Who owns your block
400 block of S 51st St
A mixed-ownership block: 58% owner-occupied, 29% investor-held, with 9 open code violations and 2 homes behind $1,057 on taxes.
The typical home here is up 120% since 2016, now about $539K. Property taxes are climbing about 8% 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 $539K — about 2.4× the citywide median, and above the ZIP 19143 median of $152K. The same block, read against everyone else in the ZIP 19143 and across Philadelphia.
| This block | ZIP 19143 | Philadelphia | |
|---|---|---|---|
| Median home value | $539K | $152K | $223K |
| Owner-occupied | 25% | 41% | 41% |
Safety & quality of life
Within 200 metres of the block over the last 12 months: 55 reported crimes (16 violent) and 181 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
- $539K typical home, up +120% since 2016
- Tax bill $2,974 to $7,096 a year, +8%/yr and compounding
- Whole block: $13M assessed, $150,548/yr to the city, about $6,273 per home
Median assessed value · 2016–2027
▲ +120% since 2016
Estimated property tax · per home, per year
▲ +139% since 2016 · ~+8%/yr
Who really pays — effective tax rate, one dot per home
439 S 51st St is assessed at $547K but pays $924 a year — about 12% of the $7,661 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 +7.4% 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 $220 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 47 arm's-length sales since 1999. The typical home has sold 2 times in that window, while 2 have not changed hands at all.
Every recorded sale · price & date
Who owns it
Ownership of 24 parcels
- Owner-occupied 14
- Investor / LLC 5
- Absentee individual 4
- Vacant 1
Value distribution today
The block's largest owner, Kadimah Development Llc, carries 2 open violations across 16 properties it owns around the city.
| Owner | On block | Owns citywide | Portfolio value | Source |
|---|---|---|---|---|
| Kadimah Development Llc | 1 | 16 | $5.3M | phila.gov ↗ |
| Adam Butler (individual) | 3 | 4 | $1.3M | phila.gov ↗ |
| Steknir Llc | 1 | 2 | $844K | phila.gov ↗ |
| West Side Properties Llc | 2 | 2 | $1.0M | phila.gov ↗ |
| Flips Hq Inc | 1 | 1 | $550K | phila.gov ↗ |
| Trehorn At 435 Malcolm Llc | 1 | 1 | $535K | phila.gov ↗ |
| 1442 S Fallon St Llc | 1 | 1 | $768K | phila.gov ↗ |
House by house
All 24 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 |
|---|---|---|---|---|---|---|---|
| 401 S 51ST ST TradedTraded 2×: $185K in 2008 → $210K in 2015 (+14%). | Owner-occupied | $511K | —/— | 2,880 | 1925 | 2 | |
| 403 S 51ST ST Renovated & sold onBought for $175K in 2007, alteration permit in 2007, sold for $260K in 2014 (+49%). | Owner-occupied | $762K | 6/2 | 2,880 | 1925 | 4 | |
| 405 S 51ST ST ImprovedBought for $385K in 2025. Owner pulled a addition and/or alteration permit in 2022. | Owner-occupied | $543K | —/— | 2,880 | 1925 | 1 | |
| 407 S 51ST ST ImprovedBought for $62K in 2003. Owner pulled a plumbing permit in 2012. | Investor / LLC | $543K | —/— | 2,880 | 1925 | 2 | |
| 409 S 51ST ST ImprovedBought for $115K in 2026. Owner pulled a make safe permit for rp permit in 2026. | Owner-occupied | $543K | —/— | 2,880 | 1925 | 1 | 9 viol |
| 411 S 51ST ST | Absentee individual | $550K | —/— | 2,960 | 1925 | 1 | |
| 413 S 51ST ST ImprovedBought for $301K in 2025. Owner pulled a addition and/or alteration permit in 2025. | Owner-occupied | $550K | 6/2 | 2,960 | 1925 | 2 | |
| 415 S 51ST ST Frequently tradedTraded 3×: $140K in 2005 → $269K in 2007 (+92%). | Owner-occupied | $550K | —/— | 2,960 | 1925 | 3 | |
| 417 S 51ST ST ImprovedBought for $75K in 2002. Owner pulled a mechanical permit in 2008. | Owner-occupied | $499K | —/— | 2,880 | 1925 | 2 | tax lien |
| 419 S 51ST ST Renovated & sold onBought for $180K in 2007, electrical permit in 2010, sold for $410K in 2025 (+128%). | Absentee individual | $489K | —/— | 2,832 | 1925 | 4 | |
| 421 S 51ST ST | Vacant | $20K | —/— | — | — | 1 | |
| 423 S 51ST ST TradedTraded 2×: $170K in 2006 → $320K in 2024 (+88%). | Investor / LLC | $519K | 5/3 | 2,992 | 1925 | 2 | tax lien |
| 429 S 51ST ST Historysold $85K (2002); 3 L&I violations (2008); 5 L&I violations (2012). | Absentee individual | $315K | —/— | 3,000 | 1925 | 1 | rented |
| 431 S 51ST ST ImprovedBought for $70K in 2003. Owner pulled a addition and/or alteration permit in 2022. | Owner-occupied | $589K | 4/3 | 2,960 | 1925 | 3 | |
| 433 S 51ST ST New constructionbuilt new under a 2020 permit (tax-abated), sold for $40K in 1999. | Owner-occupied | $499K | —/— | 2,960 | 1925 | 1 | abated |
| 435 S 51ST ST TradedTraded 2×: $340K in 2018 → $450K in 2022 (+32%). | Investor / LLC | $535K | 6/4 | 2,930 | 1925 | 2 | rented |
| 437 S 51ST ST Frequently tradedTraded 3×: $125K in 2004 → $450K in 2025 (+260%). | Owner-occupied | $698K | 6/2 | 2,930 | 1925 | 3 | |
| 439 S 51ST ST | Owner-occupied | $547K | —/— | 2,930 | 1925 | 0 | abated |
| 441 S 51ST ST New constructionbuilt new under a 2017 permit (tax-abated). | Owner-occupied | $547K | —/— | 2,930 | 1925 | 0 | abated |
| 443 S 51ST ST ImprovedBought for $190K in 2014. Owner pulled a addition and/or alteration permit in 2022. | Owner-occupied | $503K | —/— | 2,930 | 1925 | 1 | |
| 445 S 51ST ST | Absentee individual | $503K | —/— | 2,930 | 1925 | 1 | |
| 447 S 51ST ST Renovated & sold onBought for $240K in 2002, plumbing permit in 2007, sold for $541K in 2023 (+126%). | Owner-occupied | $768K | 5/3 | 2,930 | 1925 | 4 | |
| 449 S 51ST ST Renovated & sold onBought for $25K in 2000, plumbing permit in 2011, sold for $575K in 2014 (+2200%). | Investor / LLC | $503K | —/— | 2,930 | 1925 | 3 | |
| 451 S 51ST ST Frequently tradedTraded 3×: $25K in 2000 → $575K in 2014 (+2200%). | Investor / LLC | $518K | —/— | 2,880 | 1925 | 3 |
Neighborhood
Neighborhood income and demographics are coming soon.
Generated 2026-07-09 from public City of Philadelphia records · Download this block's data (CSV)