The Block Report

House report

1728 N Lambert St

4 bd · 4 ba · 3 stories · 1,852 sqft · RSA5 · built 2019

Owner-occupied · assessed $420K · sold 2×. On the 1700 block of N Lambert St.

Property summary

Assessment$420KCity assessed value Last sale$365KRecorded 2019 Est. annual tax$1K/yearAssessment × 1.3998% Tax delinquency—Snapshot unavailable Permits6Dated events in report ViolationsNone openNone open when assembled

“Open” reflects records available then historical records keep their source dates estimates are labeled

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Street view of 1728 N Lambert St
From the street — imagery © Google
From above — imagery © Esri, Maxar

What stands out

From the public record
Finding

New construction

Why it matters

Bought for $30K in 2018, built new under a 2018 permit (tax-abated), sold for $365K in 2019.

View supporting records →

Records to verify together

Rule-based groupings across this property's dated public records. Each flag shows the records that belong in the same verification step and where the inference stops.

Dated record flagAssessment/permit mismatch

The assessment jumped 3550% in 2020, but no matching permit appears in the property timeline.

Evidence: assessment moved from $10,000 to $365,000 · no permit shown in 2019-2021

Limit: Not proof of unpermitted work; reassessment, corrected data, or a permit under another parcel can also explain it.

Transparent record rules, not a score or forecast. Each flag is a prompt to verify the cited records, not a prediction or allegation.

What to do with this

The record, translated into moves — what a buyer, the owner, and a landlord would each want to check next under Philadelphia's actual rules.

If you’re buying

The current tax estimate is temporary

The taxable assessment implies about $1,176/yr under a 10-year abatement. It jumps to about $5,885/yr in 2030 — $4,709/yr more. Underwrite the post-abatement estimate and verify the actual bill with Revenue.

Zoned RSA5: one household by right

Single-family rowhouse (the classic Philly row). Converting to a duplex or apartments needs a use variance the zoning board rarely grants — Pennsylvania courts require a physical hardship of the lot itself, and economics alone do not qualify.

If you own it

When the abatement ends, file for Homestead

An abated home cannot also take the Homestead Exemption. From 2030 it can — knocking about $1,400/yr off the full bill.

Construction next door (1727 N Lambert St, 2025)

Excavation deeper than 5 feet, or within 10 feet of an adjacent structure, legally requires the developer to survey neighboring homes first and give owners 10 days' written notice. Insist on the pre-construction survey — it is your evidence if cracks appear.

Derived from this house's public records and the city's rules as of 2026 (abatement ordinance, Homestead, rental licensing, lead certification, L&I process, excavation protections). Informational only — not legal, tax, or investment advice.

The investment read

How this house has moved and where it's pointed: the city's assessed value (not a listing price) over 12 years, charted against its block; appreciation is that history's pace, and the 5-year figure simply extends it. Yield estimates rent-vs-price from area rents. Ask the record to dig into any number.

Assessed value
$420K
built 2019
Price / sq ft
$227
block $111 · above block
Appreciation
+9242%
+51%/yr, city 6.5%
In 5 years (~2031)
~$431K
+51%/yr own pace held 5 yrs — extrapolation, not a forecast
Est. tax / yr
$1K
0.28% effective, abated
Jun 2022 tax snapshot
—
Gross yield
2.5%
≈$863/mo rent
Times sold
2

Value vs. the block, over time — sales, permits & L&I events marked on the line

$0$250K$500KBefore this chart — 2014: 2 L&I violations 2015: 4 L&I violations2016: 2 L&I violations2018: Land $30K 2018: 2 L&I violations 2018: Zoning/use 2018: New construction 2018: Electrical 2018: Mechanical 2018: Suppression 2018: Plumbing2019: Sold $365K$420K201620222027
This houseBlock median & rangeSaleLand buyL&I violationPermit

The paper trail

New construction

Bought for $30K in 2018, built new under a 2018 permit (tax-abated), sold for $365K in 2019.

  1. 2014 2 L&I violationsL&I
  2. 2015 4 L&I violationsL&I
  3. 2016 2 L&I violationsL&I
  4. 2018 $30KLand buy2 L&I violationsL&IZoning/usePermitNew constructionPermitElectricalPermitMechanicalPermitSuppressionPermitPlumbingPermit
  5. 2019 $365KSold

Flags: tax-abated — the bill lags real value. Informational only — not investment advice or a consumer report (FCRA).

The abatement clock

This house’s taxable assessment implies about $1,176/yr under a 10-year tax abatement. In 2030 the assessment-based estimate reaches ~$5,885/yr — a step up of $4,709/yr, 3 assessment years out. Drag the slider.

2016: ~$63/yr2017: ~$140/yr2018: ~$140/yr2019: ~$140/yr2020: ~$1,482/yr2021: ~$1,482/yr2022: ~$1,482/yr2023: ~$1,175/yr2024: ~$1,175/yr2025: ~$1,177/yr2026: ~$1,177/yr2027: ~$1,176/yr2028: ~$1,176/yr (projected)2029: ~$1,176/yr (projected)2030: ~$5,885/yr (projected)2031: ~$5,885/yr (projected)201620302031
2027~$1,176/yrestimated from assessment

now: ($420,400 assessed − $336,388 abated) × 1.3998% ≈ $1,176/yr 2030: $420,400 assessed × 1.3998% ≈ $5,885/yr Flat 100% exemption (pre-2022 program, started 2020), then the cliff — reassessments move both lines. After expiry an owner-occupant can claim the Homestead Exemption (~$1,400/yr off); an abated home can't hold both.

The house, on paper

The city assessor's field record — the physical spec sheet behind the assessed number.

Bedrooms
4
Bathrooms
4
Stories
3
Interior
1,852 sqft
livable area
Lot
840 sqft
Basement
Full, finished
city code A
Heat
Forced hot air
city code A
Central air
Yes
Exterior condition
Newer construction
city code 1
Newer construction
Interior condition
Newer construction
city code 1
Newer construction
Quality grade
B
assessor's grade
Zoning
RSA5
city zoning code

OPA field-assessment attributes. Condition and grade are the assessor's codes, not an inspection.

Run the numbers

What owning 1728 N Lambert St takes, at your price and your rate. Taxes start with an annual estimate from the City’s taxable assessment, not a current bill or balance; rent starts at the area median. Assessed value is not an asking price — set the price slider to the real one.

$420K
20%
6.875%
$875/mo

When this house last sold (2019) a 30-year mortgage ran about 3.94% — Freddie Mac's average that year.

Mortgage
—
P&I · 30-yr fixed
All-in monthly
—
+ taxes & insurance
Cash to close
—
down + ~4% costs
Cash flow
—
rent − all costs · /mo
Cap rate
—
NOI ÷ price
Cash-on-cash
—
year-1 return on cash in

Estimates for orientation, not advice. Assumes a 30-year fixed loan, $1,400/yr insurance, 1% of price/yr maintenance; taxes from this parcel's record (with the abatement toggle above).

Block context

1728 N Lambert St sits on the 1700 block of N Lambert St. Open the block report to compare its parcels, ownership and public-record history.

See the whole block →

Next door: 1726 N Lambert St  ·  1730 N Lambert St

Where this comes from
Methodology & freshness

Available City datasets are queried from OpenDataPhilly (phl.carto.com), then reports are cached and refreshed on a rolling schedule. Source dates vary: the parcel-level tax-delinquency snapshot is June 2022 and the separate detailed tax ledger ends in 2016, so neither establishes today’s balance. Other dossiers re-pull on view once stale, and citywide benchmarks recompute weekly. AI-written passages are generated from these records only and rejected if they state a number the record doesn't hold.

Official city record ↗  ·  L&I history ↗  ·  See the whole block  ·  Download this record (JSON)