In the low-voltage electrical design of high-rise buildings and commercial offices, the focus is onsystem integrationandScalabilityThe following is a compilation of design examples and estimated market prices in Taiwan for 2025-2026 for your reference. Examples and estimates of low-voltage electrical system design for buildings/commercial offices (general market rates and case studies in Taiwan)This will help you when negotiating with design/engineering companies. Reference for bid and offer expectations:

📌 Low-voltage system design examples and estimated costs

🧾 1. Low-voltage electrical design and planning for commercial office buildings (including drawings and documents)

📌 The content includes (design phase)

Overall Low Voltage System Architecture Diagram
Low-voltage wiring diagram (network/surveillance/access control, etc.)
Equipment room and wiring closet diagram
Integrated Equipment List and Specifications
Drawings and documents required for NCC/telecommunications-related audits (if needed)
💡 This stage involves the production of design and planning documents, and the price is usually quoted based on the building's floor area and system complexity.

📌 Scope of estimate (design documents only, excluding construction)

Small to medium-sized designs (e.g., ~50–100 ping): Approximately NT$50,000 – 150,000(Depending on the number of system projects and the level of detail in the output drawings).
Large commercial office buildings (e.g., an entire floor of 500 ping or more):NT$150,000 – 400,000+(The higher the complexity, the higher the price).

👉 Design fees typically include site surveys, design drawings, and basic specifications; if you require additional fees... NCC submission document preparation and assistanceAdditional charges may apply (due to the significant workload involved in design and submission of documents). (Pricing information is based on common pricing structures for low-voltage electrical design and system services.)

🛠️ 2. Construction of low-voltage electrical systems for commercial offices (design + equipment + construction)

📌 A typical system may include

Network cabling (data network/fiber optic backbone/cable tray planning)
Surveillance system (CCTV + recording host)
Access control/intercom system
Telephone Exchange/Office Switchboard System
Conference audio-visual system / Smart control (optional)

Compiled based on market data (including equipment, wiring, labor, and basic construction):

📊 Valuation Examples

Small to medium-sized offices (e.g., 30–50 pings):NT$200,000 – 500,000
• This range may apply to simpler systems such as network, basic monitoring, and access control.
Medium to large office space (including server room, smart access control, audio-visual conferencing, and integrated network):
NT$1,000,000 – 3,000,000+
• When the complexity is high (including server room, fiber optic backbone and multi-floor system integration), it may exceed one million.

👉 Main factors affecting prices

Building floor area and number of floors / Cabling architecture complexity
Equipment brand and performance level (high-end network equipment, high-definition surveillance cameras, etc.)
Does it contain Design / Drawing / Document Review With professional assistance (such as NCC review).
On-site construction conditions (e.g., demolition of old buildings/replacement of piping, etc.)
The project is on a tight schedule and requires nighttime work (which may incur overtime pay).

📌 Example of Low-Voltage Electrical Design Process for Commercial Offices (Common Steps)

Requirements communication and site survey
- Confirm the system list (network, surveillance, access control, intercom, etc.)
- Understand the on-site cabling environment and server room location
Design and drawing output
- System architecture diagram, cabling path diagram
- Computer room equipment configuration and weak current box location diagram
List and Specifications Compilation
- Equipment yield, spare parts requirements and brand specifications
Documents submitted for review(If NCC or owner review is required)
- Drawings/Calculation Sheets and System Planning Specifications
Construction and Testing
- Construction scheduling and material delivery
- System testing and integration
Acceptance and maintenance delivery
- Provide "As-built Drawings" and Maintenance Manual

💡 Case Study

🔹 Typical commercial office buildings such as Taipei Nanshan Plaza or Lianqiang International Building For these high-end commercial offices, the design and integration of their low-voltage electrical systems must be handled by a professional design firm in conjunction with a turnkey engineering team (from design to construction integration). Therefore, when planning, please consider whether to combine this with a comprehensive building turnkey service or outsource the design and construction of low-voltage electrical systems.

📌 Quick Reminder (Key Questions to Ask Before Negotiating a Contract)

✅ Does the design fee include redrawing services for "post-construction changes"?
✅ Does it contain NCC Submission Documents and Assistance (If there is an NCC system device)
✅ Design drawing delivery formats (CAD / PDF / BIM, etc.)
✅ Does it include maintenance or a one-year warranty?

If you want, I can still Typical price list for disassembling various low-voltage systems (such as surveillance, access control, and information networks).This will allow you to more accurately compare different solutions and vendor quotes! (Want one?)

1. Low-voltage electrical design example (taking a standard 100-ping commercial office as an example)

A complete low-voltage electrical design will include the following system configurations:

Network and Communication Systems (ICT):
- design: Set up server racks and patch panels, configure 1-2 sets of information outlets (Cat6 standard) per 10 pings, and deploy 2-3 Wi-Fi 6/7 wireless access points (APs) to cover the entire area.
Security monitoring system (Security):
- design: IP cameras are installed at the entrance, server room, and main corridors. The entrance integrates access control card readers (electric lock/facial recognition) with video intercoms.
Smart Office and Monitoring (BMS):
- design: Lighting and air conditioning are linked for control (energy-saving mode), and in conjunction withFlowmeterMonitor the flow rate of chilled water in air conditioning systems or the amount of gas used in the plant to ensure energy efficiency.

2. Valuation Items and Market Reference (Latest Data 2025-2026)

The cost of low-voltage electrical engineering is usually borne byEquipment cost,Wire parts costandlabor costsComposition. The basic setup cost of a single system is approximately in the range of... NT$9,000 ~ $37,000 The value varies depending on the complexity.

Engineering Project	Valuation reference price (NT$)	Remark
Information outlets/network points	$600 ~ $1,800 / point	Includes cable management and information panel installation
Network cabling (Cat6)	$80 ~ $150 / meter	It depends on whether cable trays or groove sealing are required on site.
Monitor (including installation)	$4,000 ~ $8,000 / piece	View resolution (2MP/4MP) and whether or not a recording host is included
Access control system (single door)	$8,000 ~ $20,000 / set	Includes sensors, electric locks, and linkage settings.
Server rack organization and wiring boxes	$15,000 ~ $20,000 / unit	Includes replacement of low-voltage electrical boxes and neat bundling of wiring.
Telecommunication box (empty box)	$3,600 ~ $11,000 / unit	It depends on the dimensions (width, height, thickness).

3. Quotation and Construction Notes

Separation of strong and weak currents: Low-voltage wiring should be kept separate from high-voltage (110V/220V) wiring. 30-50cm The above spacing is to avoid signal interference that could cause network outages or image flickering.
Pipeline protection: The conduit outlets inside the wiring box should be equipped with "flared" protection to prevent cables from being cut by the conduit openings.
Integrator: For commercial offices or factories requiring precise instrumentation (such as flow monitoring and pressure monitoring), it is recommended to find a supplier like [Company Name - likely a company name]. First General Motors (FGT) This can provideSystem Integration SpecificationAnd assist SI vendors in connecting to the backend platform.

Do you need to provideUpgrade the low-voltage electrical system in the existing office,stillNew building construction projectWhat was the initial design plan?

<——-Contact FGT Group's First General Engineering Design Team immediately