Design Stage Fee Split Tool by Avenir Developments

The free Design Stage Fee Split Tool by Avenir Developments follows RIBA and AIA Plan of Work standards.  

Staricase Design Tool by Avenir Developments

Design Stage Fee Split — AIA / RIBA Plan of Work

Split a total architectural fee across project stages using AIA phases or RIBA Plan of Work defaults. Enter a lump-sum fee or a % of construction cost, tweak stage percentages, then click CALCULATE to get per-stage amounts, CSV export and a WhatsApp summary. All values are editable and suitable for Pakistan and international use.

Basics

Loads default stages and percentages.
For display; maths is unitless.
Lump-sum fee or % of construction cost.
Architectural scope (before tax).
0.8–1.5 (BIM level, interiors, coordination).
Added after fee split.
%

Stages & Percentages

Reset to framework defaults.
Scale all included stages to total 100%.
Should equal 100% for a full service.
0%
What the defaults mean

AIA defaults (editable): Programming 5%, Schematic Design 15%, Design Development 20%, Construction Documents 40%, Bidding/Negotiation 5%, Construction Administration 15%.

RIBA defaults (editable): Stage 0 (2%), 1 (8%), 2 (15%), 3 (25%), 4 (30%), 5 (15%), 6 (5%), 7 (0%). Real projects vary: adjust to your scope, procurement route and client agreement.

Multipliers help reflect complexity/BIM level/interiors/LEED. Taxes (if any) are shown separately.

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