What is the subject
The land, the building, the extent of rights, and which items are included.
Real Estate Appraisal · De-identified Teaching Case
A property's value isn't guessed —
it's reasoned, step by step.
This is a de-identified teaching case adapted from the working structure of a real appraisal assignment. It walks you through how an appraiser defines the problem, verifies data, analyzes the market, and forms an explainable value opinion.
Privacy handling: The location, dates, area, case data, and all figures on this page have been removed, generalized, or recomputed. Nothing here maps to any specific property, and it is not the result of any actual assignment.
The question this case answers
Setting aside the existing building on site, what is this residential-zone land worth on the market as of the valuation date?
Value typeMarket Value of Land
Special assumptionAs if vacant
Methods used2
NatureTeaching adaptation
First, define the problem
Appraisal is not just looking at nearby sale prices
The same property can have different answers depending on the valuation date, the purpose, and the assumptions. The appraiser's first job is to state clearly what is being valued.
Why value it
Transaction, financing, accounting, litigation — the intended use differs.
Value as of when
Value reflects the market at a specific date, not something permanent.
On what premise
This case excludes the existing building and treats the site as developable vacant land.
Meet the case
Residential land in an established urban district, northern Taiwan
To prevent identification of the original assignment, the conditions below have been reasonably adapted. Their purpose is to demonstrate the analytical structure — not to reproduce the original value.
~18m road
~12m road
~6m road
Site (illus.)~250 ping
3 road frontages
3 road frontages
Not a cadastral map · no locational function
- Subject
- Fee simple, entire land parcel
- Zoning
- Residential (illustrative)
- Site area
- ~250 ping (adapted value)
- Topography
- Slightly irregular, level grade
- Condition
- Building exists, but excluded from value
- Value type
- Market Value
What does "as if vacant" mean?
It is a valuation assumption: although a building may stand on site, the conclusion reflects land value only, and does not fold in the building's value, demolition cost, or income in use. It does not mean the building is legally or physically absent.
The appraisal process
One value opinion, six checkpoints
- 1
Confirm engagement & scope
Define the subject, purpose, valuation date, value type, and special assumptions.
- 2
Title & regulatory review
Check registered records, urban planning, use controls, and encumbrances.
- 3
Site inspection
Observe road frontage, topography, current use, surroundings, and value-affecting conditions.
- 4
Market data collection
Select land and new-build sale comparables that are genuinely comparable to the subject.
- 5
Method calculation & checking
This case applies the comparison approach and land development analysis, cross-checking the results.
- 6
Reconciliation & conclusion
Weigh data quality and method applicability, explain the weighting, and form the final opinion.
Two methods, cross-checked
Seeing the same land through "market sales" and "development capacity"
A
Sales Comparison Approach
Comparison Approach
Find comparable land sales, then adjust for transaction date, area, and individual conditions so each case moves closer to the subject property.
Comparable unit price×Adjustments=Indicated unit price
| Item | Comp. A | Comp. B | Comp. C |
|---|---|---|---|
| Original unit price | 142,000 | 151,000 | 158,000 |
| Time adjustment | +2% | +5% | +7% |
| Area & individual factors | +13% | +5% | −1% |
| Adjusted unit price | 163,700 | 166,500 | 167,400 |
| Weight | 30% | 40% | 30% |
Comparison approach — indicated unit priceNT$166,000/ping
Why can't the appraiser just average the sale prices?
Comparables usually differ in date, area, road frontage, shape, and development conditions. Differences must first be adjusted to a common basis, then weighted by data reliability and degree of similarity.
B
Land Development Analysis · Residual Method
Land Development Analysis
First estimate the gross sales value a reasonable completed development could create, then deduct construction, design, sales, management, taxes, interest, and profit. What remains is the price the land can support.
Estimated gross sales100%
Development costs, fees, interest & profit~76%
Residual land value~24%
Product concept6-story elevator residential
Saleable area~640 ping
Parking12 spaces
Developer profit rate15%
Gross sales value−Costs & fees−Interest & profit=Land value
Land development analysis — indicated unit priceNT$168,000/ping
Why is a "highest and best use" analysis needed?
Land value relates to the use that is legally permissible, physically possible, financially feasible, and produces the highest value. The development concept is not a finalized architectural design, but a reasonable market assumption required for the appraisal.
Reconciliation
The two methods aren't a contest — they verify each other
In this example the two results are close and the data are equally usable, so each is given a 50% weight.
Comparison approach166,000NT$/ping × 50%
＋
Land development analysis168,000NT$/ping × 50%
＝
Illustrative final unit priceNT$167,000/ping
At an illustrative site area of ~250 pingIllustrative total land value ~ NT$41,750,000
167,000 NT$/ping × 250 ping = 41,750,000 NT$. All figures are teaching adaptations, not the result of the original assignment.
Reading an appraisal report correctly
Beyond the conclusion page, look at these four things
Purpose
The conclusion serves only the purpose stated in the report; a different purpose may require re-evaluation.
Valuation date
Markets change; the report reflects a specific date, not today's real-time price.
Assumptions & limits
Whether treated as vacant, whether leases or special rights are included — all affect the answer.
Method & data
Understand how comparables were selected, how differences were adjusted, and how methods were reconciled.
Need a formal appraisal
Need an explainable appraisal report to support a decision?
This teaching case only explains the working method of appraisal. If you have an income property, aged building, defective property, or family succession appraisal need, you are welcome to contact Richard Cai. The scope and required materials are confirmed before any formal appraisal begins.
Case statement
This case is reconstructed for teaching from the sections and analytical logic of an actual appraisal assignment, after de-identification. To protect the parties to the original assignment, the location, parcel numbers, street address, rights holders, client, report number, dates, area, road conditions, comparables, and all figures have been removed, generalized, or adjusted; the site diagram has no locational function.
This page is intended to explain the work of real estate appraisal. It does not constitute a value opinion on any specific property, and must not be used as a basis for transaction, financing, tax, litigation, accounting, or other decisions. Actual assignments should be handled by a real estate appraiser according to the specifics of each case.