How Much Does It Cost to Renovate a House in Nigeria? 2026 Room-by-Room Guide

"How much does it cost to renovate a house?" is one of the hardest questions to answer with a single number, because renovation cost depends enormously on which rooms need work, how extensive that work is, and what finish level is chosen. This guide breaks 2026 Nigerian renovation costs down room by room across finish tiers, using the pricing structure behind our free Renovation Calculator.

The Four Finish Tiers

Nigerian renovation work is commonly priced across four finish levels, each reflecting a different quality and cost of materials and finishing detail:

Renovation Cost by Room Type (Standard Finish)

As a general planning guide at the standard finish tier, per typical room size:

• Kitchen (full renovation — cabinets, countertop, sink, tiling, plumbing points): among the most expensive rooms per square metre to renovate, due to the concentration of fittings, plumbing and electrical work in a relatively small space.
• Bathroom (full renovation — tiling, sanitary fittings, plumbing): similarly fitting-intensive per square metre, with cost driven heavily by the quality of sanitary ware and tile chosen.
• Bedrooms (flooring, painting, minor electrical): lower cost per square metre than kitchens and bathrooms, since the work is mostly surface finishes without extensive plumbing or built-in fittings.
• Living/sitting room (flooring, painting, ceiling work): similar to bedrooms in scope, though often larger in area and sometimes including a ceiling upgrade.

The consistent pattern across Nigerian renovation projects is that kitchens and bathrooms cost dramatically more per square metre than bedrooms and living spaces, purely because of the concentration of expensive fittings — sinks, cabinets, tiles, plumbing points — packed into a small area.

Worked Example: A 3-Bedroom Bungalow Full Renovation

A 3-bedroom bungalow, standard finish throughout, needing a full room-by-room renovation:

Total: roughly ₦3,530,000 for a full standard-finish renovation of this bungalow. Choosing premium finishes throughout would typically push this 40–70% higher, while an economy renovation could bring it down by 20–30%, depending on exactly which corners are cut and where.

Full Renovation vs Selective Room Renovation

Not every renovation needs to cover the whole house at once. A common and financially sensible approach is prioritising the rooms with the worst condition or the highest daily-use impact — typically the kitchen and bathrooms — and deferring cosmetic bedroom or living room work to a later phase if budget is constrained. This phased approach lets a homeowner spread renovation cost over time while addressing the most functionally important spaces first.

Common Renovation Costing Mistakes

• Budgeting a flat per-square-metre rate across all room types. Kitchens and bathrooms cost dramatically more per square metre than bedrooms — a single blended rate misrepresents where the money actually goes.
• Not accounting for plumbing and electrical work separately. These whole-house allowances are easy to underestimate if only surface finishes (tiling, paint) are budgeted.
• Mixing finish tiers without a clear plan. Deciding room by room without an overall strategy can lead to a visually inconsistent result and, sometimes, an unplanned cost overrun as "just this one room" premium upgrades accumulate.
• Ignoring structural or plumbing issues uncovered mid-renovation. Older Nigerian homes being renovated sometimes reveal hidden issues (corroded pipework, damaged substrate) once surface finishes are removed — build a contingency allowance into the budget for this possibility.

Structural vs Cosmetic Renovation: Why the Distinction Matters for Budgeting

Renovation cost estimates built purely from surface finishes — new tiling, paint, cabinets — can be badly wrong if a project turns out to need structural work as well, and distinguishing between the two categories early in the planning process is one of the most important steps in building a realistic budget. Cosmetic renovation covers surface-level changes that do not touch the building's structural elements: repainting, retiling, replacing fixtures, updating cabinetry. Structural renovation involves changes to load-bearing elements — removing or relocating a wall, altering the roof structure, extending the building's footprint — and carries fundamentally different cost, risk and professional-input requirements.

A common and costly planning mistake is budgeting a renovation as if it were purely cosmetic when the actual scope, once properly assessed, includes structural changes — knocking down a wall to create an open-plan living space, for instance, looks simple conceptually but needs a structural engineer's assessment of whether that wall is load-bearing, and if so, a properly designed and installed beam to transfer the load it was carrying. Skipping this assessment and simply removing a load-bearing wall is a serious structural safety risk, not merely a shortcut that saves a modest professional fee.

Before finalising a renovation budget, walk through the intended scope room by room and flag anything touching a wall, the roof structure, or the building's footprint as a potential structural item needing professional assessment, separate from the purely cosmetic items this guide's room-by-room figures assume.

Frequently Asked Questions

Which room is the most expensive to renovate?

Kitchens and bathrooms are consistently the most expensive per square metre in Nigerian renovation projects, due to the concentration of plumbing, electrical and fitted-furniture costs in a relatively small area.

Should I renovate the whole house at once or room by room?

This depends on budget and urgency — a phased, room-by-room approach prioritising the most functionally important or worst-condition spaces first is a common and sensible strategy where budget is constrained, though it can mean living with an unrenovated part of the house for longer.

Does renovation cost typically include professional design fees?

Not usually within the room-by-room figures in this guide, which focus on construction and material cost — an interior designer or architect's fee for a significant renovation is a separate professional cost, worth budgeting explicitly for a project involving meaningful layout changes or a cohesive design vision across multiple rooms.

How does renovation cost compare to the cost of building the equivalent space new?

Renovation is often, though not always, cheaper than an equivalent new build, since much of the structure and shell already exists — the comparison shifts if a renovation reveals extensive structural problems, in which case the cost gap between renovating and rebuilding can narrow considerably, sometimes making a full rebuild the more sensible option once true renovation cost becomes clear.

Does the calculator distinguish between renovating an owner-occupied home and a rental property?

The underlying room-by-room cost logic is the same, though a rental property owner may reasonably choose a lower finish tier than an owner-occupier would for their own home, since tenant durability and turnover considerations often matter more than the aesthetic preferences that drive finish choices in an owner-occupied property.

Is it worth renovating a property before selling it?

This depends on the local market and the specific property's condition — a modest, well-targeted renovation of the most visible and functionally important areas (kitchen, bathrooms, fresh paint) can improve marketability and achievable sale price, but an extensive renovation purely for resale should be weighed carefully against whether the expected sale price increase actually exceeds the renovation cost.

How much contingency should I add to a renovation budget?

A contingency allowance of 10–15% above the calculated renovation cost is a reasonable planning margin, particularly for an older property where hidden issues are more likely to be uncovered once work begins.

Does renovation cost differ significantly between an older and a newer property?

Generally yes — older properties are more likely to reveal hidden issues once surfaces are opened up (outdated wiring, corroded pipework, damp damage), pushing actual cost above initial estimates more often than a newer, well-maintained property where such surprises are less likely, which is part of why a larger contingency allowance is recommended for older buildings.

Can I live in the house while it is being renovated?

This depends heavily on the scope — a phased, room-by-room renovation is often compatible with continued occupancy, while a full-house renovation involving multiple simultaneous trades and significant dust and disruption is harder to live through comfortably, leading many households to relocate temporarily during the most disruptive phases.