PropTech — Southern & West AfricaData Gap Analysis

Billboard and Outdoor Advertising Sites in Southern Africa: The GHS 1.2 Billion Industry Where Landlords Lease Airspace They Cannot Value

22 May 2026·Updated Jun 2026·9 min read·GuideIntermediate
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In this article
  1. Sixty-Eight Thousand Billboard Sites and the Airspace Lease Market Nobody Benchmarks
  2. Nana Akua Mensah and the Rooftop She Leased for Less Than It Is Worth
  3. Traffic Count Data and the Valuation Input That Property Owners Cannot Access
  4. Digital Billboards and the Revenue Revolution That Changes the Landlord Equation
  5. Billboard Site Portfolio Management and How AskBiz Creates Landlord Intelligence
  6. Airspace as Asset Class and the Market Data That Would Unlock Institutional Interest
Key Takeaways

The outdoor advertising industry across Southern and West Africa generates an estimated GHS 1.2 billion in annual revenue from approximately 68,000 billboard, street pole, wall mural, and digital screen sites positioned along highways, urban arterials, and commercial precincts in South Africa, Nigeria, Ghana, and Kenya, yet the property owners who lease rooftops, wall faces, and land parcels to media companies for billboard installation operate without the traffic count data, rental comparables, lease benchmarking, or yield calculations that would allow them to negotiate site leases from a position of informed market knowledge rather than accepting whatever rental the media company proposes. Nana Akua Mensah, who owns a three-storey commercial building on the Accra-Tema Motorway with a rooftop billboard site leased to an outdoor media company at GHS 4,200 monthly for a 48-sheet billboard visible to an estimated 85,000 vehicles daily, suspects she is being significantly underpaid relative to the advertising revenue her site generates because the media company sells advertising space on her rooftop structure at GHS 18,000 to GHS 32,000 per month to brand advertisers but pays her a fixed rental that has not been renegotiated since the original lease was signed in 2019, yet she cannot substantiate her position in lease renewal negotiations because no published database of billboard site rentals, traffic-adjusted yield comparables, or media company revenue sharing benchmarks exists for the Ghanaian outdoor advertising market. AskBiz gives property owners with billboard and outdoor advertising site assets the lease management, revenue benchmarking, and tenant relationship tools that transform a passive airspace lease into an actively managed property income stream.

  • Sixty-Eight Thousand Billboard Sites and the Airspace Lease Market Nobody Benchmarks
  • Nana Akua Mensah and the Rooftop She Leased for Less Than It Is Worth
  • Traffic Count Data and the Valuation Input That Property Owners Cannot Access
  • Digital Billboards and the Revenue Revolution That Changes the Landlord Equation
  • Billboard Site Portfolio Management and How AskBiz Creates Landlord Intelligence

Sixty-Eight Thousand Billboard Sites and the Airspace Lease Market Nobody Benchmarks#

The outdoor advertising industry in Southern and West Africa operates through a three-party structure involving property owners who control the physical locations where advertising structures are installed, media companies who build and maintain the structures and sell advertising space to brand clients, and advertisers who pay monthly or campaign-based fees for the right to display their messages to the vehicular and pedestrian traffic passing each site. The property owner contribution to this value chain is the location itself, the rooftop, wall face, road frontage, or land parcel that provides the physical platform and the visual exposure that gives the advertising its commercial value. South Africa outdoor advertising sector is the most developed on the continent with approximately 28,000 sites generating annual industry revenue estimated at ZAR 8.2 billion, dominated by major media owners including Primedia Outdoor, JCDecaux, Provantage, and Clear Channel who hold portfolios of several hundred to several thousand sites each under long-term lease agreements with property owners. Nigeria outdoor advertising market encompasses approximately 22,000 sites concentrated in Lagos, Abuja, and Port Harcourt with annual revenue estimated at NGN 95 billion, with the Advertising Regulatory Council of Nigeria and the Lagos State Signage and Advertisement Agency providing regulatory oversight that varies in effectiveness by jurisdiction. Ghana outdoor advertising market contains approximately 8,500 sites generating annual revenue estimated at GHS 1.2 billion, regulated by the Accra Metropolitan Assembly in Greater Accra and district assemblies elsewhere. Kenya contains approximately 9,500 sites generating annual revenue estimated at KES 18 billion. Across all four markets, the property owner receives a fixed monthly rental for the site lease that typically ranges from 8 to 22 percent of the advertising revenue the media company generates from the site, a ratio that property owners rarely know because the media company advertising rate card and occupancy data are not shared with the landlord. The lease structure overwhelmingly favours the media company because the property owner has no visibility into the revenue their site generates and therefore no basis for negotiating a rental that reflects the site true commercial value. A billboard site on a highway carrying 120,000 vehicles daily might generate advertising revenue of ZAR 85,000 monthly while the property owner receives ZAR 8,500 in rent, a 10 percent revenue share that the property owner accepted because they had no market data suggesting they should demand more. The same property owner might lease a different site with 15,000 daily vehicles at ZAR 6,000 monthly to a different media company that sells advertising at ZAR 22,000, producing a 27 percent revenue share, demonstrating the inconsistency that results from lease negotiations conducted without market benchmarks.

Nana Akua Mensah and the Rooftop She Leased for Less Than It Is Worth#

Nana Akua commercial building on the Accra-Tema Motorway was constructed in 2016 as a three-storey retail and office building whose primary revenue comes from ground-floor retail tenants paying GHS 3,800 to GHS 5,200 monthly per unit and upper-floor office tenants paying GHS 2,400 to GHS 3,600 monthly per unit. The building rooftop was an afterthought in the original development, a flat concrete surface with no planned use beyond housing the water tanks and satellite dishes that serve the building occupants. In 2019, an outdoor media company approached Nana Akua with a proposal to install a 48-sheet billboard on her rooftop, offering GHS 3,600 monthly in rent plus the cost of structural reinforcement to support the billboard frame. Nana Akua negotiated the rental up to GHS 4,200 monthly and signed a five-year lease with a renewal option at the same terms. The media company installed a steel billboard frame at a cost of approximately GHS 42,000, connected lighting powered by the building electrical supply with a separate meter, and began selling advertising space to brand clients within two weeks of installation. Nana Akua receives GHS 4,200 monthly from the billboard lease, representing approximately 12 percent of her building total rental income and generating a yield of infinity on a rooftop asset that previously produced zero income and required no additional investment from her beyond allowing the installation. From a pure landlord perspective, the billboard lease is pure incremental income. However, Nana Akua suspects she is significantly underpaid because she has observed that the billboard displays campaigns for major brands including telecommunications companies, beverage manufacturers, and financial services firms whose advertising budgets suggest they are paying substantially more than GHS 4,200 monthly for the exposure her site provides. Her suspicion was reinforced when a representative of a competing media company informally mentioned that prime motorway billboard sites in the Tema corridor generate advertising revenue of GHS 18,000 to GHS 32,000 monthly depending on traffic volume, advertiser demand, and whether the site is illuminated for nighttime visibility. If the advertising revenue from her site averages GHS 25,000 monthly, her GHS 4,200 rental represents a 16.8 percent revenue share, leaving the media company with 83.2 percent of site revenue against relatively modest operating costs including electricity for illumination, periodic structural maintenance, and the sales and administrative overhead allocated to managing the site within a portfolio of several hundred billboard locations. Nana Akua lease renewal is approaching in 2024 and she wants to renegotiate from a position of market knowledge, but the data she needs, comparable billboard site rentals on the Accra-Tema corridor, traffic count data for her specific location, advertising rate card benchmarks for 48-sheet motorway billboards, and revenue sharing norms in the Ghanaian outdoor media market, does not exist in any published or accessible format.

Traffic Count Data and the Valuation Input That Property Owners Cannot Access#

The commercial value of a billboard site is determined primarily by the volume and demographic profile of the traffic that passes it, making traffic count data the most important valuation input for outdoor advertising sites, yet property owners almost never have access to traffic data for their specific locations because the data is collected and held by government road authorities who do not publish it in formats accessible to individual property owners and by media companies who commission proprietary traffic studies that they use internally for advertising pricing but do not share with the landlords whose site value the data quantifies. In South Africa, the South African National Roads Agency SOC Limited conducts traffic counts on national roads and publishes annual traffic flow reports, but the data is aggregated by road segment rather than by specific location, meaning a property owner on the N1 between Johannesburg and Pretoria can determine that the road segment carries approximately 180,000 vehicles daily but cannot determine whether the traffic past their specific site is 180,000 or whether their building is on a section where an offramp reduces through-traffic to 120,000. In Ghana, the Department of Urban Roads and Ghana Highway Authority conduct traffic counts for road planning purposes, but the data is not published in a format that property owners can access, and counts are performed at selected stations that may or may not correspond to billboard site locations. In Nigeria, traffic count data for Lagos roads is collected by the Lagos Metropolitan Area Transport Authority and by LASTMA for traffic management purposes, but the data is internal to these agencies and not available to property owners or media companies seeking to validate site exposure claims. In Kenya, the Kenya National Highways Authority and Kenya Urban Roads Authority collect traffic data that is similarly restricted in accessibility. The consequence is that billboard site lease negotiations occur in a traffic data vacuum where the media company may have proprietary traffic estimates for the site but the property owner does not, creating a fundamental information asymmetry that the media company can exploit in rental negotiations. A media company that knows a site receives 120,000 vehicle impressions daily can calculate the advertising value at current rates per thousand impressions and offer the property owner a rental well below the level that the site commercial value would justify, confident that the property owner cannot challenge the offer with competing data. Some property owners attempt to estimate traffic by observing their site during peak hours and extrapolating daily volumes, a method that produces estimates varying by 40 to 70 percent from actual counts depending on the observer time selection and the road daily traffic distribution pattern. Others rely on Google Maps traffic layer visualisations that show congestion levels but not vehicle counts, providing a qualitative indication of traffic density without the quantitative data needed for commercial negotiations.

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Digital Billboards and the Revenue Revolution That Changes the Landlord Equation#

The transition from static printed billboards to digital LED display screens is transforming the economics of outdoor advertising sites in ways that dramatically increase the revenue generated per site while raising questions about how landlords should participate in the enhanced value. A traditional static billboard displays a single advertiser campaign for a minimum period of one month, generating one rental payment from one advertiser per display period. A digital billboard displays rotating advertisements from multiple advertisers in 8 to 15 second slots, serving 6 to 8 advertisers simultaneously across a single display surface, multiplying the advertising revenue per site by a factor of 3 to 6 compared to static equivalents in the same location. In South Africa, digital billboard installation has accelerated rapidly with an estimated 2,400 digital sites operational by 2025, up from approximately 800 in 2020, concentrated on major highways and urban arterials in Gauteng, Western Cape, and KwaZulu-Natal. The media companies that invest ZAR 1.2 million to ZAR 3.5 million in digital screen installation on a site previously hosting a static billboard immediately multiply the site revenue capacity, but the landlord rental typically remains at the level negotiated for the static installation unless the lease contains a revenue-sharing provision that adjusts for increased site income. Most existing billboard leases do not contain digital upgrade provisions because they were negotiated before digital became commercially viable, creating windfall gains for media companies that upgrade sites to digital while continuing to pay static-era rentals to landlords who may not even be informed that the upgrade has occurred until they notice the illuminated screen where a printed panel previously hung. In Ghana, digital outdoor advertising is at an earlier stage with approximately 180 digital screens operational in Accra and Kumasi, but the growth trajectory is steep as brand advertisers demand the creative flexibility and campaign measurement capabilities that digital provides. Nana Akua current static billboard site is a candidate for digital upgrade given its motorway location and high traffic volume, and the media company has indicated interest in installing a digital screen at its own cost. The lease implications of this upgrade are significant. If the static site generates advertising revenue of GHS 25,000 monthly and the digital upgrade multiplies this to GHS 75,000 to GHS 120,000 monthly, should Nana Akua rental remain at GHS 4,200 or should it increase to reflect the enhanced revenue capacity of her site? The media company bears the capital cost of the digital screen and the operating costs of higher electricity consumption, content management, and technology maintenance. The property owner contributes the location whose commercial value the digital screen amplifies. The equitable allocation of digital revenue between landlord and media company is a question that the outdoor advertising industry across Africa has not resolved through market norms because digital penetration is too recent and lease renegotiations too few to have established precedent.

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Billboard Site Portfolio Management and How AskBiz Creates Landlord Intelligence#

Property owners with billboard sites typically manage the relationship as a minor element of their overall property portfolio, dedicating minimal attention to a lease that generates steady income without tenant management complexity. This passive approach is rational when the landlord lacks the data to determine whether the site is optimally priced, but it becomes costly when the information asymmetry between landlord and media company allows lease renewals to occur at below-market rates year after year while the site advertising value appreciates with traffic growth, digital capability, and increasing advertiser demand for outdoor media. AskBiz provides property owners with the lease management and revenue benchmarking tools that transform billboard site ownership from a passive income line into an actively managed asset. The financial tracking module records every billboard lease across a property owner portfolio with rental amount, lease term, renewal dates, escalation provisions, and the landlord share of site revenue where revenue-sharing provisions exist. When Nana Akua lease renewal approaches, the system surfaces the renewal date with sufficient advance notice to prepare a negotiating position rather than receiving a renewal notice from the media company with a 30-day response deadline that leaves insufficient time for market research. The Customer Management module maintains the relationship with each media company tenant including communication history, maintenance requests, compliance with lease conditions regarding structural integrity, electrical safety, and regulatory permits, and the payment history that reveals whether rental payments arrive consistently on time or whether the media company has developed a pattern of late payment that suggests financial stress or operational carelessness. Decision Memory captures the negotiation history of each billboard lease, recording the initial rental proposal, the landlord counter-proposal, the agreed terms, and the rationale behind the agreement, creating a reference that informs future negotiations with the same or different media companies. When Nana Akua negotiates the renewal of her Accra-Tema motorway site, the system contains the history of the original 2019 negotiation, the competing media company informal revenue indication, and any market intelligence gathered during the lease period that strengthens her negotiating position. The Daily Brief for a property owner with multiple billboard sites alongside conventional retail and office tenancies consolidates all property income into a morning view showing rental receipts, upcoming lease events, tenant health indicators, and maintenance items across the entire portfolio, ensuring that billboard sites receive the same management attention as the retail and office tenancies that typically dominate a property owner focus.

Airspace as Asset Class and the Market Data That Would Unlock Institutional Interest#

Billboard sites represent a subset of a broader airspace asset class that includes telecommunications tower sites, rooftop solar installations, drone landing pads, and any other use of the vertical space above a property that generates income independent of the building primary function. In mature markets, airspace rights have been separated from property ownership and traded as distinct assets, with telecommunications tower companies like American Tower Corporation and IHS Towers holding portfolios of tower site leases valued at billions of dollars that trade on public equity markets. The outdoor advertising equivalent of this airspace securitisation has not occurred in African markets because the data infrastructure that would support portfolio valuation does not exist. Valuing a portfolio of billboard site leases requires site-by-site data on traffic volume, advertising revenue potential, current rental versus market rental, lease term and renewal probability, and the regulatory risk that a particular site permit might not be renewed by the relevant municipal authority. None of this data is aggregated in any accessible format for African outdoor advertising markets. The South African Out of Home Media Association publishes industry revenue data at the aggregate level but does not report site-level economics. The Outdoor Advertising Association of Nigeria provides industry advocacy but not market data. Ghana and Kenya lack equivalent industry associations with data collection mandates. This data vacuum prevents the development of billboard site investment as a distinct asset class that could attract capital from property investors seeking diversified income streams with characteristics that differ attractively from conventional property. Billboard site income is driven by advertising market conditions rather than property market conditions, providing diversification against property cycle downturns. Lease terms of 3 to 10 years with media company tenants who maintain the structure at their own cost provide stable income with minimal landlord capital expenditure. Site values appreciate with traffic growth that correlates with economic development rather than with the credit markets and interest rate cycles that drive conventional property values. AskBiz provides the data capture and reporting layer that individual property owners need to manage their billboard assets effectively while contributing to the emergence of a market dataset that would eventually enable billboard site investment to be analysed, benchmarked, and valued as the distinct asset class it deserves to become. Each property owner who tracks site revenue, lease terms, and traffic-based valuation estimates through the platform adds a data point to an emerging picture of African outdoor advertising site economics that currently exists only in the proprietary databases of media companies who have no incentive to share it with the landlords whose sites they lease.

AskBiz Editorial Team
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