How to Apply for a Building Approval and Occupation Certificate in Nairobi County

Constructing a building in Nairobi County requires navigating a structured approval process governed by the Physical and Land Use Planning Act, the Building Code, county by-laws, and regulations enforced by the National Construction Authority (NCA). Whether you are building a residential home, commercial complex, or industrial facility, obtaining proper building approval before construction and an occupation certificate upon completion are mandatory legal requirements. Operating or occupying a building without these documents exposes you to demolition orders, fines, and legal prosecution.

Legal Framework Governing Building Approvals in Kenya

The Physical and Land Use Planning Act, 2019, provides the overarching framework for development control across all counties. The Building Code of Kenya, adopted from the 1968 Local Government (Adoptive By-Laws) Building Order, sets minimum standards for structural integrity, fire safety, ventilation, drainage, and accessibility. Nairobi City County also enforces zoning regulations and development control by-laws dictating permissible land uses, plot ratios, ground coverage, building heights, and setback requirements. The National Construction Authority Act, 2011, mandates that all construction projects be registered with the NCA before commencement, while NEMA requires Environmental Impact Assessment licences for projects significantly affecting the environment.

Documents Required for Building Plan Approval

Before submitting your application, assemble a comprehensive document set. Architectural drawings must be prepared by a registered architect licensed by the Board of Registration of Architects and Quantity Surveyors (BORAQS). These include site plans showing boundaries, access roads, and proposed building footprint; floor plans for every level; all four elevations; cross-sections; roof plans; and drainage layouts. Structural drawings prepared by a registered engineer must include foundation details, beam and column schedules, slab designs, and load calculations.

Additional required documents include a copy of the title deed or allotment letter, a land rates clearance certificate from Nairobi City County, a survey plan from a licensed surveyor, a NEMA licence for qualifying projects, and a sewer connection approval letter from the Nairobi Water and Sewerage Company where applicable.

Step-by-Step Building Approval Process

The approval process typically takes 30 to 90 days depending on project complexity and application completeness.

Step 1: Engage Registered Professionals

Hire a BORAQS-registered architect and a registered structural engineer. For projects requiring NCA registration, your contractor must hold a valid NCA annual practising licence. The architect acts as your primary agent, submitting documents and responding to queries from the county planning office on your behalf.

Step 2: Submit via the e-Construction Permit System

Nairobi City County operates the eDevelopment Permit System, an online portal for electronic submission. Your architect uploads all drawings in PDF format, attaches supporting documents, and submits the application. The county receives approximately 200 construction permit applications per month, of which about 150 are approved. You can track application status online, and the system sends SMS or email notifications at key milestones.

Step 3: Technical Committee Review

A technical committee comprising representatives from planning, public health, fire department, structural engineering, and environment departments reviews your drawings for compliance with the Building Code, zoning regulations, plot ratio limits, and setback distances. The committee may request amendments, which your architect must address through the portal.

Step 4: Site Inspection and Permit Issuance

A county inspector visits the site to verify conditions match submitted plans, checking boundary lines, access roads, existing structures, and drainage patterns. Once approved, you receive a payment notification. Building approval fees are calculated based on estimated construction cost and total floor area. After payment, a construction permit is issued, typically valid for 12 to 24 months.

NCA Project Registration

Before breaking ground, register the project with the NCA. Submit county-approved drawings, a completed project registration form, and proof of your contractor's valid NCA licence. The NCA charges a levy of 0.5 percent of total project cost. Processing takes about one week, followed by a site inspection. Upon satisfactory review, a provisional certificate of compliance valid for 90 days is issued.

Construction Phase Inspections

During construction, the county and NCA conduct inspections at critical stages: foundation level before pouring concrete, ground floor slab, structural frame at each floor level for multi-storey buildings, roofing stage, and a final pre-occupation inspection. Your contractor and supervising professionals must be present. Non-compliance must be rectified before proceeding to the next stage, and building beyond approved plans can result in demolition orders.

How to Apply for an Occupation Certificate

The occupation certificate confirms that your building meets all applicable codes and is safe for habitation or use. You cannot legally occupy, rent out, or sell units without it. Banks and insurance companies also require it for mortgage and property insurance applications.

Application Requirements

Submit the following to the county planning department: copies of approved architectural and structural plans, a completed application form signed by the developer, a statistical form signed by developer and contractor, a completion certificate from your architect, an architect's letter certifying project supervision, a structural engineer's practising certificate and supervision letter, a plumber's certificate for plumbing works, photographs of the completed project, and completed Kenya Bureau of Standards (KEBS) forms certifying materials compliance.

Inspection and Issuance

A multi-departmental team inspects the completed building to verify it matches approved drawings, structural elements are sound, fire safety measures are in place, water and sewerage systems are functional, electrical installations meet standards, and accessibility requirements are met. If deficiencies are found, you must correct them before re-inspection. Once satisfied, the certificate is issued within two to eight weeks of a complete application.

Fees and Costs Involved

County building plan approval fees range from KES 10,000 to KES 500,000 or more for large commercial developments. The NCA levy is 0.5 percent of estimated construction cost. NEMA fees for EIA range from KES 10,000 to KES 50,000. Professional fees for architects run between 6 and 10 percent of construction cost, while structural engineers charge 2 to 4 percent. Additional costs include survey fees of KES 15,000 to KES 50,000, land rates clearance, and water and sewer connection charges.

Common Reasons for Rejection

Frequent rejection reasons include exceeding permitted plot ratio or ground coverage, inadequate setback distances, non-compliance with parking requirements (typically one space per 50 square metres of commercial space), insufficient natural lighting and ventilation, missing fire escape routes in multi-storey buildings, drawings not complying with standard conventions, expired supporting documents, and encroachment on road reserves, power line way-leaves, or riparian land.

Penalties for Non-Compliance

Building without approval or occupying without an occupation certificate carries severe consequences. The county can issue stop-work orders, impose daily fines, order demolition at the owner's expense, and pursue criminal prosecution with fines up to KES 500,000 or imprisonment. Nairobi City County has intensified enforcement in recent years, demolishing hundreds of structures built without approvals or on public land and riparian zones.

Tips for a Smooth Approval Process

Engage qualified professionals registered with relevant regulatory bodies from the outset. Verify your title deed is genuine through a search at the Ministry of Lands. Clear all outstanding land rates before submission. Have your architect review plans against your plot's specific zoning requirements. Submit complete documentation in correct format through the e-permit system, respond promptly to committee queries, and maintain regular communication with your architect throughout the process.