Real Estate Data API

02451 Waltham

102 active listings out of 6.8K total properties we track in ZIP 02451 (Waltham, MA) — listings, off-market homes, rentals, and full sales/tax history. Refreshed nightly.

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Active
102
Median
$812K
+34.9%
Sold Sep
8
±0%
Tracked
6.8K

Download Waltham 02451 property data

6,806 property records for ZIP 02451 — address, beds/baths, sqft, year built, status, list and last-sale price, price and tax history. Parquet or CSV.

Download free · as of Oct 2026

Monthly snapshot · 878 KB Parquet · CSV (1.2 MB)

Records keep changing after a snapshot is compiled.

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Zoomed out

While you're here, take in the bigger picture — maps below show Boston metro, not just 02451. Same company, same dataset, different resolution.

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Over the past 12 months, ZIP 02451 has recorded 93 home sales. In September 2026 there were8 sales (±0% vs the prior month). Most recent median sale price: $1.11M.

Key Numbers
Tracked
6.8K
Active
102
Median list
$812K
Sales (12mo)
93
Get this data →

Right now, 102 homes are actively for sale in ZIP 02451. Median list price is $812K at $482/sqft. Hover each hex for micro-neighborhood stats (median price, $/sqft, top property type).

Key Numbers
Tracked
6.8K
Active
102
Median list
$812K
Sales (12mo)
93
Get this data →
Key Numbers
Tracked
6.8K
Active
102
Median list
$812K
Sales (12mo)
93
Get this data →
Key Numbers
Tracked
6.8K
Active
102
Median list
$812K
Sales (12mo)
93
Get this data →
Key Numbers
Tracked
6.8K
Active
102
Median list
$812K
Sales (12mo)
93
Get this data →
Key Numbers
Tracked
6.8K
Active
102
Median list
$812K
Sales (12mo)
93

Inventory breakdown

Distribution of the 102 currently-active listings in ZIP 02451. Full dataset covers 6.8K properties — listings, off-market homes, rentals, and full history.

Active by price range
Under $300K 0 (0%)
$300K–$500K 8 (7.8%)
$500K–$750K 33 (32.4%)
$750K–$1M 34 (33.3%)
$1M–$2M 22 (21.6%)
$2M+ 5 (4.9%)
Active by bedroom count
Studio/1 bd 7
2 bd 31
3 bd 33
4 bd 22
5+ bd 9
Active by property type
Single Family 58 (56.9%)
Condo 23 (22.5%)
Townhouse 11 (10.8%)
Multi Family 10 (9.8%)
For Developers

Get Waltham 02451 data in your app

curl
request
GET https://api.straply.com/v1/markets/zip/02451
Authorization: Bearer $STRAPLY_KEY
200 OK response
{
  "zip": "02451",
  "total_tracked": 6828,
  "active": 102,
  "median_list": 812400
}

ZIP 02451 · Waltham, MA real estate: market summary

As of November 2026, Straply tracks 6,828 homes in ZIP 02451 (Waltham, MA), with 102 active for sale at a median list price of $812,400 (~$482/sq ft). Notably, home prices are climbing — the median sale price is up 35% year over year.

Median list price
$812,400
Median $/sq ft
$482
Active listings
102
Median sale price
$1,110,000 (+35% YoY)
Properties tracked
6,828

Frequently asked: ZIP 02451 · Waltham, MA real estate

What is the median home price in ZIP 02451?

The median list price in ZIP 02451 (Waltham, MA) is $812,400 (about $482 per square foot), based on 102 active listings tracked by Straply as of November 2026.

What price range are homes in ZIP 02451?

Active listings in ZIP 02451 (Waltham, MA) concentrate in: 33% $750k–$1m and 32% $500k–$750k.

Are home prices in ZIP 02451 going up or down?

The median sale price is $1,110,000, up 35% year over year. Straply tracked 93 sales here over the past 12 months.

How many homes are for sale in ZIP 02451?

Straply is tracking 102 active listings in ZIP 02451 (Waltham, MA) out of 6,828 properties on record as of November 2026.

How old are the homes in ZIP 02451?

Most homes in ZIP 02451 (Waltham, MA) were built in the 1950s. About 27% were built after 1980, while 27% predate 1940. The newest tracked home dates to 2026.

What types of homes are in ZIP 02451?

ZIP 02451 (Waltham, MA) is mostly single-family homes (57% of listings). Also common: condos 22%, townhouses 11%.

How many bedrooms do homes in ZIP 02451 typically have?

The most common size in ZIP 02451 (Waltham, MA) is 3 bd.

What areas are near ZIP 02451?

Nearby markets Straply also tracks include Waltham 02452, Waltham 02453, Newton 02465, Lexington 02421.

Data as of November 2026. Source: Straply. For address-level history and programmatic access, use the Straply API.