Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$2,025,611$639 / 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 81How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Sep 24, 2026
Last sold for $1,000,000 on Nov 1, 2006

20 BOULDER AVE

CHARLESTOWN, RI 02813
4
Beds
3.5
Baths
3,172 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.
0.63 ac
Lot SizeThe size of the land the home sits on, from county records.
2010
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
7
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$2M
$1.6M low$2.4M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$1,000,000 · Nov 1, 2006

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$11,177 (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.$1,884,900 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$1,279,600
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$605,300

Climate Risk

Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.14
57
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
13
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.24 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.72%
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.0.2 percent flood zone

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.Ranch
CountyWASHINGTON
Lot (acres)The size of the land the home sits on, from county records.0.63
ConstructionThe main material the home's frame and walls are built from.Concrete
RoofThe main material covering the roof, such as asphalt shingle or tile.Wood Shingle
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
CoolingThe type of cooling or air conditioning in the home.Yes
FireplaceWhether the home has a fireplace, and what kind.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck

Transaction History(5)

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.

M
Chariho Regional Middle SchoolB
Middle · Grades 5–8 · 7.6 mi
H
Chariho High SchoolA+
High · Grades 9–12 · 7.7 mi
E
Charlestown Elementary SchoolA
Elementary · Grades KG–4 · 8.2 mi

District: Chariho Regional School District

Neighborhood · ZIP 02813These 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.89
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.103
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.52

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.67%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.25%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.0%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.1%
PopulationHow many people live in this area.8,123
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.190 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$104,379
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$130,389
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%

Owner Tools

Do you own this home?
Claim this home

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

20 Boulder Ave 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 more than 96% of homes in Washington County
  • Costs more per square foot than 83% of homes in Washington County
  • Bigger than 95% of homes in Charlestown 02813
  • Newer than 92% of homes in Washington County

What homes are worth in Charlestown 02813

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

This home
$282K$3.5M

This home is worth more than 92% of homes in Charlestown 02813.

How it measures up in Charlestown 02813

The dot is this home. The mark in the middle is the typical home in Charlestown 02813.

Estimated value$2,025,611
CheaperTypical $743,939Pricier

Pricier than 92% of homes nearby

Price per ft²$639
CheaperTypical $461Pricier

Pricier than 72% of homes nearby

Living area3,172 ft²
SmallerTypical 1,537 ft²Bigger

Bigger than 95% of homes nearby

Lot size0.63 ac
SmallerTypical 0.91 acBigger

Bigger than 40% of homes nearby

Year built2010
OlderTypical 1984Newer

Newer than 91% of homes nearby

How 20 Boulder Ave ranks against every home in each area.
MeasureThis homeCharlestown 02813Washington County
Estimated valuepricier than$2,025,61192% of homes96% of homes
Price per ft²pricier than$63972% of homes83% of homes
Living areabigger than3,172 ft²95% of homes94% of homes
Lot sizebigger than0.63 ac40% of homes59% of homes
Year builtnewer than201091% of homes92% of homes

About 20 Boulder Ave

How much is 20 Boulder Ave, Charlestown, RI worth?

The TopHap Estimate for 20 Boulder Ave, Charlestown, RI is $2,025,611 as of Sep 24, 2026. The likely range is $1,631,680 to $2,419,542. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 20 Boulder Ave, Charlestown, RI last sell?

20 Boulder Ave, Charlestown, RI last sold on Nov 1, 2006 for $1,000,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 20 Boulder Ave, Charlestown, RI?

20 Boulder Ave, Charlestown, RI has 4 bedrooms, 3.5 bathrooms, 3,172 square feet of living space and a 0.63-acre lot.

When was 20 Boulder Ave, Charlestown, RI built?

20 Boulder Ave, Charlestown, RI was built in 2010, making it 16 years old. It is a ranch home. The building has 1 story.

What schools serve 20 Boulder Ave, Charlestown, RI?

20 Boulder Ave, Charlestown, RI is assigned to Chariho Regional Middle School (middle), rated B; Chariho High School (high), rated A+; Charlestown Elementary School (elementary), rated A. All sit in Chariho Regional School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 20 Boulder Ave, Charlestown, RI compare to other homes in Charlestown 02813?

Among the 5,227 homes in Charlestown 02813, it is worth more than 92% of them ($2,025,611 against a typical $743,939), its price per square foot is higher than 72% of them ($639 against a typical $461), it is bigger than 95% of them (3,172 ft² against a typical 1,537 ft²), its lot is bigger than 40% of them (0.63 ac against a typical 0.91 ac) and it is newer than 91% of them (2010 against a typical 1984). Measured against all of Washington County, it is worth more than 96% 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 20 Boulder Ave, Charlestown, RI?

The 2025 property tax bill for 20 Boulder Ave, Charlestown, RI was $11,177. The county assessed it at $1,884,900.

More homes on Boulder Ave

Closest homes

More homes in Charlestown 02813

Assigned schools

Explore the area

See this home in context

Open 20 Boulder Ave on TopHap’s interactive map to compare it against every sale nearby, overlay school zones and flood risk, and run a CMA.

Open in map
A flyover of TopHap's photorealistic 3D map, with recorded sale prices pinned to homes
Search any address, city, zip, or county…3D$1.9M$6.25MOpen in map