Who owns your block
1100 block of S 12th St
A mixed-ownership block: 52% owner-occupied, 19% investor-held, with 1 home behind $105 on taxes.
The typical home here is up 115% since 2016, now about $473K. Property taxes are climbing about 7% 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 $473K — about 2.1× the citywide median, and in line with the ZIP 19147 median of $461K. The same block, read against everyone else in the ZIP 19147 and across Philadelphia.
| This block | ZIP 19147 | Philadelphia | |
|---|---|---|---|
| Median home value | $473K | $461K | $223K |
| Owner-occupied | 23% | 38% | 41% |
Safety & quality of life
Within 200 metres of the block over the last 12 months: 82 reported crimes (20 violent) and 316 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
- $473K typical home, up +115% since 2016
- Tax bill $2,865 to $5,885 a year, +7%/yr and compounding
- Whole block: $17M assessed, $187,910/yr to the city, about $6,062 per home
Median assessed value · 2016–2027
▲ +115% since 2016
Estimated property tax · per home, per year
▲ +105% since 2016 · ~+7%/yr
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:
- 1116 S 12th Sttax-abated new construction0.32%$6,841/yr on $2.1M
- 1153 S 12th Sttax-abated new construction0.32%$1,579/yr on $495K
- 1158 S 12th Sttax-abated new construction0.32%$1,289/yr on $398K
- 1165 S 12th Sttax-abated new construction0.45%$4,374/yr on $962K
- 1129 S 12th Stexemption1.05%$4,216/yr on $401K
- …and 6 more paying under the full rate — the gold-ringed bubbles in the makeup chart
The starkest example: 1116 S 12th St is assessed at $2.1M but pays $6,841 a year — about 23% of the $30,075 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 +7.2% 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 $215 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 36 arm's-length sales since 1999. The typical home has sold 1 time in that window, while 11 have not changed hands at all.
Every recorded sale · price & date
Who owns it
Ownership of 31 parcels
- Owner-occupied 16
- Investor / LLC 5
- Absentee individual 10
Value distribution today
The block's largest owner, Mortelliti Kristen Tr, carries 2 open violations across 33 properties it owns around the city.
| Owner | On block | Owns citywide | Portfolio value | Source |
|---|---|---|---|---|
| Mortelliti Kristen Tr (individual) | 2 | 33 | $13M | phila.gov ↗ |
| Rock Realty Group LLC | 1 | 8 | $1.8M | phila.gov ↗ · registry ↗ |
| 1118 Twelve Street LLC | 2 | 4 | $2.8M | phila.gov ↗ · registry ↗ |
| 1120 Realty LLC | 1 | 1 | $657K | phila.gov ↗ · registry ↗ |
| Acg 1150 S 12th LLC | 1 | 1 | $657K | phila.gov ↗ · registry ↗ |
| Acg 1152 12th Street LLC | 1 | 1 | $420K | phila.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 31 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 |
|---|---|---|---|---|---|---|---|
| 1116 S 12TH ST New constructionBought for $75K in 2021, built new under a 2022 permit (tax-abated). | Investor / LLC | $2.1M | —/— | 2,414 | 2023 | 2 | rentedabated |
| 1118 S 12TH ST ImprovedBought for $650K in 2016. Owner pulled a use permit in 2016. | Investor / LLC | $435K | —/— | 2,720 | 1925 | 2 | rented |
| 1120-24 S 12TH ST ImprovedOwner pulled a use permit in 2016. | Investor / LLC | $657K | —/— | 6,080 | 1925 | 0 | |
| 1129 S 12TH ST Renovated & sold onBought for $285K in 2021, addition and/or alteration permit in 2022, sold for $565K in 2026 (+98%). | Owner-occupied | $401K | 3/2 | 1,512 | 1915 | 2 | |
| 1131 S 12TH ST ImprovedOwner pulled a fast form building permit in 2007. | Absentee individual | $299K | —/— | 1,512 | 1915 | 0 | |
| 1140 S 12TH ST Renovated & sold onBought for $241K in 2013, zoning permit in 2013, sold for $769K in 2018 (+219%). | Owner-occupied | $988K | 4/3 | 2,832 | 1920 | 2 | |
| 1142 S 12TH ST ImprovedBought for $61K in 1999. Owner pulled a alterations permit in 2020. | Absentee individual | $344K | —/— | 1,092 | 1920 | 2 | rented |
| 1144 S 12TH ST HistoryL&I violation (2022). | Investor / LLC | $297K | —/— | 1,476 | 1920 | 0 | rented |
| 1146 S 12TH ST ImprovedBought for $25K in 2001. Owner pulled a plumbing permit in 2017. | Owner-occupied | $423K | —/— | 1,424 | 1915 | 2 | |
| 1148 S 12TH ST Frequently tradedTraded 4×: $130K in 2005 → $458K in 2025 (+252%). | Owner-occupied | $404K | 3/1 | 1,424 | 1915 | 4 | |
| 1149 S 12TH ST ImprovedBought for $85K in 2000. Owner pulled a use permit in 2015. | Absentee individual | $417K | —/— | 2,605 | 1915 | 1 | |
| 1150 S 12TH ST Renovated & sold onBought for $280K in 2008, electrical permit in 2013, sold for $500K in 2017 (+79%). | Investor / LLC | $657K | —/— | 1,700 | 1915 | 3 | |
| 1151 S 12TH ST | Absentee individual | $524K | —/— | 1,892 | 1915 | 0 | rented |
| 1152 S 12TH ST ImprovedOwner pulled a addition and/or alteration permit in 2023. | Owner-occupied | $420K | —/— | 2,628 | 1915 | 1 | rented |
| 1153 S 12TH ST New constructionbuilt new under a 2022 permit (tax-abated). | Owner-occupied | $495K | —/— | 1,983 | 1915 | 0 | abated |
| 1154 S 12TH ST | Owner-occupied | $333K | 4/1 | 1,859 | 1915 | 0 | |
| 1155 S 12TH ST New constructionbuilt new under a 2021 permit, sold for $429K in 2021. | Owner-occupied | $646K | 5/2 | 2,009 | 1915 | 1 | |
| 1156 S 12TH ST | Owner-occupied | $479K | —/— | 1,859 | 1915 | 0 | |
| 1157 S 12TH ST New constructionbuilt new under a 2012 permit, sold for $388K in 2021. | Owner-occupied | $532K | 3/3 | 2,009 | 1915 | 1 | rented |
| 1158 S 12TH ST New constructionbuilt new under a 2026 permit (tax-abated). | Owner-occupied | $398K | —/— | 1,287 | 1915 | 0 | abated |
| 1159 S 12TH ST ImprovedBought for $450K in 2023. Owner pulled a addition and/or alterations permit in 2024. | Absentee individual | $525K | —/— | 2,535 | 1915 | 1 | rentedtax lien |
| 1160 S 12TH ST | Owner-occupied | $517K | —/— | 2,121 | 1915 | 0 | |
| 1161 S 12TH ST Renovated & sold onBought for $330K in 2016, use permit in 2017, sold for $460K in 2019 (+39%). | Absentee individual | $464K | —/— | 1,827 | 1915 | 2 | rented |
| 1163 S 12TH ST ImprovedBought for $285K in 2018. Owner pulled a electrical permit in 2018. | Absentee individual | $275K | 5/4 | 1,899 | 1915 | 1 | |
| 1165 S 12TH ST New constructionBought for $375K in 2017, built new under a 2018 permit (tax-abated), sold for $975K in 2023. | Owner-occupied | $962K | 4/4 | 2,862 | 1915 | 3 | abated |
| 1167 S 12TH ST ImprovedBought for $71K in 2002. Owner pulled a plumbing permit in 2008. | Absentee individual | $630K | —/— | 2,268 | 1915 | 2 | |
| 1169 S 12TH ST | Absentee individual | $418K | —/— | 1,488 | 1915 | 0 | rented |
| 1171 S 12TH ST TradedTraded 2×: $110K in 2004 → $339K in 2005 (+208%). | Absentee individual | $451K | —/— | 1,440 | 1915 | 2 | rented |
| 1173 S 12TH ST New constructionbuilt new under a 2011 permit, sold for $89K in 2000. | Owner-occupied | $623K | —/— | 2,020 | 1915 | 1 | |
| 1175 S 12TH ST ImprovedOwner pulled a mechanical permit in 2012. | Owner-occupied | $473K | —/— | 1,760 | 1915 | 0 | |
| 1177 S 12TH ST New constructionbuilt new under a 2018 permit, sold for $420K in 2025. | Owner-occupied | $487K | 3/2 | 1,230 | 1915 | 1 |
Neighborhood
Neighborhood income and demographics are coming soon.
First time here?
This is the 1100 block of S 12th St,
on paper.
31 homes. Every deed, permit, L&I violation, tax bill and sale the city has on file — one report.
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Who owns what, what they paid, what they built, what they owe. Scroll and it's all here — the paid part is not the data.
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Generated 2026-07-08 from public City of Philadelphia records · Download this block's data (CSV)