A little clarity goes a long way
What would help you move forward?
A quote to question, a project to plan, or several jobs to price. Start with the help that fits your next decision.
Get a second opinion
Bring the questions. Talk them through with Miano.
Discuss your drawings, supplier quotes, budget, or next site decision before you commit.
From KES 1,50030-minute consultation
Choose a consultation →Keep the estimates moving
Several jobs? Make room for the what-ifs.
Revisit quantities and compare rates across every premium calculator, plus the Architectural Brief.
KES 1,000monthly · all tools
Explore the subscription →Start with a clear brief
Give your architect more than a wish list.
Put your rooms, lifestyle, priorities, and budget into a structured brief before design begins.
KES 500lifetime access
Prepare your brief →Calculator library
What are you building next?
Start with your measurements. Each tool lists its price and access period; unlock the complete result when you need it.
No matches for these filters
Try another material or work stage.
Structure & Build
Foundation to roof — the bones of the building
KES 500 once
Foundation & Excavation
Excavation, footing concrete, foundation masonry, reinforcement, backfill, and a costed material list (BOQ) from your drawings.
Open Calculator
KES 500 once
Walling Calculator
Blocks, bricks or stone, openings, mortar, ring beam, DPC, ties, labour, and a complete costed BOQ.
Open Calculator
Free
Concrete Calculator Lite
Quick slab and footing volume in m³ before ordering materials.
Open Calculator
KES 500 once
Concrete Calculator Pro
Slabs, walls & stairs with materials, mix ratios, trucks/bags, floor steel, and a costed material list (BOQ).
Open Calculator
Free
Ndarugo & Brick Calculator
Estimate block or brick quantities from wall area faster.
Open Calculator
KES 500 once
Kenya Roofing Calculator
Six roof types with live blueprints — mabati, timber trusses, labour, and a full BQ.
Open Calculator
KES 500 once
Structure (columns and beams)
Concrete, steel, labour, and transport cost for a reinforced frame — columns and beams together.
Open CalculatorFinishes
Plaster, paint, and tiling once the walls are up
KES 500 once
Plastering Calculator
Plaster area, materials, and paid exports for cleaner quotes.
Open Calculator
KES 500 once
Paint Calculator
Room-by-room paint planning with containers, surfaces, and practical output.
Open Calculator
KES 500 once
Tile & Grout Calculator
Multi-room tile planning with layout previews, boxes, grout, and adhesive costs.
Open CalculatorFencing & Boundary
Four fence types — pick how you're enclosing the plot
KES 500 once
Stone Perimeter Wall
Planning quantities and quote direction for masonry perimeter walls.
Open Calculator
KES 500 once
Mabati Fence Calculator
Estimate mabati fencing materials before procurement and site buying.
Open Calculator
KES 500 once
Precast Fence Calculator
Panels, columns, steel, and labor for a precast fence quote.
Open Calculator
KES 500 once
Post Fence Calculator
Chain link and barbed wire estimates with post options from one tool.
Open CalculatorProperty Investment
Test the purchase price, rent, occupancy, costs, and return before buying
KES 500 once
Buy, Build or Invest Calculator
Compare buying an apartment, building a home, investing, building rentals, or combining a home with rentals. Include loans, commuting and changing property values.
Compare My Options
KES 500 once
Real Estate Investment Calculator
Compare buying, renting, or building for monthly rent or Airbnb, including furnishing, occupancy, operating costs, financing, and ROI.
Test an InvestmentSee a sample foundation estimate
Sample quantities · not a project quote
A 12 m × 9 m bungalow with internal foundation lines
- Foundation length
- 54 m
- Excavation
- 48.6 m³
- Footing concrete
- 6.48 m³
These quantities come from one sample project's dimensions and assumptions. Your foundation layout, trench sizes, ground conditions, and local rates change the result. Full costs, steel procurement, and the complete BOQ require an unlock.
Estimate your foundation →Fencing Kenya Suite
Compare four fence systems.
Stone wall, mabati, precast, and post fence tools in one gateway.
KES 500all 4 · lifetime
Compare FencesMjengo School subscription
Use every premium tool.
Every premium calculator plus the Architectural Brief, with unlimited runs.
KES 1,000monthly access
See the PassHow it works
Calculate freely. Pay only to unlock the complete breakdown.
No account or payment is needed to start entering your project details.
Choose your stage
Foundation, structure, finishes, roofing, or fencing.
Enter and review
Add measurements, use local rates, and check the assumptions.
Unlock what matters
Pay only when you need the full breakdown, access period, or PDF.
Before you estimate
A few useful answers.
What can I do before paying?
You can enter your project details before paying. Free tools provide their results without an unlock; premium tools require payment for the complete breakdown. Each tool shows its price and access period. Use the library's free-results filter to find tools with fully free results.
Can I use prices from my local supplier?
Yes, where a calculator includes rate fields, you can enter your supplier's prices. Check units and confirm transport, labour, and other inclusions against your quotations before using the total to plan a purchase.
Is an estimate a final construction quote?
No. Results are planning guides based on your inputs and the calculator's assumptions. Confirm drawings, site conditions, specifications, quantities, and current prices with the relevant professionals and suppliers before committing to work.
Book a project consultation →Briefs
Start with the right question first.
A good brief saves you from paying professionals to guess. Frame the project properly before design work begins.
Architectural Brief
Walk into your architect's office with answers.
- Rooms, lifestyle, and real priorities
- Site and boundary realities
- Budget logic — savings, loans, SACCO, phased builds
- Needs vs wants, separated honestly
More briefs are on the way: Buy or Build · Apartment Investment · Airbnb / Short Stay · Custom Project
Join the newsletter to hear first →
Consultations & Site Visits
Got a quote, a drawing, or a big decision? Let's talk.
Talk through the choices behind the numbers with Miano. Get a second opinion on your quote, review your budget and scope, or discuss the next step on site.
- 30 minute sessionA second opinion or next-step directionKES 1,500
- 1 hour sessionBudgeting, scope, and practical planningKES 2,500
- 2 hour sessionDeeper project guidance and site strategyKES 3,500
- Site visits & speakingQuoted per project
Bring the details. Get more from the conversation.
Have your relevant drawings, quote, site photos, budget, and key questions ready. You don't need every answer before booking; bring the decision you want to work through.
See meeting formats and booking options →
Learning
Courses & Resources
Videos, PDFs, and practical guides that support your construction journey.
Open Resources
Updates
Newsletter
Miano's practical updates and construction lessons straight to your inbox.
Join the NewsletterWatch Miano Muthii
Free lessons on what building really costs.
The fast-learning corner of Mjengo School — real Kenyan builds, broken down shilling by shilling.
Start free
Your next build decision shouldn't be a guess.
Enter your project details free. Premium tools require payment for the complete breakdown, or use the subscription for access to every premium tool.
Client feedback
How was your Mjengo School experience?
Used a calculator, booked a consultation or had a site visit? Share what helped and what could be better.
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