Public Records
Edition
PhiladelphiaBuilt on public City of Philadelphia recordsJuly 8, 2026

Who owns your block

1800 block of N 21st St

A mixed-ownership block: 25% owner-occupied, 26% investor-held, with 1 open code violation and 15 homes behind $46,811 on taxes.

The typical home here is up 585% since 2016, now about $46K. Property taxes are climbing about 19% a year though the increases have eased lately.

Every parcel on the block, colored by who owns it. Tap a parcel for the owner and its city record.

By the Numbers

Median value
$46K
$28K–$370K
ZIP median $167K
Price / sq ft
$84
typical home
city median $177
Vs. Philadelphia
0.2×
the city median
city $223K
Recent sale
$365K
1 sold in 2yr
assessed $46K
Tax / yr
$664
typical · up to $5K
city ≈$3K/yr
Tax abatements
4 of 61
$30K/yr forgone
Owner-occupied
25%
12 of 61
city 41%
Rentals
7%
4 licensed
city 15% of homes
Open violations
1
L&I code
▼ block 2% · city 5%
Back taxes
$47K
15 of 61 behind
▲ block 25% · city 9%
Zoning appeals
4
4 homes · ZBA & boards
block 7% · city 5%

How fast it's moving

1 year
-3%
value · tax −$16
5 years
+416%
value · tax +$521
10 years
+416%
value · tax +$521

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.

2027
  • 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 $46K — about 0.2× the citywide median, and below the ZIP 19121 median of $167K. The same block, read against everyone else in the ZIP 19121 and across Philadelphia.

This blockZIP 19121Philadelphia
Median home value$46K$167K$223K
Owner-occupied15%20%41%

Safety & quality of life

Within 200 metres of the block over the last 12 months: 141 reported crimes (53 violent) and 99 resident 311 requests to the city.

Crimes · 12mo
141
53 violent · within 200m
311 requests · 12mo
99
31 still open

Most reported crimes

Other Assaults28
Thefts19
Vandalism/Criminal Mischief18
Theft from Vehicle14
All Other Offenses11
Motor Vehicle Theft11

Top 311 complaints

Maintenance Complaint52
Abandoned Vehicle11
Illegal Dumping7
Rubbish/Recyclable Material Collection5
Construction Complaints4
License Complaint3

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.

Elementary & Middle
Mastery Charter School At Frederick Douglass
High · 9-12
Strawberry Mansion HS
3133 Ridge Ave · 275 students

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

Median assessed value · 2016–2027

$0$100K$200K$46K2016: $7K2017: $9K2018: $9K2019: $9K2020: $9K2021: $9K2022: $9K2023: $52K2024: $52K2025: $47K2026: $47K2027: $46K2016202020232027

▲ +585% since 2016

Estimated property tax · per home, per year

$0$500$1,000$6432016: $912017: $1222018: $1222019: $1222020: $1222021: $1222022: $1222023: $5602024: $5602025: $6592026: $6592027: $6432016202020232027

▲ +607% since 2016 · ~+19%/yr

4
4 properties on this block carry a tax abatement or major exemption. New construction and gut rehabs get the improvement value exempted for up to 10 years, so their tax bills sit far below their real value — block-wide, exemptions keep about $30,242 a year off the tax roll. Read the tax figures with that in mind.

Who really pays

Philadelphia charges every home the same 1.40% of its assessed value. Abatements and exemptions shrink what some homes are taxed on — here's this block:

33 homes pay the full 1.40%28 pay less
$1,417pays now $5,178at the full rate

The starkest example: 1856 N 21st St is assessed at $370K but pays $1,417 a year — about 27% of the $5,178 it would owe at the full rate, because its new-construction value is abated for 10 years.

The block as an asset

Read like a financial asset, this block has beaten the Philadelphia market, compounding +19.1% a year against the city's 6.5%.

Indexed performance · this block vs. the Philadelphia market

95100100020162019202220252027This block 685 Philadelphia 201

Rebased to 100 in 2016, like a stock against its index. $100 in the typical home here would be worth $685 today versus $201 across Philadelphia — this block outpaced the market.

Annualized return
+19.1%/yr
price, since 2016
Total appreciation
+585%
since 2016
Net rental yield
—
est., after tax carry
Total return
+19.1%/yr
price + net rent
Real return
+16.1%/yr
after ~3% inflation
vs. Philadelphia
+12.6 pts
market 6.5%/yr

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 42 arm's-length sales since 2001. The typical home has sold 0 times in that window, while 36 have not changed hands at all.

Every recorded sale · price & date

$0$250K$500K20052010201520202025
42arm's-length sales since 2001
0times the typical home has sold
3most sales for a single property
36homes never sold in the window

Who owns it

Ownership of 61 parcels

Owner-occupied: 12Investor / LLC: 10Absentee individual: 7Vacant: 32 61parcels
  • Owner-occupied 12
  • Investor / LLC 10
  • Absentee individual 7
  • Vacant 32

Value distribution today

34 parcels3 parcels6 parcels4 parcels8 parcels2 parcels4 parcels
$28K$302K+
OwnerOn blockOwns citywidePortfolio valueSource
Philadelphia Housing Auth (individual)24773$1418Mphila.gov ↗
City Of Phila (individual)53871$6561Mphila.gov ↗
Philadelphia Land Bank (individual)42498$133Mphila.gov ↗
Redevelopment Authority (individual)31303$240Mphila.gov ↗
Kenan LLC144$1.7Mphila.gov ↗ · registry ↗
Philadelphia Lotus LLC243$7.8Mphila.gov ↗ · registry ↗
Fam & Co LLC113$1.9Mphila.gov ↗ · registry ↗
New Penn Valley LLC15$446Kphila.gov ↗ · registry ↗
Vega LLC13$181Kphila.gov ↗ · registry ↗
Taidock (individual)22$92Kphila.gov ↗
1800 N 21st St LLC11$160Kphila.gov ↗ · registry ↗
Sahara Litely LLC11$46Kphila.gov ↗ · registry ↗

The mailing address is where the assessor sends the tax bill — for an LLC, often the closest public record gets to the person behind it. "Registry" searches the owner's name in state incorporation records (OpenCorporates).

House by house

All 61 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

$0$250K$500K201620182020202220242026Block median
Each houseNew build / flipBlock median

Worth a look

Torn down & rebuilt
1831 N 21st St
$32K · demolished in 2022 and rebuilt (2022), then sold for $25K in 2011.
New construction
1856 N 21st St
$370K · Bought for $43K in 2006, built new under a 2020 permit (tax-abated), sold for $75K in 2019.
New construction
1842 N 21st St
$333K · Bought for $85K in 2019, built new under a 2019 permit, sold for $290K in 2020.
New construction
1847 N 21st St
$302K · Bought for $56K in 2017, built new under a 2016 permit, sold for $350K in 2022.
New construction
1829 N 21st St
$232K · built new under a 2016 permit (tax-abated).
New construction
1852 N 21st St
$185K · built new under a 2007 permit (tax-abated).
AddressOwnershipValue & trendBd/BaSq ftBuiltSalesFlags
1800 N 21ST ST ImprovedBought for $90K in 2019. Owner pulled a addition and/or alteration permit in 2020. Investor / LLC $160K —/— 3,564 1915 2
1801 N 21ST ST ImprovedOwner pulled a masonry facade replacement permit in 2020. Owner-occupied $90K —/— 882 1915 0
1802 N 21ST ST History2 L&I violations (2019); 2 L&I violations (2020); 2 L&I violations (2021); L&I violation (2024). Vacant $47K —/— — — 0 tax lien
1803 N 21ST ST ImprovedOwner pulled a alterations permit in 2026. Owner-occupied $135K —/— 1,368 1915 0
1804 N 21ST ST History2 L&I violations (2013); 2 L&I violations (2019); 2 L&I violations (2020); 2 L&I violations (2021). Vacant $47K —/— — — 0 tax lien
1805 N 21ST ST New constructionBought for $21K in 2019, built new under a 2020 permit. Investor / LLC $31K 4/— 1,854 2022 2 tax lien
1806 N 21ST ST New constructionbuilt new under a 2008 permit, sold for $200K in 2022. Absentee individual $92K 2/1 2,220 1915 1
1807 N 21ST ST History4 L&I violations (2011); 6 L&I violations (2012); 2 L&I violations (2013); 2 L&I violations (2024). Vacant $31K —/— — — 0
1808 N 21ST ST ImprovedBought for $5K in 2003. Owner pulled a use permit in 2019. Owner-occupied $237K —/— 2,220 1915 2
1809 N 21ST ST Absentee individual $156K —/— 1,368 1915 0 abated
1810 N 21ST ST History2 L&I violations (2011); 6 L&I violations (2012); 2 L&I violations (2013); sold $16K (2018); L&I violation (2024). Vacant $46K —/— — — 1
1811 N 21ST ST History2 L&I violations (2016); 2 L&I violations (2020); 2 L&I violations (2021); 7 L&I violations (2024). Vacant $32K —/— — — 0
1812 N 21ST ST HistoryL&I violation (2021). Vacant $46K —/— — — 0
1813 N 21ST ST History6 L&I violations (2007); L&I violation (2008); L&I violation (2009); 2 L&I violations (2012). Owner-occupied $177K —/— 1,368 1915 0
1814 N 21ST ST ImprovedOwner pulled a addition and/or alteration permit in 2025. Owner-occupied $185K —/— 2,220 1915 0
1815 N 21ST ST History2 L&I violations (2016); 2 L&I violations (2019); 2 L&I violations (2024); 2 L&I violations (2026). Vacant $32K —/— — — 0 tax lien
1816 N 21ST ST History4 L&I violations (2011); 6 L&I violations (2012); 2 L&I violations (2013); 2 L&I violations (2017). Vacant $46K —/— — — 0 tax lien
1817 N 21ST ST History2 L&I violations (2010); 2 L&I violations (2011); L&I violation (2020); L&I violation (2021). Vacant $32K —/— — — 0
1818 N 21ST ST History6 L&I violations (2012); 2 L&I violations (2013); 2 L&I violations (2017); sold $35K (2019); 8 L&I violations (2019). Vacant $46K —/— — — 1
1819 N 21ST ST HistoryL&I violation (2021); 3 L&I violations (2024). Vacant $32K —/— — — 0
1820 N 21ST ST History6 L&I violations (2012); 2 L&I violations (2013); 2 L&I violations (2017); sold $35K (2019); L&I violation (2021). Vacant $46K —/— — — 1
1821 N 21ST ST HistoryL&I violation (2021). Vacant $32K —/— — — 0
1822 N 21ST ST History6 L&I violations (2012); 2 L&I violations (2013); 2 L&I violations (2017); L&I violation (2021). Vacant $28K —/— — — 0 tax lien
1823 N 21ST ST History2 L&I violations (2010); 4 L&I violations (2011); 4 L&I violations (2012); 3 L&I violations (2024). Vacant $32K —/— — — 0
1824 N 21ST ST Vacant $46K —/— — — 0
1825 N 21ST ST History2 L&I violations (2016); L&I violation (2021); 3 L&I violations (2024). Vacant $32K —/— — — 0
1826 N 21ST ST ImprovedOwner pulled a alterations permit in 2021. Owner-occupied $185K —/— 2,220 1915 0
1827 N 21ST ST ImprovedOwner pulled a electrical permit in 2016. Owner-occupied $135K —/— 1,368 1915 0
1828 N 21ST ST History2 L&I violations (2008); 4 L&I violations (2011); 2 L&I violations (2012); sold $14K (2017); L&I violation (2024). Vacant $46K —/— — — 1 tax lien
1829 N 21ST ST New constructionbuilt new under a 2016 permit (tax-abated). Investor / LLC $232K 5/1 1,724 1915 0 rentedabated
1830 N 21ST ST TradedTraded 2×: $9K in 2014 → $13K in 2017 (+48%). Vacant $46K —/— — — 2 tax lien
1831 N 21ST ST Torn down & rebuiltdemolished in 2022 and rebuilt (2022), then sold for $25K in 2011. Vacant $32K —/— — — 1 tax lien
1832 N 21ST ST History6 L&I violations (2012); 2 L&I violations (2013); 3 L&I violations (2021); L&I violation (2024). Vacant $46K —/— — — 0 tax lien
1833 N 21ST ST History2 L&I violations (2010); 2 L&I violations (2011); 6 L&I violations (2012); 2 L&I violations (2013). Vacant $32K —/— — — 0
1834 N 21ST ST Absentee individual $185K 3/1 2,220 1915 1
1835 N 21ST ST History2 L&I violations (2010); 2 L&I violations (2011); 6 L&I violations (2012); 2 L&I violations (2013). Vacant $32K —/— — — 0 tax lien
1836 N 21ST ST HistoryL&I violation (2021). Vacant $46K —/— — — 0
1837 N 21ST ST Vacant $32K —/— — — 0
1838 N 21ST ST Frequently tradedTraded 3×: $5K in 2002 → $52K in 2008 (+930%). Absentee individual $185K —/— 2,220 1915 3 1 violtax lien
1839 N 21ST ST Renovated & sold onBought for $2K in 2007, major alteration permit in 2016, sold for $128K in 2019 (+6324%). Investor / LLC $206K 5/1 1,728 1915 2 rented
1840 N 21ST ST ImprovedBought for $365K in 2025. Owner pulled a change of use permit in 2023. Investor / LLC $344K 5/3 2,160 1915 1 rented
1841 N 21ST ST Owner-occupied $135K —/— 1,728 1915 0 tax lien
1842 N 21ST ST New constructionBought for $85K in 2019, built new under a 2019 permit, sold for $290K in 2020. Owner-occupied $333K 5/2 2,220 1915 2
1843 N 21ST ST TradedTraded 2×: $12K in 2022 → $38K in 2022 (+222%). Vacant $32K —/— — — 2 tax lien
1844 N 21ST ST History2 L&I violations (2008); 4 L&I violations (2012); 2 L&I violations (2016); 2 L&I violations (2021). Vacant $46K —/— — — 0 tax lien
1845 N 21ST ST ImprovedOwner pulled a addition and/or alterations permit in 2024. Owner-occupied $135K —/— 1,728 1915 0
1846 N 21ST ST History2 L&I violations (2020); 2 L&I violations (2021); 6 L&I violations (2024); 2 L&I violations (2026). Vacant $46K —/— — — 0 tax lien
1847 N 21ST ST New constructionBought for $56K in 2017, built new under a 2016 permit, sold for $350K in 2022. Owner-occupied $302K 4/2 1,728 1915 3
1848 N 21ST ST ImprovedBought for $63K in 2016. Owner pulled a alterations permit in 2024. Investor / LLC $178K 5/4 2,220 1915 2
1849 N 21ST ST ImprovedBought for $5K in 2002. Owner pulled a zoning permit in 2011. Absentee individual $210K —/— 1,728 1915 2 tax lien
1850 N 21ST ST History2 L&I violations (2010); 2 L&I violations (2011); 2 L&I violations (2012); 2 L&I violations (2017). Vacant $46K —/— — — 0
1851 N 21ST ST History2 L&I violations (2013); 2 L&I violations (2015); 2 L&I violations (2016). Vacant $32K —/— — — 0
1852 N 21ST ST New constructionbuilt new under a 2007 permit (tax-abated). Owner-occupied $185K —/— 2,220 1915 0 abated
1853 N 21ST ST ImprovedBought for $5K in 2001. Owner pulled a demolition permit in 2018. Vacant $32K —/— — — 1 tax lien
1854 N 21ST ST ImprovedBought for $43K in 2020. Owner pulled a addition and/or alteration permit in 2023. Absentee individual $94K —/— 2,310 1915 2
1855 N 21ST ST ImprovedBought for $11K in 2011. Owner pulled a city demolition permit in 2025. Investor / LLC $67K —/— 1,728 1915 1
1856 N 21ST ST New constructionBought for $43K in 2006, built new under a 2020 permit (tax-abated), sold for $75K in 2019. Investor / LLC $370K —/— 2,721 1915 2 rentedabated
1857 N 21ST ST ImprovedBought for $5K in 2002. Owner pulled a make safe permit for rp permit in 2024. Absentee individual $206K —/— 1,760 1915 2 tax lien
1858 N 21ST ST ImprovedBought for $50K in 2017. Owner pulled a addition and/or alteration permit in 2024. Investor / LLC $132K —/— 4,503 1915 2
1859 N 21ST ST History2 L&I violations (2018); 2 L&I violations (2020); 2 L&I violations (2021); 8 L&I violations (2024). Vacant $37K —/— — — 0
1861 N 21ST ST ImprovedOwner pulled a addition and/or alteration permit in 2026. Investor / LLC $122K —/— 2,703 1915 0

Neighborhood

Neighborhood income and demographics are coming soon.

Generated 2026-07-08 from public City of Philadelphia records  ·  Download this block's data (CSV)

Where this comes from

City datasets are fetched live from OpenDataPhilly (phl.carto.com) and cached briefly. AI-written passages are generated from these records only and rejected if they state a number the record doesn't hold.