Protest song against uniformity, barely 1'30" short. See also: What Have They Done To The Rain and Morningtown Ride. Studio version on Broadside Ballads Vol 2. His live version at Carnegy Hall became a hit US. Translated into Russian and Japanese (where they know a thing or two about living on top of each other).
Malvina Reynolds [author on Columbia lp MR Sings The Truth; her copyright was established in 1962]
Kate & Anna McGarrigle [in '03 as Petites boites]
Elvis Costello [under opening credits tv-series Weeds (second season); in later episodes sung by Engelbert Humperdinck, Death Cab For Cutie...]
Randy Newman [idem during third season; in later episodes sung by: Joan Baez, Donovan, Billy Bob Thornton, The Shins, Michael Franti, The Individuals, Angelique Kidjo...]
It has never been ruled out in court but the melody slightly reminds Bob Merrill's composition Pittsburgh, Pennsylvania, top 5 US for Guy Mitchell ('52 - Columbia), covered by Bing Crosby and in Holland by Helma & Selma (as Liefste Wil Je Met Me Trouwen).