Serious property investing is a research problem before it is a capital problem. Where is building actually accelerating? Is a target over-assessed? Who really owns the parcels around it? ALKARTIS connects Philadelphia's public records so you can answer those questions with evidence instead of hunches — across four live tools.
Every investor works some version of the same loop: find where the market is moving, underwrite a specific deal, and understand the people and portfolios already operating there. Done by hand, that loop means bouncing between the L&I permit site, the OPA assessment roll, licensing and violations searches, and whatever you can piece together about who is behind an LLC. ALKARTIS does the connecting once and keeps every figure sourced, so the loop tightens from days to an afternoon. Here is how the live tools map to each stage — in Philadelphia today.
The best time to underwrite a block is before the comps catch up to it. BuildSignal reads Philadelphia L&I permits and their declared construction valuations as a trend, so you can see where new construction and major renovation are clustering and where permitted investment is accelerating. That is a leading signal of capital flowing in — visible in the permit record well before it prints in sale prices. For an investor, it is a way to source and prioritize submarkets on evidence rather than on where everyone is already bidding.
By the time a neighborhood is obvious in the comps, your margin is gone. The permit record is where the move shows up first — if you are reading it.
Taxes are a permanent line in every pro forma, and in a portfolio they compound. TaxAssessmentIQ works from OPA assessment data so you can check how a target — or every parcel you already hold — is assessed against comparable properties. Where an assessment looks high relative to the surrounding evidence, the tool helps you frame the appeal on sourced comparisons, not a gut feeling. Across a portfolio, systematically catching over-assessments is real recurring yield, and it runs on the same Philadelphia assessment logic ALKARTIS uses everywhere else, so your numbers stay consistent deal to deal.
Ownership in real estate is deliberately fragmented. A single operator can sit behind a dozen LLCs, and understanding who you are buying from, competing with, or partnering with means seeing past that. LandlordEye connects Philadelphia property, licensing, and violations records and resolves them to the owner behind them — so a portfolio scattered across shell LLCs reads as one entity. That matters for diligence (what is this seller's track record with code and licensing?), for competitive mapping (who actually controls this corridor?), and for sourcing (which owners are large enough to approach off-market?). It is public-records research, not surveillance: every link traces back to a checkable source.
Once you own in an area or have a target under watch, the question shifts to what is changing around it. BlockWatcher monitors block-level activity — permits, violations, and other public-record signals — around the addresses you care about. New construction next to a hold can shift your exit; a cluster of violations on the block is a flag worth knowing early. Instead of manually re-checking City sites, you let the record come to you.
A packaged, shareable brief — useful for an investment committee or a lender — is on the way. That is the role ListingIQ's HomeBrief report is being built to fill. It is in development and not yet live, so today the research lives in the four tools above, which is where the underwriting actually happens anyway.
Funds and larger portfolios often want this data inside their own underwriting models. That is possible, but it is not self-serve: API access is part of the Enterprise tier. If you want ALKARTIS feeding your own systems, talk to our team. And the discipline holds at every scale — every figure traces back to a checkable Philadelphia public record, which is exactly what you want when a number has to survive an IC meeting or a lender's questions.
Philadelphia. BuildSignal, TaxAssessmentIQ, LandlordEye, and BlockWatcher all run on live Philadelphia public records now. Additional markets are on the roadmap and come online city by city, but investor research is available for Philadelphia today.
LandlordEye connects Philadelphia property, licensing, and violations records and resolves them to the owner behind them, so holdings spread across multiple LLCs can be seen as one portfolio. It works from public records only, and every link traces back to a checkable source.
Yes. BlockWatcher lets you watch block-level activity — permits, violations, and other public-record signals — around addresses you care about, so new activity near a target or a holding surfaces without you re-checking the City sites by hand.
API access is part of the Enterprise tier — there is no self-serve public API. If you run a fund or a larger portfolio and want ALKARTIS data feeding your own underwriting models, talk to our team about an Enterprise engagement.
Not yet. The ListingIQ HomeBrief report is in development and not yet live. Investor research today runs on the live tools — BuildSignal, TaxAssessmentIQ, LandlordEye, and BlockWatcher.
See how BuildSignal, TaxAssessmentIQ, LandlordEye, and BlockWatcher fit an investor's research loop — or how a fund pulls the data into its own models. Our team can walk you through it.