Navy Private is still Ordnance and Admiralty Land.

Navy Private is one minute away from the Dow's Lake parking lot. The Rideau Canal has a 30-metre (98 foot) buffer zone that cannot be intruded upon by construction of a provincial hospital (for example) ever since the waterway was designated a UNESCO World Heritage Site in 2007.

"The Department of National Defence has maintained its presence at the northeast corner of the CEF (Central Experimental Farm) since the Second World War. HMCS Carleton now functions as a naval reserve unit in the building adjacent to Dow's Lake. The property is the last remaining land from the British Ordnance reserve of the mid-1800's." (From: CEF National Historic Site Management Plan (5 of 20.) Ordnance and Admiralty land is reserved for the defence of Canada.

House of Commons Ottawa. December 21, 1963. Parliament Hill. "Notes on civil law respecting their ownership, management and control and the rights therein of Federal and Provincial Crown Parliamentary and Judicial authorities. Legal Title With the exception of the years 1802-1823, Parliament Hill has been owned by the Crown - successively by the Crown Imperial, the Crown Provincial and the Crown Federal. Since 1823 the Crown has always held these lands for public purposes-either of defence or generally."

"In 1823 the Earl of Dalhousie, the Governor, purchased the Hill from Hugh Fraser on behalf of the British Crown and by letter, entrusted its control and management to Colonel John By with instructions that the Hill, together with Major Hill and Nepean Point, be reserved for military purposes. About 1857 the British Crown transferred the Ordnance (or military) land-these including the Hill, together with the Rideau Canal land, to the Government of Upper Canada."
 

The Ordnance and Admiralty Lands Act - RS 1927. Military Properties in Canada Transferred to the Government of the Late Province of Canada---(Locations in the Capital). Rideau and Ottawa Canals, City of Ottawa Barracks, Blockhouses and Adjuncts of the Canals.

Major's Hill Park was an Ordnance property: House of Commons Ottawa, July 6, 1908. Grand Trunk Railway Hotel Site. Member of Parliament Haughton Lennox: "...You are practically giving the company the use of a large park which is the most beautiful in the city of Ottawa. It is idle to talk of $100,000 dollars for so many feet of property. I get angry when I talk about this. I get so indignant at this proposal that I find it hard to keep my temper. But if we are going to dispose of this property I would point out that there are special provisions that have to be met before we sell ordnance land."