Definition
A civil law servitude — derived from Roman law — consisting of the right to build one's structure to whatever height one chooses. The term translates roughly as "the right to build higher." In Roman and civil law systems, this right was generally presumed to exist in every property owner unless limited or extinguished by a contrary title, agreement, or competing servitude. The inverse servitude — altius non tollendi — operates as the restriction: a burden on land prohibiting the owner from building beyond a certain height, typically for the benefit of a neighboring property.
The two concepts are inseparable in practice. Altius tollendi names the affirmative freedom; altius non tollendi names the servitude that curtails it. A researcher encountering either term should read them together.
Common Confusion
Altius tollendi is frequently encountered in contrast to altius non tollendi, and the two are sometimes conflated or misread as variants of a single servitude. They are opposites. Altius tollendi is the right to build upward without restriction — the default condition of ownership in civil law. Altius non tollendi is the burden imposed on a property by agreement or title that removes that freedom for the benefit of a neighbor. When historical sources mention only one, the other is implicitly the baseline against which it operates.
Why It Matters in Research
This term appears almost exclusively in sources grounded in Roman law and its civil law descendants — Louisiana, Quebec, and other mixed or civil law jurisdictions — as well as in historical treatises on property and servitudes. Researchers in common law jurisdictions will encounter altius tollendi primarily in foundational property treatises and comparative law discussions, not in case law or statutes.
The practical significance for corpus research is navigational: altius tollendi rarely appears as a standalone doctrine in American common law materials. When it surfaces, it typically marks either a civil law jurisdiction source, a scholarly comparative treatment, or a historical discussion of the Roman law roots of easement and servitude doctrine. Its presence is a jurisdictional signal.
Researchers building from this term toward modern doctrine should track forward into American servitude law through the concepts of negative easements and restrictive covenants, which absorbed much of the function of civil law height servitudes in common law systems. The civil law framework treats the absence of restriction (altius tollendi) as the default; the common law framework reaches similar outcomes through different doctrinal architecture.
The Digest reference (Dig. 8, 2, 4) cited in Black's points to the Justinianic Digest, Title 8.2, which concerns servitudes in Roman law. This is a real and locatable primary source for researchers working in legal history or comparative law.
Historical Dictionary Support
Black's Law Dictionary (both editions) and Bouvier's Law Dictionary are in close agreement. All three define altius tollendi as the civil law servitude permitting unrestricted building height, note that it is the general default condition of ownership, and identify the limiting exception as a "contrary title." Black's (1st Ed.) adds the Digest citation and a reference to Sandars' edition of Justinian's Institutes — a real 19th-century treatise widely used as an authority on Roman law in American legal education.
The definitions are notably brief across all three sources. None of the historical dictionaries develops the doctrine in depth, reflects on its relationship to common law equivalents, or discusses American reception. This brevity is itself informative: these dictionaries treated altius tollendi as a reference point for civil law literacy rather than as operative doctrine requiring extended treatment. Researchers should not expect these entries to carry them far beyond identification of the term.
Jurisdictional Note
Altius tollendi as a named doctrine belongs to civil law jurisdictions. In Louisiana — the primary American civil law jurisdiction — height servitudes and related restrictions on construction are governed by the Louisiana Civil Code's treatment of predial servitudes. Common law jurisdictions address equivalent concerns through negative easements, restrictive covenants, and zoning regulation, without adopting the Roman terminology.
Encyclopedia Cross-Reference
See Law Mind Encyclopedia: Servitudes; Easements; Predial Servitudes (Civil Law)