Off market dec 1997 for $185K

$942,537

Est. refi paymentEst. refi $1,419/mo

•

—

sq ft

9-11 Castle St, Waltham, MA

About this home

Multi-familyProperty Type

1881Year Built

5,000 sq ftLot Size

Listed by Angie Coppola Doucette • Dewolfe-Waltham

Bought with • Century 21 West Realty, Inc.

Redfin checked: a minute ago

•Source:MLS PIN #50382111

Redfin Estimate

$942,537

$758K since sold in December 1997$14K since October

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 1.4% higher than the average sale price ($929K) of 6 comparable homes.

SOLD SEP 4, 2026
$900,000
A
5 beds2 baths2,929 sq ft
32-34 Dartmouth St, Waltham, MA 02453
SOLD JUL 2, 2026
$950,000
B
5 beds2 baths2,796 sq ft
55-57 Bedford St, Waltham, MA 02453
SOLD JUL 31, 2026
$1,068,000
C
5 beds2 baths2,536 sq ft
68 Adams St, Waltham, MA 02453
SOLD AUG 31, 2026
$723,000
D
4 beds2 baths1,932 sq ft
268 Newton St, Waltham, MA 02453
SOLD JUN 25, 2026
$895,000
E
4 beds1.5 baths2,384 sq ft
132 Dale St, Waltham, MA 02451
SOLD SEP 22, 2026
$1,039,000
F
4 beds2 baths2,288 sq ft
10-12 Auburn St, Waltham, MA 02453

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Earn from this home

Sell

$884,825

Est. take-home

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Est. cash available

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Market trends in 02451, MA

Last updated October 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-list price

98.6%

1.4% MoM

Median sale price

$755K

$100K MoM

Avg. days on market

24d

3 days MoM

Recently sold homes

2 MoM

New listings for sale

OPEN SAT, 12PM TO 1:30PM
$759,900
2 beds1 bath2,202 sq ft
42 Prentice St, Waltham, MA 02451
OPEN SAT, 12PM TO 2PM
$675,000
2 beds2 baths1,322 sq ft
113 Hillcrest Rd, Waltham, MA 02451
$899,000
3 beds2 baths2,652 sq ft
105 Princeton Ave, Waltham, MA 02451
OPEN SAT, 11AM TO 12:30PM
$1,499,000
4 beds4 baths3,623 sq ft
1382 Trapelo Rd, Waltham, MA 02451

Provided by Redfin

Sale history for 9-11 Castle St

Year

Property tax

Land + Additions

Assessment*

2026

$8,896 (+2.1%)

$371,000 + $491,000

$862,000

2025

$8,711 (+9.0%)

$338,100 + $549,000

$887,100

2024

$7,994 (+7.9%)

$336,000 + $493,300

$829,300

2023

$7,408 (−1.2%)

$322,000 + $395,800

$717,800

2022

$7,495 (+11.1%)

$294,000 + $378,800

$672,800

2021

$6,748 (+4.1%)

$238,000 + $358,100

$596,100

2020

$6,485 (+7.2%)

$210,000 + $332,700

$542,700

2019

$6,051 (+11.0%)

$207,900 + $270,100

$478,000

2018

$5,449 (+4.6%)

$192,500 + $239,600

$432,100

2017

$5,207 (+2.6%)

$175,000 + $239,600

$414,600

2016

$5,075 (+8.9%)

$175,000 + $239,600

$414,600

2015

$4,660 (+1.8%)

$157,500 + $197,400

$354,900

2014

$4,578 (−2.3%)

$143,500 + $197,400

$340,900

2013

$4,685 (+1.1%)

$133,000 + $214,300

$347,300

2012

$4,636 (+2.0%)

$133,000 + $214,300

$347,300

2011

$4,546 (−5.9%)

$133,000 + $214,300

$347,300

2010

$4,830 (+0.9%)

$154,000 + $231,200

$385,200

2009

$4,787

$176,700 + $246,900

$423,600

Tax history for 9-11 Castle St

Year

Property tax

Land + Additions

Assessment*

2026

$8,896 (+2.1%)

$371,000 + $491,000

$862,000

2025

$8,711 (+9.0%)

$338,100 + $549,000

$887,100

2024

$7,994 (+7.9%)

$336,000 + $493,300

$829,300

2023

$7,408 (−1.2%)

$322,000 + $395,800

$717,800

2022

$7,495 (+11.1%)

$294,000 + $378,800

$672,800

2021

$6,748 (+4.1%)

$238,000 + $358,100

$596,100

2020

$6,485 (+7.2%)

$210,000 + $332,700

$542,700

2019

$6,051 (+11.0%)

$207,900 + $270,100

$478,000

2018

$5,449 (+4.6%)

$192,500 + $239,600

$432,100

2017

$5,207 (+2.6%)

$175,000 + $239,600

$414,600

2016

$5,075 (+8.9%)

$175,000 + $239,600

$414,600

2015

$4,660 (+1.8%)

$157,500 + $197,400

$354,900

2014

$4,578 (−2.3%)

$143,500 + $197,400

$340,900

2013

$4,685 (+1.1%)

$133,000 + $214,300

$347,300

2012

$4,636 (+2.0%)

$133,000 + $214,300

$347,300

2011

$4,546 (−5.9%)

$133,000 + $214,300

$347,300

2010

$4,830 (+0.9%)

$154,000 + $231,200

$385,200

2009

$4,787

$176,700 + $246,900

$423,600

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

Public record

Beds

Baths

Stories

Lot width

—

Lot depth

—

Lot size

4,792 Sq. Ft.

Year renovated

—

Sq. Ft.

2,406

Year built

1880

Style

Multi-Family (2-4 Unit)

County

Middlesex County

APN

1784384S

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Sep 16, 2026.

Property details

Parking

Parking Information
Parking Features: Off Street

Interior

Bathroom Information
# of Bathrooms (Full): 2

Basement Information
Basement: Full, Sump Pump

Interior Features
# of Rooms (Total): 10

Exterior

Building Information
Foundation Details: Stone

Exterior Features
Fencing: Fenced
Roof: Shingle
Patio And Porch Features: Porch

Property Information
PropertySubType: Multi Family

Lot Information
Lot Size (Acres): 0.11
Lot Features: Easements

Financial

Tax Information
Tax Annual Amount: $1,693
Tax Year: 0

Utilities

Utility Information
Sewer: Public Sewer, City/Town Sewer
Water Source: Public, City/Town Water

Heating & Cooling
Has Heating
Heating: Baseboard, Natural Gas
Heating Units: 0
Cooling Units: 0

Location

Location Information
Directions: POND ST
UnparsedAddress: 9-11 Castle St, Waltham MA

Community Information
Senior CommunityYN: No
Community Features: Public Transportation, Shopping

Public facts

Beds: 4
Baths: 2.0
Sq. Ft.: 2,406
Stories: 3.0
Lot Size: 4,792 square feet
Style: Multi-Family (2-4 Unit)
Year Built: 1880
Year Renovated: —
County: Middlesex County
APN: 1784384S

Home facts updated by county records on Sep 16, 2026

Other

Miscellaneous Information
Heat Zones: 2

Listing Information
StandardStatus: Closed

Around this home

Schools

K - 12
Preschool & daycare

Thomas R Plympton Elementary School

Public K-5 • Assigned • 0.2mi

5/10

John F Kennedy Middle School

Public 6-8 • Assigned • 1.2mi

8/10

Waltham Senior High School

Public 9-12 • Assigned • 1.1mi

4/10

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

1/10 Fire Factor

Unlikely to be in a wildfire in next 30 years

6/10 Heat Factor

7 days above 97° expected this year, 15 days in 30 years

6/10 Wind Factor

50% chance of strong winds in next 30 years

3/10 Air Factor

2 unhealthy days expected this year, 3 days in 30 years

Provided by First Street

Historical weather

Waltham, MA • undefined

Average low and high temperatures (°F)

34°

20°

36°

20°

51°

32°

60°

40°

69°

51°

81°

61°

86°

66°

81°

60°

76°

56°

63°

46°

53°

36°

39°

25°

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Sun exposure

In this area, properties receive around 9 hours in June and 4.4 hours in December, placing it below the U.S. average for solar exposure.

9 hrs

4.4 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$896,000 – $1.08M

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OPEN SUN, 12PM TO 1:30PM

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6 beds2.5 baths2,332 sq ft

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2 family home • Great location • Brandeis university

New listings for sale in 02451

OPEN SAT, 12PM TO 1:30PM

$759,900

2 beds1 bath2,202 sq ft

42 Prentice St, Waltham, MA 02451

Updated kitchen • Quartz countertops • Formal dining room

OPEN SAT, 12PM TO 2PM

$675,000

2 beds2 baths1,322 sq ft

113 Hillcrest Rd, Waltham, MA 02451

One level living • Open floor plan • Hardwood flooring

$899,000

3 beds2 baths2,652 sq ft

105 Princeton Ave, Waltham, MA 02451

Double lot • Marble fireplace • Private yard

OPEN SAT, 11AM TO 12:30PM

$1,499,000

4 beds4 baths3,623 sq ft

1382 Trapelo Rd, Waltham, MA 02451

Impressive kitchen • Exposed wood beams • 6,251 sq ft lot

Home values near 9-11 Castle St

Data from public records.

Address	Redfin Estimate
7 Castle Street Unit 1, Waltham, MA 8 Beds \| 4 Baths \| 4314 Sq. Ft.	—
15 Castle Street, Waltham, MA 2 Beds \| 1 Baths \| 1795 Sq. Ft.	$647,832
6 Emery Street, Waltham, MA 2 Beds \| 2 Baths \| 1853 Sq. Ft.	$782,591
119 Pond Street Unit 115, Waltham, MA 7 Beds \| 6 Baths \| 4110 Sq. Ft.	—
85 Pond Street, Waltham, MA 8 Beds \| 4 Baths \| 3942 Sq. Ft.	—
90 Pond Street, Waltham, MA 6 Beds \| 3 Baths \| 2574 Sq. Ft.	$1,056,757
20 Emery Street, Waltham, MA 4 Beds \| 4 Baths \| 3480 Sq. Ft.	—

Address	Redfin Estimate
8 Castle Street Unit 2, Waltham, MA 10 Beds \| 4 Baths \| 4368 Sq. Ft.	—
15 Castle Street, Waltham, MA 2 Beds \| 1 Baths \| 1843 Sq. Ft.	$634,491
2 Emery Street, Waltham, MA 4 Beds \| 2 Baths \| 2200 Sq. Ft.	$966,971
9 Pond Street Court, Waltham, MA 6 Beds \| 2 Baths \| 2317 Sq. Ft.	$843,110
89 Pond Street, Waltham, MA 3 Beds \| 2 Baths \| 1810 Sq. Ft.	$728,065
88 Pond Street, Waltham, MA 3 Beds \| 1 Baths \| 1288 Sq. Ft.	$646,736
20 Emery Street, Waltham, MA 4 Beds \| 4 Baths \| 3480 Sq. Ft.	—

Address	Redfin Estimate
13 Castle Street, Waltham, MA 3 Beds \| 1 Baths \| 1197 Sq. Ft.	$625,845
14 Emery Street Unit 20, Waltham, MA 4 Beds \| 4 Baths \| 5220 Sq. Ft.	—
109 Pond Street Unit 107, Waltham, MA 6 Beds \| 3 Baths \| 2768 Sq. Ft.	$1,087,317
8 Pond Street Court, Waltham, MA 3 Beds \| 2.5 Baths \| 1750 Sq. Ft.	$920,436
95 Pond Street Unit 93, Waltham, MA 6 Beds \| 3 Baths \| 2313 Sq. Ft.	$1,011,760
84 Pond Street, Waltham, MA 4 Beds \| 2 Baths \| 2127 Sq. Ft.	$747,116
22 Emery Street, Waltham, MA - Beds \| 7.5 Baths \| 3429 Sq. Ft.	$1,250,547

Property information provided by MLS PIN when last listed in 1997. This data may not match . Learn more.

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GreatSchools Ratings provided by GreatSchools.org.

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About this home

Redfin Estimate

Earn from this home

Market trends in 02451, MA

Sale history for 9-11 Castle St

Tax history for 9-11 Castle St

Public record

Property details

Around this home

Schools

Lifestyle

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 02451

Home values near 9-11 Castle St

More real estate resources