Residential Income (General/Multi-Family)Residential
Last sold for $860,000 on Feb 9, 2021
20 CLAM SHELL DR
CHATHAM, MA 02633
0
Baths
0.19 ac
Lot SizeThe size of the land the home sits on, from county records.
Valuation
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$860,000 · Feb 9, 2021
Tax & Assessment
Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,174 (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.$1,202,900 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$838,800
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$364,100
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$1,424,620
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.45 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.94%
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.1 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.Residential Income (General/Multi-Family)
CountyBARNSTABLE
Lot (acres)The size of the land the home sits on, from county records.0.18
CoolingThe type of cooling or air conditioning in the home.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No
Transaction History(4)
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.
EMH
Chatham Elementary SchoolA
Elementary · Grades PK–4 · 1.4 mi
Monomoy Regional Middle SchoolB+
Middle · Grades 5–7 · 2.1 mi
Monomoy Regional High SchoolC
High · Grades 8–12 · 6.0 mi
District: Monomoy Regional School District
Neighborhood · ZIP 02633These 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.118
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.94
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.43
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.50%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.34%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.5%
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.4,131
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.248 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$106,531
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$156,535
Average tempThe average temperature here across a full year.50°F
Annual precipHow much rain and melted snow falls here in a typical year.47 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 homeData 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 Clam Shell Dr 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.
- Has a smaller lot than 95% of homes in Chatham 02633
How it measures up in Chatham 02633
The dot is this home. The mark in the middle is the typical home in Chatham 02633.
Lot size0.19 ac
SmallerTypical 0.47 acBigger
Bigger than 5% of homes nearby
| Measure | This home | Chatham 02633 | Barnstable County |
|---|---|---|---|
| Lot sizebigger than | 0.19 ac | 5% of homes | 10% of homes |
About 20 Clam Shell Dr
When did 20 Clam Shell Dr, Chatham, MA last sell?
20 Clam Shell Dr, Chatham, MA last sold on Feb 9, 2021 for $860,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.
What schools serve 20 Clam Shell Dr, Chatham, MA?
20 Clam Shell Dr, Chatham, MA is assigned to Chatham Elementary School (elementary), rated A; Monomoy Regional Middle School (middle), rated B+; Monomoy Regional High School (high), rated C. All sit in Monomoy Regional School District. Attendance boundaries change — confirm with the district before relying on an assignment.
What are the property taxes on 20 Clam Shell Dr, Chatham, MA?
The 2025 property tax bill for 20 Clam Shell Dr, Chatham, MA was $4,174. The county assessed it at $1,202,900.
More homes on Clam Shell Dr
Closest homes
- 165 Morris Island Rd$1M78 ft · 2 bd · 2 ba · 848 ft² · Sold $540K · Jun 2017
- 171 Morris Island Rd77 ft · 3 bd · 3 ba · 1,777 ft² · Sold $825K · Mar 2020
- 32 Clam Shell Dr$954K88 ft · 2 bd · 2 ba · 825 ft² · Sold Jun 2013
- 27 Clam Shell Dr$1.1M129 ft · 3 bd · 2 ba · 1,303 ft² · Sold $888K · Sep 2022
- 14 Seagull Rd$1M161 ft · 0.5 ac · Sold Jan 1900
- 181 Morris Island Rd$1.8M143 ft · 3 bd · 2.5 ba · 1,525 ft² · Sold $1.7M · May 2022
- 32 Little Beach Rd162 ft · 5 bd · 3.5 ba · 1,741 ft² · Sold $1.8M · Mar 2024
- 8 Scallop Ter$1.1M206 ft · 2 bd · 2.5 ba · 1,284 ft² · Sold $135K · Jan 1999
More homes in Chatham 02633
- 330 Champlain Rd$2.4M4 bd · 3 ba · 2,520 ft² · Sold $2.4M · Aug 2026
- 87 Squanto Dr$3.3M3 bd · 3.5 ba · 2,694 ft² · Sold $3.3M · Aug 2026
- 59 Cedar St$1.9M3 bd · 2 ba · 2,133 ft² · Sold $525K · Aug 2026
- 7 Aunt Matties Rd$729K2 bd · 2 ba · 1,563 ft² · Sold $729K · Aug 2026
- 213 Main St$1.8M4 bd · 2.5 ba · 1,238 ft² · Sold $1.8M · Jul 2026
- 367 Deer Meadow Ln$1.5M3 bd · 2.5 ba · 2,264 ft² · Sold $1.5M · Jul 2026
- 58 Stepping Stones Rd$1.3M2 bd · 2.5 ba · 1,418 ft² · Sold $1.3M · Jul 2026
- 99 Shane Dr$1.1M2 bd · 1.5 ba · 1,104 ft² · Sold $1.1M · Jul 2026
- 127 Perch Pond Dr$943K4 bd · 2 ba · 1,873 ft² · Sold $938K · Jul 2026
- 7 Squanto Dr$3M3 bd · 3.5 ba · 2,156 ft² · Sold $2.9M · Jul 2026
- 66 Indian Trl$699K3 bd · 3 ba · 3,118 ft² · Sold $695K · Jul 2026
- 33 Jeanette Rd$1M3 bd · 2 ba · 1,248 ft² · Sold $1M · Jul 2026
Assigned schools
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