Appraising an Arbol Verde Home: History, Lot Pattern and Comparable Choice

Appraising an Arbol Verde home starts with recognizing that the neighborhood holds more than one kind of house. Claremont Heritage records a neighborhood established in 1910 and, inside it, a late-1940s block of 12 lots planned for flat-roofed International style houses. So the appraiser identifies which kind of house the subject is, reads its actual lot and building record, and chooses comparables by house type and era rather than by the neighborhood name, with every exception explained in the report.

This article covers the assignment. What a small early-1950s house there is measured against is the subject of what is a house in Arbol Verde worth.

What history does the appraiser need?

Enough to know what kind of houses are on the street. The Arbol Verde Collection, held by Claremont Heritage, describes a neighborhood established in 1910 that stretches from 1st Street to 6th Street, bounded by Mills Avenue and Claremont Boulevard. Its finding aid notes that many houses there were built in the early 20th century, and that Claremont McKenna College's expansion, which began in the 1960s with the creation of Claremont Boulevard, saw houses relocated or torn down.

Claremont Heritage's Indian Hill Boulevard tour adds the second chapter. In the late 1940s a group of Claremonters bought a vacant block bordered by Brooks Avenue, First Street, Claremont Boulevard and Harwood Place, developed 12 lots as an experiment in intercultural living, and provided plans for flat-roofed International style houses to the new owners. Claremont Heritage's architecture page describes the result as several small houses of the International Style built in the early 1950s.

That history is the reason Arbol Verde cannot be treated as one tract. It is also history only: it describes buildings and lots, and nothing about who lives in a neighborhood enters an appraisal.

Why does the lot pattern matter?

Because two patterns sit side by side. The intercultural block was laid out at once as 12 lots on a single block; the older neighborhood around it grew over decades and was reshaped by the college's expansion.

For lender work, Fannie Mae's Selling Guide requires the appraisal to use the actual size of the site, not a hypothetical portion, to reflect easements and encroachments, and to state the zoning class and whether the use is legal conforming or legal non-conforming. The appraiser reads the recorded lot and the building record for the subject rather than assuming the block still looks as it was first laid out.

What does the inspection record?

The inspection is 30 to 60 minutes for a standard single-family home, longer for hillside, custom, multi-family or homes with additions. In Arbol Verde the appraiser pays particular attention to four things.

• Era and original design. Whether the house is an early-20th-century building, one of the flat-roofed International style houses, or later construction, and how much original design survives.
• Living area, measured. Gross living area, the finished, heated living space above grade, is measured at the house under the ANSI Z765-2021 standard the Guide requires for lender work.
• Additions and permits. Where a required permit is missing, the Guide requires comment on the quality and appearance of the work and its impact.
• Condition and age. Condition is rated C1 to C6 and quality Q1 to Q6. The Guide treats the gap between actual and effective age as a good indication of condition.

The Guide also says improvements should conform to the neighborhood in age, type, design and materials, and that where they do not and the market resists, the appraiser addresses the effect. In a neighborhood that mixes eras, the report explains what "conforming" means on this street.

How are comparables chosen?

A comparable sale is a closed sale of a property similar enough that a buyer of the subject would have weighed it. In Arbol Verde the house type decides where the search goes.

1. Arbol Verde itself, a sale of the same kind of house, closed close to the effective date, the date the opinion of value applies to.
2. The same era elsewhere in Claremont. An early-20th-century house is compared with similar-era houses near the Village and the Colleges, as in appraising a pre-1940 Craftsman or Spanish Colonial Revival home; a flat-roofed modernist house is compared with Claremont's other small modernist and mid-century houses.
3. Across the county line, only as better evidence. The Claremont area page notes that crossing Mills Avenue puts you in Montclair or Upland, in San Bernardino County, where the assessor and buyer pool change. A sale there is used only when it is genuinely better evidence, with the location adjustment explained; what the county line does to comparable sales covers why.

The Guide says sales closed within the last 12 months should be used, older ones explained, and that the appraiser must not expand the neighborhood boundaries just to take in the sales chosen.

The lines an Arbol Verde assignment leans on, left blank: examples never carry a real address, sale or value.

Line itemSubjectComparable 1Comparable 2Comparable 3

Data source and verification

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Era and original design

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Lot area and shape, actual

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Zoning conformity

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Gross living area, measured

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Additions and permit status

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Condition rating

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Quality rating

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County and location

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Net adjustment and weight

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How does fair housing law shape the report?

Directly. The federal Fair Housing Act, at 42 U.S.C. 3605, names the appraising of residential real property among the transactions in which discrimination because of race, color, religion, sex, handicap, familial status or national origin is unlawful. The Guide's neighborhood section bars any reference to a protected class of owners or occupants. The report describes the house, the lot, the sales and the market; the practice's fair housing statement says the same.

What is the report, and what is it not?

It is an independent opinion of market value as of the effective date, written for its intended use, what it will be used for, and its intended users, the people entitled to rely on it. An adjustment, the amount a comparable's price is changed for a difference buyers react to, must reflect the market's reaction. An automated estimate is not an appraisal, an agent's CMA is not an appraisal, the county assessment is not an appraisal, and a cash offer is not an appraisal. The appraiser is independent of every party, including the one who pays.

Home Appraisal in Claremont: What the Report Measures, Pocket by Pocket explains each section, and the Home Appraisal in Claremont hub lists the other pockets, among them Northeast Claremont. The fee is set by the scope of the assignment and quoted before work begins, and it does not depend on the value. The report is typically three to five business days from the inspection. See the Claremont area page and the services list.

Next step

To have an Arbol Verde home appraised for an estate, a trust, a family law matter or a purchase, request an appraisal or call (909) 324-6122.

Sources

• Online Archive of California, Arbol Verde Collection (Claremont Heritage), accessed November 6, 2026
• Claremont Heritage, Indian Hill Boulevard self-guided tour (Arbol Verde Intercultural Council Housing), accessed November 6, 2026
• Claremont Heritage, Architecture, accessed November 6, 2026
• Fannie Mae Selling Guide B4-1.3-03, Neighborhood Section of the Appraisal Report, accessed November 6, 2026
• Fannie Mae Selling Guide B4-1.3-04, Site Section of the Appraisal Report, accessed November 6, 2026
• Fannie Mae Selling Guide B4-1.3-05, Improvements Section of the Appraisal Report, accessed November 6, 2026
• Fannie Mae Selling Guide B4-1.3-06, Property Condition and Quality of Construction of the Improvements, accessed November 6, 2026
• Fannie Mae Selling Guide B4-1.3-08, Comparable Sales, accessed November 6, 2026
• 42 U.S.C. 3605, Discrimination in residential real estate-related transactions, accessed November 6, 2026
• California Bureau of Real Estate Appraisers, license lookup for Gordon Hall, accessed November 6, 2026

Gordon Hall, California Certified Residential Real Estate Appraiser, BREA No. AR003877 (lookup: https://www2.brea.ca.gov/breasearch/faces/party/view.xhtml?id=23601). Reports are prepared in conformity with the Uniform Standards of Professional Appraisal Practice (USPAP). Nothing here is legal or tax advice; admissibility is always the court's decision.