MEP Budget Band Estimator

D-BB-001 v1.16.0 | Developer Tool

SCSI TPI H2 2025

Irish Market Data

📝 Project & Building

Project Name

Building Type * ?What: Primary building use — biggest determinant of MEP cost.
Typical: Healthcare most expensive. Retail shell cheapest.
Source: SCSI TPI H2 2025 / BCIS SFCA
⚠ Mixed-use: estimate each component separately

Gross Floor Area (m²) * ?What: Total GFA for MEP cost estimation.
Typical: Small: <2,000m² | Medium: 2,000–10,000m² | Large: >10,000m²
Source: Architect's area schedule
⚠ Use GFA not NIA — MEP costs benchmarked against GFA

Quality Level ?What: Build quality and specification level.
Typical: Standard: code-compliant. Premium: top-tier.
Source: SCSI classification
⚠ Premium can be 50–60% more than standard.

⚡ Energy & Servicing

Energy Target ?What: Energy performance target — directly affects MEP cost.
Typical: NZEB adds 8–15% over Part L. Net Zero adds 15–25%.
Source: TGD Part L 2021 / SEAI
⚠ Net Zero not yet regulatory but increasingly demanded

Servicing Strategy ?What: Who owns and operates the HVAC plant.
Typical: Central: higher CAPEX, lower OPEX.
Source: LBE project data / CIBSE Guide F
⚠ Tenant-led VRF: 5–10% lower CAPEX, 15–20% higher running cost

🔌 Special Loads

EV Charging Points ?What: Number of active EV charging points.
Typical: Office: 20% of parking. Residential: 100% ducted, 20% active.
Source: TGD Part L 2021
⚠ Each active point adds €2,500–4,500

Commercial Kitchen

Server / Comms Room

Swimming Pool

💰 MEP Budget Band — Unnamed Project

Low

—

Mid Estimate

—

High

—

———

SCSI TPI H2 2025 | ±—% range

📊 Cost Breakdown

Component	Low	Mid	High

🎯 Top Cost Drivers

💡 Value Engineering Opportunities

⛔ Excluded from Budget Band

⚠️ IMPORTANT

This tool provides indicative guidance only. It does not constitute professional advice, a formal assessment, or a compliance check. All outputs should be verified by a qualified MEP engineer before use in any decision-making process.

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Standards: SCSI TPI H2 2025 · RICS NRM1 (2021) · CIBSE Guide M · TGD Part L 2021

D-BB-001 v1.16.0 | Sources: SCSI TPI H2 2025, RICS NRM1, AACE 18R-97, TGD Part L 2021