House Ticker treats a home as if it were a publicly traded security, complete with animated price movement. The joke works because property estimates already carry more apparent precision than the underlying market can support.
A SwiftUI prototype that animates a house-value estimate using public AVM and FHFA-style inputs to create stock-ticker behavior.
The aim. Explore the emotional and technical oddity of turning slow, uncertain property estimates into a real-time interface.
01The problem behind the project
The mismatch is the idea: homes do not truly reprice every second, yet people often experience their value through equally artificial point estimates.
Homes do not clear through a continuous exchange. Their value depends on infrequent transactions, local rules, property condition, jurisdictional records, and models with uneven coverage. A second-by-second number is therefore an interface fiction, even when anchored to real public indices.
Homeowners and product designers may enjoy the experiment. Buyers and sellers could be misled if simulation is mistaken for an appraisal.
02How it took shape
SwiftUI, public housing-market data sources, simulated short-term motion, and an agent-assisted prototype workflow.
The SwiftUI prototype combines public AVM- and FHFA-style inputs with simulated short-term motion. Josiah defined the premise and behavior while an agent produced much of the application, making the human-agent dynamic part of the case study.
Josiah conceived the interaction, defined the playful framing, and had an agent build the application.
A working prototype exists, but the moment-to-moment values are illustrative rather than observed market prices.
03What the project means now
The project is strongest when it exposes its own inaccuracy. A broad product would require enormous normalized property coverage, and even then it would not become an appraisal. The public demonstration uses fictional data so delight does not masquerade as financial evidence.
Accurate broad deployment would require enormous jurisdiction-specific property and transaction coverage. It is not an appraisal, investment tool, or live market.
A delightful interface can make uncertainty look more precise, so the fiction has to be labeled as clearly as the feature.
Publish a fictional-data demo with visible confidence ranges and a note on why true real-time home pricing is structurally difficult.