How to Start an Architecture Firm in India (2026)

Ananya spent four years as a project architect at a mid-size firm in Bengaluru — worked on twelve residential projects, led the CD phase documentation for two commercial jobs, built client relationships her principal never fully noticed. When she left to set up her own two-person studio in Hyderabad, she had her COA number, two warm leads from former clients, and a complete blank on what to do next.

She knew architecture. She did not know whether to register a proprietorship or an LLP, what GST threshold applied to her, whether she needed a separate bank account, or how to structure a fee agreement that would hold up if a client disputed a milestone payment six months in.

This guide covers everything she had to figure out in the first three months — and what the next nine looked like.

Before you register anything

Three things that have to be in place first

Before worrying about business structure, GST registration, or workspace, three things need to be true:

1. You have a valid COA registration number
2. You have at least one committed project or a real pipeline
3. You have 6–9 months of personal financial runway

Your COA registration is non-negotiable

Under the Architects Act, 1972, only a person registered with the Council of Architecture (COA) can use the title "Architect" or accept fees for architectural services. Practising without registration is a criminal offence under Section 37 of the Act.

To register, you need:

• A degree in architecture from a COA-recognised institution
• Completion of two years of Architectural Training (ATC) under a registered architect
• Submission of Form A with attested copies: degree certificate, ATC completion letter from your supervising architect, identity proof, two passport photos
• Registration fee: ₹2,500

Processing takes 4–8 weeks after submission of a complete application. Your COA number must appear on every professional document your firm issues — letterheads, invoices, fee proposals, and letters of appointment.

Pipeline before paperwork

The practices that struggle in year one are rarely the ones without a polished website or a formal office. They're the ones that resigned before they had a single committed project.

Two to three confirmed or near-confirmed projects give you enough to predict your first 6–9 months of cash flow. Anything less and you're simultaneously starting a firm and doing business development with zero income — which is much harder than it sounds when rent, groceries, and software subscriptions don't pause.

The warm lead from a former client who knows your work is worth more than any registration step. Secure the pipeline first.

Financial runway

Architecture projects are long (6–24 months) and payment milestones are infrequent. Your first invoice may come 2–3 months after starting work. Your first significant receipt may come a month after that. Plan to cover personal expenses from savings for at least the first quarter before practice income becomes reliable.

Choosing your business structure

Most first-time principals start as a sole proprietorship. Here's when that changes:

For most first-time principals: start as a sole proprietorship or partnership. The administrative overhead of an LLP or Pvt Ltd — annual ROC filings, director KYC, mandatory board meetings — is a meaningful distraction in year one when you're already doing design, client management, and billing yourself.

When to upgrade: turnover exceeds ₹75 lakh consistently, institutional or government clients require a company structure, or you want to formally separate personal and professional liability.

GST registration

GST registration is mandatory for service providers with annual turnover above ₹20 lakh (₹10 lakh in some special category states). Architecture services fall under SAC code 998311 at 18% GST.

Register early, even if you're below the threshold, for two reasons:

Commercial clients will ask for it. Corporate developers, hospitality groups, and institutional clients are GST-registered. They will ask for your GSTIN before finalising a contract and will deduct TDS on architect fees at 10% under Section 194J. Without a GSTIN, you cannot issue a proper tax invoice and many commercial clients simply will not work with you.

Composition scheme is not available. Service providers cannot opt for the composition scheme (flat 1–6% rate). You're on the regular scheme from day one, which means GSTR-1 and GSTR-3B filings regardless of turnover. Registering early means you get into this rhythm before fees start coming in, rather than scrambling to backdate registration when you cross the threshold.

How to register: visit the GST portal, complete Form GST REG-01 with your PAN, Aadhaar, bank account details, business address proof, and COA registration number. Processing takes 3–7 working days. Registration is free.

Opening a current account

Open a dedicated current account for the practice immediately — before your first payment arrives. Mixing personal and business funds is the most common financial mistake architecture firm principals make in year one. When you need to know whether the firm made money on a project, a mixed personal account makes it impossible to tell.

Documents you'll need:

• COA registration certificate
• PAN card (personal, for a proprietorship; firm PAN for a partnership or LLP)
• Identity and address proof
• Business address proof (rental agreement or utility bill)

Set up UPI for the firm's account. Most residential clients and small developers are comfortable with advance payments and milestone payments via UPI or NEFT — having a clearly separate account reinforces professionalism.

Your workspace in year one

Do not sign a lease in year one. The fixed overhead is rarely worth it.

Home studio: Works well if you have a dedicated room you can close off during working hours. Residential clients — especially high-touch ones — care about the quality of your design thinking, not your office address. Commercial and institutional clients may expect a studio visit, so plan for that possibility.

Co-working space: ₹5,000–15,000/month in most Tier 1–2 cities for a dedicated desk with a business mailing address. Useful if your home situation isn't suitable for focused work, or if you need a professional address for GST registration that isn't your flat.

Dedicated office: Only after your first year, once you have enough recurring revenue that the rent doesn't affect your quarterly financial stability. A lease you can't service in a slow quarter will make every slow quarter feel like a crisis.

Your first fee agreement

Do not start design work without a signed Letter of Appointment (LOA). This sounds obvious. Most architecture firm principals — including experienced ones — start at least one project with only a verbal understanding and a WhatsApp confirmation. When a client disputes a fee eight months later, there is very little to stand on.

At minimum, every LOA must include:

1. Project particulars — site address, client name and contact, building type, approximate area
2. Scope of services — which of the 7 COA stages are included, and which are excluded
3. Professional fee — total fee as a percentage of construction cost, or as a fixed lump sum
4. Payment schedule — percentage payable at each stage completion
5. Reimbursable expenses — what is billed separately (travel, printing, structural consultant fees)
6. IP clause — drawings remain the architect's intellectual property until all fees are cleared
7. Termination — what fee is owed for completed work if either party exits the agreement

Our free COA-aligned LOA template has all these sections — adapt it for each project rather than starting from scratch.

Getting your first three clients

Year-one clients almost always come from three sources, in roughly this order:

Former clients of your previous employer

If you've had direct client contact in your previous role — even on a project your employer led — those clients have seen your work. A personal note reintroducing yourself and your new practice is the most effective first outreach you can make. Keep it direct: "I've started my own practice in [city]. If you have a project coming up, I'd welcome the chance to work with you directly."

Your professional network

College batchmates in real estate and construction, former colleagues now at developer firms, contractors you've worked with on site — this network is larger than most architects realise. A single WhatsApp message that says "I've started my own practice — if you come across anyone looking for an architect for residential or [your niche] work, a referral would mean a lot" is often enough to generate the first conversation.

Local contractors and interior designers

Contractors and IDs interact with clients who are about to start construction projects. A mutual referral relationship — you recommend them, they recommend you — is straightforward and costs nothing.

What doesn't work reliably in year one: cold outreach to developers, Justdial and Sulekha listings, Instagram (builds long-term but rarely delivers a project quickly), and design competitions. These are year two and three activities, once you have work in the portfolio and bandwidth for business development.

Year-one finances — what to expect

A realistic financial picture for a solo practice in year one, with one or two residential projects in the ₹30L–80L construction cost range:

The single most important cash flow habit: bill every COA stage within 3 working days of completion. Not "when the client asks." Not "when I remember." Within 3 days. This single habit, done consistently, eliminates most of the cash flow stress in a small practice. See our guide on managing firm cash flow for the full picture.

Advance retainer: Every project should start with a retainer of 10–15% of the total professional fee, collected before concept design begins. This is accommodated within the standard COA payment schedule. A client who won't pay a retainer is giving you early information about how milestone payments will go later.

When to hire your first team member

Hire when you're consistently billing 15–20+ hours a week of your own time, have recurring work you can hand off (WDs, coordination drawings, client communication), and have enough incoming fee to cover salary for 6+ months without strain.

Your first hire is almost always a junior architect or intern:

Compliance when you have payroll: register under the Shops and Establishments Act in your state (online process, low cost), generate payslips monthly, and deduct TDS on salary if monthly gross exceeds ₹50,000. Consult your CA for current slab applicability. See our architect salary guide for 2026 benchmarks by city and role.

The most common year-one mistakes

Most new architecture firms don't fail because the design work is bad. They fail because of operational decisions made in the first few months:

Starting without a signed LOA. A client who disputes a fee at project close has all the leverage if there's nothing written. One disputed project can wipe out six months of income.

Billing below the COA scale. The COA minimum fee exists partly to prevent this. An architecture firm billing below 5% on a residential project is compressing its own margins to win work it will later find unprofitable.

No billing trigger. Completing a phase and not raising an invoice for 3–4 weeks. Repeated across multiple projects, this turns into ₹5–10 lakh in receivables that sit without follow-up while cash flow tightens.

Mixing personal and business accounts. Makes it impossible to know whether the firm is profitable, complicates ITR filing, and means you're running the practice blind financially.

Taking every project that comes in. A low-fee project that consumes 60% of your time for eight months is the most expensive project you'll ever take. Year one is a good time to build the discipline of saying no to work that doesn't fit your fee, timeline, or expertise.