The blue numerals, in the following diagram, are lot numbers that were assigned by Conrad Darr, when he platted Darrtown in 1814.
The village square is denoted by the green square in the center of the diagram below.
Lots 60, 61, 68, and 69 in the center of Darrtown are split vertically, north to south, to form four half-lots that comprise the Darrtown's village square. Conrad Darr stipulated in the original plat that these four half-lots are to be pubic space in perpetuity.
Metrics of Darr's plat
The following language appeared in Conrad Darr's original application to the court of Butler County, Ohio.
"Darr's town is laid off in the South West corner of Section numbered twenty eight in township numbered five of Range number two East of the Meridian line drawn from the mouth on the great Miami River in the county of Butler and State of Ohio.
The course of Main street is North thirty minutes West the course of Oxford Street is North eighty nine degrees and thirty minutes East, all the other streets and alleys are parallel to one or of said Streets, the streets are each three (poles-16.5 ft. ea.) in width, except Main street and Oxford Street, which are four poles wide, the alleys are each one pole wide.
The lots marked A. B. C. D. are each six poles square and are to be appropriated to publics uses. The half-lots numbered 60, 61, 68, 69 are each six poles square and all the residue of the in lots are each twelve poles in length from east to west by six poles in width from north to south containing each seventy-two square poles.
The out lots are twenty-four poles north and south by twenty poles east and west contain each three acres of land."
When Conrad Darr platted Darrtown, he used a unit of measurement known as a "pole" - which is 16.5 feet in length.
Therefore, each in-lot in Darrtown measures:
> 12 poles (198 ft.) in length - from east to west
> 6 poles (99 ft.) in width - from north to south
More information about the village plat is available at: 1868 map of Darrtown illustrates Darr's plat of village
