Architect Contract Template India — Free Letter of Appointment (COA-Aligned)
By ArchiEaseJune 20268 min read
The architect's letter of appointment is the contract. Once signed, it governs the entire engagement: scope, fee, payment schedule, IP, and termination. The template below is COA-compliant — it references the 1989 Regulations, includes all 7 project stages, and has the acceptance block your COA registration number must appear on. Copy it, fill in the highlighted fields, and send.
When to use this template
Use this for any new architecture or interior design engagement in India — residential, commercial, or institutional. It covers the standard case: full architectural services across all 7 COA stages. If you are being appointed for partial services only (e.g., working drawings only), mark the excluded stages as such in Section 3.
For very large projects (fee over ₹25 lakh), have a lawyer review before signing. For standard studio work, this template is sufficient.
The template
Replace every highlighted field with your project's details. All fee percentages below reflect COA mandatory minimums — do not reduce them.
LETTER OF APPOINTMENTArchitectural Services
Date: _______________
From:
[Client Full Name / Company Name][Client Address][Client GSTIN, if applicable]
To:
[Architect / Firm Name][Firm Address]
COA Registration No: [COA Reg. No.]
GSTIN: [GSTIN]
Dear [Architect Name],
We are pleased to appoint you as the Architect for the project described below, on the terms set out in this letter. This appointment is governed by the COA Conditions of Engagement and Scale of Charges under the Architects (Professional Conduct) Regulations, 1989.
1. Project Particulars
Project Name: [Project Name]
Site Address: [Site Address]
Project Type: [e.g. Individual Residence / Commercial Office / Mixed-Use]
Approximate BUA: [sq ft / sq m]
Estimated Cost of Works (excl. land): ₹[Amount]2. Nature of Services
Comprehensive Architectural Services across the following COA stages:
Stage 1 — Concept Design [✓ Included / — Excluded]
Stage 2 — Preliminary Design [✓ Included / — Excluded]
Stage 3 — Statutory Approvals [✓ Included / — Excluded]
Stage 4 — Working Drawings & Tender [✓ Included / — Excluded]
Stage 5 — Appointment of Contractor [✓ Included / — Excluded]
Stage 6 — Construction Administration [✓ Included / — Excluded]
Stage 7 — Project Completion [✓ Included / — Excluded]
Services not included unless specifically agreed in writing: structural design, MEP engineering, landscape architecture, interior architecture (if separate), contractor bill verification, day-to-day site supervision.
3. Professional Fee
Project Category: [Individual House / Non-Housing]
COA Minimum: [7.5% / 5%] of actual cost of works assigned, excluding land
Agreed Fee: [X%] of actual cost of works assigned, excluding land
Estimated Fee (on ₹[Estimated Cost]): ₹[Calculated Amount]
Documentation & Communication Charges: 10% of professional fee (mandatory under COA Regulations)
Estimated Documentation Charges: ₹[Amount]
GST: 18% on professional fee and documentation charges
Estimated GST: ₹[Amount]
The professional fee will be regularised against the actual cost of completed works at project close-out.
4. Payment Schedule
Payments are due within 15 days of invoice. The schedule below uses cumulative percentages of the agreed professional fee:
On appointment (retainer): 5% of professional fee ₹[Amount]
Stage 1 completion (Concept Design): 10% (cumulative) ₹[Amount]
Stage 2 completion (Preliminary): 20% (cumulative) ₹[Amount]
Stage 3 completion (Approvals): 35% (cumulative) ₹[Amount]
Stage 4 completion (Working Drawings): 45% (cumulative) ₹[Amount]
Stage 5 completion (Contractor): 55% (cumulative) ₹[Amount]
Stage 6 — at 50% construction: 75% (cumulative) ₹[Amount]
Stage 6 — at 90% construction: 90% (cumulative) ₹[Amount]
Stage 7 completion: 100% (regularised) Balance
All invoices will include GST and documentation charges at the applicable stage proportion.
5. Client Responsibilities
The Client shall provide, at no cost to the Architect:
(a) A clear, written project brief before Stage 1 commences.
(b) Original site documents, survey drawings, and proof of title.
(c) Access to the site for surveys, inspections, and site visits.
(d) Decisions and approvals within 10 working days of submission.
(e) Payment of all statutory fees, authority charges, and NOC costs.
(f) Names and contact details of all consultants and contractors appointed by the Client.
Client-directed design changes after stage approval constitute additional services and will be billed separately at agreed rates.
6. Reimbursable Expenses
The following are reimbursable at cost with a 10% handling charge:
— Travel beyond 30 km from the Architect's office for site visits
— Physical models, large-format printing, and physical sample procurement
— Authority submission fees paid by the Architect on the Client's behalf
The following are excluded and are the Client's direct responsibility:
— Structural engineer, MEP engineer, and any specialist consultant fees
— Statutory authority fees and levies
— Contractor costs
7. Intellectual Property
All drawings, models, documents, and designs produced by the Architect remain the intellectual property of the Architect under the Copyright Act, 1957. The Client receives a non-exclusive licence to use these documents for the specific project described in this letter only. Reproduction or use of these designs for any other project requires the Architect's prior written consent.
8. Termination
Either party may terminate this appointment with 30 days' written notice. On termination, the Client shall pay all fees earned to the date of termination, calculated on a pro-rata basis for any partially completed stage, plus all reimbursable expenses incurred to date. The Architect's documents shall not be used for further construction after termination without the Architect's written consent.
9. Dispute Resolution
In the event of a dispute, both parties agree to first attempt resolution through mutual discussion within 30 days of the dispute arising. If unresolved, the matter may be referred to COA mediation. Any legal proceedings shall be subject to the exclusive jurisdiction of the courts at [City], India.
10. Acceptance
This letter of appointment shall become binding when signed by both parties.
For and on behalf of the Client:
Name: ___________________________
Designation: ___________________________
Signature: ___________________________
Date: ___________________________
Place: ___________________________
For and on behalf of the Architect / Firm:
Name: ___________________________
Firm: [Firm Name]
COA Reg. No.: [COA Registration Number]
GSTIN: [GSTIN]
Signature: ___________________________
Seal: ___________________________
Date: ___________________________
Place: ___________________________
How to customise this template
Fill in the project particulars first
The estimated cost of works drives every fee calculation in this contract. Use the client's budget — not your estimate of what it will actually cost. The fee is regularised at close-out against the actual cost, so using the budget figure protects you if costs increase.
Choose the right fee percentage
Individual or independent house: minimum 7.5%. All other project types: minimum 5%. Do not go below these rates — it is not permitted under COA Regulations and creates problems at close-out regularisation.
Adjust the payment schedule percentages
The percentages in Section 4 are the standard COA-aligned schedule. They are cumulative — each milestone payment is deducted against what has already been received. You can adjust the Stage 6 split (50%/90% of construction) depending on how many site visits the project requires, but the total must reach 100% at Stage 7.
Mark excluded stages clearly
If you are not handling statutory approvals (Stage 3) — for example because the client has a separate liaison consultant — mark it excluded in Section 2 and adjust the Stage 3 payment percentage to zero, redistributing it to the remaining stages.
Check your GSTIN is current
Your COA registration number and GSTIN must both appear in the acceptance block. A contract without your COA number cannot establish your standing as a registered architect if there is a dispute.
Not sure what fee to charge? Use the COA fee calculator and rates guide — it covers all 13 project categories with worked examples for ₹25L, ₹50L, ₹1Cr and ₹2Cr builds.
Three things architects get wrong in contracts
1. No scope exclusion list
The most common contract dispute in Indian architectural practice is over what was and was not included. If your contract does not explicitly say "structural drawings are excluded," you will be expected to provide them. List every exclusion you can think of in Section 6.
2. Skipping the retainer
Many architects start work without collecting the appointment retainer. The 5% retainer on signing serves two purposes: it confirms the client is serious, and it covers your initial Concept Design work even if the project is cancelled. Do not waive it.
3. Missing the close-out regularisation clause
Your fee is based on actual cost of works at project completion, not the initial estimate. Section 3 includes a regularisation clause — this means if the build costs ₹1.2Cr instead of the estimated ₹80L, you are entitled to the additional fee. Without this clause explicitly in the contract, collecting that balance is difficult.
Frequently Asked Questions
What is an architect letter of appointment in India?
A letter of appointment is the contract between an architect and client. It sets out the scope of services (aligned to COA's 7 project stages), professional fee, payment schedule, IP ownership, and termination terms. Once signed by both parties, it is legally binding. It should reference the COA Conditions of Engagement and Scale of Charges under the Architects (Professional Conduct) Regulations, 1989.
Does an architect contract need to be on stamp paper?
Stamp paper is not legally mandatory for architecture letters of appointment in most Indian states. However, stamping strengthens enforceability and is advisable for projects where the professional fee exceeds ₹5 lakh. Many firms notarise the signed letter or use stamp paper as a precaution. Consult a local advocate for state-specific requirements.
Can a client change the scope of work after signing?
Yes, but any change should be documented as a written amendment to the original appointment letter. The contract includes a clause in Section 5 stating that client-directed changes after stage approval are additional services billed separately. Never accept verbal scope changes — always confirm in writing.
Who owns the drawings after the project is complete?
Under the Copyright Act, 1957, architectural drawings are the intellectual property of the architect who created them. The client receives a licence to use them for the specific project. The architect may not grant rights to reproduce the design for another project without a separate agreement. Section 7 of the template above covers this explicitly.
What is the minimum architect fee in India under COA rules?
The mandatory minimum under the COA Scale of Charges is 7.5% for an individual or independent house and 5% for all non-housing projects. An additional 10% of the professional fee is charged for documentation and communication. These are minimums — an architect may not contractually agree to charge below these rates.