The sloping land on which architects Ignacio de la Vega and Pilar Cano-Lasso decided to build their home dictated a different kind of architecture than the one they initially envisioned: something small, site sensitive, and simple. These principles jived more with their core design ethos, anyway. The couple, founders of Madrid firm Delavegacanolasso, pride themselves on compact, modular homes that easily adapt to a site.