anonymous apartment architecture balcony berlin building flat flats high-rise high-riser home large lichtenberg living place modern multi-storey multi-story Plattenbau residence residential skyscraper tall tenement tower tower block tower building window windows glasgow shape shapes triangular accommodation apartment-blocks beach block-like blocks buildings condo condominium contrast costly expensive foliage green greenery height high highrise highrise-accommodation homes Hong-Kong park perspectives population pricey property residential-area sand shrubbery shrubs tower-blocks towering trees units urban-area value vegetation views wealth wealthy angles angular apartments balconies box-like city complex concrete designed detailed distinctive elements exterior external glass heights light linear lines metal modernistic patterns plain quality safety straight structures style valuable dynamic facade germany boxed connected connections hill hillside hilltop houses mountains mountainside mountaintop sloped slopes squared structure structured walls art-deco contrasting dark façade heritage historic protection supports