Lacombe's architectural landscape mirrors its diverse cultural history. Early structures were influenced by French and Spanish colonial styles, featuring simple, functional designs suited to the subtropical climate. These early homes were often raised on piers to protect against flooding, with steeply pitched roofs covered in cypress shingles—a locally sourced material prized for its durability and resistance to rot.

As the community evolved in the 19th and early 20th centuries, Creole cottages and shotgun houses became prevalent. These homes often featured wraparound porches, high ceilings, and gabled roofs, designed to maximize ventilation and shade. Metal roofs, particularly tin, were introduced during this period for their longevity and ability to reflect heat.

The mid-20th century brought new architectural styles to Lacombe, including ranch and bungalow homes. These structures typically had low-pitched roofs with asphalt shingles, a popular choice for their affordability and ease of installation. Many homes from this era also incorporated elements of Southern architecture, like large, shaded porches.