Real estate markets move through cycles that broadly include recovery, expansion, hyper-supply, and recession phases. The absorption rate measures how quickly available properties sell in a market, while months of inventory estimates how long current listings would take to sell at the present pace. When inventory is low and demand high, conditions favor a seller's market, often producing multiple offers. High inventory and slower sales define a buyer's market, and roughly equal supply and demand produce a balanced market. Over time, properties may appreciate, gaining value, or depreciate, losing it.
Affordability is a central concern in any housing market. Housing affordability examines whether a typical household income can afford typical local housing, often measured through the price-to-income ratio. The decision to buy or rent involves comparing total ownership cost to renting over a given time horizon—the rent-vs-buy calculation—while keeping in mind opportunity cost, or what else the down payment could have earned. Buying builds equity but requires capital, while renting offers flexibility. Buyers should avoid becoming house poor, a situation in which housing costs consume so much income that little remains for other goals. Lenders often apply the 28/36 rule: housing costs \(\leq 28\%\) of gross income, and total debt \(\leq 36\%\). Borrowing magnifies both gains and losses, so leverage risk is a constant consideration for those using debt to amplify investment returns.
Taxes and insurance are recurring costs and planning considerations for property owners. Property tax is an annual tax based on a property's assessed value, calculated using the mill rate. Many homeowners benefit from a homestead exemption, which reduces the taxable value of an owner-occupied primary residence. Capital gains tax applies to profits from the sale of property, but the primary residence exclusion allows single filers to exclude up to $250,000 and married couples up to $500,000 of gain on the sale of a primary home. Investment property owners may take a depreciation deduction for the wear of buildings and use a 1031 exchange to defer capital gains by swapping one investment property for another, though recapture provisions may require some depreciation deductions to be reversed at sale. Insurance protects against a range of risks. Homeowner's (property) insurance covers damage from fire, theft, and weather, and is typically required by mortgage lenders. Flood insurance covers water damage from flooding and is often required in FEMA-designated flood zones. Umbrella insurance provides additional liability coverage beyond standard home and auto policies.
Several broader forces are reshaping real estate today. Climate risk—including flooding, wildfire, and extreme heat—is already affecting property values, particularly in coastal areas where sea level rise is driving up insurance costs and reshaping prices. Historic discriminatory practices such as redlining (denying services in certain neighborhoods) and blockbusting (inducing panic sales by spreading fear of demographic change) have contributed to a lasting housing wealth gap and a broader wealth gap across demographics. Gentrification, in which wealthier residents move into lower-income areas and often raise costs, is another recurring phenomenon. Even as these dynamics unfold, the maxim "location, location, location" remains true: the desirability of a school district, walkability, and access to transit-oriented development (TOD)—compact, walkable projects near public transit—continue to drive demand. Sustainability is increasingly important, with green building certifications such as LEED, ENERGY STAR, and Passive House rewarding energy efficiency, and features like solar panels offering a return on investment that varies with cost, location, incentives, and electricity prices.