Definition
In law, erection means the act of constructing or raising a structure, or the completed structure itself. The term appears most frequently in statutes governing where and how buildings may be built — fire ordinances restricting wooden construction, zoning laws, and permit requirements — and courts have consistently interpreted it with a degree of precision that its ordinary usage does not carry.
The legal meaning is narrower than the physical act of "putting something up." Courts have held that erection means new construction or original building, and does not extend to repairing, altering, enlarging, or removing an existing structure. Moving a building from one location to another is likewise not an erection. The completed structure itself may also be called an erection, used as a noun.
Common Language
Modern common usage (Wiktionary): The act of building or putting up or together of something; anything so erected or built; formal approval and official establishment of an institution; and the physiological process by which erectile tissue becomes engorged with blood.
Historical common usage (Webster's 1913): The act of erecting or raising upright; the act of constructing a building or wall, or fitting together parts of a machine; the act of founding or establishing a commonwealth or office; also the state of being erected, lifted up, built, established, or founded.
The legal definition is not a departure from common usage so much as a deliberate narrowing of it. Ordinary speech might describe repair, renovation, or relocation as "putting up" or "erecting" something, but statutory interpretation has drawn a firm line: erection in a building statute means new construction, not modification or movement of what already exists. Researchers should not assume that a statute's prohibition on erection reaches work done to existing structures.
Common Confusion
The most significant source of confusion is between erection and related construction terms — alteration, repair, enlargement, and removal — which are sometimes grouped together in drafting but sometimes treated as legally distinct. When a statute prohibits erection without also naming these other acts, courts have refused to read them in by implication. A researcher analyzing a statutory restriction must determine whether the legislature chose erection alone, or whether it enumerated additional categories. The choice of words controls the scope.
Why It Matters in Research
The practical stakes of this definition arise in statutory construction cases involving building ordinances, fire codes, and zoning regulations. The repeated citation of the same cluster of 19th-century cases across Black's and Bouvier's — cases from New York, Massachusetts, Connecticut, Pennsylvania, and Illinois — signals that the definitional boundary was tested early and hardened quickly. Courts across multiple jurisdictions converged on the same result: erection means new, original construction.
Researchers working in historical legal materials should note that erection appears frequently in municipal fire ordinances from the mid-to-late 1800s, when wooden construction in dense urban areas was a serious regulatory concern. These ordinances often prohibited the erection of wooden buildings within specified districts. The question of whether a given act of construction qualified as an erection — rather than a repair or alteration — was therefore not academic but determined whether a property owner was in violation.
The term also appears in ecclesiastical and corporate law contexts, where erection means the formal establishment or constitution of an institution — a church, a monastery, a corporation. This usage is now rare in secular legal practice but may appear in older materials involving religious property or colonial-era charters. Researchers should distinguish between structural erection and institutional erection when reading historical sources.
In modern practice, erection has been substantially absorbed into the vocabulary of building codes and zoning law, where it typically appears alongside construction, alteration, and demolition as enumerated categories. Each term is usually defined in the code itself, reducing interpretive ambiguity — but historical cases applying the common-law definition may still be relevant when code definitions are absent or contested.
Historical Dictionary Support
Black's (1st Ed.), Black's (2nd Ed.), and Bouvier's are in substantial agreement. All three define erection as raising up, building, or a completed building, and all three confirm that the term excludes repair, alteration, enlargement, and removal in the context of building statutes. The 2nd edition of Black's is somewhat more useful for researchers because it supplies full case citations — Shaw v. Hitchcock, Martine v. Nelson, Douglass v. Commonwealth, Brown v. Hunn, and Gary v. People — whereas the 1st edition and Bouvier's give only abbreviated reporter references.
Bouvier's adds one noteworthy detail: the moving of a building is not an erection, citing 121 Mass. 229. This point is implicit in the other sources but explicit in Bouvier's, and it may be relevant in historical cases involving the relocation of structures.
None of the historical dictionaries addresses the ecclesiastical or institutional sense of erection in any depth, nor do they treat the term in a zoning or modern regulatory context, which postdates these dictionaries. Researchers extending the analysis beyond 19th-century building ordinances will need to consult modern treatises and code definitions directly.
Jurisdictional Note
The core definition — erection as new construction, not repair or alteration — was applied consistently across New York, Massachusetts, Connecticut, Pennsylvania, and Illinois in the 19th-century cases that anchored the dictionaries. Modern jurisdictions generally define erection by statute or ordinance within their own building codes, and those definitions control. Where a code is silent, the historical case law consensus provides a reliable default.