subdivision by creschooldev | Jun 23, 2017 subdivision A tract of land divided by the owner, known as the subdivider, into blocks, building lots, and streets according to a recorded subdivision plat, which must comply with local ordinances and regulations. Related Articles: Glossary: density zoningGlossary: legal descriptionGlossary: lot-and-block descriptionGlossary: platGlossary: prospectus