Who owns your block
400 block of Union St
A mixed-ownership block: 50% owner-occupied, 14% investor-held.
The typical home here is up 134% since 2016, now about $226K. Property taxes are climbing about 7% a year and the increases are speeding up.
- 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 $226K — about 1.0× the citywide median, and above the ZIP 19104 median of $211K. The same block, read against everyone else in the ZIP 19104 and across Philadelphia.
| This block | ZIP 19104 | Philadelphia | |
|---|---|---|---|
| Median home value | $226K | $211K | $223K |
| Owner-occupied | 29% | 18% | 41% |
Safety & quality of life
Within 200 metres of the block over the last 12 months: 164 reported crimes (58 violent) and 218 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
- $226K typical home, up +134% since 2016
- Tax bill $1,342 to $2,958 a year, +7%/yr and compounding
- Whole block: $3.2M assessed, $36,916/yr to the city, about $2,637 per home
Median assessed value · 2016–2027
▲ +134% since 2016
Estimated property tax · per home, per year
▲ +120% since 2016 · ~+7%/yr
Who really pays — effective tax rate, one dot per home
439 Union St is assessed at $219K but pays $273 a year — about 9% of the $3,068 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 +8% 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 $234 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 20 arm's-length sales since 2002. The typical home has sold 1 time in that window, while 5 have not changed hands at all.
Every recorded sale · price & date
Who owns it
Ownership of 14 parcels
- Owner-occupied 7
- Investor / LLC 2
- Absentee individual 5
Value distribution today
The block's largest owner, Darweis Inc, carries 3 open violations across 13 properties it owns around the city.
| Owner | On block | Owns citywide | Portfolio value | Source |
|---|---|---|---|---|
| Darweis Inc | 1 | 13 | $5.1M | phila.gov ↗ |
| 5145 Baltimore Avenue Llc | 1 | 5 | $884K | 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 |
|---|---|---|---|---|---|---|---|
| 413 UNION ST | Absentee individual | $126K | 3/1 | 776 | 1930 | 1 | rentedtax lien |
| 415 UNION ST | Owner-occupied | $226K | 3/1 | 1,004 | 1930 | 0 | |
| 417 UNION ST | Absentee individual | $226K | 3/1 | 1,004 | 1930 | 0 | rented |
| 419 UNION ST TradedTraded 2×: $129K in 2004 → $177K in 2008 (+37%). | Owner-occupied | $226K | 3/1 | 1,004 | 1930 | 2 | rented |
| 421 UNION ST Frequently tradedTraded 4×: $1K in 2007 → $130K in 2012 (+12900%). | Absentee individual | $260K | 3/1 | 1,064 | 1930 | 4 | rented |
| 423 UNION ST | Investor / LLC | $273K | 3/1 | 930 | 1930 | 0 | rented |
| 425 UNION ST | Absentee individual | $210K | 3/1 | 900 | 1930 | 1 | rented |
| 427 UNION ST Frequently tradedTraded 4×: $12K in 2002 → $260K in 2021 (+2067%). | Owner-occupied | $234K | 2/1 | 930 | 1930 | 4 | |
| 429 UNION ST | Owner-occupied | $299K | 3/1 | 930 | 1930 | 1 | tax lien |
| 431 UNION ST TradedTraded 2×: $85K in 2015 → $250K in 2021 (+194%). | Absentee individual | $298K | 2/1 | 930 | 1930 | 2 | |
| 433 UNION ST TradedTraded 2×: $29K in 2003 → $9K in 2015 (-71%). | Investor / LLC | $213K | 3/1 | 930 | 1930 | 2 | tax lien |
| 435 UNION ST Frequently tradedTraded 3×: $50K in 2010 → $265K in 2022 (+430%). | Owner-occupied | $213K | 2/1 | 930 | 1930 | 3 | |
| 437 UNION ST | Owner-occupied | $215K | 3/1 | 930 | 1930 | 0 | tax lien |
| 439 UNION ST | Owner-occupied | $219K | 3/1 | 1,000 | 1930 | 0 | abated |
Neighborhood
Neighborhood income and demographics are coming soon.
Generated 2026-07-08 from public City of Philadelphia records · Download this block's data (CSV)