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Single Family ResidenceResidential
$582,133$509 / ft²
TopHap EstimateOur estimate of what this home would sell for today, based on nearby sales, the home's size and features, and local price trends. It is a starting point, not an appraisal.· confidence 94How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Jul 14, 2026

100 ROCKDALE ST

MATTAPAN, MA 02126
4
Beds
1
Baths
1,144 ft²
Living AreaTotal finished area of the structures, from county records. Some counties include shared space like hallways or a building gym, so it may not match a listing.
3,224 ft²
Lot SizeThe size of the land the home sits on, from county records.
1910
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
8
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$582K
$547K low$618K high
Est. Owner EquityRoughly how much of the home's value the owner would keep after paying off known loans. It is our estimate minus the loans still owed.$416,133
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$332,906
Loan-to-ValueHow much is still owed on the home compared to what it is worth. 80% means loans equal 80% of our estimate, so it shifts when the estimate does.31%
1st MortgageA loan still believed to be open on this home, in the order lenders get repaid. The first position is paid back before the second.$166,000
WELLSFARGOBANKNA · 5.98% · recorded Apr 13, 2026

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,062 (2025)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$523,500 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$179,800
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$343,700
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$512,240

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.13 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.6%
FEMA Flood ZoneFEMA's flood zone for this address. Zones starting with A or V are high risk, and lenders usually require flood insurance there.minimal

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
StyleThe architectural style of the home, such as ranch or colonial.Colonial
CountySUFFOLK
Lot (acres)The size of the land the home sits on, from county records.0.07
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Hot Water
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(6)

Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

E
James J Chittick Elementary SchoolC-
Elementary · Grades PK–5 · 0.3 mi
M
Mildred Avenue K-8 SchoolD+
Middle · Grades KG–8 · 0.8 mi
H
Another Course To CollegeF
High · Grades 9–12 · 1.0 mi

District: Boston School District

Neighborhood · ZIP 02126These are comparison scores, not percentages. 100 equals the national average, so 150 means about 50% above average.

CrimeLocal crime compared with the rest of the country, where 100 is average. It reflects things like population density, income, and how crime gets reported.84
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.100
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.75

Index scale: 100 = US average (tick). Lower is better.

Homes occupiedThe share of homes here that someone lives in. The rest sit empty, including vacation and for-sale homes.94%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.16%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.18%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.2%
PopulationHow many people live in this area.22,143
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.12,185 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$74,782
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$107,132
Average tempThe average temperature here across a full year.50°F
Annual precipHow much rain and melted snow falls here in a typical year.48 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.58%

Ownership

OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Owner occupied
Company ownedWhether the owner is a company or trust rather than a person.No

Data by ATTOM. Valuations are automated estimates, not appraisals. Photos from Google Street View and may not depict the current property state.

How this home compares

100 Rockdale St measured against every home in its neighborhood, its ZIP code and its county, using county assessor records refreshed nightly. A home can stand out in one of those areas and look ordinary in another, because each one holds a different mix of homes.

  • Worth less than 71% of homes in Suffolk County
  • Costs more per square foot than 91% of homes in Mattapan 02126
  • Smaller than 86% of homes in Mattapan 02126
  • Has a smaller lot than 89% of homes in Mattapan 02126
  • Older than 72% of homes in Mattapan 02126

What homes are worth in Mattapan 02126

Each bar is how many homes fall in that price range. The marker is this home.

This home
$298K$810K

This home is worth more than 60% of homes in Mattapan 02126.

How it measures up in Mattapan 02126

The dot is this home. The mark in the middle is the typical home in Mattapan 02126.

Estimated value$582,133
CheaperTypical $559,999Pricier

Pricier than 60% of homes nearby

Price per ft²$509
CheaperTypical $406Pricier

Pricier than 91% of homes nearby

Living area1,144 ft²
SmallerTypical 1,926 ft²Bigger

Bigger than 14% of homes nearby

Lot size3,224 ft²
SmallerTypical 0.11 acBigger

Bigger than 11% of homes nearby

Year built1910
OlderTypical 1929Newer

Newer than 28% of homes nearby

How 100 Rockdale St ranks against every home in each area.
MeasureThis homeMattapanMattapan 02126Suffolk County
Estimated valuepricier than$582,13355% of homes60% of homes29% of homes
Price per ft²pricier than$50984% of homes91% of homes32% of homes
Living areabigger than1,144 ft²15% of homes14% of homes35% of homes
Lot sizebigger than3,224 ft²15% of homes11% of homes56% of homes
Year builtnewer than191031% of homes28% of homes45% of homes

About 100 Rockdale St

How much is 100 Rockdale St, Mattapan, MA worth?

The TopHap Estimate for 100 Rockdale St, Mattapan, MA is $582,133 as of Jul 14, 2026. The likely range is $546,514 to $617,752. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 100 Rockdale St, Mattapan, MA last sell?

100 Rockdale St, Mattapan, MA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 100 Rockdale St, Mattapan, MA?

100 Rockdale St, Mattapan, MA has 4 bedrooms, 1 bathrooms, 1,144 square feet of living space and a 0.07-acre lot.

When was 100 Rockdale St, Mattapan, MA built?

100 Rockdale St, Mattapan, MA was built in 1910, making it 116 years old. It is a colonial home. The building has 2 stories.

What schools serve 100 Rockdale St, Mattapan, MA?

100 Rockdale St, Mattapan, MA is assigned to James J Chittick Elementary School (elementary), rated C-; Mildred Avenue K-8 School (middle), rated D+; Another Course To College (high), rated F. All sit in Boston School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 100 Rockdale St, Mattapan, MA compare to other homes in Mattapan 02126?

Among the 3,890 homes in Mattapan 02126, it is worth more than 60% of them ($582,133 against a typical $559,999), its price per square foot is higher than 91% of them ($509 against a typical $406), it is bigger than 14% of them (1,144 ft² against a typical 1,926 ft²), its lot is bigger than 11% of them (3,224 ft² against a typical 0.11 ac) and it is newer than 28% of them (1910 against a typical 1929). Measured against all of Suffolk County, it is worth more than 29% of homes there. These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 100 Rockdale St, Mattapan, MA?

The 2025 property tax bill for 100 Rockdale St, Mattapan, MA was $6,062. The county assessed it at $523,500.

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