⚠
Representative Demonstration Data. Default inputs are indicative assumptions drawn from GEC's private-industry costing models, editable for any real project. This calculator is a simplified companion to GEC's full Excel Investment Dashboard workbooks and must not be relied upon for any financial, investment, procurement, or engineering decision without a full GEC-prepared feasibility study.

Project Type

-

Private Industry Feasibility Input

Drives Development Margin % in the Feasibility Scoring tab. Leave at 0 to skip.

Total investment cost breakdown

-

Weighted Criteria - score each 1 (poor) to 5 (excellent)

Criterion
Weight
Score
Weighted
Overall Feasibility Score (out of 5)
-
Verdict
-

Options analysis: proceed vs hold

Proceed - Develop as Modelled

-
out of 5.00

Hold - Retain Capital / Do Not Proceed

2.00
Fixed status-quo baseline

Each row uses GEC's default assumptions for that project type (not your edited overview inputs) with a neutral score of 3/5 on the judgement-based criteria, so the comparison is apples-to-apples. Ranked by overall feasibility score - the highest-ranked option is highlighted.

Options scoring matrix

RankProject TypeTotal Investment (Incl. VAT)Cost / m²Escalation RiskFeasibility ScoreVerdict

How the numbers are calculated

Base cost = Extent × Units × Rate.
Pre-tender escalation compounds the base cost monthly over the pre-tender period.
Construction escalation compounds again over the construction period.
Professional fees are applied to the fully-escalated construction cost.
Total investment = escalated cost + fees + land/acquisition, then VAT is added.

Scoring matrix weights

Capital Cost Efficiency 20% · Affordability/Development Margin 20% · Programme/Time-to-Market 15% · Cost & Escalation Risk Exposure 15% · Buildability/Delivery Complexity 15% · Sustainability/Market Positioning 15%.

Margin and escalation-risk scores are auto-derived from your inputs; the rest are judgement calls you set on a 1–5 scale.

Companion Excel workbooks

This calculator is a simplified, web-based companion to GEC's full private-industry Excel Investment Dashboards (formula-driven, zero calculation errors), one per project type:

Project TypeWorkbook
Apartment BlockApartment Block - Private Industry Dashboard.xlsx
Residential DevelopmentResidential Development - Private Industry Dashboard.xlsx
Residential HousesResidential Houses - Private Industry Dashboard.xlsx
Industrial / Warehouse FacilityIndustrial Office - Private Industry Dashboard.xlsx
New Office BuildingNew Office - Private Industry Dashboard.xlsx
Office Building RefurbishmentOffice Refurbishment - Private Industry Dashboard.xlsx
Residential RefurbishmentResidential Refurbishment - Private Industry Dashboard.xlsx

⚠ Platform & Dashboard Data Disclaimer

Effective: July 2026  ·  Global Executive Consultants (Pty) Ltd  ·  South Africa
⚠   Representative Assumptions - Not a Substitute for a Full Feasibility Study
1

Representative Data & Demonstration Purpose

Default assumptions in this calculator are indicative, representative figures drawn from GEC's private-industry costing models, provided as a starting point only.

No figure shown constitutes, represents, or should be interpreted as a quotation, valuation, or costing for any real project, client, or site.
2

Simplified Companion Tool

This web calculator is a simplified companion to GEC's full Excel Investment Dashboard workbooks, which model construction costs, escalation, professional fees, and affordability across multiple detailed line items.

For an actual investment decision, request a full GEC-prepared feasibility study using the complete Excel Investment Dashboard for your project type.
3

No Reliance on Displayed Data

Users must not rely on, act upon, cite, or reproduce any figure, score, chart, or recommendation displayed herein for any engineering, structural, safety, compliance, financial, investment, procurement, or regulatory decision.

Any such reliance is entirely at the user's own risk. GEC expressly disclaims all liability for any loss, damage, or consequence arising from unauthorised reliance on this calculator's outputs.
4

Intellectual Property

All platform designs, dashboard architectures, data models, algorithms, visualisations, and interface concepts are the exclusive intellectual property of Global Executive Consultants (Pty) Ltd. Reproduction, reverse-engineering, or commercial use without written authorisation is strictly prohibited.

5

No Engineering or Financial Advice

Nothing displayed constitutes professional engineering advice, a feasibility opinion, a financial recommendation, or a regulatory determination. All formal advisory services are provided exclusively through written mandate agreements with qualified GEC Pr.Eng principals.

6

Limitation of Liability

To the fullest extent permitted by South African law, Global Executive Consultants (Pty) Ltd, its directors, principals, employees, agents, and affiliates shall not be liable for any direct, indirect, incidental, consequential, or punitive damages arising from access to, use of, or reliance upon any content or data displayed on this platform.
7

Enquiries

For a full feasibility study or partnership enquiries: [email protected]  ·  +27 81 236 9123