Common Mistakes People Make When Building Their House
Introduction
Building a house in Kenya is a big milestone, but it can easily turn into a financial nightmare if you’re not careful. Many people, especially first-time homeowners, fall into the same traps. In this blog, we highlight common mistakes people make when building their house—and how you can avoid them.
Whether you’re building from scratch in Kitengela, Ruai, or Ruiru, these insights will save you time, stress, and money.
1. Skipping a Professional House Plan
Many people think a house plan is optional. It’s not.
A detailed architectural plan ensures you stay within budget, follow county regulations, and avoid structural disasters. Don’t rely on “fundi ideas”—hire a certified architect. Platforms like Jenga Nyumba can help connect you to professional service providers.
2. Underestimating the Total Cost
Budgeting only for materials and labor? Big mistake.
You need to include approvals, site clearance, transport, contingency, water, electricity, and security. Always have a buffer of 10–20% for unexpected expenses.
3. Using Unqualified Fundis
Not all fundis are created equal. Many claim to know everything but can’t follow drawings or handle complex tasks. Vet fundis thoroughly and ask for references or site visits to previous projects.
4. Buying Low-Quality Building Materials
Trying to save money by purchasing cheap materials will cost you more in the long run. Low-grade cement, hollow blocks, or fake roofing sheets lead to repairs or full replacements later. Use trusted suppliers like those listed on Jenga Nyumba’s building materials section.
5. Failing to Get Permits
Building without county approval can lead to penalties or demolitions. Always get construction permits and follow legal procedures. It protects your investment. Kenya’s National Construction Authority (NCA) for permits and legal requirements
6. Poor Site Supervision
Even with a good team, construction can go wrong if no one is supervising daily. Consider hiring a project manager or site supervisor, or at the very least, make regular visits.
7. Changing Designs Midway
Frequent changes increase costs, delay the project, and confuse workers. Stick to your plan unless the changes are absolutely necessary—and consult professionals before altering anything.
8. Ignoring Drainage and Water Flow
One of the most overlooked mistakes is poor drainage planning. Always consider rainwater direction, soak pits, and proper slope. Water pooling near your foundation is a recipe for disaster.
9. No Clear Contract with Workers
Never rely on word-of-mouth agreements. Put everything in writing: timelines, payment schedules, penalties, and responsibilities. This protects you and ensures accountability.
10. Not Planning for Future Expansion
Think long-term. If you plan to expand later—add more rooms, a rental unit, or an upstairs floor—ensure the foundation and layout can support it. This will save you thousands later.
Final Thoughts
Building your house is a journey, not a sprint. By avoiding these common mistakes people make when building their house, you’ll build not just a structure—but a secure, lasting home.
At Jenga Nyumba, we help connect you with trusted property listings, professional builders, and high-quality materials across Kenya.
