An appraiser needs a land-to-value ratio for a market where no vacant land has sold. What is the best source?
Correct Answer
A) Extraction from improved sales in that market
Why this is correct: The extraction method derives a land value indication by subtracting the depreciated value of improvements from the sale price of comparable improved properties. This provides a market-based ratio specific to the subject's market area. Why the other choices are wrong: 'A ratio published for the state as a whole' is too broad and may not reflect local conditions. 'The assessor's land and building split on record' is for tax purposes and may not reflect market value. 'The ratio the client used on a previous file' is not an independently verifiable market source. Exam tip: When direct land sales are unavailable, extraction from improved sales is the preferred method for deriving a land-to-value ratio.
Why This Is the Correct Answer
Extraction is the only listed source that produces a ratio from actual transactions in the subject's own market, which is the standard any market-derived factor must meet. It also gives the appraiser control over the inputs, since the improvement estimate can be built consistently across the sales and documented in the workfile. The technique works best where improvements are relatively new or simple, because the land is a residual and absorbs every error in the improvement estimate. Choice A is the market-based answer, and the others are borrowed numbers.
Why the Other Options Are Wrong
Option B: A ratio published for the state as a whole
A statewide ratio averages urban cores, suburbs, and rural counties whose land shares differ enormously, so it describes no particular market and certainly not the subject's. Applying it would import land economics from places with different scarcity, zoning, and demand. A published figure looks authoritative precisely because it is printed, which is what makes the option attractive.
Option C: The assessor's land and building split on record
The assessor's split between land and building serves mass appraisal and tax administration, is often produced by formula, and may be carried forward from a reassessment years old. It is not developed as an opinion of market land value and frequently does not move when land prices do. Using it would substitute a tax allocation for market evidence.
Option D: The ratio the client used on a previous file
A ratio pulled from the client's earlier file has no verifiable derivation, may relate to a different date, market, or property type, and comes from an interested party. Adopting the client's number also creates the appearance that the analysis was steered rather than developed. Whatever the figure turns out to be, the appraiser cannot support it because he did not derive it.
Borrowed Ratios Do Not Fit
A land-to-value ratio is tailored, not off the rack. State averages, tax rolls, and the client's old file are all somebody else's suit. Extraction cuts the cloth from sales in your own market.
How to use: When a stem asks for the best source of any factor or ratio, pick the option that derives it from local market transactions. Eliminate published averages, government records built for other purposes, and figures handed over by a party.
Exam Tip
Best source questions have a pattern: the answer is the one the appraiser develops from market data, not the one that arrives ready-made. That holds for cap rates, adjustment factors, and land ratios alike.
Common Mistakes to Avoid
- -Using the assessor's land-to-building split as an opinion of market land value
- -Applying a regional or statewide ratio to a specific neighborhood
- -Extracting from sales where old improvements dominate value, so the residual is mostly error
Concept Deep Dive
Analysis
Allocation estimates site value by applying a land-to-value ratio to the total property value, which only pushes the problem back a step, because the ratio itself has to come from somewhere credible. In a market with no vacant land sales, the ratio is developed by extraction: take improved sales in that same market, estimate the depreciated cost of the improvements, subtract to get the land residual, and express that residual as a share of the sale price. That keeps the ratio anchored to transactions in the same submarket, with the same zoning, utilities, and demand pressures that affect the subject, which is the only thing that makes an allocation defensible. Land-to-value ratios are notoriously local, varying widely between an infill block and a subdivision two miles away, so a ratio borrowed from a wider geography or a different purpose has no analytical connection to the subject at all.
Background Knowledge
You need the six recognized methods of site valuation and the difference between allocation, which applies a ratio, and extraction, which derives a residual land value from improved sales. You should also know why extraction is most reliable where improvements are new or a small share of value, and the general requirement that factors used in an analysis be derived from the relevant market.
Real-World Application
In a built-out inner suburb with no vacant land sales in six years, an appraiser extracts land residuals from eight recent teardown-resistant improved sales, finds land running 32 to 38 percent of price, applies 35 percent to the subject, and documents the cost source and depreciation used in each extraction.
More Land/Site Questions
Under which condition is the land residual technique most applicable?
Why can the same physical parcel carry different values in two assignments?
In a built-up area where no vacant land has sold for years, which approach to site value is the usual fallback?
How is entrepreneurial profit treated in the subdivision development method?
A land comparable sold 18 months ago in a market rising about 4 percent a year. What adjustment direction applies?
Why does a developer's required profit rise for a longer subdivision project?
How does holding cost enter the valuation of land bought for future development?
Excess land is best described as land that has which characteristic?
Plottage value arises in which of the following situations?
Which of the following is an off-site improvement rather than a site improvement?
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