Check for Provide an accessible overview (MOS:INTRO): Done
Major Point 1: History "The Colross estate was originally developed as a plantation by Alexandria merchant John Potts, who began construction of the mansion between 1799 and 1800. In 1803, the property was purchased by Jonathan Swift, an Alexandria merchant and city councilman. Swift continued the mansion's construction during his ownership. Thomson Francis Mason (1785–1838), son of Thomson Mason (1759–1820) and grandson of Founding Father George Mason (1725–1792) of Gunston Hall, purchased Colross following Swift's death in 1824. Mason served as a judge of the Criminal Court of the District of Columbia and as Mayor of Alexandria. During his ownership, Mason made Colross his chief homestead and undertook substantial modifications and additions to the mansion. After a series of successive ownerships, the area around Colross became heavily industrialized and the mansion was purchased by John Munn in 1929. Between 1929 and 1932, the mansion was transported brick by brick to Princeton. In 1958, Colross was sold to Princeton Day School. It currently serves as an administration building for the school, housing its admission and advancement offices." (summarised well in the lead)
Major Point 2: Architecture "The Colross mansion is a two-story brick Georgian style structure, featuring an architectural plan similar to Mount Vernon and Woodlawn, and originally flanked by two wings. The front entrance is covered by a spacious Neoclassical portico supported by wooden Doric columns. The roof is topped by a balustraded deck and further embellished by three dormer windows. The Colross property originally occupied the entire 1100 block of Oronoco Street." (summarised well in the lead)
Major Point 3: Archeological excavation "Following its purchase by a real estate development company in 2005, an excavation of the Colross archaeological site began between March and June 2005 at the behest of the city of Alexandria. Archaeologists uncovered an underground domed brick cistern and evidence of slave outbuildings, in addition to the foundations of the estate's exterior walls and several ancillary structures. The excavation of the Colross site resulted in 79 condominium buyers walking away from their purchase agreements, due to the delay in construction of the luxury Monarch Condominium project." (summarised well in the lead)
Major Point 4: Significant Mason family events "" (not a concise summary of the corresponding section in the body)
Check for Relative emphasis: Done
Major Point 1: History "The Colross estate was originally developed as a plantation by Alexandria merchant John Potts, who began construction of the mansion between 1799 and 1800. In 1803, the property was purchased by Jonathan Swift, an Alexandria merchant and city councilman. Swift continued the mansion's construction during his ownership. Thomson Francis Mason (1785–1838), son of Thomson Mason (1759–1820) and grandson of Founding Father George Mason (1725–1792) of Gunston Hall, purchased Colross following Swift's death in 1824. Mason served as a judge of the Criminal Court of the District of Columbia and as Mayor of Alexandria. During his ownership, Mason made Colross his chief homestead and undertook substantial modifications and additions to the mansion. After a series of successive ownerships, the area around Colross became heavily industrialized and the mansion was purchased by John Munn in 1929. Between 1929 and 1932, the mansion was transported brick by brick to Princeton. In 1958, Colross was sold to Princeton Day School. It currently serves as an administration building for the school, housing its admission and advancement offices." (the lead gives due weight as is given in the body)
Major Point 2: Architecture "The Colross mansion is a two-story brick Georgian style structure, featuring an architectural plan similar to Mount Vernon and Woodlawn, and originally flanked by two wings. The front entrance is covered by a spacious Neoclassical portico supported by wooden Doric columns. The roof is topped by a balustraded deck and further embellished by three dormer windows. The Colross property originally occupied the entire 1100 block of Oronoco Street." (the lead gives due weight as is given in the body)
Major Point 3: Archeological excavation "Following its purchase by a real estate development company in 2005, an excavation of the Colross archaeological site began between March and June 2005 at the behest of the city of Alexandria. Archaeologists uncovered an underground domed brick cistern and evidence of slave outbuildings, in addition to the foundations of the estate's exterior walls and several ancillary structures. The excavation of the Colross site resulted in 79 condominium buyers walking away from their purchase agreements, due to the delay in construction of the luxury Monarch Condominium project." (the lead gives due weight as is given in the body)
Major Point 4: Significant Mason family events "" (the lead does not give due weight as is given in the body)
Colross (also historically known as Belle Air and Grasshopper Hall) is a Georgian mansion and former estate in Old Town Alexandria in the U.S. state of Virginia.
Check for Format of the first sentence (MOS:BOLDTITLE): Done
Check for Proper names and titles: Done
Check for Abbreviations and synonyms (MOS:BOLDSYN): None
Paragraphs should be short enough to be readable, but long enough to develop an idea. (WP:BETTER)
Fix "According to the Alexandria Economic Development Partnership, 79 condominium buyers walked away due to the construction delay." in the Archeological excavation section.
Check for Standard appendices and footers (MOS:APPENDIX): Done
"the grounds included a whole square block and were enclosed with an ancient brick wall ten feet in height."[9]
"never stay locked more than three days" at a time.[9][15]
"giggling, singing, and talking" … .[9]
"fine house and ground and the chief residence of the Masons of Alexandria, much frequented by officers of the army." … "hospitality and civility of the head of the house," [14]
"had no gaslights, and running water only in the kitchen," … "stood in the midst of railroad tracks." … "elegant plaster ceilings" … "great oak doors" [17]
"largest and most beautiful mansion ever erected in Alexandria."[20]
Check for Likely to be challenged: Done
Check for Contentious material about living persons (WP:BLP): NA
Caption 1: "Colross, photographed in 1916" succinct and informative
Caption 2: "The front portico and main entryway at Colross." succinct and informative
Caption 3: "Architectural drawing of the front elevation of Colross." succinct and informative
Caption 4: "Architectural details of Colross." succinct and informative
I'm glad to see your work here. The prose quality in particular is meticulous and engrossing. As per the above checklist, I do have some insights that I think will be useful in improving the article:
I think the lead can be improved in order to provide an accessible overview and to give relative emphasis for the Significant Mason family events.
I think the layout needs to be fixed.
Besides that, I think the article looks excellent. Caponer, please feel free to strike out any recommendation you think will not help in improving the article. All the best,