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

Who owns your block

800 block of Mercer St

A mostly owner-occupied block: 86% of homes are lived in by their owners, with 2 homes behind $12,999 on taxes.

The typical home here is up 84% since 2016, now about $273K. Property taxes are climbing about 6% a year and the increases are speeding up.

Every parcel on the block, colored by who owns it. Tap a parcel for the owner and its city record.
The readAI analysis · from the figures below
  1. 01
    Appreciation

    The block trades at 1.2x the city median but appreciates 0.8 points per year slower than the city overall.

  2. 02
    Taxes

    Two homes forgo $63K in annual taxes while two other homes carry $13K in back taxes owed.

  3. 03
    Turnover

    Fifteen of 66 homes have never sold since 2000, yet the 51 that did traded an average of twice each.

By the Numbers

Median value
$273K
$269K–$405K
ZIP median $334K
Price / sq ft
$292
typical home
city median $177
Vs. Philadelphia
1.2×
the city median
city $223K
Recent sale
$385K
7 sold in 2yr
assessed $273K
Tax / yr
$3K
typical · up to $5K
city ≈$3K/yr
Tax abatements
2 of 66
$63K/yr forgone
Owner-occupied
86%
57 of 66
city 41%
Rentals
14%
9 licensed
city 15% of homes
Open violations
0
none on record
▼ block 0% · city 5%
Back taxes
$13K
2 of 66 behind
▼ block 3% · city 9%

How fast it's moving

1 year
-7%
value · tax −$83
5 years
+40%
value · tax +$1K
10 years
+84%
value · tax +$2K

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 $273K — about 1.2× the citywide median, and below the ZIP 19125 median of $334K. The same block, read against everyone else in the ZIP 19125 and across Philadelphia.

This blockZIP 19125Philadelphia
Median home value$273K$334K$223K
Owner-occupied62%32%41%

Safety & quality of life

Within 200 metres of the block over the last 12 months: 67 reported crimes (18 violent) and 308 resident 311 requests to the city.

Crimes · 12mo
67
18 violent · within 200m
311 requests · 12mo
308
40 still open

Most reported crimes

Other Assaults13
Thefts12
Vandalism/Criminal Mischief10
All Other Offenses6
Theft from Vehicle6
Fraud5

Top 311 complaints

Rubbish/Recyclable Material Collection75
Salting69
Abandoned Vehicle31
Maintenance Complaint27
Shoveling13
Illegal Dumping12

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 · K-8
Alexander Adaire
1300 E Palmer St · 451 students
High · 6-12
Penn Treaty HS
600 E Thompson St · 345 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$250K$500K$273K2016: $149K2017: $149K2018: $149K2019: $181K2020: $195K2021: $195K2022: $195K2023: $224K2024: $224K2025: $294K2026: $294K2027: $273K2016202020232027

▲ +84% since 2016

Estimated property tax · per home, per year

$0$2,500$5,000$3,4442016: $1,7952017: $1,7952018: $2,0132019: $2,2032020: $2,4132021: $2,3472022: $2,4132023: $2,3452024: $2,6272025: $3,3392026: $3,5272027: $3,4442016202020232027

▲ +92% since 2016 · ~+6%/yr

2
2 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 $62,784 a year off the tax roll. Read the tax figures with that in mind.

Who really pays — effective tax rate, one dot per home

1.40% — the statutory rate0%0.4%0.8%1.2%
$2,552pays now $5,365at the full rate

837 Mercer St is assessed at $383K but pays $2,552 a year — about 48% of the $5,365 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 lagged the Philadelphia market, compounding +5.7% a year against the city's 6.5%.

Indexed performance · this block vs. the Philadelphia market

9510025020162019202220252027This block 184 Philadelphia 201

Rebased to 100 in 2016, like a stock against its index. $100 in the typical home here would be worth $184 today versus $201 across Philadelphia — this block trailed the market.

Annualized return
+5.7%/yr
price, since 2016
Total appreciation
+84%
since 2016
Net rental yield
8.1%
est., after tax carry
Total return
+13.8%/yr
price + net rent
Real return
+10.8%/yr
after ~3% inflation
vs. Philadelphia
-0.8 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 107 arm's-length sales since 2000. The typical home has sold 2 times in that window, while 15 have not changed hands at all.

Every recorded sale · price & date

$0$500K$1.0M2004201020162022
107arm's-length sales since 2000
2times the typical home has sold
6most sales for a single property
15homes never sold in the window

Who owns it

Ownership of 66 parcels

Owner-occupied: 57Investor / LLC: 1Absentee individual: 8 66parcels
  • Owner-occupied 57
  • Investor / LLC 1
  • Absentee individual 8

Value distribution today

36 parcels9 parcels2 parcels5 parcels1 parcels4 parcels9 parcels
$269K$378K+

The block's largest owner, Jordan Michael J, carries 1 open violation across 21 properties it owns around the city.

OwnerOn blockOwns citywidePortfolio valueSource
Michael J Jordan (individual)221$5.2Mphila.gov ↗
265 93rd Street Llc14$746Kphila.gov ↗
Ken Group Llc11$269Kphila.gov ↗
Stonebridge Properties L11$269Kphila.gov ↗

House by house

All 66 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

New construction
837 Mercer St
$383K · Bought for $177K in 2024, built new (tax-abated), sold for $405K in 2024.
Frequently traded
863 Mercer St
$383K · Traded 4×: $50K in 2003 → $385K in 2024 (+670%).
Frequently traded
872 Mercer St
$365K · Traded 4×: $100K in 2007 → $214K in 2014 (+114%).
Frequently traded
810 Mercer St
$362K · Traded 4×: $55K in 2001 → $425K in 2025 (+673%).
Frequently traded
829 Mercer St
$347K · Traded 3×: $182K in 2009 → $290K in 2021 (+59%).
Frequently traded
831 Mercer St
$347K · Traded 3×: $59K in 2005 → $170K in 2006 (+188%).
AddressOwnershipValue & trendBd/BaSq ftBuiltSalesFlags
805 MERCER ST TradedTraded 2×: $130K in 2016 → $355K in 2019 (+173%). Owner-occupied $370K 3/1 1,058 1925 2
807 MERCER ST TradedTraded 2×: $90K in 2003 → $298K in 2023 (+231%). Owner-occupied $269K 3/1 920 1925 2
809 MERCER ST Owner-occupied $269K 3/1 920 1925 1
810 MERCER ST Frequently tradedTraded 4×: $55K in 2001 → $425K in 2025 (+673%). Owner-occupied $362K 3/1 1,170 1925 4
811 MERCER ST TradedTraded 2×: $100K in 2006 → $135K in 2007 (+35%). Owner-occupied $288K 3/1 920 1925 2
812 MERCER ST Owner-occupied $269K 3/1 920 1925 0
813 MERCER ST Owner-occupied $269K 3/1 920 1925 0
814 MERCER ST Absentee individual $288K 3/1 920 1925 1 rented
815 MERCER ST Owner-occupied $269K 3/1 920 1925 1
816 MERCER ST Owner-occupied $269K 3/1 920 1925 1
817 MERCER ST TradedTraded 2×: $127K in 2011 → $349K in 2022 (+176%). Owner-occupied $269K 3/1 920 1925 2
818 MERCER ST Investor / LLC $269K 3/1 920 1925 0
819 MERCER ST Frequently tradedTraded 3×: $30K in 2004 → $300K in 2020 (+900%). Owner-occupied $323K 2/1 920 1940 3
820 MERCER ST TradedTraded 2×: $190K in 2022 → $430K in 2023 (+126%). Owner-occupied $383K 2/3 920 1925 2
821 MERCER ST Owner-occupied $269K 3/1 920 1925 0
822 MERCER ST TradedTraded 2×: $50K in 2002 → $161K in 2006 (+225%). Owner-occupied $269K 3/1 920 1925 2 rented
823 MERCER ST TradedTraded 2×: $210K in 2025 → $505K in 2026 (+140%). Owner-occupied $269K 2/2 1,028 1925 2
824 MERCER ST TradedTraded 2×: $60K in 2015 → $228K in 2015 (+278%). Owner-occupied $269K 3/1 920 1925 2
825 MERCER ST Owner-occupied $310K 3/1 1,074 1925 0
826 MERCER ST TradedTraded 2×: $150K in 2006 → $231K in 2014 (+54%). Owner-occupied $368K 3/1 1,048 1925 2
827 MERCER ST TradedTraded 2×: $15K in 2001 → $200K in 2006 (+1233%). Owner-occupied $269K 3/1 920 1925 2
828 MERCER ST TradedTraded 2×: $130K in 2007 → $360K in 2025 (+177%). Owner-occupied $269K 3/1 1,040 1925 2
829 MERCER ST Frequently tradedTraded 3×: $182K in 2009 → $290K in 2021 (+59%). Owner-occupied $347K 3/1 920 1925 3
830 MERCER ST Owner-occupied $324K 3/1 920 1925 1
831 MERCER ST Frequently tradedTraded 3×: $59K in 2005 → $170K in 2006 (+188%). Owner-occupied $347K 3/1 920 1925 3
832 MERCER ST Absentee individual $269K 3/1 920 1925 1 rented
833 MERCER ST Owner-occupied $269K 3/1 920 1925 0
834 MERCER ST Owner-occupied $269K 3/1 920 1925 0
835 MERCER ST TradedTraded 2×: $85K in 2015 → $295K in 2023 (+247%). Owner-occupied $347K 3/1 920 1925 2
836 MERCER ST Frequently tradedTraded 3×: $42K in 2002 → $220K in 2019 (+424%). Absentee individual $300K 3/1 1,160 1925 3
837 MERCER ST New constructionBought for $177K in 2024, built new (tax-abated), sold for $405K in 2024. Owner-occupied $383K 2/2 920 1925 2 abatedtax lien
838 MERCER ST TradedTraded 2×: $160K in 2014 → $345K in 2021 (+116%). Owner-occupied $288K 3/1 920 1925 2
839 MERCER ST Owner-occupied $269K 3/1 920 1925 0
840 MERCER ST TradedTraded 2×: $112K in 2004 → $182K in 2008 (+63%). Owner-occupied $324K 3/1 920 1925 2 rented
841 MERCER ST Owner-occupied $269K 3/1 920 1925 0
842 MERCER ST Frequently tradedTraded 3×: $235K in 2017 → $325K in 2021 (+38%). Owner-occupied $324K 3/1 920 1925 3
843 MERCER ST TradedTraded 2×: $140K in 2010 → $235K in 2017 (+68%). Absentee individual $324K 3/1 920 1925 2 rented
844 MERCER ST Frequently tradedTraded 3×: $163K in 2006 → $320K in 2022 (+97%). Owner-occupied $269K 3/1 920 1925 3
845 MERCER ST TradedTraded 2×: $110K in 2018 → $289K in 2018 (+163%). Owner-occupied $405K 2/1 1,036 1925 2 rented
846 MERCER ST Owner-occupied $269K 3/1 920 1925 0
847 MERCER ST TradedTraded 2×: $144K in 2014 → $312K in 2026 (+116%). Owner-occupied $278K 3/1 986 1925 2
848 MERCER ST Frequently tradedTraded 3×: $55K in 2004 → $288K in 2021 (+424%). Owner-occupied $288K 3/1 920 1925 3
849 MERCER ST Frequently tradedTraded 3×: $95K in 2006 → $283K in 2018 (+197%). Owner-occupied $304K 3/1 1,030 1925 3
850 MERCER ST Owner-occupied $283K 3/1 1,030 1925 1
851 MERCER ST TradedTraded 2×: $140K in 2010 → $217K in 2021 (+55%). Absentee individual $269K 3/1 920 1925 2
852 MERCER ST TradedTraded 2×: $184K in 2014 → $320K in 2021 (+74%). Absentee individual $378K 3/1 1,104 1925 2 rented
853 MERCER ST Absentee individual $269K 3/1 920 1925 1
854 MERCER ST Owner-occupied $269K 3/1 920 1925 1
855 MERCER ST Owner-occupied $269K 3/1 920 1925 1
856 MERCER ST Owner-occupied $269K 3/1 920 1925 0
857 MERCER ST Frequently tradedTraded 4×: $50K in 2003 → $315K in 2021 (+530%). Owner-occupied $288K 3/1 920 1925 4
858 MERCER ST Historysold $147K (2006); 2 L&I violations (2014). Owner-occupied $288K 3/1 920 1925 1 rented
859 MERCER ST TradedTraded 2×: $41K in 2000 → $205K in 2020 (+406%). Owner-occupied $288K 3/1 920 1925 2
860 MERCER ST Owner-occupied $293K 3/1 1,102 1925 1
861 MERCER ST Owner-occupied $269K 3/1 920 1925 1
862 MERCER ST Owner-occupied $269K 3/1 920 1925 0
863 MERCER ST Frequently tradedTraded 4×: $50K in 2003 → $385K in 2024 (+670%). Owner-occupied $383K 2/2 920 1925 4
864 MERCER ST Frequently tradedTraded 6×: $90K in 2004 → $310K in 2019 (+244%). Owner-occupied $347K 3/1 920 1925 6
865 MERCER ST Owner-occupied $269K 3/1 920 1925 0
866 MERCER ST Owner-occupied $280K 3/1 1,000 1925 1
867 MERCER ST Owner-occupied $269K 3/1 920 1925 1
868 MERCER ST TradedTraded 2×: $14K in 2000 → $16K in 2000 (+17%). Absentee individual $269K 3/1 920 1925 2 rented
869 MERCER ST History2 L&I violations (2025). Owner-occupied $269K 3/1 934 1925 0 tax lien
870 MERCER ST Owner-occupied $269K 3/1 920 1925 0 abated
872 MERCER ST Frequently tradedTraded 4×: $100K in 2007 → $214K in 2014 (+114%). Owner-occupied $365K 3/1 1,028 1925 4
874 MERCER ST TradedTraded 2×: $228K in 2010 → $228K in 2010 (+0%). Owner-occupied $345K 2/1 1,260 1920 2

Neighborhood

Median income
$113K
household
Own vs. rent
53%
owner-occupied
Median age
34
residents
Median rent
$2K
gross monthly

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.