The Designers
The architect leads design: they translate your requirement into drawings, ensure the building complies with local bylaws (FAR, setbacks), and usually coordinate approvals. Only a Council of Architecture (COA)-registered professional may legally use the title "Architect" in India.
The structural engineer makes the design stand up safely — sizing the columns, beams, slabs and foundation, and specifying steel and concrete grades. The MEP engineer designs the mechanical, electrical and plumbing services. The interior designer handles the inside once the shell is built. On a small home some of these roles are combined; on a large project they are distinct specialists.
The Builders
The (main / general) contractor is the party who actually builds, under contract to you. They may employ workers directly or, more commonly, engage subcontractors for specialised trades — a plumbing subcontractor, an electrical subcontractor, a waterproofing specialist — each responsible for one scope.
Beneath them sits the labour contractor, known across much of India as the thekedar: someone who supplies and supervises the workforce (masons, helpers) but not necessarily materials. The distinction between "contractor", "subcontractor" and "labour contractor" is exactly where a lot of confusion — and disputes over who is responsible for what — begins. We break it down in a dedicated article.
Developer, Builder, Promoter
These three words get used interchangeably but have a specific meaning under RERA. A developer / promoter is the entity that undertakes a project to sell — they own or control the land, arrange the design and construction (often through contractors), and market the units. In everyday speech people also call this party "the builder", which is why "builder" is ambiguous: sometimes it means the developer selling flats, sometimes the contractor doing the physical work.
If you are buying an under-construction flat, your counterparty is the developer/promoter, and RERA registration is how you verify them. If you are getting your own plot built, you hire a contractor directly and there is no developer in the picture.
The Overseers
On larger or higher-value jobs, an independent layer watches quality and progress on your behalf. A Project Management Consultant (PMC) manages the whole project — schedule, cost, coordination between designers and contractor — for a fee, without being the contractor themselves. This independence is the point: the PMC's job is to protect your interest.
On site day-to-day you may find a site engineer (technical supervision, quality checks, measurements), a site supervisor (running the crew), and on formal contracts a clerk of works or quantity surveyor who measures completed work and values it. A homeowner often plays the "overseer" role themselves, or hires a PMC to do it professionally.
Who You Actually Need
Building one home on your own plot? Typically: an architect (with structural engineer) for design and approvals, and one contractor to build. That's the core. Add a PMC only if you cannot supervise yourself and the project is large.
Buying a flat? You deal with the developer/promoter — verify their RERA registration and track record; the rest of the cast is their responsibility, not yours. Renovating? Often just a contractor and, for anything structural, an engineer's sign-off.
Frequently asked
What is the difference between a builder and a contractor?
Do I need a project management consultant (PMC)?
Is a thekedar (labour contractor) the same as a contractor?
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