The Principles of Value That Govern the Market

The market establishes value, and it does so according to patterns that repeat across property types, price tiers and decades. Those patterns are described as principles of value. A broker applies them, often without naming them: in recognizing why a seller’s expectation is unlikely to be met, why one comparable set is coherent and another is not, and why a house that looked well priced in March is sitting in July. Each principle below is stated once and then read as something a broker watches for.

Change

Markets change. Inventory, rates, employment and buyer preferences shift continuously, and a price is accurate only as of a date. The principle of change is the reason a closed sale carries a date, why a sale from eleven months ago is weighed differently from one closed last month, and why a CMA prepared in the spring is not the CMA for a listing that comes to market in the fall. A broker watches change in the simplest data: months of inventory, the sale-to-list ratio of closed sales, and days on market, read for the subject’s competitive set rather than for the state or the county.

Anticipation

Buyers pay for the future benefits of ownership, not the past ones. A house is bought for the use, the enjoyment and the eventual resale a buyer expects from it. The principle of anticipation is why a completed approval for a mixed-use development a quarter-mile from a subdivision can move prices before a foundation is poured, in either direction depending on what buyers expect from it, and why the price of a house next to a parcel with a pending zone change can reflect what the parcel may become. A broker watches anticipation in what is on the municipal planning and zoning agenda and in how sale prices near approved projects move.

Supply and demand

Price responds to the relationship between the number of properties offered and the number of buyers seeking them. When few houses of a kind are listed and buyer activity is strong, prices tend to rise and days on market shorten; when listings accumulate and buyers thin, the reverse. The principle is read at the level of the competitive set. A town may have four months of inventory overall and three weeks of inventory for updated ranches under $450,000. A broker watches supply and demand in the active and pending listings that compete with the subject, because those are the conditions the seller’s buyer is facing.

Competition

Where a use is profitable, competitors enter until the profit is reduced to a normal level. In residential markets the principle shows most clearly in new construction. When a builder’s first phase sells quickly at a premium, a second builder may enter nearby, and the premium tends to narrow. It also shows in listings: a seller who prices above the competitive set may invite the next listing in the neighborhood to be priced below it and to sell first. A broker watches competition in the active inventory that will be on the market beside the subject in the weeks after it lists.

Balance

A property and a neighborhood tend toward a balance among their elements, land, improvements, and the surrounding uses, and value is maximized when that balance is maintained. Overimprovement disturbs it: a $250,000 addition on a house in a neighborhood where the finished houses close at $500,000 does not produce a $750,000 house, because the market for that neighborhood does not extend that far. Underimprovement disturbs it in the other direction, as with a small original house on a lot in an area where larger houses have become the norm. A broker watches balance when a seller’s cost expectations exceed the top of the neighborhood.

Conformity

Value tends to be sustained where properties are reasonably similar to one another in size, age, style and use. The principle explains why a subdivision of similar houses holds a tight price band, and why a house that departs sharply from its surroundings, in either direction, is difficult to price from its neighbors. The largest house on the street tends to bring less than its size would suggest, and the smallest tends to bring more, because each is pulled toward the neighborhood’s band. A broker watches conformity when the subject is the outlier on its street, because the comparable set may then be found in another neighborhood where houses of that kind are the norm.

Contribution

The value of a feature is measured by what it adds to the price of the whole, not by what it cost. A finished basement, an in-ground pool, a third garage bay or a high-end kitchen each contributes what buyers in that market pay for it, which can be below cost and, for some features, small; the paired sales show which. Contribution is the principle beneath every adjustment in a CMA: the difference between two otherwise similar sales, one with the feature and one without, is the feature’s contribution. A broker watches contribution whenever a seller presents an invoice as evidence of price.

Externalities

Value is affected by factors outside the property’s boundaries that the owner does not control. Some are broad, such as a plant closing or a major employer’s expansion; some are local, such as a new highway interchange, a change in traffic on a residential street, a commercial use approved on an adjoining parcel, or a flood map revision that moves a house into a special flood hazard area. Externalities are why two identical houses on the same street, one abutting the town’s transfer station and one not, can sell at different prices: the two are in the same market area, and the analysis accounts for the external influence on the one that abuts it. A broker watches externalities in what has changed around the subject since the comparables closed.

Application

A seller of a 3,100-square-foot colonial on a street of 1,900- to 2,200-square-foot colonials expects a list price of $825,000. The seller added the master suite and the three-car garage four years ago at a cost of $210,000. The street’s updated houses have closed between $560,000 and $605,000 in the past eight months. Three of those sales are more than seven months old, and the town’s planning commission has since approved a 60-unit apartment building on the commercial parcel at the end of the street, with construction not yet begun. Two of the neighborhood’s listings show more than ninety days on market in the MLS.

The file is read through the principles before a range is run. Conformity and balance place the house as the outlier on its street, and the comparable set may need to be found among larger houses in a neighborhood where 3,000-square-foot colonials are the norm. Contribution governs the $210,000: the market’s evidence for a master suite and a third bay is the difference between sales with and without them, not the invoice. Change and supply and demand say that eight-month-old sales, ninety-day listings and an apartment approval describe a market that is not the one those sales closed in, and anticipation and externalities say that buyers may price the approved building into their offers before it is built; whether they have is read from recent sales near the site. None of this produces a number. It shows where to look, and the range that follows will be one the office can explain.

Summary

The principles of value describe how the market behaves: it changes continuously; it pays for anticipated benefits; it prices by the balance of supply and demand within the competitive set; it draws competition toward profit; it rewards balance among a property’s elements and conformity with its surroundings; it pays for a feature what the feature contributes, not what it cost; and it responds to what happens outside the property’s lines. For a broker, each principle is a thing to watch in the listing, the comparable set and the seller’s expectations, and each one shows up in price.