Value Principles & Characteristics
~11 min read · Apply substitution, contribution, conformity and the DUST characteristics of value.
Before any appraisal math comes the vocabulary of value: what makes property valuable (DUST), and the economic principles — substitution above all — that every valuation approach silently applies.
Value and its prerequisites
Market value is the most probable price a property should bring in a competitive, open market — informed parties, arm's length, no duress — distinct from price (what someone actually paid) and cost (what it took to build). For anything to have value it needs DUST: Demand (desire backed by purchasing power), Utility (usefulness), Scarcity (limited supply), Transferability (conveyable title).
- Market value ≠ price paid ≠ cost to build
- DUST: Demand, Utility, Scarcity, Transferability
- Arm's-length, informed, undressed market defines 'most probable price'
The core principles
Substitution: a buyer pays no more than the cost of an equally desirable substitute — the engine of the sales-comparison approach. Anticipation: value reflects expected FUTURE benefits — the engine of the income approach. Contribution: a feature is worth what it ADDS to value, not what it cost (the $90k pool adding $30k). Conformity: values hold where properties are reasonably similar; its corollaries are progression (the modest house lifted by grander neighbors) and regression (the mansion dragged down among cottages). Highest and best use: value assumes the legally permissible, physically possible, financially feasible, maximally productive use.
- Substitution powers sales comparison
- Anticipation powers income capitalization
- Contribution: value added, never cost
- Progression lifts the small; regression drags the big
Change, competition, and balance
Change: markets and neighborhoods cycle (growth, stability, decline, revitalization) — value is a snapshot on a moving film. Competition: excess profits attract competitors until profits normalize. Supply and demand sets the price backdrop; balance says value peaks when land use and improvements are in proportion — over-improvement wastes capital the market won't repay.
Worked example
In a neighborhood of $350,000 homes, an owner spends $180,000 adding a resort-grade pool complex and third story, listing at $560,000. An identical unimproved model next door lists at $349,000. The improved house sells for $415,000. Explain the result with named principles.
Substitution capped the buyer's willingness: with an equally desirable substitute at $349,000, nobody pays $560,000 for the same base house plus extras they value partially. Contribution priced the improvements: the $180,000 spend ADDED $415,000 − ~$350,000 ≈ $65,000 of value — features are worth their market contribution, not their invoice. Regression/conformity explains the ceiling: an over-improved property among $350,000 homes is pulled toward neighborhood norms; the same complex in a luxury enclave would contribute more. The seller violated balance — capital beyond what the location supports is unrecoverable. Four principles, one disappointing closing statement.
Common exam pitfalls
Equating cost with value.
Contribution rules: improvements are worth what the market pays for them, routinely far less than their cost.
Swapping progression and regression.
Progression benefits the LESSER property among better ones; regression penalizes the GREATER among lesser.
Missing which principle powers which approach.
Substitution → sales comparison; anticipation → income approach; cost approach leans on substitution too (build vs buy).
DUST makes it valuable; substitution caps it; contribution prices the extras; the neighbors set the gravity.
Recap
- Market value: most probable arm's-length price — not price or cost
- DUST: demand, utility, scarcity, transferability
- Substitution: no more than an equivalent alternative
- Anticipation: present worth of future benefits
- Contribution: added value, not cost; balance warns against over-improvement
- Conformity, progression, regression: the neighborhood's pull
Prove it: 10 questions on this topic
Every lesson ends with a ten-question check in the free course — your progress syncs between the web and the EstatePass app.