Right next to the Broad Axe Tavern is the "Ellendale" mansion, now occupied by Frontline Pharmaceuticals.
The architectural style of this building is stunning. Based on the features of this property, it's mostly Georgian. Originally, it was constructed by stone based on the 1916 map. It was later covered with stucco, which is pretty common on almost every historic property in Whitpain Township.
With little photographic analysis, I relied on Google Maps. Below I provided a list of what features this former mansion currently has
4 Gabled dormers
Unpedimented Door Surround with entablature
Side-Gabled Roof- "About 40 percent of surviving Georgian houses are of this type, which is the most common in the northern and middle colonies, but also occurs in the southern colonies." (McAlester, 201)
6/6 window sashes; double-hung (possibly added after the 18th century)
If this architectural style is Gerogian, then this property must be built around the 18th century. But there was no confirmation about when the property was built. I took a look at who owned the property from the maps provided below, and corresponding them from the 1850 census data, and matching their property with the building. Unfortunately I couldn't find any earlier owners of "Ellendale," but what I could find was a man named "Anthony Hallman."
TIP: To determine the match of a property on historical maps, you have to look at how much land they occupied. For example, how I found Anthony Hallman as the property owner was by looking at how many acres of land he owned. I compared the 1893 map and the 1916 map, and they were VERY close. I was VERY certain the "Ellendale" mansion was owned by Anthony Hallman.
I would expect to find something about him, but I didn't. It was only the 1850 census data that mentioned his name, age, and occupation along with a list of his family members. According to the census, Anthony Hallman was a farmer, and was 47 years old in 1850.
With all the information I could find, here's a brief biography of Anthony Hallman and his family based off from Ancestry:
Anthony Hallman (1802-1891)
Son of George and Sarah (Mitchell) Hallman (married on March 26, 1796 in Philadelphia)
Married Jane Conard (1806-1883)
Mary Ann (1844-1878)
Anthony C. (1846-1861)
Charles Ellis (1848-1914)- found on Find a Grave
The saddest discovery was that the youngest child of Anthony and Jane was the only child found from the Find a Grave website.
Clemens, William Montgomery. Genealogy: A Journal of American Ancestry, Volumes 6. (New York: William M. Clemens, 1916): 169.
"Distance Calculator." DaftLogic. Accessed May 30, 2020. https://www.daftlogic.com/projects-google-maps-distance-calculator.htm.
"Find A Grave." Find A Grave. Accessed May 30, 2020. https://www.findagrave.com.
Hopkins, G.M. Atlas of Montgomery County, Pennsylvania, Page 031, 1871.
McAlester, Virginia Savage. A Field Guilde to American Houses. (New York: Alfred A. Knopf, 2017): 201-214.
Mueller, A. H. Atlas of the North Penn Section of Montgomery County, Pa., Plate 28, 1916.
Smith, J. L. Montgomery County 1893, Whitpain and Worcester Townships, Bethel Hill, Fairview, Cedar Hill, Washington Square, Broad Axe Left, 1893.