Google street view image for 21 Union St, Concord, NH 03301

Off market

—

•

4 ba

•

3,768

sq ft

21 Union St, Concord, NH 03301

About this home

21 Union St is a 3,768 square foot multi-family home on a 9,148 square foot lot with 6 bedrooms and 4 bathrooms.

Multi-familyProperty Type

1895Year Built

9,148 sq ftLot Size

Source:Public Records

Redfin Estimate

There isn’t enough information to generate an accurate estimate at this time. Learn More

Market trends in 03301, NH

Last updated October 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-list price

101.0%

0.1% MoM

Median sale price

$465K

$32K MoM

Avg. days on market

35d

0 days MoM

Recently sold homes

17 MoM

New listings for sale

$280,000
3 beds2 baths1,469 sq ft
12 First St, Concord, NH 03301
3D WALKTHROUGH
$699,900
4 beds2.5 baths3,249 sq ft
6 Merrimack St, Concord, NH 03301
$259,000
2 beds1.5 baths1,120 sq ft
58 Branch Tpke #16, Concord, NH 03301
$689,000
4 beds3.5 baths2,876 sq ft
187 Hoit Rd, Concord, NH 03301
$685,000
3 beds2.5 baths2,356 sq ft
114 N State St, Concord, NH 03301-6424
See all

Provided by Redfin

Sale history for 21 Union St

As the MLS and public records start to fill up, we'll list the details here.

Tax history for 21 Union St

*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.

Zoning

Downtown Residential District

The Downtown Residential RD District is established to incorporate the fully developed neighborhoods of mixed residential uses surrounding the downtowns of Concord and Penacook at densities not exceeding 14 units per acre in areas with full municipal utility services

Permitted uses

Include but are not limited to:

Housing-Single unit
Housing-Multiple units
Housing-Senior
Educational/school

Property details

Interior

Basement Information
Basement Sq. Ft: 1,889

Bathroom Information
# of Full Baths: 4

Heating & Cooling
Heating Type: Steam

Room Information
# of Rooms: 14

Exterior

Exterior Information
Physical Condition: Average
Building Style Type: Multi-Family
Exterior Wall: Vinyl
Roof Shape Type: Gable

Property Information
Living Sq. Ft: 3,768
Gross Sq. Ft: 7,479
Ground Floor Sq. Ft: 1,919
# of Units: 4
# of Stories: 2

Lot Information
# of Buildings: 1
Land Sq. Ft: 9,148
Municipality Name: CONCORD CITY
Acres: 0.21
Zoning Code: RD
State Use Description: APARTMENT BLDG - 4-8 UNITS

Financial

Assessor Information
Assessment Year: 2025

Public facts

Beds: 6
Baths: 4.0
Sq. Ft.: 3,768
Stories: 2.0
Lot Size: 9,148 square feet
Style: Multi-Family (5+ Unit)
Year Built: 1895
Year Renovated: —
County: Merrimack County
APN: 4279056S

Home facts updated by county records on Sep 16, 2026

Around this home

Schools

K - 12
Preschool & daycare

Christa McAuliffe School

Public K-5 • Assigned • 0.4mi

8/10

Rundlett Middle School

Public 6-8 • Assigned • 1.4mi

6/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Climate risks

1/10 Flood Factor

Minimal risk of a flood reaching the building in the next 30 years

2/10 Fire Factor

0.00% chance of being in a wildfire in next 30 years

4/10 Heat Factor

7 days above 94° expected this year, 16 days in 30 years

4/10 Wind Factor

15% chance of strong winds in next 30 years

2/10 Air Factor

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

Provided by First Street

Historical weather

Concord, NH • 03301

Average low and high temperatures (°F)

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Sun exposure

Try the sun simulator tool to see how light moves across the property at different times of day and year.

Provided by Shadowmap

Is this your home?

Track this home’s value and nearby sales activity

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New listings for sale in 03301

$280,000

3 beds2 baths1,469 sq ft

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Hardwood floors • Built-ins • Three-season room

3D WALKTHROUGH

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58 Branch Tpke #16, Concord, NH 03301

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$689,000

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Updated kitchen • Private backyard • Above ground pool

$685,000

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Updated kitchen • New primary bathroom • Improved basement

Home values near 21 Union St

Data from public records.

Address	Redfin Estimate
21 Union St, Concord, NH 6 Beds \| 4 Baths \| 3768 Sq. Ft.	—
26 Union St, Concord, NH 4 Beds \| 2 Baths \| 2632 Sq. Ft.	—
19 Union St, Concord, NH 3 Beds \| 1 Baths \| 1941 Sq. Ft.	$367,520
33 Union St, Concord, NH 7 Beds \| 2 Baths \| 3038 Sq. Ft.	$501,158
26 Union St, Concord, NH 4 Beds \| 2 Baths \| 2632 Sq. Ft.	$461,027
2 Union St Apartment 2, Concord, NH 5 Beds \| 4 Baths \| 4182 Sq. Ft.	—
18 Union St, Concord, NH 9 Beds \| 4 Baths \| 4944 Sq. Ft.	—

Address	Redfin Estimate
22 Union St, Concord, NH 3 Beds \| 2 Baths \| 2934 Sq. Ft.	$447,353
2 Union St Apartment 2, Concord, NH - Beds \| 14 Baths \| 12328 Sq. Ft.	—
24 Union St, Concord, NH 8 Beds \| 4 Baths \| 3940 Sq. Ft.	—
18 Union St, Concord, NH 9 Beds \| 4 Baths \| 4944 Sq. Ft.	—
19 Union St, Concord, NH 4 Beds \| 2 Baths \| 1941 Sq. Ft.	$441,546
2 Union St Apartment 2, Concord, NH 5 Beds \| 5 Baths \| 4684 Sq. Ft.	—
33 Union St, Concord, NH 7 Beds \| 2 Baths \| 3038 Sq. Ft.	$506,140

Address	Redfin Estimate
27 Union St, Concord, NH 5 Beds \| 5 Baths \| 3462 Sq. Ft.	—
2 Union St Apartment 2, Concord, NH 5 Beds \| 4 Baths \| 4182 Sq. Ft.	—
18 Union St, Concord, NH 4 Beds \| 2 Baths \| - Sq. Ft.	$501,396
22 Union St, Concord, NH 3 Beds \| 2 Baths \| 2934 Sq. Ft.	$472,059
27 Union St, Concord, NH 5 Beds \| 5 Baths \| 3462 Sq. Ft.	—
24 Union St, Concord, NH 8 Beds \| 5 Baths \| 3940 Sq. Ft.	—
17 Union St, Concord, NH 5 Beds \| 3.5 Baths \| 1988 Sq. Ft.	$458,761

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