For sale

$330,000

Est. $2,260/mo —

•

1,474

sq ft

21 Union St, New Baltimore, NY 12124

About this home

Step back in time while enjoying modern comforts in this charming historic home dating back to the 1800s. Rich in character and timeless appeal, this inviting property blends old-world charm with thoughtful updates. Ideally situated just moments from the Hudson River, the popular Boathouse Grill, and Yanni's, it offers a wonderful opportunity to enjoy the beauty and lifestyle of the Hudson Valley. Since 2020, numerous improvements have enhanced the home's comfort and functionality, including a Navien heating system, new roof and gutters, updated baseboard heating pipes, and a new water heater. Additional updates include a washer and dryer, stove, dishwasher, refrigerator, and butcher block countertops. The bathroom has also received updates, featuring a charming clawfoot tub that adds a touch of vintage elegance. With its historic character, inviting charm, and convenient location near the river and local dining, this delightful home offers a special blend of history, comfort, and small-town appeal. A wonderful place to call home or enjoy as a Hudson Valley getaway all within 2.5 hours of NYC!

Single-familyProperty Type

1820Year Built

0.51 acresLot Size

$224Price/Sq.Ft.

Listing by Melissa Cox • Keller Williams Realty HV Nort

Listing by Dave Merchant • Keller Williams Realty HV Nort

Listing updated: Oct 27, 2026 at 12:23pm

Redfin checked: 2 minutes ago

•Source:HVCRMLS #20266352

Payment calculator

$2,260 per month

Principal and interest$1,801

Property taxes

$410

HOA dues

Home insurance

$50

Utilities

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Open houses

No upcoming open houses.

Nearby open houses (10)

OPEN SAT, 11AM TO 1PM
$350,000
3 beds2 baths1,250 sq ft
2275 State Route 385, Athens, NY 12015
1.6 acre lot • Built 1956 • Listed 8 days
OPEN SAT, 11AM TO 1PM
$1,495,000
3 beds2.5 baths2,415 sq ft
111 Hennett Rd, Kinderhook, NY 12184
12.15 acre lot • Garage • Built 2018
Listing by William Pitt Sothebys Int Rlty
OPEN SAT, 11AM TO 1PM
$1,495,000
3 beds2.5 baths2,415 sq ft
111 Hennett Rd, Kinderhook, NY 12106
12.15 acre lot • Garage • Built 2018
OPEN SAT, 11AM TO 1PM
$299,999
3 beds1.5 baths1,230 sq ft
11 Griswald St, Nassau, NY 12123
0.24 acre lot • 4 parking spots • Built 1900
Listing by Beach & Bartolo Realtors Inc
OPEN SAT, 12PM TO 2PM
$475,000
3 beds1.5 baths1,527 sq ft
1840 State Route 9, Stuyvesant, NY 12173
0.95 acre lot • Pool • Built 1790
OPEN SAT, 12PM TO 2PM
$499,000
4 beds2.5 baths2,080 sq ft
6427 Peters Ln, Valatie, NY 12184
0.5 acre lot • 2 garage spots • Pool
Listing by Coldwell Banker Prime Properties
OPEN SAT, 1PM TO 2:30PM
$429,000
4 beds2 baths1,144 sq ft
6020 Marion Blvd, Valatie, NY 12184
0.46 acre lot • 2 garage spots • Built 1999
Listing by Berkshire Hathaway Home Services Blake
OPEN SUN, 11AM TO 1PM3D WALKTHROUGH
$549,000
4 beds3 baths3,084 sq ft
18 Bri-lan Ave, East Greenbush, NY 12061
0.42 acre lot • 2 garage spots • Pool
Listing by Signature One Realty Group LLC
OPEN SUN, 12PM TO 2PM
$449,000
2 beds1.5 baths1,200 sq ft
1400 US Route 9, Hudson, NY 12534
4.2 acre lot • 2 garage spots • Built 2008
Listing by Coldwell Banker Prime Properties
OPEN SUN, 12PM TO 2PM3D WALKTHROUGH
$450,000
2 beds1 bath1,292 sq ft
431 Ridge Rd, Schodack Landing, NY 12156
4 acre lot • 3 garage spots • Built 1940
Listing by Romeo Team Realty

Around this home

Schools

K - 12
Preschool & daycare

Pieter B Coeymans School

Public PreK-5 • Assigned • 2.2mi

2/10

Ravena Coeymans Selkirk Middle School

Public 6-8 • Assigned • 4.2mi

6/10

Ravena Coeymans Selkirk Senior High School

Public 9-12 • Assigned • 4.2mi

4/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Offer insights

21 Union St · $330,000

Strong offer

$334K and above

75% chance or better to win

Why $334K+ is a strong offer

DAYS ON MARKET

The average home goes pending in 65 days.

SALE-TO-LIST

Most homes are selling 3% below list price.

About offer insights

Property details

Interior
Exterior
Finance

Kitchen

Bathroom

Bedroom

Living

Dining

Bathrooms
2 full bathrooms

Kitchen
Dishwasher
Microwave
Range
Refrigerator

Laundry & utility
Washer
Dryer

Heating & cooling
Propane heating

Interior features
Unfinished basement

Sale and tax history for 21 Union St

Sale History
Tax History

Year

Property tax

Land + Additions

Assessment*

2026

$5,085

$11,300 + $87,000

$98,300

2025

$5,085 (+0.4%)

$11,300 + $87,000

$98,300

2024

$5,064 (+7.9%)

$11,300 + $87,000

$98,300

2023

$4,693 (+4.1%)

$11,300 + $87,000

$98,300

2022

$4,507 (+7.2%)

$11,300 + $87,000

$98,300

2021

$4,203 (+1.2%)

$11,300 + $87,000

$98,300

2020

$4,151 (−4.6%)

$11,300 + $87,000

$98,300

2019

$4,352 (−12.4%)

$11,300 + $87,000

$98,300

2018

$4,969 (+1.8%)

$11,300 + $87,000

$98,300

2017

$4,879 (+4.6%)

$11,300 + $87,000

$98,300

2016

$4,665 (+18.7%)

$11,300 + $87,000

$98,300

2015

$3,931 (+179.2%)

$11,300 + $87,000

$98,300

2014

$1,408

$11,300 + $87,000

$98,300

Public record

Beds

Baths

Stories

Lot width

—

Lot depth

—

Lot size

0.51 Acres

Year renovated

—

Finished Sq. Ft.

1,474

Unfinished Sq. Ft.

—

Total Sq. Ft.

1,474

Year built

1820

Style

Single Family Residential

County

Greene County

APN

194200A00701600040290000000

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Sep 25, 2026.

Climate risks

1/10 Flood Factor

Minimal risk 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

4/10 Heat Factor

7 days above 98° expected this year, 16 days in 30 years

3/10 Wind Factor

7% chance of strong winds in next 30 years

2/10 Air Factor

0 unhealthy days expected this year, 1 days in 30 years

Provided by First Street

Historical weather

New Baltimore, NY • 12124

Average low and high temperatures (°F)

32°

18°

35°

19°

51°

31°

62°

41°

69°

50°

81°

60°

85°

65°

81°

58°

77°

53°

63°

43°

50°

34°

36°

22°

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Sun exposure

96/ 100

Exceptional sunlight

Sunscore

This home receives average direct sun exposure in New Baltimore. There appears to be minimal shading by surrounding buildings, terrain, and vegetation.

10.2 hrs

5.7 hrs

JuneDecember

Provided by Shadowmap

Redfin Estimate for 21 Union St

$329,999

$1 under list price of $330K

Nearby comparable homes

The Redfin Estimate uses 6 recent nearby sales, priced between $239K to $350K.

SOLD OCT 9, 2026
$340,000 Last sold price
2 beds1.5 baths1,700 sq ft
30-32 Western Ave, Ravena, NY 12143
Listing by Berkshire Hathaway Home Services Blake
$24/sq ft
smaller lot
183 years newer
SOLD SEP 30, 2026
$350,000 Last sold price
4 beds2 baths1,683 sq ft
2 Cary St, Ravena, NY 12143
Listing by eXp Realty
$16/sq ft
smaller lot
157 years newer
SOLD SEP 18, 2026
$300,000 Last sold price
3 beds1 bath1,148 sq ft
25 White Birch Ln, West Coxsackie, NY 12192
Listing by KW Platform
$37/sq ft
smaller lot
145 years newer
SOLD NOV 5, 2026
$238,500 Last sold price
4 beds2 baths1,296 sq ft
2 Mcconnell Ave, Ravena, NY 12143
Listing by Century 21 New West Properties
$40/sq ft
smaller lot
99 years newer
SOLD SEP 15, 2026
$311,000 Last sold price
4 beds2 baths1,667 sq ft
102 Marl Cir, Ravena, NY 12143
Listing by KW Platform
$37/sq ft
smaller lot
153 years newer
SOLD FEB 6, 2026
$299,000 Last sold price
3 beds1.5 baths1,317 sq ft
871 Route 144, New Baltimore, NY 12087
Listing by Carrow Real Estate Services LLC
$3/sq ft
smaller lot
138 years newer

Rental earnings

Est. $2,126 per month, based on comparable rentals

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