If a relative is supervising your building project in Tanzania while you live abroad, protect your money and your relationship with twelve simple controls: a priced Bill of Quantities before you start, a separate project bank account, payments to suppliers and contractors directly rather than through the relative, money released in stages only against verified work, receipts for every payment, weekly photos and videos taken from the same spots, a written agreement on the relative's role and pay, a registered contractor or qualified engineer for structural work, independent inspections at key stages, a simple monthly spreadsheet, a fixed process for changes, and regular visits or a trusted second pair of eyes. These controls are not about distrust. They make it easy for an honest relative to show where every shilling went.
We get calls every year from people abroad who have sent money home for years and have a half-built house to show for it. In most cases, nobody stole a great deal. The money leaked away in small amounts with no plan, no prices and no records. Here is how to stop that.
Why do diaspora projects go wrong?
- No fixed price or plan. "Send money for cement" every week, with no total in sight.
- Cash and mobile money with no receipts.
- One person doing everything: buying, hiring, paying and reporting.
- Unskilled builders doing structural work without an engineer.
- Changes decided on the phone with no idea of the cost.
- Pressure and guilt: family emergencies paid from building money.
None of these needs a criminal. They just need a system that is missing.
The 12 controls
1. Get a priced Bill of Quantities first
Before any money moves, have drawings prepared and priced in a Bill of Quantities. You then know the total, the cost of each stage, and how much cement, steel and blocks each stage should use. When a request comes for 200 bags of cement, you can check it against the BOQ.
2. Open a separate project account
Use a bank account just for the build, ideally one you control from abroad with online access. Many banks offer diaspora accounts. See financing property from abroad. Never mix building money with family spending.
3. Pay suppliers and contractors directly
Pay hardware stores, block makers and the contractor straight from your account to theirs, using invoices sent to you. The relative orders and checks deliveries; you pay. This one rule closes most leaks.
4. Release money in stages against verified work
Agree stages: foundation, ground slab, walls to ring beam, roof, plaster, finishes. Pay for each stage only when it is done and checked. Our guide on monitoring construction progress explains milestones.
| Stage | Typical share of building cost |
|---|---|
| Foundations to ground slab | 15 to 20 percent |
| Walls, columns and ring beam | 20 to 25 percent |
| Roof structure and covering | 15 to 20 percent |
| Plaster, electrical and plumbing first fix | 15 to 20 percent |
| Finishes, fittings, painting | 20 to 25 percent |
These are rough shares for a typical house. Your BOQ gives the real split.
5. Demand receipts for everything
Every payment, every delivery. Photos of EFD receipts on WhatsApp are fine, as long as they come every week and match the bank statement.
6. Weekly photos and videos from fixed spots
Ask for the same four or five photos every week from the same corners of the plot, plus a short walk-round video. Side by side, they show real progress better than any message. Ask for close-ups of reinforcement before concrete pours.
7. Put the relative's role in writing
Agree what they will do (visit site, check deliveries, report weekly), what they will not do (handle large sums, change the design), and what you will pay them for their time. An unpaid helper with a full-time job will cut corners. A fairly paid one has a reason to do it well.
8. Use qualified people for structural work
Foundations, columns, beams and slabs need an engineer's design and inspection. A relative cannot check reinforcement. See fundi or registered contractor and types of foundations.
9. Pay for independent inspections
An engineer or quantity surveyor visiting at key stages, such as before each concrete pour and at each payment stage, costs little compared with the building. They report to you, not to the relative or the builder.
10. Keep a simple monthly spreadsheet
Columns: date, item, supplier, amount, BOQ line, stage. Compare it with the BOQ every month. If cement used is far above the BOQ quantity for the work done, ask why.
11. Handle changes properly
Any change, such as an extra room or a different roof, gets priced in writing before it is approved. Changes on the phone are where budgets break. See avoiding cost overruns.
12. Visit, or send a second pair of eyes
Plan a visit at a key stage if you can. If not, ask a trusted friend or a professional to visit unannounced once or twice.
Should a relative supervise at all?
A relative can be a big help: they know the area, can visit often and care about the outcome. They work best as your eyes and coordinator, not as the builder, buyer, payer and inspector at once. Compare the options:
| Approach | Cost | Control | Best for |
|---|---|---|---|
| Relative handles everything | Lowest upfront | Weakest | Small, simple jobs only |
| Relative coordinates, you pay suppliers directly | Low | Good | Most family houses |
| Registered contractor on a fixed price, relative monitors | Medium | Strong | Houses and rental blocks |
| Contractor plus independent engineer or project manager | Higher | Strongest | Larger investments, apartments, halls |
Read our full guide on building a house in Tanzania while living abroad.
How to raise this with your family
Many people avoid these controls because they fear insulting a parent or sibling. Frame them as protection for everyone: "If something goes wrong, the records show you did everything right." Agree the system before the first payment, not after a problem.
Red flags
- Repeated urgent requests for cash with no receipts.
- Photos that never show the whole building.
- Progress that stops whenever money is late, then restarts with new "price increases".
- Resistance to an engineer visiting.
- Materials bought far beyond the BOQ for the stage.
See also 10 warning signs of construction scams.
A simple weekly report template
Agree a short weekly report that your relative, contractor or supervisor sends every Friday. It can be a WhatsApp message, as long as it follows the same format each time:
- Work done this week, in one or two lines.
- Workers on site, number per day.
- Materials delivered, with receipts attached.
- Payments made, matching your bank statement.
- Problems or delays.
- Plan for next week and money needed, linked to the BOQ stage.
- Photos and a short video from the fixed spots.
Keep all reports in one folder. After a few months, you will have a full history of the project that protects everyone.
Use simple technology
- Shared cloud folder for drawings, BOQ, receipts and photos.
- Photos with date and location turned on, so they show where and when they were taken.
- Short video calls on site at key stages, with the camera pointed at the work, not the person.
- Bank and mobile money statements downloaded monthly and checked against the spreadsheet.
- A group chat with you, the relative, the contractor and the engineer, so everyone sees the same messages.
Frequently asked questions
How do I build a house in Tanzania while living abroad?
Secure the land, get drawings and a permit, get a priced BOQ, hire a registered contractor or engineer, and pay in stages against verified work, with weekly photos and independent inspections.
Should I send money to a relative to build my house?
It is safer to pay suppliers and contractors directly and let the relative coordinate and report. Sending lump sums with no plan is the most common cause of losses.
How much should I pay a relative to supervise?
Agree a fair monthly fee or a small percentage of the project, in writing, with clear duties.
How can I check progress from abroad?
Weekly fixed-point photos and videos, receipts matched to your bank statement, and independent inspections at key stages.
What if the relative refuses these controls?
Explain that they protect the relative as much as you. If they still refuse, consider a contractor on a fixed price with independent supervision, and keep the relative in a support role.
Can a contractor send reports directly to me?
Yes, and a good one will. Ask for weekly reports, photos and invoices sent to you and copied to your relative, so everyone sees the same information.
What should I do if money has already been lost?
Stop sending money, get an independent engineer or quantity surveyor to measure what has been built and value it, and restart with a BOQ and the controls above. Recovering lost money through family or courts is slow and painful, so focus on protecting what is left.
Want a builder who reports to you directly?
Vika Construction works with clients abroad, with priced BOQs, staged payments and regular photo reports. See our project management services or contact us.
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