Common Mistakes People Make When planning future extensions
Planning future extensions starts with clear decisions about your property, budget and building work. Before spending money, define what you need, where the work will happen, who will supervise it and how you will check the result.
For property owners in Uganda, site conditions matter. A project in Masaka may have different access, drainage or transport needs from one elsewhere. Use your actual drawings, measurements and professional advice rather than a single national price or construction rule.
Quick planning summary
| Decision | What to establish | Evidence to request |
|---|---|---|
| Project purpose | What the extension needs to achieve for the property | Written brief and relevant drawings |
| Site conditions | Access, drainage, soil, boundaries and neighbouring structures | Site visit and survey information |
| Cost planning | Measured quantities, quality level, transport and contingency | Itemised quotation and assumptions |
| Workmanship | Qualified personnel, inspection points and test requirements | Supervisor details and checklists |
| Handover | Defects, records, maintenance and warranties where offered | Signed inspection and handover notes |
1. Asking for a price before defining the work
A vague brief makes proposals difficult to compare. Record the extension’s purpose, dimensions, finishes, access needs and expected performance before requesting quotations.
Ask each person quoting to explain what is included and excluded. Do not accept a general promise that the work will be “standard”. Request clear material descriptions, workmanship requirements and inspection stages.
2. Assuming the site has no constraints
Inspect the site before settling the scope. Check access, drainage, soil, boundaries and neighbouring buildings. Also consider space for deliveries and material storage.
Confirm these details against the drawings rather than relying on verbal assumptions. Where site conditions differ from the original plan, seek appropriate professional advice before proceeding.
| Check | Practical action | Common oversight |
|---|---|---|
| Site conditions | Confirm site conditions against the project brief | Relying on verbal assumptions |
| Labour availability | Ask how labour availability affects cost and timing | Ignoring site-specific constraints |
| Responsibility | Assign a named person to review the result | No one signs off the work |
| Records | Save dated evidence and receipts | Missing documentation at handover |
3. Leaving drawings and material choices unclear
Use drawings and measurable specifications to explain the work. Identify relevant dimensions, finishes and products, including approved products where required. Keep the latest agreed version available to the site team.
Choose materials with their intended use, weather exposure and future maintenance in mind. Resolve unclear specifications before materials are ordered.
4. Treating an estimate as a complete budget
Compare itemised quotations based on the same scope and quality level. Check measured quantities, transport, labour and any stated assumptions. Include a contingency in the cost plan without treating it as a substitute for clear pricing.
Where an item remains uncertain, show it as a provisional allowance rather than presenting a guess as a fixed price. Ask how that allowance will be confirmed.
5. Leaving supervision and timing undefined
Agree who will supervise the work, inspect each stage and authorise changes. Confirm labour availability and how inspections will fit into the construction schedule.
| Check | Practical action | Common oversight |
|---|---|---|
| Labour availability | Confirm labour availability against the project brief | Relying on verbal assumptions |
| Inspection requirements | Ask how inspection requirements affect cost and timing | Ignoring site-specific constraints |
| Responsibility | Assign a named person to review the result | No one signs off the work |
| Records | Save dated evidence and receipts | Missing documentation at handover |
6. Moving ahead without checking completed work
Agree on a safe construction sequence and inspection points before work begins. Check each completed stage against the drawings and scope before moving to the next activity.
Photograph hidden work before it is covered, retain delivery notes and record defects while they are accessible. For structural safety, electrical installations, sanitation, fire safety or statutory approval, obtain advice from a suitably qualified Ugandan professional.
7. Making changes without written records
When an unexpected condition or requested change arises, record what needs to change and why. Confirm its effect on scope, cost and timing with the person authorised to approve it. Date each decision and update the documents used on site.
| Check | Practical action | Common oversight |
|---|---|---|
| Inspection requirements | Confirm inspection requirements against the project brief | Relying on verbal assumptions |
| Project scope | Ask how project scope affects cost and timing | Ignoring site-specific constraints |
| Responsibility | Assign a named person to review the result | No one signs off the work |
| Records | Save dated evidence and receipts | Missing documentation at handover |
8. Leaving quality checks until handover
Check quality throughout construction, not only at the end. Use the agreed specifications and inspection checklists to review the work and record any defects.
At handover, gather signed inspection notes, relevant records, maintenance information and warranties where offered. Keep these documents with the final drawings so the completed work is clearly recorded.