Who owns your block
400 block of S 21st St
A mostly owner-occupied block: 93% of homes are lived in by their owners.
The typical home here is up 66% since 2016, now about $752K. Property taxes are climbing about 4% a year.
- Owner-occupied
- Investor / LLC
- Absentee
- Vacant
- Has violations
By the Numbers
How fast it's moving
Assessed-value change for the typical home. Philadelphia taxes a flat 1.3998% of value, so the bill moves with it.
The makeup of the block
Every home, plotted by size and assessed value — press play and watch the block reprice from 2016 to 2027. One bubble per house (area = lot size), colored by who owns it; a gold ring marks tax-abated new construction. Click a bubble for its report.
- Owner-occupied
- Investor / LLC
- Absentee
- Vacant
- Tax-abated
- Bubble = lot size
- → bigger interior · ↑ higher value
Assessed values from the city's year-by-year assessment record — a proxy for price, lumpy in reassessment years.
How the block compares
The typical home here is $752K — about 3.4× the citywide median, and above the ZIP 19146 median of $364K. The same block, read against everyone else in the ZIP 19146 and across Philadelphia.
| This block | ZIP 19146 | Philadelphia | |
|---|---|---|---|
| Median home value | $752K | $364K | $223K |
| Owner-occupied | 57% | 29% | 41% |
Safety & quality of life
Within 200 metres of the block over the last 12 months: 545 reported crimes (15 violent) and 425 resident 311 requests to the city.
Most reported crimes
Top 311 complaints
Philadelphia Police incident reports and 311 service requests within 200m, trailing 12 months. Reported location, not necessarily where an incident occurred.
Schools
The public schools this block is zoned for — its official School District of Philadelphia catchments.
Catchment assignments from the School District of Philadelphia via City of Philadelphia open data. Confirm with the District before enrollment decisions.
What it's worth, and where taxes are going
- $752K typical home, up +66% since 2016
- Tax bill $5,669 to $9,131 a year, +4%/yr and compounding
- Whole block: $14M assessed, $189,105/yr to the city, about $13,507 per home
Median assessed value · 2016–2027
▲ +66% since 2016
Estimated property tax · per home, per year
▲ +61% since 2016 · ~+4%/yr
Who really pays — effective tax rate, one dot per home
The block as an asset
Read like a financial asset, this block has lagged the Philadelphia market, compounding +4.7% a year against the city's 6.5%.
Indexed performance · this block vs. the Philadelphia market
Rebased to 100 in 2016, like a stock against its index. $100 in the typical home here would be worth $166 today versus $201 across Philadelphia — this block trailed the market.
Return is from assessed-value history (a proxy for market price, lumpy in reassessment years); rental yield is estimated from ACS area rents. Informational only, not investment advice.
How often it changes hands
This block has recorded 24 arm's-length sales since 2001. The typical home has sold 2 times in that window, while 3 have not changed hands at all.
Every recorded sale · price & date
Who owns it
Ownership of 14 parcels
- Owner-occupied 13
- Absentee individual 1
Value distribution today
| Owner | On block | Owns citywide | Portfolio value | Source |
|---|---|---|---|---|
| Jason Cover (individual) | 2 | 2 | $761K | phila.gov ↗ |
House by house
All 14 homes on the block — value and 12-year trajectory, ownership, and the paper trail on the ones that were bought, built, torn down, or flipped. Sorted up the street; each links to its full city record — or download the roster (CSV).
Every house's assessed value, 2016–2027 — each line is one home
| Address | Ownership | Value & trend | Bd/Ba | Sq ft | Built | Sales | Flags |
|---|---|---|---|---|---|---|---|
| 401 S 21ST ST Frequently tradedTraded 4×: $279K in 2001 → $315K in 2009 (+13%). | Owner-occupied | $613K | —/— | 924 | 1800 | 4 | |
| 403 S 21ST ST ImprovedBought for $578K in 2017. Owner pulled a alterations permit in 2020. | Owner-occupied | $858K | 3/2 | 1,512 | 1800 | 1 | |
| 405 S 21ST ST ImprovedOwner pulled a alterations permit in 2021. | Owner-occupied | $759K | —/— | 1,562 | 1800 | 0 | |
| 406 S 21ST ST ImprovedBought for $315K in 2001. Owner pulled a exterior window and door replacement permit in 2026. | Owner-occupied | $688K | —/— | 1,458 | 1800 | 2 | |
| 406R S 21ST ST ImprovedBought for $800K in 2017. Owner pulled a electrical permit in 2019. | Owner-occupied | $752K | 3/1 | 1,190 | 1800 | 1 | |
| 406R S 21ST ST | Owner-occupied | $746K | —/— | 1,785 | 1800 | 0 | |
| 407 S 21ST ST TradedTraded 2×: $350K in 2013 → $499K in 2015 (+43%). | Owner-occupied | $604K | —/— | 1,350 | 1800 | 2 | rented |
| 408 S 21ST ST | Absentee individual | $455K | 3/1 | 1,020 | 1800 | 1 | rented |
| 408R S 21ST ST | Owner-occupied | $8K | —/— | 480 | 1800 | 1 | |
| 410 S 21ST ST New constructionBought for $400K in 2005, built new under a 2007 permit, sold for $2.6M in 2024. | Owner-occupied | $2.6M | 4/4 | 5,400 | 2007 | 3 | |
| 412 S 21ST ST New constructionBought for $400K in 2005, built new under a 2009 permit, sold for $2.4M in 2017. | Owner-occupied | $2.5M | —/— | 5,200 | 2007 | 3 | |
| 414 S 21ST ST New constructionBought for $400K in 2005, built new under a 2024 permit, sold for $2.4M in 2024. | Owner-occupied | $2.2M | 4/4 | 5,200 | 2007 | 4 | |
| 418 S 21ST ST | Owner-occupied | $752K | —/— | 1,215 | 1800 | 0 | |
| 420 S 21ST ST ImprovedBought for $434K in 2006. Owner pulled a mechanical permit in 2013. | Owner-occupied | $752K | —/— | 1,215 | 1800 | 2 |
Neighborhood
Neighborhood income and demographics are coming soon.
Generated 2026-07-08 from public City of Philadelphia records · Download this block's data (CSV)