft.

Year renovated

—

Finished Sq. Ft.

—

Unfinished Sq. Ft.

—

Total Sq. Ft.

—

Year built

—

Style

Vacant Land

County

Harris County

APN

0691060100002

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Sep 11, 2026.

Climate risks

6/10 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

96/ 100

Exceptional sunlight

Sunscore

This home ranks in the top 15% for direct sun exposure in Houston. There appears to be minimal shading by surrounding buildings, terrain, and vegetation.

8.8 hrs

6.6 hrs

JuneDecember

Provided by Shadowmap

Redfin Estimate for 4604 Keystone St

$124,656

$344 under list price of $125K

Nearby comparable homes

The Redfin Estimate uses 6 recent nearby sales, priced between $70K to $349K.

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SOLD JUN 29, 2026
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SOLD JUN 3, 2026
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Land— sq ft
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smaller lot
SOLD MAY 31, 2026
$70,000 Last sold price
Land— sq ft
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smaller lot
SOLD JUL 7, 2026
$349,000 Last sold price
3 beds2.5 baths1,827 sq ft
6115 Grace Ln, Houston, TX 77021
smaller lot
SOLD OCT 1, 2026
$249,000 Last sold price
3 beds1 bath1,404 sq ft
6518 Paris St, Houston, TX 77021
smaller lot