Vilac GIS · Province hubTiếng Việt

Evidence library · V3 test release

Vietnam land valuation methodology & data sources

Read the price label before comparing numbers. A listing, a state table and a model estimate answer different questions.

Six price labels to keep separate

State price

A value in an official land price table, tied to its document, location, land type and period. It is not evidence of a market sale.

Asking price

The amount requested in a listing. Negotiation, duplicates, stale listings and uncertain locations can distort it. Multiplying it by a discount factor does not turn it into a transaction.

Verified transaction

A completed transaction supported by an independent record, with date, asset scope, price basis and verification trail. No independent transaction dataset has been verified for publication here.

Indicative estimate

A model output for preliminary research. A model fitted to asking prices remains asking-based even after adjustment. It is not a certified valuation or a transaction index.

Auction starting price

The opening or reserve amount in the auction notice. A notice does not establish a winning price or completed payment.

Auction winning price

The accepted winning bid supported by the result document. Keep it separate from starting prices; payment and completion may still need verification.

What is available in your province?

Choose from the national catalogue. Being listed does not mean that every commune, parcel or data layer is covered. Status below is frozen to the reviewed V3 snapshot, not a live coverage guarantee.

Browse province pages · Read the snapshot manifest (JSON)

Model scope and validation

The existing methodology describes asking-price adjustments. Its historical error figures have not been reproduced against this release’s exact model and data snapshot. They are not republished here. Model file hashes identify inputs; they do not certify accuracy.

Publish a performance figure after matching the model hash, data hash, observation period, label type and independent run log. Describe how spatial or time holdouts prevent leakage, the error metric and sample exclusions. A fitted error is not an out-of-sample result.

Sparse or old listings, location errors and changing land-use assumptions can widen uncertainty. A province model does not establish commune-level reliability. Land models do not automatically cover apartments, factories or buildings. Missing map layers do not establish that a parcel is clear of restrictions.

Read the existing methodology (historical snapshot) · Existing data terms

This page does not determine a foreign individual’s eligibility to acquire land or housing. Price availability is not evidence of eligibility.

Data dictionary and download policy

Download documentation now. Source prices and aggregate CSVs remain withheld until source URLs, versions and permission for every released field have been checked. Public access does not imply redistribution rights. No personal or parcel-owner records are included.

Field definitions; source values are not distributed
FieldTypeMeaning
datasetIdstringStable dataset identifier
publisherstringPublisher whose attribution is authorised
titlestringDescriptive title in EN and VI
versionstringImmutable release version
periodstringObservation period; unknown stays null
observedAtdate|nullDate of price observation
publishedAtdate|nullSource publication date, distinct from observation
reviewedAtdateDate the source and use rights were reviewed
provinceIdstringCatalogue ID; not proof of coverage
boundaryVersionstring|nullAdministrative geography and effective period
priceTypeenumstate / asking / verified_transaction / indicative_estimate / auction_start / auction_winning
amountVndnumber|nullOriginal VNĐ amount; no inferred missing value
unitstringOriginal denominator and scale; m² (≈10.7639 sq ft)
areaBasisstring|nullLand area or floor area; never interchangeable
sampleCountinteger|nullEligible observations after deduplication
sourceUrlhttps URLResolvable public source URL
rightsstringExplicit redistribution permission, otherwise withheld
fieldRightsobjectPermission separately for every released field
personalDatabooleanMust be false for publication
dataSha256sha256Hash of exact data bytes
modelSha256sha256|nullHash of exact model used for validation
labelEvidencestring|nullEvidence supporting the price label
validationobject|nullSame period/model/data; held-out method, metric, error, log hash
correctionStatusstringOpen issue, correction or superseding release

Amounts retain their original VNĐ basis. This documentation quotes no prices and provides no currency conversion. Check the original amount and unit before comparing source data.

Cite this documentation

Publisher: Vilac GIS. Version: 2026-10-30.4. Reviewed: 2026-10-30. Observation period: not applicable to documentation. Source dataset permissions remain separate.

Vilac GIS (2026-10-30). Vietnam land price evidence and data dictionary. 2026-10-30.4. Observation period: not applicable to this documentation. Reviewed: 2026-10-30. https://vilacgis.com/investor/evidence/versions/2026-10-30.4.json Source and reuse rights: see manifest; underlying datasets are not licensed by this citation.

Frozen version metadata

Source trail

Corrections and next steps

Save the page URL, version and field name; compare the original source document and observation date. For a disputed price, keep the amount out of comparisons until the label and unit are resolved. Obtain a non-personal confirmation from the issuing authority or an authorised data provider when no public record is available.

A correction must retain the earlier version and source trail, state what changed and why, and issue a new reviewed version. Unresolved figures remain withheld. Do not send identity documents or private transaction records.

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