Ch5. Land Appraisal — Site Valuation and Land Characteristics

Characteristics That Make Land Unique

Land possesses physical characteristics that distinguish it from all other assets and drive appraisal methodology:

Immobility (Fixity): Land cannot be moved — location is permanent and dominant
Indestructibility: Land is not physically consumed; it has an indefinite economic life (no depreciation)
Uniqueness (Non-homogeneity): No two parcels are identical — individual analysis is always required
Scarcity: The total supply of land is essentially fixed in any given market area

Three principles guiding land appraisal:
① Always valued at its Highest and Best Use (as if vacant)
② Valued as though unimproved ("as vacant" premise)
③ No speculative value increment included in a condemnation/eminent domain appraisal

How Land Is Valued: The US Framework

Unlike systems that rely on a government-published reference price index, US land appraisers primarily use the Sales Comparison Approach to value land.

Sales Comparison Approach for Land

Land Value = Sale Price of Comparable Site
           × Market Conditions Adjustment
           × Location Adjustment
           × Physical Characteristics Adjustment
           (per-unit basis: $/SF, $/acre, $/FAR unit, etc.)

Key adjustment elements:
- Time (market conditions since sale date)
- Location / neighborhood quality
- Zoning and allowable density
- Site size and shape
- Frontage / access
- Utilities available
- Topography

Allocation and Extraction Methods

When paired vacant-land sales are unavailable, appraisers may use:

Allocation:  Apply a typical land-to-total-value ratio from comparable
             improved properties to arrive at a land value estimate

Extraction:  Subtract depreciated improvement value from total sale price
             of an improved comparable to isolate the land component

Land Residual Technique (Income Approach):
Land Value = (NOI − Return on Building Value) / Land Capitalization Rate

Zoning and Land Use Classification

US Zoning Categories (typical):
Residential (R): Single-family, multi-family, ADU density tiers
Commercial (C):  Retail, office, hospitality — by intensity level
Industrial (I):  Light manufacturing, warehousing, heavy industrial
Agricultural (A): Farming, ranching — conversion rights vary by jurisdiction
Mixed-Use (MU):  Combined residential + commercial envelopes

Key appraisal checks:
① Current zoning — legal permitted use
② Highest and Best Use — may or may not equal current zoning
③ Non-conforming uses — legally existing but no longer permitted if rebuilt
④ Overlay districts — flood plain, historic, coastal, transit corridor

Factors That Influence Land Value

General (Market-Wide) Factors

Physical/Environmental: topography, climate, natural resources, flood risk
Social:                 population trends, demographics, lifestyle preferences
Economic:               employment, interest rates, business climate
Governmental:           zoning, density limits, taxation, infrastructure spending

Regional and Neighborhood (Location) Factors

Commercial sites:       trade area population, traffic counts, visibility, clustering
Residential sites:      school quality, safety, commute access, amenities
Industrial sites:       highway/rail/port access, labor pool, utility capacity

Site-Specific (Individual) Factors

Frontage / Access (most influential):
- Width of road frontage
- Number of access points
- Corner lots command a premium (corner influence)
- Landlocked parcels (no street access) require significant discount

Shape:
- Regular (rectangular/square) > Irregular > Flag lot
- Flag and oddly shaped lots often require a discount

Topography:
- Level site > gently sloping > steeply sloping
- Low-lying sites may carry a flood-risk discount

Orientation/Aspect (residential):
- South-facing lots favored in northern climates
- View premiums are site- and market-specific

Utilities:
- Municipal water and sewer available commands premium
- Septic / well sites may require discount relative to served lots

Applying the Approaches

Primary method: Sales Comparison (most market-direct for land)
Supporting methods: Income Approach (land residual), Cost (extraction/allocation)

Sales Comparison process:
Land Value = Adjusted Sale Price of Comparable

Time adjustment:
- Derived from paired-sales analysis or published market trend indices

Location and physical adjustments:
- Extracted from the market via paired-sales where possible
- Appraiser's judgment where paired data are insufficient

“As Vacant” Valuation Premise ★★★★★ : Land is always appraised as though unimproved, regardless of existing structures. Improvements are valued separately (Cost or Income Approach), then combined with site value. Memory trigger: Land value = site in vacant condition

Frontage / Access ★★★★★ : Access characteristics are typically the single most influential physical factor for commercial and industrial land value. Corner influence can add 5–15% or more to a site’s value. Memory trigger: Access = most influential single site factor

Highest and Best Use (as vacant) ★★★★☆ : Determines which use drives the land value conclusion. The HBU as vacant may differ from HBU as improved if existing improvements have residual value but are not the ideal improvement. Memory trigger: HBU as vacant vs. HBU as improved — distinguish them

Practice Quiz

Q. What technique is used to value a land parcel when there are no recent comparable vacant land sales?

Allocation (applying a typical land ratio from improved sales) or Extraction (subtracting depreciated improvement value from an improved comparable’s sale price to isolate land). The land residual technique under the Income Approach is also available.

Q. How does an appraiser handle a landlocked parcel with no legal street access?

The parcel is appraised reflecting its current lack of access — typically at a significant discount (often 40–60%+ below otherwise-comparable parcels). The appraiser may also analyze the cost and probability of gaining legal access (easement or lot-line adjustment) and whether the market would recognize any premium for that possibility.