All applications are done to the National Construction Authority. Nowadays this is done online.
Apply Online

1. To make an application for to be a contractor you need to visit the National Constructions Authority’s Website to make the application.
2. Once you are on the page, now select "Register to Be A Contractor (Local)" option under "Contractors" tab in the menu.
3. This will take you to the next page where you are supposed to click on option “Local Contactor Registration Portal” which is under heading "Quick Links".
4. After clicking the link, this will direct you to the next page where you need to click on “Register” and create an account by filling in the requested information in each field.
5. Log into your account with the National ID/ Passport number and password used during the registration process.
6. Once you have logged in click on the “New Application” tab then click on “New Contractor Registration”
7. Click on the “Application Requirement” to view the needed documentation and information. A list of the the needed Application requirements and documentations can be found at the “Required Section” of this page.
8. Upload and submit the required documents.
9. After submission of the online registration application, an invoice will be sent to your email address used during registration with the amount to be paid and mode of payment. You will receive a text message notifying you of the sent invoice, and this will be sent via the phone number used during registration.
10. In your account, you will be required to key in the Bank Slip, Transaction Number or the M-Pesa Transaction Number after payment.
11. After this processing of your application will begin.

Before you proceed, ensure you have the following:

1. Academic certificates and testimonials for the technically qualified directors
2. CR 12
3. Certified copy of current business license
4. If applying for Electrical Engineering attach a certificate from Energy Regulatory Commission
5. Copy of Company registration certificate — Certificate of Registration/Certificate of Incorporation
6. 3 Years audited accounts and other relevant financial information
7. Certified copies proving ownership of assets
8. KRA Tax compliance certificate
9. Contractors association membership certificate

National Construction Authority - Head Office
Physical address: 9th Floor, KCB Towers, Kenya Road,
Upperhill Area, Nairobi,
Postal address: P.O.Box 21046-00100
Nairobi,
Tel:+254 709 126 102/172/173 Email:info@nca.go.ke , feedback@nca.go.ke
Website:NCA Link

All Individuals or companies interested in Construction Business and other related construction services are eligible registered with the National Construction Authority.

1. Contractors in Building Industry and others stakeholders who are interested in expansion of the construction industry;
2. Any person who possesses technical qualifications and registered by the relevant professional Body and suitable to carry out duties in matters relating to construction industry as envisaged under Section 23 of the construction Act.

• Application fees Ksh. 5000
• Registration fees

1. NCA 1 Ksh.100,000.00
2. NCA 2 Ksh. 75,000.00
3. NCA 3 Ksh. 50,000.00
4. NCA 4 Ksh. 25,000.00
5. NCA 5 Ksh. 20,000.00
6. NCA 6 Ksh. 15,000.00
7. NCA 7 Ksh. 10,000.00
8. NCA 8 Ksh. 5,000.00

• Registration fees are found on page 14 to 15 of this document

• The certificate is valid for a period of one year and should be renewed annually.

Please attach documents that can be used by people. e.g. links

Please attach sample completed documents that would help other people.

• It takes a period of 3 to 5 working days for the registration.

Videos explaining the procedure or to fill the applications. 
Attach videos using the following tag <&video type='website'>video ID|width|height<&/video&> from external websites. 	
Please remove the '&' inside the tags during implementation.
Website = allocine, blip, dailymotion, facebook, gametrailers, googlevideo, html5, metacafe, myspace, revver, 
sevenload, viddler, vimeo, youku, youtube
width = 560, height = 340, Video ID = Can be obtained from the URL of webpage where the video is displayed.
e.g In the following url 'http://www.youtube.com/watch?v=Y0US7oR_t3M' Video ID is 'Y0US7oR_t3M'.

An application for registration shall be in the prescribed form and shall be accompanied by the prescribed fee, and shall demonstrate to the satisfaction of the Board that the person, or, in the case of a firm, at least one director or partner thereof—

• is the holder of the minimum technical qualifications and skills prescribed by the Board for the class of contract works in respect of which registration is sought;
• has the necessary experience prescribed by the Board in works involving construction, erection, installation, alteration or any other activity connected therewith;
• has professional and general conduct which in the opinion of the Board, makes the person suitable to be registered under the National Construction Authority Act; and
• has the necessary plant and equipment for the category of works for which the registration is sought.

1. Full names
2. Physical and postal address
3. ID/Passport number
4. Company name and registration details
5. Academic and professional qualifications
6. Plant equipment
7. Certificate of Incorporation with the Registrar of companies.
8. Certified true copy of memorandum & Articles of Association.
9. Tax details and Clearance Certificate.

• A person shall not carry on the business of a contractor unless the person is registered by the Board under the National Construction Authority Act.

• A person seeking registration under shall, in the case of a firm, be eligible for registration if at least one of the partners or directors of the firm possesses such technical qualifications, skills or experience as the Board may from time to time prescribe.
• Any person who contravenes this commits an offence and shall be liable on conviction to a fine not exceeding one million shillings, or to imprisonment for a term not exceeding three years or to both, and in the case of a continuing offence, to a fine not exceeding one hundred thousand shillings for every day or part thereof during which the offence continues.

Please explain what are other uses of obtaining this document/certificate.
e.g. Birth Certificate can be used as proof of identity.

• NATIONAL CONSTRUCTION AUTHORITY ACT

More information which might help people.