Bill of Quantities for a 3-Bedroom Bungalow in Nigeria — Full Example (2026)

What Is a Bill of Quantities and Why Does Every Nigerian Building Project Need One?

A Bill of Quantities (BoQ) is a structured document that lists every item of work, material, and labour required to complete a construction project. It provides quantities, unit rates, and costs for each line item — giving you a precise budget before a single block is laid. Without a BoQ, Nigerian self-builders typically overspend by 30 to 60 percent on their first project, largely due to incomplete budgeting, contractor price inflation, and uncontrolled material procurement.

For a 3-bedroom bungalow in Nigeria, a properly prepared Bill of Quantities typically contains 80 to 120 line items across 8 to 10 work sections. It is the document that separates self-builders who finish on budget from those who run out of money at the window stage. This guide walks through every section with realistic 2026 Nigerian prices — so you know exactly what a complete BoQ looks like and what it should cost.

The 10 Standard Sections of a Nigerian Residential BoQ

Quantity Surveyors in Nigeria follow the Standard Method of Measurement (SMM) adapted for local conditions. A residential BoQ is divided into these sections, always presented in the order the work is actually built:

1. Preliminaries and Site Preparation
2. Substructure (Foundation and Ground Slab)
3. Walling and Superstructure
4. Roof Structure and Covering
5. Joinery (Doors and Windows)
6. Internal Finishes (Plastering, Screeding, Tiling)
7. External Finishes (External Rendering and Painting)
8. Plumbing and Drainage
9. Electrical Installation
10. External Works (Fencing, Gate, Paving, Borehole)

Each section has a subtotal. All subtotals are carried to a Summary Page where contingency (10 to 15 percent) and professional fees are added to produce the total project budget. Any contractor who cannot price each section individually — or who gives you a single lump sum without a breakdown — cannot be properly evaluated or compared against other bids.

Section 1 — Preliminaries and Site Preparation

Preliminaries cover the contractor's overheads and site setup costs. For a 3-bedroom bungalow, these typically run ₦300,000 to ₦800,000 and include site clearing and levelling, temporary site office and storage, safety fencing, welfare facilities for workers, and contractor's public liability insurance. Many Nigerian self-builders skip this section entirely in their budgets, then discover it accounts for 3 to 5 percent of total project value when the contractor's bill arrives.

Section 2 — Substructure (Foundation)

Foundation costs for a 3-bedroom bungalow vary significantly with soil conditions. On stable laterite soil common in Abuja, Ibadan, and Enugu, a strip foundation costs ₦1.2M to ₦2.8M. On soft, sandy, or waterlogged soil found in Lagos Island, Lekki, and coastal areas, a raft foundation costs ₦2.5M to ₦5.5M. Never start construction without a soil investigation test — a geotechnical report from a certified firm costs ₦80,000 to ₦250,000 and can save you millions by specifying the correct foundation type.

Section 2 subtotal (standard Lagos): ₦4,969,000

Section 3 — Walling and Superstructure

Block work is typically the single largest BoQ section for a single-storey bungalow, representing 20 to 28 percent of total construction cost. A 3-bedroom bungalow uses 2,500 to 3,500 nine-inch hollow sandcrete blocks for external walls and 400 to 600 six-inch blocks for internal partitions. The reinforced concrete frame — columns, ring beams, and lintels — is priced separately and is critical for structural integrity.

Section 3 subtotal: ₦6,645,000

Section 4 — Roof Structure and Covering

Roofing accounts for 12 to 18 percent of total project cost for a 3-bedroom bungalow. Nigerian builders choose between long-span aluminium sheets (the most affordable option), stone-coated steel tiles (mid-range, popular in urban areas), and concrete or clay tiles (premium). The roof structure — timber trusses, wall plates, purlins, and bracing — is priced separately from the covering material, and both must appear in the BoQ.

Section 4 subtotal: ₦3,497,800

Section 5 — Joinery (Doors and Windows)

Joinery costs for a 3-bedroom bungalow with a master bedroom, two regular bedrooms, a living room, kitchen, and two bathrooms typically run ₦1.2M to ₦3.5M depending on the quality of doors and window frames chosen.

Section 5 subtotal: ₦2,090,000

Section 6 — Internal Finishes

Internal finishes — plastering, floor screeding, tiling, and painting — typically account for 18 to 25 percent of total project cost and have the greatest impact on the finished appearance of the house. The quality gap between economy and luxury finishes is most visible here.

Section 6 subtotal: ₦6,767,000

Sections 7 to 10 — Summary

Complete BoQ Summary — 3-Bedroom Bungalow (2026)

These figures cover construction only and exclude land, professional fees (8 to 12 percent), statutory approvals, and furniture. Always add a 15 percent contingency on top of your BoQ total before agreeing a contract sum.

How to Use a BoQ to Control Contractor Costs

Once you have a priced BoQ, it becomes your most powerful tool for managing the project. Here is how experienced Nigerian self-builders use it:

• Stage payments: Tie contractor payments to BoQ milestones — for example, pay Section 2 (foundation) amount only when the foundation and ground slab are complete and inspected. Never pay ahead of completed work.
• Material procurement: Use the BoQ material quantities to purchase directly from suppliers, cutting out the contractor's markup on materials (typically 15 to 30 percent). Buy cement, blocks, and iron rods yourself based on the BoQ quantities.
• Variation control: Any design change during construction must be priced using the same unit rates in the original BoQ. If the contractor claims a variation costs more than the BoQ rates suggest, you have grounds to negotiate.
• Final account: At project completion, the QS reconciles actual quantities used against the BoQ quantities to produce a final account. This prevents contractors from charging for materials not used.

Frequently Asked Questions About the 3-Bedroom Bungalow BoQ

How many blocks are in the BoQ for a 3-bedroom bungalow? A typical 3-bedroom bungalow BoQ includes 2,800 to 3,200 nine-inch hollow sandcrete blocks for external walls plus 400 to 600 six-inch blocks for internal partitions — a total of 3,200 to 3,800 blocks. Substructure blocks below the DPC are additional.

How many bags of cement does the BoQ show? A complete 3-bedroom bungalow BoQ accounts for 420 to 580 bags of cement across all sections — foundation concrete, block mortar, column casting, floor screed, plaster, and tile bedding.

Can I use the BoQ to get a bank loan? Yes. Most Nigerian mortgage and cooperative lenders require a BoQ prepared by a registered Quantity Surveyor before approving construction finance. The BoQ demonstrates that the loan amount matches the actual construction cost.

How often should I update the BoQ during construction? Reprice your BoQ every 6 months during a long construction period. Nigerian material prices — particularly cement and iron rods — can increase 20 to 40 percent in a single year.

Get Your Free 3-Bedroom Bungalow BoQ

A professionally prepared Bill of Quantities from a Quantity Surveyor in Nigeria typically costs ₦150,000 to ₦600,000. You can generate a detailed, itemised BoQ for your 3-bedroom bungalow free of charge using our Nigeria BoQ Generator — just enter your house dimensions, location, and finish level to get an instant breakdown across all 10 work sections, complete with current 2026 market rates.