01821 (Billerica) housing market
September 2026 · All Residences
01821 (Billerica)'s median sale price rose 0.8% compared with the same month last year. Homes sold at the same median pace as a year ago, 20 days. Sellers received a median 100% of their final list price.
What this means for sellers
Recent sales are the best guide to pricing. A considered launch usually matters more than timing the market.
What this means for buyers
There is a reasonable selection of homes, giving time to compare options before making an offer.
Key figures
Closed sales: 25 this month · 87 last 3 months · 263 trailing 12 months
Median days on market
20 days
Prior month: 34 days · MoM -41.2%
Last year: 20 days · YoY 0%
Average days on market
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Cumulative days on market
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Closed sales (month)
25
Prior month: 34 · MoM -26.5%
Last year: 20 · YoY +25%
Median sale price
$685,000
Prior month: $710,000 · MoM -3.5%
Last year: $679,500 · YoY +0.8%
Average sale price
$679,712
Prior month: $722,564 · MoM -5.9%
Last year: $655,088 · YoY +3.8%
Median price per sq ft
$375
Prior month: $381 · MoM -1.6%
Last year: $395 · YoY -5.1%
New listings
48
Prior month: 38 · MoM +26.3%
Last year: 33 · YoY +45.5%
Active inventory
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Pending sales
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Months of supply
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Absorption rate
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Sale-to-list ratio
100%
Prior month: 99.5% · MoM +0.5%
Last year: 100% · YoY 0%
Sold over asking
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With price reductions
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Trends
Median sale price moved from $622,500 in October 2024 to $685,000 in September 2026.
View as table
| Month | Median price |
|---|---|
| October 2024 | $622,500 |
| November 2024 | $676,950 |
| December 2024 | $760,875 |
| January 2025 | $800,000 |
| February 2025 | $720,000 |
| March 2025 | $705,000 |
| April 2025 | $729,900 |
| May 2025 | $725,000 |
| June 2025 | $705,000 |
| July 2025 | $705,000 |
| August 2025 | $740,000 |
| September 2025 | $679,500 |
| October 2025 | $710,000 |
| November 2025 | $735,000 |
| December 2025 | $637,500 |
| January 2026 | $850,000 |
| February 2026 | $650,000 |
| March 2026 | $650,000 |
| April 2026 | $690,000 |
| May 2026 | $675,000 |
| June 2026 | $680,500 |
| July 2026 | $723,500 |
| August 2026 | $710,000 |
| September 2026 | $685,000 |
In September 2026: 25 closed sales and 48 new listings.
View as table
| Month | Closed sales | New listings |
|---|---|---|
| October 2024 | 28 | 28 |
| November 2024 | 16 | 29 |
| December 2024 | 28 | 8 |
| January 2025 | 14 | 30 |
| February 2025 | 16 | 21 |
| March 2025 | 23 | 14 |
| April 2025 | 25 | 41 |
| May 2025 | 23 | 41 |
| June 2025 | 32 | 25 |
| July 2025 | 26 | 26 |
| August 2025 | 23 | 27 |
| September 2025 | 20 | 33 |
| October 2025 | 26 | 21 |
| November 2025 | 14 | 13 |
| December 2025 | 26 | 13 |
| January 2026 | 15 | 17 |
| February 2026 | 12 | 11 |
| March 2026 | 13 | 21 |
| April 2026 | 11 | 46 |
| May 2026 | 25 | 39 |
| June 2026 | 34 | 39 |
| July 2026 | 28 | 27 |
| August 2026 | 34 | 38 |
| September 2026 | 25 | 48 |
Days on market moved from 20 in October 2024 to 20 in September 2026.
View as table
| Month | Median days |
|---|---|
| October 2024 | 20 |
| November 2024 | 21 |
| December 2024 | 19 |
| January 2025 | 32 |
| February 2025 | 21 |
| March 2025 | 20 |
| April 2025 | 15 |
| May 2025 | 17 |
| June 2025 | 17 |
| July 2025 | 15 |
| August 2025 | 15 |
| September 2025 | 20 |
| October 2025 | 21 |
| November 2025 | 21 |
| December 2025 | 22 |
| January 2026 | 35 |
| February 2026 | 20 |
| March 2026 | 20 |
| April 2026 | 19 |
| May 2026 | 17 |
| June 2026 | 19 |
| July 2026 | 20 |
| August 2026 | 34 |
| September 2026 | 20 |
Months of supply: not enough history yet.
View as table
| Month | Months |
|---|---|
| October 2024 | — |
| November 2024 | — |
| December 2024 | — |
| January 2025 | — |
| February 2025 | — |
| March 2025 | — |
| April 2025 | — |
| May 2025 | — |
| June 2025 | — |
| July 2025 | — |
| August 2025 | — |
| September 2025 | — |
| October 2025 | — |
| November 2025 | — |
| December 2025 | — |
| January 2026 | — |
| February 2026 | — |
| March 2026 | — |
| April 2026 | — |
| May 2026 | — |
| June 2026 | — |
| July 2026 | — |
| August 2026 | — |
| September 2026 | — |
Sale-to-list ratio moved from 100% in October 2024 to 100% in September 2026.
View as table
| Month | % of list |
|---|---|
| October 2024 | 100% |
| November 2024 | 100.4% |
| December 2024 | 100.3% |
| January 2025 | 98% |
| February 2025 | 100.4% |
| March 2025 | 102.5% |
| April 2025 | 100.7% |
| May 2025 | 104.3% |
| June 2025 | 104% |
| July 2025 | 100.9% |
| August 2025 | 101.3% |
| September 2025 | 100% |
| October 2025 | 100.8% |
| November 2025 | 99.7% |
| December 2025 | 100% |
| January 2026 | 99.4% |
| February 2026 | 100.1% |
| March 2026 | 101.6% |
| April 2026 | 106.7% |
| May 2026 | 102.9% |
| June 2026 | 102.2% |
| July 2026 | 102.9% |
| August 2026 | 99.5% |
| September 2026 | 100% |