Due Diligence Guide · Architecture Firm

Due Diligence Guide for Acquiring an Architecture Firm

Evaluate licensure continuity, backlog quality, and key-man risk before buying a $1M–$5M architecture practice.

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Acquiring an architecture firm requires scrutiny beyond standard financials. Buyers must assess state licensure transferability, project backlog conversion probability, E&O liability exposure, and whether client relationships extend beyond the founding principal before committing capital.

Architecture Firm Due Diligence Phases

01

Phase 1: Licensure, Legal & Regulatory Review

Confirm the firm can legally operate post-close with a licensed principal in place and no unresolved regulatory or liability issues.

State Licensure Verificationcritical

Confirm all principals hold active architectural licenses in relevant states. Identify whether the firm's certificate of authorization transfers with an asset or stock purchase.

Professional Liability (E&O) Claims Historycritical

Request a full 5-year claims history from the current E&O carrier. Outstanding or unresolved claims can represent significant post-close financial exposure.

Employment & Non-Solicitation Agreementsimportant

Review existing agreements for licensed architects and project managers. Confirm non-solicitation clauses are enforceable in the firm's operating states.

02

Phase 2: Financial & Revenue Quality Analysis

Validate the sustainability and predictability of revenue, margins, and backlog across project types and client segments.

Project Backlog & Pipeline Conversioncritical

Analyze the 6–12 month signed contract backlog by project type, stage, and client. Assess realistic conversion rates for LOI-stage pipeline opportunities.

Client Concentration Reviewcritical

Identify whether any single client exceeds 20% of revenue. Flag developer, municipal, or institutional relationships that are personally tied to the founding principal.

Adjusted EBITDA & Owner Benefit Normalizationimportant

Recast financials to remove owner perks, above-market principal compensation, and personal expenses. Verify accrual-basis accounting and CPA-reviewed statements.

03

Phase 3: Operations, People & Transition Risk

Evaluate whether the firm can operate independently post-close and identify risks that could impair client retention or staff continuity.

Key-Man Dependency Assessmentcritical

Map which client relationships, design decisions, and project sign-offs depend solely on the founder. Confirm at least one licensed architect can independently lead projects.

Staff Credentials & Billable Utilizationimportant

Review licensure, ARE exam status, and billable hour rates for senior designers and project managers. High 1099 reliance without non-solicitation agreements is a red flag.

Project Management Systems & SOPsstandard

Assess whether workflows, software platforms, and documentation standards are formalized. Undocumented processes create post-close operational risk and integration friction.

Architecture Firm-Specific Due Diligence Items

  • Verify the firm's certificate of authorization in each operating state and confirm the process for reissuance or transfer upon change of ownership or responsible principal.
  • Request a project-by-project backlog schedule showing contract value, percent complete, remaining fee, and expected billing timeline for all active and signed engagements.
  • Obtain a 5-year professional liability insurance history including carrier, premium trends, claims filed, and any circumstances that could trigger future E&O claims post-close.
  • Identify all niche specializations such as healthcare, education, or multifamily and verify whether client repeat rates and fee premiums are documented and attributable to the firm versus the founder.
  • Assess software and technology infrastructure including CAD or BIM platforms, project accounting tools, and CRM systems to determine integration costs and staff retraining needs.

Frequently Asked Questions

What happens to the architecture firm's license if the founding principal leaves after the sale?

Most states require a licensed architect to serve as the responsible principal on record. Buyers must confirm a qualified replacement is in place before close or the firm risks losing its certificate of authorization.

How should buyers evaluate project backlog during due diligence?

Review only signed contracts as hard backlog. Apply realistic conversion discounts to LOI-stage or verbal pipeline. Verify that backlog projects are not personally contingent on the seller's continued involvement.

Is an architecture firm acquisition eligible for SBA financing?

Yes. Architecture firms are SBA-eligible under professional services. Lenders will scrutinize key-man risk, E&O claims history, and backlog quality as part of their underwriting for SBA 7(a) loans.

What deal structures are most common when acquiring a small architecture practice?

Asset purchases with earnouts tied to 12–24 month client retention are most common. Stock purchases paired with a 2–3 year founder consulting agreement are used when licensure continuity is a primary concern.

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