I couldn't find with Ctrl-F "inflation" in the linked methodogy: https://www.spglobal.com/spdji/en/documents/methodologies/methodology-sp-corelogic-cs-home-pric

I couldn't find with Ctrl-F "inflation" in the linked methodogy: https://www.spglobal.com/spdji/en/documents/methodologies/methodology-sp-corelogic-cs-home-price-indices.pdf https://www.spglobal.com/spdji/en/documents/methodologies/me... so presumably not inflation adjusted.