CV vs Market Value in Christchurch - Understanding the Difference

When you look up a property on realestate.co.nz or Trade Me, you will often see the Council Valuation (CV) displayed alongside the listing. Many buyers and vendors treat the CV as a reliable guide to what a property is worth. It is not. Understanding the difference between CV and market value is essential for anyone buying or selling in Canterbury.

What the CV Is

The Council Valuation (also called the Rateable Value or RV, and formally the Rating Valuation) is determined by Quotable Value (QV) on behalf of your local council. It is used to calculate the relative proportion of rates each property contributes to the council's total rates take. Christchurch City Council revaluations are conducted periodically - the most recent revaluation used 1 July 2024 values, with a new revaluation based on 1 August 2025 values taking effect from 1 July 2026. The CV is set through a mass assessment process that values thousands of properties simultaneously using statistical modelling rather than individual property inspections. It is designed to be consistent and fair for rates purposes - not to accurately predict what individual properties would sell for on the open market at any given time.

How Much Canterbury Properties Sell Above CV

In the Christchurch City area in early 2026, properties are selling approximately 7% above their CV on average - the highest ratio in the Canterbury region. This means a property with a $700,000 CV is selling for approximately $749,000 on average. However, this is a city-wide average that masks significant variation. Some properties sell substantially above their CV, others at or below it. Premium suburbs where values have grown significantly since the last revaluation often show larger above-CV premiums. Eastern suburbs with liquefaction risk and earthquake repair history may sell closer to or below CV.

Why CV and Market Value Diverge

CV and market value diverge because: CVs are set at a point in time and the market moves after the valuation date; mass assessment models cannot capture individual property characteristics, condition, presentation, and micro-location factors that significantly affect market value; and the purpose of CV is rates equity, not market prediction. A freshly renovated kitchen, a premium view, a school zone location, or a recently identified liquefaction risk can all shift market value substantially above or below the statistically modelled CV.

How to Use CV Correctly

The CV provides a relative benchmark - a rough starting point for assessing relative value between properties. It is most useful for: comparing relative values between properties in the same suburb (if one property has a higher CV than another in the same street, it is probably worth more); understanding roughly how a specific property sits in the broader market; and as a sanity check against extreme outliers. Never use CV as a substitute for actual comparable sales evidence when pricing a property for sale or making an offer to purchase.

CV data from Hayden Roulston (Christchurch council rates guide) and Opes Partners (Canterbury property markets). For general information only.