New construction
Why it mattersBought for $500 in 2003, built new under a 2007 permit, sold for $500 in 2005.
View supporting records →House report
3 bd · 1 ba · 2 stories · 964 sqft · RSA5 · built 1925
Investor / LLC · assessed $260K · sold 3×. On the 400 block of N Napa St.
These curated questions are free. Choose one to open its cited answer.

Bought for $500 in 2003, built new under a 2007 permit, sold for $500 in 2005.
View supporting records →Early patterns mined across this property's dated public records. Each flag shows what triggered it and where the inference stops.
The assessment jumped 37% in 2027, but no matching permit appears in the property timeline.
Evidence: assessment moved from $190,000 to $260,200 · no permit shown in 2026-2028
Limit: Not proof of unpermitted work; reassessment, corrected data, or a permit under another parcel can also explain it.
Transparent record rules, not a machine-learning forecast. A signal is a prompt to verify the cited record, not a prediction or allegation.
The record, translated into moves — what a buyer, the owner, and a landlord would each want to check next under Philadelphia's actual rules.
Federal law requires a lead-paint disclosure at sale for any pre-1978 home. If it will be rented, Philadelphia also requires a lead-safe or lead-free certificate before a rental license can issue.
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.
The most recent recorded deed moved for nominal consideration, within one family. That is where tangled-title problems live — budget a real title search. (Occupants untangling an inherited deed can get help from the city's Tangled Title Fund.)
Built 1925: every rental unit needs a lead-safe or lead-free certificate on file with the City. Without one: fines up to $2,000/day per unit, tenants may withhold rent, courts can order rent refunded — and no eviction will stand.
Renewal requires city tax clearance and zero open L&I violations on the property. A lapsed license suspends the right to collect rent or evict.
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.
Ncgc LLC · corporate / LLC owner
• Owns 2 properties across Philadelphia under this name, assessed at $592K combined
• Holds an active rental license for this address
• The last transfer was a nominal/family deed, not an open-market sale
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.
Value vs. the block, over time — sales, permits & L&I events marked on the line
Bought for $500 in 2003, built new under a 2007 permit, sold for $500 in 2005.
Flags: active rental license · 1 zoning/board appeal on record · long-held within one family. Informational only — not investment advice or a consumer report (FCRA).
The city assessor's field record — the physical spec sheet behind the assessed number.
OPA field-assessment attributes. Condition and grade are the assessor's codes, not an inspection.
What owning 427 N Napa 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.
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.
427 N Napa St sits on the 400 block of N Napa St. Open the block report to compare its parcels, ownership and public-record history.
See the whole block →Next door: 425 N Napa St · 429 N Napa St
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)