Single Family ResidenceResidential
Last sold for $628,486 on Dec 28, 2006
21 DIAZ DR
TYNGSBORO, MA 01879
4
Beds
3 / 1
Baths
2,918 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.
1.63 ac
Lot SizeThe size of the land the home sits on, from county records.
2006
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
9
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
Valuation
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$628,486 · Dec 28, 2006
Tax & Assessment
Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$12,305 (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.$997,200 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$305,700
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$691,500
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$997,200
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.42
11
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
27
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
57
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
93
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
25
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.7 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
CountyMiddlesex
Lot (acres)The size of the land the home sits on, from county records.1.63
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Forced Air
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
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.
EHM
Tyngsborough Elementary SchoolB-
Elementary · Grades PK–5 · 1.0 mi
Tyngsborough High SchoolA-
High · Grades 9–12 · 4.5 mi
Tyngsborough Middle SchoolB+
Middle · Grades 6–8 · 4.5 mi
District: Tyngsborough School District
Neighborhood · ZIP 01879These 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.50
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 100.83
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.97%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.31%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.7%
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.12,627
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.702 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$138,180
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$151,874
Average tempThe average temperature here across a full year.48°F
Annual precipHow much rain and melted snow falls here in a typical year.45 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.58%
Owner Tools
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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
21 Diaz 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.
- Bigger than 84% of homes in Tyngsboro 01879
- Has a bigger lot than 87% of homes in Middlesex County
- Newer than 92% of homes in Middlesex County
How it measures up in Tyngsboro 01879
The dot is this home. The mark in the middle is the typical home in Tyngsboro 01879.
Living area2,918 ft²
SmallerTypical 1,994 ft²Bigger
Bigger than 84% of homes nearby
Lot size1.63 ac
SmallerTypical 1.01 acBigger
Bigger than 78% of homes nearby
Year built2006
OlderTypical 1985Newer
Newer than 86% of homes nearby
| Measure | This home | Tyngsboro 01879 | Middlesex County |
|---|---|---|---|
| Living areabigger than | 2,918 ft² | 84% of homes | 84% of homes |
| Lot sizebigger than | 1.63 ac | 78% of homes | 87% of homes |
| Year builtnewer than | 2006 | 86% of homes | 92% of homes |
About 21 Diaz Dr
When did 21 Diaz Dr, Tyngsboro, MA last sell?
21 Diaz Dr, Tyngsboro, MA last sold on Dec 28, 2006 for $628,486, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.
How big is 21 Diaz Dr, Tyngsboro, MA?
21 Diaz Dr, Tyngsboro, MA has 4 bedrooms, 3 bathrooms, 2,918 square feet of living space and a 1.63-acre lot.
When was 21 Diaz Dr, Tyngsboro, MA built?
21 Diaz Dr, Tyngsboro, MA was built in 2006, making it 20 years old. It is a colonial home. The building has 2 stories.
What schools serve 21 Diaz Dr, Tyngsboro, MA?
21 Diaz Dr, Tyngsboro, MA is assigned to Tyngsborough Elementary School (elementary), rated B-; Tyngsborough High School (high), rated A-; Tyngsborough Middle School (middle), rated B+. All sit in Tyngsborough School District. Attendance boundaries change — confirm with the district before relying on an assignment.
How does 21 Diaz Dr, Tyngsboro, MA compare to other homes in Tyngsboro 01879?
Among the 4,283 homes in Tyngsboro 01879, it is bigger than 84% of them (2,918 ft² against a typical 1,994 ft²), its lot is bigger than 78% of them (1.63 ac against a typical 1.01 ac) and it is newer than 86% of them (2006 against a typical 1985). These shares are recounted nightly from the full county assessor record for each area, not from active listings.
What are the property taxes on 21 Diaz Dr, Tyngsboro, MA?
The 2025 property tax bill for 21 Diaz Dr, Tyngsboro, MA was $12,305. The county assessed it at $997,200.
More homes on Diaz Dr
- 25 Diaz Dr$888K4 bd · 3 ba · 3,258 ft² · Sold $488K · Nov 2007
- 14 Diaz Dr$930K3 bd · 3 ba · 2,584 ft² · Sold $587K · Oct 2005
- 16 Diaz Dr$858K3 ba · 2,540 ft² · Sold $488K · Dec 2004
- 10 Diaz Dr1.5 ac · Sold Nov 2003
- 4 Diaz Dr1.68 ac · Sold Nov 2003
- 12 Diaz Dr4.14 ac · Sold Nov 2003
- 8 Diaz Dr1.49 ac · Sold Nov 2003
- 17 Diaz Dr2.33 ac · Sold Nov 2003
- 7 Diaz Dr1.79 ac · Sold Nov 2003
- 9 Diaz Dr2 ac · Sold Nov 2003
- 15 Diaz Dr2.33 ac · Sold Nov 2003
- 6 Diaz Dr1.49 ac · Sold Nov 2003
Closest homes
- 1 Rello Way$831K197 ft · 4 bd · 3 ba · 2,312 ft² · Sold $558K · Dec 2005
- 17 Diaz Dr266 ft · 2.33 ac · Sold Nov 2003
- 3 Rello Way$931K344 ft · 4 bd · 3 ba · 2,844 ft² · Sold $611K · May 2006
- 15 Diaz Dr457 ft · 2.33 ac · Sold Nov 2003
- 14 Diaz Dr$930K397 ft · 3 bd · 3 ba · 2,584 ft² · Sold $587K · Oct 2005
- 13 Diaz Dr0.1 mi · 1.74 ac · Sold Nov 2003
- 5 Rello Way$1.2M0.1 mi · 3 bd · 2.5 ba · 4,042 ft² · Sold Jun 2013
- 4 Rello Way$1M0.1 mi · 3 bd · 4 ba · 3,823 ft² · Sold $525K · Sep 2005
More homes in Tyngsboro 01879
- 1 Daisy Ln$950K4 bd · 2.5 ba · 2,665 ft² · Sold $952K · Aug 2026
- 66 Windemere Cir$420K2 bd · 2.5 ba · 2,181 ft² · Sold $237K · Aug 2026
- 49 Riley Rd$480K2 bd · 1.5 ba · 1,312 ft² · Sold $483K · Aug 2026
- 12 Village Ln$298K2 bd · 1 ba · 915 ft² · Sold $320K · Aug 2026
- 66 Long Pond Rd$589K3 bd · 1.5 ba · 1,700 ft² · Sold $638K · Aug 2026
- 4 Bowers Ave$500K3 bd · 2 ba · 1,482 ft² · Sold $500K · Aug 2026
- 198 Frost Rd$518K2 bd · 2.5 ba · 1,956 ft² · Sold $262K · Aug 2026
- 46 Middlesex Rd$550K3 bd · 2 ba · 1,152 ft² · Sold $550K · Aug 2026
- 46 Pawtucket Blvd$365K2 bd · 1.5 ba · 1,116 ft² · Sold $365K · Aug 2026
- 27 Riley Rd$547K3 bd · 2.5 ba · 1,573 ft² · Sold $581K · Aug 2026
- 5 Farmers Way$1.6M3 bd · 2.5 ba · 2,616 ft² · Sold $1.6M · Aug 2026
- 15 Hillcrest Dr$850K4 bd · 2.5 ba · 2,904 ft² · Sold $850K · Aug 2026
Assigned schools
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