Walk through older parts of Lagos Island or Yaba and you'll notice something the new glass towers along the waterfront tend to lack: shade. Deep eaves. Covered balconies. Arcades along shopfronts. Louvred windows that let breeze through and keep sun and rain out. These weren't decorative choices. They were how people made buildings liveable in a hot, humid, rain-heavy climate before air conditioning.

Somewhere along the way, a lot of that knowledge was set aside. Much contemporary development in Lagos borrows its image from Dubai or London: sealed façades, large expanses of glass and a heavy reliance on mechanical cooling. It photographs well. It is often uncomfortable to live in and expensive to run.

Heat is a design problem before it's an equipment problem

In a city where grid power is unreliable, every unit of heat a building absorbs becomes a cost. It has to be pulled out by an air conditioner, and that air conditioner often runs on diesel. A west-facing glass wall means a bigger cooling load, a larger generator and higher service charges, month after month.

Research on mass housing in Africa, including a study in Sustainability by Ascione and colleagues, has found that passive design measures such as shading, orientation, insulation and ventilation can greatly improve thermal comfort and cut energy demand. None of this is new. What's new is how much it now matters, as energy costs rise and climate conditions become more extreme.

Shade as infrastructure

It helps to think of shade as infrastructure rather than ornament. A deep overhang protects windows from direct sun and driving rain. A veranda gives a family usable outdoor space for much of the day. A covered walkway lets residents move between buildings in a downpour without getting soaked. A tree canopy over a car park lowers surface temperatures and makes the walk from car to door bearable.

These elements do several jobs at once. The UN Environment Programme has pointed to traditional African building practices, including shaded courtyards, thick walls and natural ventilation, as sources of sustainable solutions for today's cities. The lesson isn't to copy old buildings. It's to understand why they worked, then apply the same logic with modern materials and methods.

Designing for the rainy season too

Lagos design has to answer two climates: the relentless heat and the heavy seasonal rain. Shade handles both. An overhang that blocks sun also keeps rain off walls and windows, which slows weathering and cuts maintenance. A canopy at the entrance means residents arrive dry. Covered drop-off areas matter in a city where many people arrive by car or ride-hailing.

The details count. Gutters sized for tropical downpours. Finishes that tolerate humidity without mould. Balcony drainage that doesn't stain the façade. These are the things that decide how a building looks in year ten, long after the launch photos have been taken.

Trade-offs worth talking about

Shade isn't free. Deep balconies and overhangs add construction cost and can eat into saleable floor area. Screens and louvres need upkeep. Poorly designed shading can make rooms too dark or trap humid air.

That's why the design has to be specific. The right depth of overhang depends on orientation. A screen that works on a low-rise block may not suit a tower exposed to high winds. Good climate design is not a style you apply. It's a set of decisions made for this site, this sun path and these residents.

What this means for how we build

For Terra Vista, climate response starts at the first sketch, not the final specification. We ask where the sun falls through the day and across the year, where the breeze comes from, how rain will move across the site and how residents will actually use their outdoor space.

The goal is buildings that stay comfortable with less machinery, cost less to run and age well in the climate they sit in. A building that belongs in Lagos should feel like it understands Lagos weather. Shade is where that understanding begins.

Sources

1. Ascione, F. et al., "Sustainable Solutions for Mass-Housing Design in Africa: Energy, Comfort, and Environmental Quality", Sustainability, 2021.

2. UN Environment Programme, Traditional building practices offer sustainable solutions for African cities, 2024.