The taxman has so far enlisted a total of 52,000 landlords against a target of 100,000.
The marketplace is dominated by quacks looking to make quick money doing shoddy work.
The state should offer incentives to encourage builders to focus on affordable homes.
Kenya's construction sector to grow by 8.7% in 2024, steady until 2026.
New deal is expected to kick-start the project that has delayed for three years.
The labour crunch has forced some developers to turn to uncertified artisans.
Initiative seeks to equip local craftsmen with skills to match the needs of the market.
Developers had last year enjoyed low prices due to high output by Chinese firms.
The industry contributes about 5 per cent of the Kenyan economic output.
The project will involve construction of 560 apartments on 14 blocks at Clay Works.