Historical evidence / conceptual image
Architecture / Engineering / Consultancy Dhaka / Est. 1997
From Visionto Built Reality.
Planning, architecture, structural engineering and construction consultancy integrated across the life of a project.
An integrated approach
A building is never
just one decision.
Every project connects land, architecture, engineering, documentation and execution.
Mantissa brings these disciplines together to help move projects from initial possibility toward buildable reality.
Selected documented work
Range shown
through facts.
Historical project records are carefully attributed and distinguished from client-approved corporate case studies. All imagery remains conceptual.
Historical evidence / conceptual image
Historical evidence / conceptual image
Historical evidence / conceptual image
Development journey01 / 08
One connected process
Eight decisive stages.
Follow the disciplines that move a project from early understanding to built reality.
01Planning
Before we build,
we understand.
Every successful project begins with understanding the site, its potential, its limitations and its relationship with the larger environment.
MEDIA / 01Empty site / masterplan
02Architecture
Ideas take form.
Architecture transforms planning, purpose and context into spaces designed to function, endure and contribute to their surroundings.
MEDIA / 02Masterplan / building mass
03Foundation
What rises above
begins below.
Foundation engineering establishes the connection between structure and ground, providing the basis upon which the complete project depends.
MEDIA / 03Ground section / foundation
04Structural Engineering
Beautiful outside
Calculated within.
Structural engineering turns architectural intent into a coordinated system of columns, beams, slabs, cores and foundations designed to perform.
MEDIA / 04Foundation / structural skeleton
05Documentation
Every detail
resolved.
Technical documentation translates complex design and engineering decisions into coordinated information for approval, estimation and construction.
MEDIA / 05Model / engineering information
06Construction Management
Design is only
the beginning.
Construction management connects design intent, engineering requirements, project teams and execution throughout the development process.
MEDIA / 06Digital model / active site
07Site Supervision
Precision continues
on site.
Professional supervision helps protect engineering quality and design intent as drawings become physical construction.
MEDIA / 07Construction / inspection
08Built Reality
From an idea
to a place for life.
The result is more than a completed structure. It becomes a place where people live, work, meet, grow and create value.
Start a Project
MEDIA / 08Completed building / blue hour
About the practice
Dhaka / BangladeshSince 1997
29+
years since establishment
Design thinking.
Engineering discipline.
Execution awareness.
Mantissa is a Dhaka-based engineering and design consultancy established in 1997, bringing connected technical disciplines into one practice.
Its documented experience spans planning, architecture, structural and foundation engineering, project information, coordination, supervision and existing-building intervention.
Integrated practiceEight connected services
Selected expertise
Eleven documented sectorsDifferent purposes.
One disciplined approach.
Documented experience across varied project types, each approached through connected planning, design and engineering decisions.
01ResidentialHomes and residential developments shaped around daily life, efficient structure and long-term use.
02CommercialCommercial buildings where planning, usable floorplates, structure and technical documentation must work together.
03Mixed-UseIntegrated developments that coordinate multiple programs, users, circulation systems and technical requirements.04Government / Public SectorPublic projects where clear scope, accountable documentation and coordinated technical information are central.05OfficeWorkplaces that balance functional planning, structural efficiency, services coordination and a clear public identity.
06Industrial / RMGFacilities driven by operational logic, structural performance, large floor areas and disciplined site coordination.07HealthcareCare environments where circulation, technical coordination and reliable structural systems require particular attention.
08InstitutionalPurpose-led buildings and specialist facilities that support organizations, communities and enduring public use.
09ReligiousPlaces for gathering and reflection where structure must respond sensitively to form, purpose and community.10Infrastructure-Related FacilitiesBuildings and specialist structures that support larger public, mobility or organizational systems.11Existing Buildings / RetrofitAssessment and intervention for structures facing repair, extension, conversion or strengthening requirements.12View all sector detailsResearch & technical thinking
Analysis before
assertion.
2017 / Direct publication evidence
Rammed earth, thermal comfort and energy use
The study modelled rammed-earth external wall systems for a low-cost house in Bangladesh and compared thermal-comfort and energy-use measures across different wall thicknesses.
The published paper explicitly acknowledges support from Mantissa Design and Consultant, Dhaka.
Explore ResearchSpecialized capability
Structures can
have a next chapter.
Historical project and research records document assessment, retrofit, column jacketing, footing intervention and structural strengthening work.
- Structural evaluation
- Repair & retrofit design
- Building extensions
- Structural strengthening
Common questions
Answers, before
the first question.
- What does Mantissa Design & Consultant do?
- Mantissa Design & Consultant is a Dhaka-based engineering and design consultancy working across planning, architecture, structural engineering, foundation engineering, technical documentation, construction coordination, site supervision and existing-building retrofit.
- Where is Mantissa Design & Consultant located?
- Mantissa is based in Dhaka, Bangladesh, at House 441, 3rd Floor, Road No. 30, Dhaka 1206, and works with clients across Bangladesh.
- When was Mantissa established?
- Mantissa Design & Consultant was established in 1997 and has documented multidisciplinary project and research experience across Bangladesh.
- What kinds of projects and sectors does Mantissa work on?
- Documented Mantissa-linked experience spans residential, commercial, government and public-sector, industrial and RMG, healthcare, institutional, religious and existing-building retrofit projects.
- What structural and foundation engineering services does Mantissa provide?
- Mantissa's documented experience includes reinforced-concrete (RCC) structural analysis and design, detailing and verification, together with shallow and deep foundation systems such as pile, mat, raft, combined and individual footings and retaining structures.
- Does Mantissa work on existing buildings and retrofit?
- Yes. Historical project and research records document structural assessment, repair and retrofit, column jacketing, footing intervention, building extension and structural strengthening of existing buildings.
- How can I contact Mantissa Design & Consultant?
- You can reach Mantissa by phone at +880 2-9883635 or by email at info@mantissadesign.com, or send a project enquiry through the contact page describing the site, project stage and technical support needed.
Start a conversation
Every project starts before the first line is drawn.
Tell us what you are planning.