Studio Project Planner

ARCHITECTURE & INTERIOR DESIGN — JAPAN

01 · Type

02 · Info

03 · Scope

04 · Schedule

05 · Costs

06 · Fees

07 · Summary

STEP 01 / 07

Project Type

Define the nature and scope of the commission

Discipline

Architecture

Interior Design

Architecture + Interior

Master Planning

Landscape

Project Category

New Build

Renovation / Kaishu

Extension

Interior Fit-Out

Conversion

Restoration

Sector

Residential — Private

Residential — Multi-unit

Commercial Office

Hospitality / Hotel

Retail

F&B / Restaurant

Cultural / Civic

Healthcare

Education

Industrial

Mixed Use

Location & Regulatory Context

Prefecture / Region

Building Permit Zone (用途地域)

Seismic Design Standard

Listed / Heritage Status

STEP 02 / 07

Project Information

Client, site, and programme details

Client & Project

Client / 施主

Project Name / プロジェクト名

Site Address / 所在地

Building Confirmation Authority (確認申請先)

Project Reference

Programme & Area

Total Floor Area — GFA (m²)

Site Area (m²)

Number of Storeys

Basement Levels

Residential Units (if applicable)

Floor-Area Ratio — FAR (容積率 %)

Programme Brief

Project Brief / 設計概要

Key Dates

Appointment Date

Target Completion

Building Permit Target

STEP 03 / 07

Scope of Work

Select all services included in the appointment

Architectural Services

Feasibility Study (事前調査・法的調査)

Concept Design (基本構想)

Schematic Design / Basic Design (基本設計)

Design Development (実施設計準備)

Detailed / Working Drawings (実施設計)

Building Permit Application (確認申請)

Long-Life Housing Certification (長期優良住宅)

Tender / Procurement (見積・発注支援)

Construction Administration / Site Supervision (工事監理)

Post-Occupancy Evaluation

BIM Modelling (BIMモデル)

Visualisations / CG Renderings (CG作成)

Interior Design & FF&E Services

Interior Concept Design (インテリア基本構想)

Interior Detailed Design (インテリア実施設計)

Materials & Finishes Specification (仕上げ仕様)

Lighting Design (照明設計)

FF&E Design & Specification (家具・備品設計)

FF&E Procurement Management

Bespoke Furniture Design (特注家具設計)

Artwork & Styling Curation

Specialist Coordination & Other Services

Structural Engineering Coordination (構造設計調整)

MEP / Equipment Engineering Coordination (設備設計調整)

Seismic Retrofit Design (耐震改修設計)

Fire Engineering (消防設備設計)

Landscape Design (外構・ランドスケープ)

CDM / Safety Management (安全管理)

Acoustic Design (音響設計)

Sustainability / ZEB Assessment (ZEB評価)

Planning / Development Consultation

Project Management (工程管理)

STEP 04 / 07

Project Schedule

Programme stages with start dates and durations

Global Start Date

Design Programme Start

Stage Programme — Toggle, adjust weeks & start date override

Gantt Overview

STEP 05 / 07

Construction Costs

Japan-market cost modelling by structure type and element

Indicative rates sourced from Japanese market data (2024–25). Costs vary by prefecture, spec level, and market conditions. Tokyo rates shown — apply regional factor for other prefectures. All figures in Japanese Yen (¥). Consumption tax (消費税) at 10% applies.

Structural Frame Type & Indicative Rate

🪵 Timber Frame (木造)

¥150,000–220,000 /m²

Traditional Japanese method (在来工法) or 2×4. Residential focus. Fast build, lower cost. Requires regular maintenance.

🔩 Light Steel Frame (軽量鉄骨造)

¥220,000–280,000 /m²

Mid-rise residential and commercial. Good seismic performance. Faster erection than RC.

⚙️ Heavy Steel Frame (重量鉄骨造)

¥280,000–350,000 /m²

Large-span commercial, industrial. High flexibility for open plans. Often used in S造 buildings.

🏗️ Reinforced Concrete — RC (鉄筋コンクリート造)

¥300,000–420,000 /m²

Residential, medium-rise. High durability, 60–100+ year lifespan. Higher upfront cost; lower maintenance. Tokyo avg ¥416k/m².

🏢 Steel RC (SRC 鉄骨鉄筋コンクリート造)

¥380,000–500,000 /m²

High-rise, skyscrapers, complex programmes. Combines steel frame robustness with concrete mass.

🌲 Mass Timber / CLT (CLT木造)

¥240,000–320,000 /m²

Contemporary mid-rise timber. Growing in Japan following regulatory changes. Premium aesthetic; sustainability credentials.

GFA (m²) — Structural Shell

Spec Level Uplift

Regional Cost Factor

Cost Breakdown by Element

Element	Basis	Rate (¥/m²)	Amount (¥)

Interior Fit-Out & FF&E

Interior Fit-Out Area (m²)

Fit-Out Spec Level

FF&E Budget (¥)

STEP 06 / 07

Fee Estimator

Professional fees — with Japan market rate guidance

Japanese market guidance (建築士法 standard fees): Architecture design & supervision typically ranges 10–20% of construction cost for residential; 8–15% for commercial projects. Fees decrease as project value increases. Rates include design + 確認申請 (building permit application) + construction supervision. Use the 「Guide」 buttons to see indicative breakdowns.

Architecture Fees

Architectural Design & Supervision (設計監理料)

Includes basic design, DD, working drawings, permit application & site supervision

5%25%

12%

Construction Cost	Typical Arch. Fee %	Notes
Under ¥50M	15–20%	Small residential / complex programme
¥50M – ¥100M	13–17%	Medium residential / boutique commercial
¥100M – ¥200M	10–15%	Mid-scale commercial, hospitality
¥200M – ¥500M	8–12%	Large commercial, retail, mixed-use
Over ¥500M	6–10%	Large complex / institutional

Source: 建築士法 standard fee guidelines & japanese-architects.com market data 2024

Feasibility & Concept (Basic Stage)

Pre-contract investigation, zoning analysis, concept design only

0%8%

Interior Design Fees

Interior Design (インテリアデザイン料)

Concept through detailed design & specification

0%20%

Project Type	Typical Interior Fee	Notes
Residential Interior	8–18% of fit-out cost	Design + supervision
Hospitality / Hotel	6–12% of fit-out cost	Depends on FF&E procurement role
Commercial Office	5–10% of fit-out cost	Often fixed fee for larger schemes
F&B / Retail	8–15% of fit-out cost	High detail level required

FF&E Procurement Commission

% of FF&E budget managed

0%25%

10%

Expenses & Tax

Disbursements / Expenses (¥)

Consumption Tax Rate (消費税) %

Additional Specialists Budget (¥)

TOTAL PROFESSIONAL FEES (excl. tax)

¥—

incl. consumption tax: ¥—

STEP 07 / 07

Project Summary

Review all details before exporting

Project Overview

Scope Summary

Programme

Cost & Fee Summary