Site Value

Definition

Site value is the assessed value of a parcel of land excluding the value of any buildings, structures, crops, or other improvements made by the owner. It represents the value of the location itself — arising from proximity to infrastructure, services, economic activity, and natural features — and is the assessment base on which a land value tax (also called a site value tax) is levied.

The term appears particularly in Australian and New Zealand rating contexts, where taxing land value alone — as distinct from taxing land plus improvements — has been a recurring feature of local and state government finance. [VERIFY: whether "site value rating" is the standard named term in Australian/NZ local government practice, or whether the more common labels are "land-value rating" (NZ) and "unimproved capital value" (NSW)]

Site Value vs. Improved Value

The distinction between site value and improved (or capital) value is central to Georgist tax policy:

• Site value (unimproved value): the value of the land component only — the locational premium created by the community and nature, not by the individual owner's investment.
• Improved value (capital value): the combined value of land plus buildings and other improvements.

A conventional property tax falls on improved value, meaning an owner who builds or renovates faces a higher tax bill. A tax on site value alone removes this penalty, since improvements do not increase the assessment. This is the same principle underlying split-rate taxation, which applies a higher millage rate to land values than to building values as an incremental step toward taxing site value only.

Assessment

Assessing site value requires separating the land component from the value of improvements — the practical challenge addressed on the wiki's assessment objection page. Methods include comparable vacant-lot sales, teardown sales, residual estimation (sale price minus depreciated structure cost), and modern mass appraisal techniques such as hedonic regression and cooperative-game separation. As Lars Doucet argues, land value is spatially smooth — neighbouring parcels have similar land values — which can make site value assessment more tractable than whole-property assessment, not less.

Jurisdictional Usage

New South Wales, Australia

New South Wales has levied a state land tax since 1895, assessed on the unimproved capital value of land — the site value, excluding buildings. Local councils in parts of Australia have also rated on land value rather than total property value. The NSW system demonstrates the administrative durability of site value assessment at scale over more than a century.

New Zealand

New Zealand historically employed land-value (LV) rating as a primary local government funding mechanism — one of the most significant real-world cases of pure LVT at the local level. The country's gradual shift from land-value to capital-value (CV) rating bases, with resulting variation across municipalities, has provided researchers with a quasi-natural experimental setting. Gemmell, Grimes & Skidmore exploited this variation in Auckland to examine whether the rating base choice affects new building development, finding little effect on new building consents in the short window after Auckland's 2010 amalgamation forced a shift away from land-value rating.

Significance

Site value is the conceptual and administrative foundation of pure land value taxation. The distinction between taxing site value and taxing improved value is what makes LVT fundamentally different from a conventional property tax: it shifts the tax base from a bundle of land and improvements to land alone, removing the penalty on productive investment while capturing the community-created locational premium. The ground rent concept — the rent attributable to the land itself — describes the income flow that site value capitalises.

See Also

• Land Value Tax
• Split-Rate Taxation
• Objection: Land value can't be assessed accurately
• New South Wales
• New Zealand
• Ground Rent

Sources

1. Henry George (1879), Progress and Poverty — wiki summary — used for the concept that land value is socially created and the theoretical basis for taxing site value.
2. Robert Andelson, ed. (2001), Land-Value Taxation Around the World — wiki summary — used for the comparative survey of site value rating in Australia and New Zealand.
3. Gemmell, Grimes & Skidmore (2019), "Do Local Property Taxes Affect New Building Development?", Journal of Housing Economics — wiki summary — used for NZ's land-value vs capital-value rating distinction and the Auckland quasi-natural experiment.
4. Lars Doucet (2022), "Does Georgism Work? Part 3: Can Unimproved Land Value Be Accurately Assessed?", Astral Codex Ten — wiki summary — used for the argument that land value is spatially smooth and therefore assessable.
5. Richard Dye & Richard England (2010), Assessing the Theory and Practice of Land Value Taxation, Lincoln Institute — wiki summary — used for practical assessment and implementation issues relevant to site value as a tax base.