Artemis Atelier Ltd
Artemis Atelier Ltd
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Building frame and blockwork under construction

Our process

How we build: every stage checked before you pay for the next

We build in six stages. At the end of each one the work is inspected against the drawings (by our inspection team, an independent firm from our panel, or your own inspector), you see the evidence, and only then is the next stage payment due. Costs are in an open-book bill of quantities, and you can watch the site on a live camera throughout.

Last verified

The steps, from first call to keys

  1. 1

    Free consultation

    By video call or WhatsApp at a time that suits your time zone: your plot, budget and timeline.

  2. 2

    Site and land assessment

    We check the plot, access and soil, and work with your lawyer on the title. See buying land from abroad.

  3. 3

    Design and approvals

    Architectural and structural drawings, then the building permit application.

  4. 4

    Open-book BOQ and contract

    An itemised bill of quantities, a stage payment schedule and an inspection plan, all in a written contract.

  5. 5

    Build in six inspected stages

    Each stage is inspected and evidenced before the next payment is due (details below).

  6. 6

    Handover and defects period

    Keys, as-built drawings, electrical and plumbing layouts, structural certificates and a 6–12 month defects liability period.

The stage gates

This is what is checked at each gate and what you receive as evidence. The chart shows how a typical build budget splits across the stages (from our 2026 cost guide); your contract sets the actual payment schedule.

Where the money goes

Six stages, six checks, six payments

Each bar is a stage’s typical share of the build budget. At the end of every stage the work is inspected and you see the evidence before the next payment is due.

  1. 1

    Design & site prep5–10%

    Drawings, structural design, soil test, building permit, clearing and setting out.

    Inspected, then paid

  2. 2

    Foundation10–15%

    Excavation, blinding, footings or raft, foundation walls, DPC. More on waterlogged or reclaimed land.

    Inspected, then paid

  3. 3

    Frame & blocks20–30%

    Columns, beams, blockwork, lintels; for a duplex also the first-floor slab and stairs.

    Inspected, then paid

  4. 4

    Roof8–12%

    Timber or steel trusses, covering (stone-coated or aluminium), fascia and gutters.

    Inspected, then paid

  5. 5

    Services10–15%

    Electrical wiring and fittings, plumbing, septic or soakaway, water storage.

    Inspected, then paid

  6. 6

    Finishing30–40%

    Plaster, screed, tiles, ceilings, paint, doors, windows, sanitary ware, kitchen.

    Inspected, then paid

Stage built
Inspected
Report & photos to you
You release payment
Typical shares from our 2026 cost model. Your contract sets the actual payment schedule.
Stage gates and what is inspected
StageWhat the inspector checksEvidence you receive
Mobilisation and setting outPlot boundaries, building position and levels match the approved drawings.Setting-out photos, survey beacons, inspector’s sign-off.
FoundationExcavation depth, rebar size and spacing, concrete grade (cube test samples), DPC.Photos before every concrete pour, cube test results.
Frame and blockworkColumn and beam reinforcement, block quality, wall alignment, lintels; for a duplex the first-floor slab.Pre-pour checks, block samples, slab inspection.
RoofTruss sizes and fixings, covering, flashing and gutters; building watertight.Roof inspection report, drone or walk-round video.
ServicesElectrical wiring and earthing, plumbing pressure test, drainage falls, septic/soakaway.Test certificates and photos before walls are closed.
Finishing and handoverPlaster, tiling, ceilings, joinery, fittings, snag list cleared.Snag list, as-built drawings, warranties, keys.

Inspection before every payment

Who checks your build? You choose.

Every stage is inspected before you pay for the next one. Use our team, add an independent firm, bring your own inspector, or combine them.

Option A · Included in every build

Our inspection team

Checks each stage against the drawings and sends you the report before the next payment is due.

  • Engr. J.O. Owolabi · Chief inspector
  • Arch. E.A. Nwabueze · Adjunct inspector
  • Engr. Bello Hasani · Inspector

Option B · Independent of Artemis

An independent firm from our panel

Choose one of three to four outside COREN-registered firms to check the stages you want, for a second opinion that doesn’t work for us.

  • Panel firm · being appointed · Structural and concrete works
  • Panel firm · being appointed · Building services (electrical and plumbing)
  • Panel firm · being appointed · General building and finishes
  • Panel firm · being appointed · Quantity surveying and valuations

Firms are named here as each agreement is signed.

Option C · Your choice

Bring your own inspector

Any qualified engineer or surveyor you choose. We give them site access at each stage gate and share the drawings and bill of quantities; their fee is paid by you.

  • Your engineer, surveyor or architect
  • Site access at every stage gate
  • Drawings and BOQ shared with them

Whoever inspects, the rule is the same: no report, no payment. See the stage gates

Independent and client-appointed inspection fees are agreed separately. Inspection plans are written into your contract.

Proof, not promises

  • Our inspection team: Engr. J.O. Owolabi (chief inspector); Arch. E.A. Nwabueze (adjunct inspector); Engr. Bello Hasani (inspector). You can also appoint an independent inspector of your choice to check any stage before you pay.
  • COREN registration: Engr. Utibe Collins Nneke — R.74112 · check the register

What you see while we build

A live site camera, weekly reports with dated photos, an inspection report at each stage gate, drone or walk-round video at key milestones, and your private client portal with stages, payments, documents and a defect request form.

How often you hear from us

What you see while we build

Not a relative’s phone photos: dated, regular evidence you can check from anywhere.

W1W2W3W4W5W6W7W8W9W10W11W12
Live site cameraAny time, on your phone
Weekly photo reportEvery week
Stage inspection reportAt every stage gate
Drone or walk-round videoAt key milestones
Your client portalStages, payments, documents
Illustration of a typical 12-week stretch of a build. Inspection dates follow the stages in your programme.

How long it takes

Typical timelines
ProjectTypical time from approval to handover
2- or 3-bedroom bungalow6–12 months
4-bedroom bungalow8–12 months
4- or 5-bedroom duplex12–24 months
RenovationWeeks to months, depending on scope
Steady funding of each stage is the biggest factor in keeping to time.

How your money is protected

Five layers between your money and the site

Each layer catches what the one before might miss. Together they mean you never pay for work you haven’t seen.

Your money
  1. Stage payments

    You pay for one stage at a time, never ahead of the work.

  2. Inspection

    Every stage is checked before you pay: by our team, an independent firm, or your own inspector.

  3. Open-book BOQ

    Every bag of cement and tonne of rebar itemised, so you can compare with market prices.

  4. Insurance

    Contractor’s all-risk cover with a NAICOM-licensed insurer you choose, in your name.

  5. Written contract

    Scope, payments, changes and disputes agreed in writing before work starts.

Your site
Insurance cover depends on the policy issued. Your signed contract sets the payment schedule and inspection plan.

Building contract essentials

Every project has a written contract that attaches the drawings and BOQ and sets out: the stage payment schedule, the inspection at each gate, the programme, how changes (variations) are priced and approved, insurance, the defects liability period, and how disputes are resolved.

Questions people ask

What are the steps to building a house in Nigeria?
Verify the land, survey and soil test, design and permit, BOQ and contract, then build in stages (foundation, frame, roof, services, finishing) with an inspection before each payment, and hand over with documents and a defects period.
How long does it take to build a house in Nigeria?
Typically 6–12 months for a bungalow and 12–24 months for a duplex from approval to handover.
Who inspects the work?
You choose. Our inspection team, led by chief inspector Engr. J.O. Owolabi with adjunct inspector Arch. E.A. Nwabueze and inspector Engr. Bello Hasani, checks every stage. You can add an independent firm from our panel, or bring your own engineer or surveyor; we give them site access at each stage gate. Either way you receive the report before the next payment is released.
What should a building contract in Nigeria include?
Scope with drawings and BOQ, stage payment schedule, inspections, programme, variation procedure, insurance, defects liability period and dispute resolution.

Request a sample milestone schedule

See exactly how a project like yours would be staged, inspected and paid.

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