Who owns your block
500 block of N 10th St
A mixed-ownership block: 12% owner-occupied, 31% investor-held, with 23 open code violations and 6 homes behind $31,111 on taxes.
The typical home here is up 177% since 2016, now about $415K. Property taxes are climbing about 20% a year though the increases have eased lately.
- 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 $415K — about 1.9× the citywide median, and below the ZIP 19123 median of $455K. The same block, read against everyone else in the ZIP 19123 and across Philadelphia.
| This block | ZIP 19123 | Philadelphia | |
|---|---|---|---|
| Median home value | $415K | $455K | $223K |
| Owner-occupied | 4% | 23% | 41% |
Safety & quality of life
Within 200 metres of the block over the last 12 months: 165 reported crimes (50 violent) and 109 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
- $415K typical home, up +177% since 2016
- Tax bill $719 to $5,468 a year, +20%/yr and compounding
- Whole block: $11M assessed, $143,303/yr to the city, about $5,512 per home
Median assessed value · 2016–2027
▲ +177% since 2016
Estimated property tax · per home, per year
▲ +661% since 2016 · ~+20%/yr
Who really pays — effective tax rate, one dot per home
544 N 10th St is assessed at $629K but pays $0 a year — about 0% of the $8,803 it would owe at the statutory rate, because its new-construction value is abated.
The block as an asset
Read like a financial asset, this block has beaten the Philadelphia market, compounding +9.7% 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 $277 today versus $201 across Philadelphia — this block outpaced 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 40 arm's-length sales since 2000. The typical home has sold 1 time in that window, while 9 have not changed hands at all.
Every recorded sale · price & date
Who owns it
Ownership of 26 parcels
- Owner-occupied 3
- Investor / LLC 3
- Absentee individual 10
- Vacant 10
Value distribution today
The block's largest owner, Colosimo James J Tr, carries 3 open violations across 10 properties it owns around the city.
| Owner | On block | Owns citywide | Portfolio value | Source |
|---|---|---|---|---|
| Colosimo James J Tr (individual) | 4 | 10 | $4.3M | phila.gov ↗ |
| Mei Zhao Llc | 3 | 5 | $2.3M | phila.gov ↗ |
| 10 Ridge House Llc | 1 | 1 | $491K | phila.gov ↗ |
| Sa 990 Spring Garden Lp | 1 | 1 | $1.7M | phila.gov ↗ |
| 532 N 10th St Llc | 1 | 1 | $62K | phila.gov ↗ |
| J And J Zheng Investment Llc | 1 | 1 | $453K | phila.gov ↗ |
| C & Z Home Llc | 1 | 1 | $528K | phila.gov ↗ |
House by house
All 26 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
Worth a look
| Address | Ownership | Value & trend | Bd/Ba | Sq ft | Built | Sales | Flags |
|---|---|---|---|---|---|---|---|
| 500 N 10TH ST New constructionBought for $1.8M in 2006, built new under a 2016 permit, sold for $500K in 2015. | Vacant | $491K | —/— | — | — | 5 | 3 viol |
| 504 N 10TH ST ImprovedOwner pulled a use permit in 2016. | Vacant | $1.7M | —/— | — | — | 0 | |
| 510 N 10TH ST ImprovedBought for $425K in 2004. Owner pulled a use permit in 2013. | Absentee individual | $430K | —/— | 2,046 | 1925 | 2 | |
| 512 N 10TH ST ImprovedBought for $425K in 2004. Owner pulled a alteration permit in 2017. | Absentee individual | $376K | 3/1 | 1,393 | 1925 | 3 | rented |
| 514 N 10TH ST ImprovedBought for $190K in 2007. Owner pulled a addition and/or alterations permit in 2022. | Absentee individual | $361K | —/— | 1,718 | 1925 | 2 | |
| 516 N 10TH ST ImprovedBought for $425K in 2004. Owner pulled a use permit in 2010. | Absentee individual | $381K | —/— | 1,814 | 1925 | 2 | rentedtax lien |
| 530 N 10TH ST TradedTraded 2×: $20K in 2004 → $535K in 2019 (+2575%). | Vacant | $64K | —/— | — | — | 2 | |
| 532 N 10TH ST TradedTraded 2×: $280K in 2004 → $156K in 2022 (-44%). | Vacant | $62K | —/— | — | — | 2 | |
| 533 N 10TH ST | Vacant | $190K | —/— | — | — | 1 | |
| 534 N 10TH ST Historysold $535K (2019); 2 L&I violations (2020). | Investor / LLC | $31K | —/— | 255 | 1998 | 1 | |
| 535 N 10TH ST ImprovedBought for $8K in 2001. Owner pulled a electrical permit in 2008. | Absentee individual | $536K | 5/3 | 2,426 | 1925 | 2 | rented |
| 536 N 10TH ST HistoryL&I violation (2014). | Owner-occupied | $537K | 6/3 | 2,589 | 1915 | 0 | rented |
| 537 N 10TH ST ImprovedBought for $25K in 2000. Owner pulled a plumbing permit in 2009. | Owner-occupied | $400K | —/— | 2,118 | 1925 | 1 | |
| 538 N 10TH ST New constructionbuilt new under a 2024 permit, sold for $409K in 2019. | Investor / LLC | $530K | —/— | 2,646 | 1915 | 1 | |
| 539 N 10TH ST History2 L&I violations (2011); L&I violation (2014); 2 L&I violations (2022). | Vacant | $233K | —/— | — | — | 0 | |
| 540 N 10TH ST HistoryL&I violation (2014). | Absentee individual | $531K | —/— | 2,646 | 1915 | 0 | |
| 541 N 10TH ST History2 L&I violations (2011); 2 L&I violations (2015); 2 L&I violations (2022). | Vacant | $233K | —/— | — | — | 0 | |
| 542 N 10TH ST | Absentee individual | $559K | —/— | 2,994 | 1915 | 1 | |
| 543 N 10TH ST History2 L&I violations (2011); 2 L&I violations (2015); 2 L&I violations (2022). | Vacant | $233K | —/— | — | — | 0 | |
| 544 N 10TH ST New constructionbuilt new (tax-abated). | Absentee individual | $629K | —/— | 2,934 | 1915 | 0 | abated5 viol |
| 545 N 10TH ST History2 L&I violations (2011); L&I violation (2012); L&I violation (2014); 2 L&I violations (2022). | Vacant | $176K | —/— | — | — | 0 | |
| 546 N 10TH ST New constructionBought for $460K in 2018, built new under a 2010 permit, sold for $500K in 2019. | Absentee individual | $489K | —/— | 2,363 | 2010 | 5 | rented |
| 547 N 10TH ST New constructionBought for $4K in 2000, built new under a 2018 permit, sold for $650K in 2024. | Investor / LLC | $453K | 4/1 | 1,560 | 1925 | 4 | rented |
| 548 N 10TH ST History3 L&I violations (2021); 2 L&I violations (2022); 2 L&I violations (2025); 2 L&I violations (2026). | Vacant | $108K | —/— | — | — | 0 | |
| 549-51 N 10TH ST ImprovedBought for $495K in 2006. Owner pulled a change of use permit in 2026. | Absentee individual | $730K | —/— | 5,748 | 1915 | 3 | 15 viol |
| 550 N 10TH ST New constructionBought for $450K in 2015, built new under a 2011 permit, sold for $680K in 2019. | Owner-occupied | $528K | —/— | 2,553 | 2012 | 3 | rented |
Neighborhood
Neighborhood income and demographics are coming soon.
Generated 2026-07-08 from public City of Philadelphia records · Download this block's data (CSV)