Compare and decide

Set two to four houses side by side at Nairobi rates, say what matters to you, and see which fits and how you could build it with the money you have. How this works

County

Budget (KES)

Cash in hand now (KES)

Can add each month (KES)

Bedrooms

Storeys

Your plot (m²)

Coverage allowed (%)

From your county planning office.

Contingency (%)

Your allowance for surprises.

Cost to own

Over

Discount rate (%)

0 adds costs up in today's prices.

Power and water (KES/month)

What matters most to you?

Lowest cost

Lowest cost to own

Most space

Best value per m²

Quickest to build

Fewest unknowns

Start again from my brief

The ranking

Best fit for what you said

1. Contemporary flat-roof 3-bedroom

KES 5,439,157

3 bed · 1 storey · 120.4 m² · score 100/100

To own over 30 years: KES 6,124,598

KES 685,441 in repaints and replacements, 3 parts with no figure yet. Year by year

Plans, 3D and bill · Remove

Try a variant

Side by side

	1. Contemporary flat-roof 3-bedroom
House	KES 4,096,689
Plot works (walls, gate, driveway, septic)	KES 1,342,468
Total	KES 5,439,157
With 10% contingency	KES 5,983,073
Repaints and replacements over 30 years	KES 685,441
Cost to own over 30 years	KES 6,124,598
Per m² of floor (house)	KES 34,026
Floor area	120.4 m²
Roofed footprint	138.8 m²
Bedrooms · storeys	3 · 1
Build programme	21 weeks
Not priced yet	nothing

Building in stages

Enter the cash you have now and what you can add each month, above, to see when each stage can start and when the house is finished.

1. Contemporary flat-roof 3-bedroom — KES 5,983,073

Stage	Cost	Weeks	Starts
Approvals, permits and setting up	KES 284,706	1	not paid for on these savings
Foundations to floor slab	KES 655,176	4	not paid for on these savings
Walling, frame and upper floors	KES 676,907	4	not paid for on these savings
Roof	KES 1,077,472	3	not paid for on these savings
Doors, windows and services	KES 698,720	2	not paid for on these savings
Finishes and fittings	KES 1,113,376	7	not paid for on these savings
External works	KES 1,476,715	alongside	not paid for on these savings
Total incl. 10% contingency	KES 5,983,073

Each stage starts once it is paid for in full, the way a fundi is paid and materials are ordered. External works is not on the build programme: timed here as running alongside. saving building

Add a house

Finish

Not in these figures. Budget for these separately:

Professional fees: architect, structural engineer and quantity surveyor (get quotes through JengaCost's marketplace).
The land, and its search, survey and transfer costs.
Water and power connection fees.
Furniture, curtains and appliances.

Figures are budget estimates from JengaCost's dated rate library adjusted to Nairobi, not quotations. The ranking is worked out from the priorities you set, not a judgement that one house is better. See questions and answers.