Sierra Leone · West Africa
Multidisciplinary Built Environment Solutions
We provide integrated Quantity Surveying, Project Management, Valuation, Architectural Support, and Construction services, guiding projects from concept and design through construction to the successful delivery of quality built assets.
Properties Valued
Years Experience
Client Satisfaction
Core Services
Trusted Built Environment Practice in Sierra Leone
Dennis Swen is a multidisciplinary built environment practice providing integrated services in quantity surveying, construction project management, real estate valuation, architectural support, and end-to-end construction delivery. Based in Freetown and operating across West Africa.
we serve residential, commercial, institutional, and community developments.
- ✓ Professional Competence
- ✓ Market Expertise
- ✓ Transparency & Ethics
- ✓ Value for Money
Comprehensive Built Environment Services
From initial cost planning to final handover — we provide expert guidance across every stage of your construction and property journey.
Architecture & Design
Design development services balancing creativity, functionality, and cost certainty for residential and commercial projects.
Learn More ›Built Asset Delivery
Integrated delivery services taking projects from design through construction to successful handover.
Learn More ›Construction Project Management
End-to-end project management delivering construction projects on time, within budget, and to the required quality standards.
Learn More ›QS Coaching & Mentorship
Practical coaching and mentoring for quantity surveying and built-environment professionals across West Africa.
Learn More ›Quantity Surveying
Professional cost management and financial control ensuring construction projects remain affordable, transparent, and well-planned.
Learn More ›Real Estate Valuation
Independent and reliable property valuations supporting informed investment and financial decisions across Sierra Leone.
Learn More ›Featured Projects
Some of our landmark projects across Sierra Leone
Wilkinson Road Design and Construction Project
Wilkinson Road Project ( design and construction of mixed - use development:basement storage, shops and …
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Residential Building Construction at Charlotte village ( Design and construction)
Residential Building Construction at Charlotte Village ( Design and construction)
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Residential Building Construction at kent village Village ( Design and construction)
Residential Building Construction at kent village( Design and construction)
Read More →Trusted by Leading Organisations
“Dennis Swen delivered exceptional quantity surveying services on our infrastructure project.”
“We rely on Dennis Swen for all our property valuations. Their reports are thorough and timely.”
“Outstanding project management on our community development initiative.”
Meet Our Leadership Team
a seasoned quantity surveyor and construction professional with hands-on experience in cost management, project supervision, and advisory across residential, commercial, and infrastructure projects. He leads a multidisciplinary practice known for integrity, transparency, and value-driven solutions in Sierra Leone.
over 5 years of experience in microcredit and financial services, supporting client project financing, budgeting, and cash flow. Her expertise in financial management and operations strengthens the firm's multidisciplinary service delivery.
Provides architectural leadership, design coordination, and construction supervision across residential, commercial, and institutional projects. Bridges design intent with on-site execution, collaborating closely with engineers and quantity surveyors to ensure quality, compliance, and cost-aligned delivery.