Freehold. Hyll On Holland plot is a combination of two previous developments: a. Hollandia and b. The Estoril. Hollandia and Estoril were formerly six storeys high. Hollandia has only 48 apartments built in mid 1980s.  The Estoril is a six storey had a total of 44 apartment units that comprises of 40 apartments and four penthouses.