Block of Flats in Nigeria: What It Is, Who Invests & How It Works

Owning or building a block of flats is one of the most common property investment strategies among Nigerian middle and upper-class investors. A block of flats generates multiple rental income streams from a single title — making it an attractive alternative to buying separate properties. This guide explains what a block of flats is in the Nigerian context, how it works as an investment, and what you need to understand before buying or building one.

What is a block of flats?

A block of flats in Nigeria is a building that contains multiple self-contained flat or apartment units under a single ownership and a single title document (typically one Certificate of Occupancy covering the whole plot and building).

Key characteristics:

• Single landlord ownership: All units are owned by one person or entity — the block is not divided into separately owned units (unlike a condo or co-ownership structure)
• Multiple tenancies: Each unit is let to a separate tenant under its own tenancy agreement
• Common areas: Corridors, staircase, external compound, roof, and infrastructure are all the landlord's responsibility
• Single title: One C of O covers the entire plot and building

Typical block of flats structures in Nigeria

• 4-unit block: Two units on ground floor, two on first floor. Common on smaller plots in mid-tier residential areas. Often built as 2-bedroom or self-contained units.
• 6-unit block: Three units per floor across two floors, or two units per floor across three floors.
• 12-unit block: Larger investment — typically 3–4 floors, 3–4 units per floor.
• Mixed-type block: Some blocks contain different unit sizes — e.g., shops on the ground floor and residential flats above (commercial-residential mixed).

Block of flats as an investment

Why it works well

• Diversified income: If one unit is vacant, the others continue generating rent — reducing the risk of zero income
• Economies of management: Managing 6 units in one building is far more efficient than managing 6 separate properties in different locations
• Single site maintenance: One building to maintain, one contractor relationship to manage
• Strong demand: Flats are the most-searched rental product in Nigerian cities — blocks of flats in good areas rarely stay empty for long
• Lower entry cost per unit than buying separate flats: Building a block yourself is typically cheaper per unit than buying individual completed flats

Yield calculation for a block of flats

Apply the standard rental yield formula across all units:

Gross Yield = (Total Annual Rent from All Units ÷ Total Cost of Building or Purchase) × 100

Example: A 6-unit block of 2-bedroom flats. Total construction cost (including land) = ₦120,000,000. Each unit rents for ₦1,500,000 per year. Total annual rent = ₦9,000,000. Gross yield = (₦9,000,000 ÷ ₦120,000,000) × 100 = 7.5%.

See our rental yield calculation guide for how to calculate net yield after costs.

What landlords of blocks of flats must manage

• Multiple tenant relationships: Each tenant has their own lease, pays their own rent, and has their own maintenance issues
• Common area maintenance: Cleaning, lighting, and upkeep of corridors, staircase, and compound are the landlord's responsibility
• Generator and borehole management: If the building has shared generator or borehole, fuel costs, maintenance contracts, and allocation rules must be managed
• Tenant-to-tenant disputes: Noise complaints, parking, refuse — the landlord is often the mediator
• Security: Access control to a multi-unit building requires more attention than a single-family house

Many block-of-flats landlords engage a property manager to handle day-to-day operations. See our property management costs guide.

Title for a block of flats

A block of flats typically has a single C of O covering the whole site. If you are buying an existing block, verify that:

• The C of O covers the building as constructed (not just the land — some C of Os are issued for land before construction)
• The building was constructed with valid building plan approval
• No individual flats have been separately sold out of the building (which would create a title complication)

Related guides: Rental Yield Nigeria, Property Management Costs Nigeria, Landlord Guide Nigeria, Real Estate Investment Nigeria.