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Go Green


Africa generates over 70 million tonnes of municipal solid waste annually; approximately 20% of this is plastic. According to the World Bank, this is set to double by the year 2025 owing to rapid urbanization and industrialization. Here in Kenya, according to recent statistics by the Ministry of Environment and Forestry, we generate an estimated 22,000 tonnes of waste per day calculated by assuming an average of per capita waste generation of 0.5 kilograms. Past inventories indicate a national average estimate of 20% waste being plastic.


Congratulations for investing with Optiven Limited. Together we would like to develop green communities. This is in line with our policy on environmental protection. As such, we advocate that as we plant trees along the main road in our projects, customers will also take the initiative to plant trees in their plots.

Expression of interest

Once the clients are ready to plant trees in their plot, they will be required to:

Standard Terms and Conditions

  1. Greening commencement: It starts upon water connection and meter installation on the owner’s plot.
  2. Recommended Trees: We shall offer free advisory on the best trees and greenery to plant.
  3. Water connection fee: The amount payable is Kshs.12,000 which is non-refundable.
  4. Greening set up: Upon request we shall Plant and tend the trees up to 2 months at a standard cost of Kshs. 13,000 (Applicable if Optiven is planting tree for you)
  5. Drip irrigation Set up: We shall advice on the setup cost after the two months of tendering.
  6. Destruction Penalty: The trees planted along the internal roads should be taken care of by each resident. Any tree destroyed shall be surcharged at a fee of Kshs 4,000 per tree.

Cost Analysis

  • Water Connection = Ksh 12,000
  • Seedlings = Ksh 500
  • Labour (planting) 1 day @ Ksh 500 per day = Ksh 500
  • Labour (Tending & watering) 3 times per week for 8 weeks @ Ksh 500 per day = Ksh 12,000
  • Total = Ksh 25,000

Breakdown Greening set up

  1. Fill the project environmental form - Download Form
  2. Fill the water connection form - Download Form


Optiven Mangement in liaison with the Property Owners Association will implement and monitor the compliance of the procedure. We shall work together to raise the standards of the entire neighborhood.

Let us Go Green, Let us Maintain the Green


Optiven Group is a great promoter of environmental protection. Nature is what feeds us and is also our gift to the generations to come. As such, each one of us has a responsibility to protect and nurture it in the most practical and the best way possible. In the same line, we strongly advocate on the use of a bio-digester in individual homes for cleaner environment and efficient water usage.

Why use a Bio-digester

  1. Eco-Friendly: It disposes waste with significant reduction of pollution in the environment.
  2. Better space utilization: This unit comparatively uses a smaller space.
  3. Pocket Friendly: Minimal excavation and set-up cost.
  4. No bad smell: it is hygienically recommended because it doesn’t smell and never gets filled up, so there is no need for exhauster services.
  5. Environmental sustainability: This is assured through improved sanitation, production of renewable energy fertilization of the soil and reduction of free methane emissions.

Standard Terms and conditions to all residents

  1. All residents in our projects are highly encouraged to comply with regulations concerning environmental protection health, safety and waste handling.
  2. You are required to Sign the Optiven Environmental Protection Charter with the Optiven Group. No charges apply. 
  3. All construction approvals must have a bio-digester.
  4. You have an individual responsibility to ensure that you produce, store, transport and dispose off waste without harming the environment.


Optiven Management in liaison with the Property Owners Association will monitor the compliance of the bio-digestor setup for all constructions. We shall work together to maintain the set standards in our projects.  We as OPTIVEN, the NUMBER ONE ENVIRONMENTAL ADVOCATES, urge you to consider using this drainage system in your development in order to join the movement in environmental conservation. Kindly contact our office for more information on technicalities and potential suppliers.

Potential Suppliers

Wonder Biodigester
0725 63249 | 0722 427737
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1 - 10 persons {Ksh 85, 000}

Dunglossy Horizons
0702 96115 | 0703213622
1 - 10 persons {Ksh 120,000}

Riflo industries
0711 834871 | 0733 670010
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1 - 10 persons {Ksh150,000}

NB: This is an advisory note; the owner maintains the final decision.


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