CondominiumResidential
100 Keyes Rd
CONCORD, MA 01742
4.42 ac
Lot SizeThe size of the land the home sits on, from county records.
1952
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
Built 19524 floors56 units772–1,863 ft²
$45M
All units combinedThe sum of our current value estimates for every unit in the building — roughly what the whole building's homes are worth together.
$830K
Median unit valueThe middle unit value in this building by our estimate: half the units are worth more, half less.
$675
Median $/ft²The middle price per square foot across the building's units, by our current estimates. Useful for comparing units of different sizes.
+33.1%vs the Concord ZIP median sale $/ft² ($507)
Sales Performance
$1.3M
Median sale (12 mo)The middle sale price among this building's units that sold in the last 12 months, from recorded deeds.
+56.3%
1-yr changeHow the building's median sale price over the last 12 months compares with the 12 months before that.
1
Sales (12 mo)Units in this building that sold in the last 12 months, from recorded arms-length deeds.
1.8%
Turnover (12 mo)The share of units that changed hands in the last 12 months. Around 4–6% a year is typical; much higher can signal investor churn or a wave of exits.
This building's own appreciationThe building's own appreciation: for every unit that sold twice (held over a year), we compute its yearly price change between the two sales and take the middle value. This is the cleanest read on how this specific building performs, because it compares each unit to itself.
+3.6%per yeartypical hold 6.5 yrsfrom 93 same-unit resales
Median sale price (yearly, all time)Every recorded arms-length sale in the building since records begin, grouped by year: the bars count sales and the line tracks the median price paid.MedianSales
19871992199720032007201320202025
Sale price per ft² (yearly, all time)The middle price per square foot across the building's units, by our current estimates. Useful for comparing units of different sizes.$/ft²
19871992199720032007201320202025
153 arms-length sales on record for this building.
Unit Mix & Floor PlansThe building's recurring floor plans, found by grouping units with identical beds, baths and square footage in county records. Larger groups are the building's standard layouts; leftover units have one-off sizes.
Every unit: size vs estimated valueEvery unit in the building as one dot: across is its size, up is our current value estimate, and color is its bedroom count. Vertical columns of dots are recurring floor plans; the height spread within a column shows how much floor, view and condition move prices for the same layout.
1 bd2 bd3 bd
1 bed
21 units$638K · $688/ft²
2 bed
32 units$883K · $667/ft²
3 bed
3 units$1M · $653/ft²
Recurring floor plansThe building's recurring floor plans, found by grouping units with identical beds, baths and square footage in county records. Larger groups are the building's standard layouts; leftover units have one-off sizes.
2 bd · 2 ba · 1,271 ft²
2 units$869K · $683/ft²
One-off layouts
54 units
Value DistributionHow the building's units spread across value ranges by our current estimates. A wide spread usually means big differences in size, floor or view.
$532K–$657K
13 units
$664K–$787K
13 units
$804K–$916K
16 units
$925K–$1M
10 units
$1.1M–$1.1M
2 units
$1.6M–$1.6M
1 unit
Value by Floor & LineAverage estimated price per square foot by floor range, using unit numbers to infer floors. Higher floors usually price higher — the gap shows how much the view is worth here.
Floor 1
$676/ft²8 units · +0%
Floor 2
$685/ft²22 units · +2%
Floor 3
$687/ft²18 units · +2%
Floor 4
$662/ft²7 units · -2%
Unit lines by $/ft²Condo units stacked vertically share a unit line — the last digits of the unit number (like 05 in 1205, 1305, 1405). Lines share a layout and exposure, so comparing estimated $/ft² by line shows which position in the building commands a premium.
Line ·09
$759/ft²3 units · +12%
Line ·10
$753/ft²3 units · +12%
Line ·08
$713/ft²3 units · +6%
Line ·06
$710/ft²3 units · +5%
Line ·22
$707/ft²3 units · +5%
Line ·13
$696/ft²3 units · +3%
Line ·31
$695/ft²3 units · +3%
Line ·07
$688/ft²3 units · +2%
Line ·04
$685/ft²3 units · +2%
Line ·23
$684/ft²3 units · +1%
Line ·15
$680/ft²3 units · +1%
Line ·24
$674/ft²3 units · +0%
Ownership & Financing
Owner-occupiedThe share of units where the owner lives in the unit, per county records. The rest are second homes or rentals.73%
Company-ownedUnits owned through an LLC, trust, or other company — a rough proxy for investor ownership.30%
Typical owner tenureThe middle number of years since each unit last changed hands — how long the current owners have been in place.6.4 yrs
Cash purchases (5 yrs)The share of purchases in the last 5 years with no mortgage recorded. High cash share is common in second-home and investor buildings.67%
Avg. loan-to-valueAverage current loan balance against unit value across the building. Low numbers mean owners hold lots of equity — a sign of financial stability.18%
Median owner equityThe middle dollar amount of equity (value minus loans) unit owners hold in this building.$894,279
Median tax billThe middle annual property tax bill among the building's units.$7,979
Pre-foreclosure noticesUnits with an active pre-foreclosure or foreclosure notice on file.0
Recent SalesThe latest recorded arms-length sales in the building, newest first.
Unit 216Dec 30, 2025$1,325,216$775/ft²Unit 223Sep 18, 2025$951,000$732/ft²Unit 305Jun 30, 2025$835,000$566/ft²Unit 310Jun 26, 2025$1,010,000$815/ft²Unit 205May 15, 2025$851,000$561/ft²Unit 211Jan 10, 2025$665,000$580/ft²Unit 311Nov 27, 2024$585,000$570/ft²Unit 209Nov 26, 2024$1,400,000$887/ft²Unit 218Nov 25, 2024$845,000$502/ft²Unit 305May 22, 2024$820,000$556/ft²
Values are TopHap estimates, not appraisals. Sales, ownership and tax figures come from recorded county documents via ATTOM and can lag by several weeks.
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.87 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.51%
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.Condominium
StyleThe architectural style of the home, such as ranch or colonial.Condo/Apartment
CountyMIDDLESEX
Effective Year BuiltAn adjusted build year that accounts for condition and major remodels. A big renovation can make a home count as newer than it is.1955
Lot (acres)The size of the land the home sits on, from county records.4.42
RoofThe main material covering the roof, such as asphalt shingle or tile.Roll Composition (rolled Mineral Roof)
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
CoolingThe type of cooling or air conditioning in the home.Yes
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Basement
PoolWhether the property has a pool, and what kind, such as in-ground.No
Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.
EHM
Alcott Elementary SchoolA
Elementary · Grades KG–5 · 0.6 mi
Concord Carlisle High SchoolA+
High · Grades 9–12 · 1.0 mi
Concord Middle SchoolB+
Middle · Grades 6–8 · 2.6 mi
District: Concord School District
Neighborhood · ZIP 01742These 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.47
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.108
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.74
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.30%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.2.0%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.9%
PopulationHow many people live in this area.18,974
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.737 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$185,796
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$221,000
Average tempThe average temperature here across a full year.49°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%
All UnitsEvery property record the county has at this street address, such as the units in a condo building. Prices shown are our estimates, not asking prices.
100 Keyes Rd Apt 104
2 bd · 2 ba · 1,306 ft²
100 Keyes Rd Apt 106
2 bd · 2 ba · 1,136 ft²
100 Keyes Rd Apt 107
1 bd · 1 ba · 919 ft²
100 Keyes Rd Apt 108
2 bd · 2 ba · 1,145 ft²
100 Keyes Rd Apt 109
3 bd · 2 ba · 1,581 ft²
100 Keyes Rd Apt 110
2 bd · 2 ba · 1,263 ft²
100 Keyes Rd Apt 131
1 bd · 1 ba · 1,040 ft²
100 Keyes Rd # 133
2 bd · 2 ba · 1,466 ft²
100 Keyes Rd # 204
2 bd · 2 ba · 1,339 ft²
100 Keyes Rd Apt 205
2 bd · 1 ba · 1,516 ft²
100 Keyes Rd Apt 206
2 bd · 2 ba · 1,135 ft²
100 Keyes Rd Apt 207
1 bd · 1 ba · 962 ft²
100 Keyes Rd # 208
1 bd · 2.5 ba · 1,145 ft²
100 Keyes Rd Apt 209
3 bd · 2 ba · 1,578 ft²
100 Keyes Rd Apt 210
2 bd · 2 ba · 1,250 ft²
100 Keyes Rd Apt 211
1 bd · 2 ba · 1,146 ft²
100 Keyes Rd # 212
2 bd · 2.5 ba · 1,863 ft²
100 Keyes Rd Apt 213
1 bd · 1 ba · 999 ft²
100 Keyes Rd # 214
2 bd · 2.5 ba · 1,684 ft²
100 Keyes Rd Apt 215
2 bd · 2 ba · 1,356 ft²
100 Keyes Rd Apt 216
2 bd · 3 ba · 1,709 ft²
100 Keyes Rd Apt 218
2 bd · 3 ba · 1,684 ft²
100 Keyes Rd # 220
1 bd · 1.5 ba · 1,378 ft²
100 Keyes Rd # 221
2 bd · 1 ba · 1,074 ft²
100 Keyes Rd # 222
1 bd · 1 ba · 822 ft²
100 Keyes Rd # 223
2 bd · 2 ba · 1,300 ft²
100 Keyes Rd Apt 224
2 bd · 2 ba · 1,271 ft²
100 Keyes Rd Apt 231
1 bd · 1 ba · 774 ft²
100 Keyes Rd # 232
2 bd · 1.5 ba · 1,286 ft²
100 Keyes Rd Apt 233
1 bd · 1 ba · 1,066 ft²
100 Keyes Rd # 234
2 bd · 1.5 ba · 1,445 ft²
100 Keyes Rd Apt 302
1 bd · 1 ba · 839 ft²
100 Keyes Rd # 304
2 bd · 2 ba · 1,304 ft²
100 Keyes Rd # 305
2 bd · 1.5 ba · 1,475 ft²
100 Keyes Rd Apt 306
2 bd · 2 ba · 1,133 ft²
100 Keyes Rd # 307
1 bd · 1 ba · 920 ft²
100 Keyes Rd # 308
2 bd · 2 ba · 1,139 ft²
100 Keyes Rd # 309
3 bd · 2 ba · 1,579 ft²
100 Keyes Rd Apt 310
2 bd · 2 ba · 1,240 ft²
100 Keyes Rd Apt 311
1 bd · 1 ba · 1,026 ft²
100 Keyes Rd Apt 313
1 bd · 1 ba · 908 ft²
100 Keyes Rd # 315
1 bd · 1 ba · 857 ft²
100 Keyes Rd # 320
2 bd · 2 ba · 1,659 ft²
100 Keyes Rd Apt 321
2 bd · 1 ba · 1,107 ft²
100 Keyes Rd Apt 322
1 bd · 1 ba · 814 ft²
100 Keyes Rd Apt 323
2 bd · 2 ba · 1,287 ft²
100 Keyes Rd # 324
2 bd · 2 ba · 1,271 ft²
100 Keyes Rd # 331
1 bd · 1 ba · 772 ft²
100 Keyes Rd Apt 333
1 bd · 1 ba · 1,094 ft²
100 Keyes Rd # 411
2 bd · 2 ba · 1,786 ft²
100 Keyes Rd Apt 413
1 bd · 1 ba · 911 ft²
100 Keyes Rd Apt 415
1 bd · 1 ba · 875 ft²
100 Keyes Rd Apt 421
2 bd · 1 ba · 1,134 ft²
100 Keyes Rd Apt 422
1 bd · 1 ba · 819 ft²
100 Keyes Rd Apt 423
2 bd · 2 ba · 1,291 ft²
100 Keyes Rd # 424
2 bd · 2 ba · 1,269 ft²
Data by ATTOM. Valuations are automated estimates, not appraisals. Photos from Google Street View and may not depict the current property state.
About 100 Keyes Rd
How many units are in 100 Keyes Rd, Concord, MA?
100 Keyes Rd, Concord, MA has 56 residential units across 4 floors, built in 1952, according to county assessor records.
What is a unit at 100 Keyes Rd, Concord, MA worth?
The median TopHap Estimate across the 56 units at 100 Keyes Rd, Concord, MA is $829,896. That works out to $675 per square foot. Units run from 772 to 1,863 square feet. Estimates are modelled from recorded sales and assessments, not appraisals.
Is 100 Keyes Rd, Concord, MA expensive for Concord?
Units at 100 Keyes Rd, Concord, MA carry a median of $675 per square foot, 33% above the Concord median of $507 per square foot.
How often do units sell at 100 Keyes Rd, Concord, MA?
1 units at 100 Keyes Rd, Concord, MA sold in the last 12 months, out of 153 recorded arms-length sales all time. That is a turnover rate of 1.8% of the building per year. The median sale over that period was $1.3M.
Have units at 100 Keyes Rd, Concord, MA appreciated?
Across 93 repeat sales of the same unit, 100 Keyes Rd, Concord, MA returned a median 3.6% per year. Because each pair is the same unit bought and sold, the figure is not distorted by which units traded. The median owner held for 6.5 years.
What floor plans does 100 Keyes Rd, Concord, MA have?
The most common plan at 100 Keyes Rd, Concord, MA is a 2-bedroom of 1,271 square feet, repeated 2 times, with a median estimate of $868,502. TopHap identifies 1 recurring plans in the building.
More homes on Keyes Rd
- 100 Keyes Rd # 2162 bd · 3 ba · 1,709 ft² · Sold $1.3M · Dec 2025
- 100 Keyes Rd # 131$722K1 bd · 1 ba · 1,040 ft² · Sold Oct 2025
- 100 Keyes Rd # 223$1M2 bd · 2 ba · 1,300 ft² · Sold $951K · Sep 2025
- 100 Keyes Rd # 305$902K2 bd · 2 ba · 1,475 ft² · Sold $835K · Jun 2025
- 100 Keyes Rd # 310$1.1M2 bd · 2 ba · 1,240 ft² · Sold $1M · Jun 2025
- 100 Keyes Rd # 205$925K2 bd · 1 ba · 1,516 ft² · Sold $851K · May 2025
- 100 Keyes Rd # 211$738K1 bd · 2 ba · 1,146 ft² · Sold $665K · Jan 2025
- 100 Keyes Rd # 311$657K1 bd · 1 ba · 1,026 ft² · Sold $585K · Nov 2024
- 100 Keyes Rd # 209$1.6M3 bd · 2 ba · 1,578 ft² · Sold $1.4M · Nov 2024
- 100 Keyes Rd # 218$948K2 bd · 3 ba · 1,684 ft² · Sold $845K · Nov 2024
- 100 Keyes Rd # 106$769K2 bd · 2 ba · 1,136 ft² · Sold May 2024
- 100 Keyes Rd # 315$578K1 bd · 1 ba · 857 ft² · Sold $520K · Apr 2024
Closest homes
- 100 Keyes Rd Apt 313$624K0 ft · 1 bd · 1 ba · 908 ft² · Sold $550K · Jun 2021
- 100 Keyes Rd Apt 311$657K0 ft · 1 bd · 1 ba · 1,026 ft² · Sold $585K · Nov 2024
- 100 Keyes Rd$736K0 ft · 2 bd · 1 ba · 1,074 ft² · Sold $725K · Jan 2021
- 100 Keyes Rd Apt 205$925K0 ft · 2 bd · 1 ba · 1,516 ft² · Sold $851K · May 2025
- 100 Keyes Rd Apt 213$678K0 ft · 1 bd · 1 ba · 999 ft²
- 100 Keyes Rd$893K0 ft · 2 bd · 2 ba · 1,339 ft² · Sold $730K · Apr 2020
- 100 Keyes Rd$857K0 ft · 2 bd · 2 ba · 1,271 ft² · Sold $775K · Sep 2021
- 100 Keyes Rd Apt 333$778K0 ft · 1 bd · 1 ba · 1,094 ft² · Sold $410K · Jun 2010
More homes in Concord 01742
- 51 Revolutionary Rd$3M3 bd · 2 ba · 2,140 ft² · Sold $3M · Aug 2026
- 25 Black Horse Pl$1.3M3 bd · 3.5 ba · 2,517 ft² · Sold $1.3M · Aug 2026
- 38 Blueberry Ln$2.1M5 bd · 3.5 ba · 3,852 ft² · Sold $2.1M · Aug 2026
- 1465 Sudbury Rd$1.2M5 bd · 3.5 ba · 2,517 ft² · Sold $1.1M · Aug 2026
- 244 Musterfield Rd$3.4M6 bd · 6.5 ba · 5,417 ft² · Sold $3.4M · Aug 2026
- 39 Winslow St$1.9M4 bd · 2.5 ba · 2,074 ft² · Sold $1.9M · Aug 2026
- 93 Nashoba Rd$1.6M4 bd · 3 ba · 2,364 ft² · Sold $1.6M · Aug 2026
- 1844 Main St$675K3 bd · 2.5 ba · 1,326 ft² · Sold $650K · Aug 2026
- 53 Spring Rd$2M5 bd · 4.5 ba · 3,813 ft² · Sold $2M · Aug 2026
- 180 Laurel St$3M4 bd · 5.5 ba · 3,504 ft² · Sold $3M · Aug 2026
- 32 Thoreau St2 bd · 1.5 ba · 1,129 ft² · Sold $1M · Aug 2026
- 161 Crescent Rd$1.7M4 bd · 2.5 ba · 2,566 ft² · Sold $1.7M · Aug 2026
Assigned schools
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