For light renovation of small apartments under 15 ping in Taipei and New Taipei (commonly 8 to 12 ping of interior net floor area), prioritize budget for "dedicated circuits for high-wattage appliances" and "vertical depth-zoned storage", while strictly observing the Building Technical Regulations (《建築技術規則》) rule that habitable room ceiling height must not be less than 2.1 meters. Furthermore, under Article 3 of the Building Interior Renovation Management Regulations (《建築物室內裝修管理辦法》), even if you do not demolish masonry partition walls, installing a ceiling fixed to the building structure or installing fixed screens over 1.2 meters high that double as cabinets in a multi-unit building of 6 stories or more still legally constitutes interior renovation and requires an interior renovation permit. Based on building and electrical regulations verified on 2026-11-07, this article summarizes legal boundaries, cabinet depths, dedicated kitchen and washer-dryer circuits, and a budget allocation table.
Does a small-apartment "light renovation" need an interior renovation permit: legal boundaries
Many owners of studios or small two-bedroom units in Taipei and New Taipei assume that "not touching masonry walls and only building wooden ceilings and system cabinets" exempts them from an interior renovation permit—the most common reason work is halted by a management committee or fined by the building administration office. Under Article 3 of the Building Interior Renovation Management Regulations, whether work constitutes statutory "interior renovation" (室內裝修) depends on whether the items are fixed to the building structure.
| Engineering item | Legal classification (Article 3 of the Building Interior Renovation Management Regulations) | Whether an interior renovation permit is required in a building of 6+ stories (public-use building) |
|---|
| Repainting, hanging wallpaper or wall cloth, hanging curtains, laying movable rugs | Explicitly excluded from the definition of interior renovation | Exempt |
| Placing ready-made movable furniture or movable screens not fixed to walls | Explicitly excluded from the definition of interior renovation | Exempt |
| Ceilings fixed to the building structure (such as flat wooden ceilings or concealed-grid ceilings) | Constitutes interior renovation | Requires an interior renovation permit |
| Fixed screens over 1.2 meters high, or screens doubling as cabinets (such as floor-to-ceiling partition cabinets) | Constitutes interior renovation | Requires an interior renovation permit |
| Partition wall changes (demolishing or building brick walls or lightweight partition walls) | Constitutes interior renovation | Requires an interior renovation permit |
For walk-up apartments of 5 stories or fewer, if no toilet or bathroom is added and no partition walls are changed, the simplified and exempt scope for partial wall or ceiling work is broader; however, as soon as partition wall changes or adding two or more rooms or bathrooms are involved, the building administration offices in Taipei and New Taipei likewise require review and approval. For detailed review procedures and fine rules, see the site's guide to Taipei and New Taipei interior renovation permit procedures and costs.
In addition, small apartments often build "raised wooden floors (tatami storage platforms)" or "mezzanines" (夾層) to gain storage. Under Article 32 of the Building Design and Construction Chapter of the Building Technical Regulations (《建築技術規則建築設計施工編》), the ceiling height of a habitable room must not be less than 2.1 meters; if a typical building has a floor-to-floor height of 3 meters and only 2.65 meters remains after deducting the floor slab and fire sprinkler piping, raising the floor by more than 45 cm plus ceiling boarding will drop the net height below 2.1 meters, violating building codes and creating severe visual compression. Constructing an unauthorized steel mezzanine is an illegal structure (違章建築) subject to mandatory demolition upon sale or report.
Storage dimensions for 8 to 15 ping spaces: trading vertical depth for walkway width
In an interior space with less than 12 ping of net area, every additional 60 cm deep floor-standing cabinet consumes about 0.36 ping of floor area. To keep a small home from feeling cramped, set cabinet depths by the actual thickness of the items stored and preserve a net walkway width of at least 75 to 80 cm:
- Entryway shoe cabinet and pegboard (depth 35 to 40 cm): Standard adult shoeboxes are about 32 to 35 cm long, and adjustable shelf holes allow spacing for boots or flats; if the entryway width is under 110 cm, switch to a slim 18 to 22 cm tilt-out shoe cabinet paired with vertical wall hooks for rain gear and helmets.
- Master bedroom wardrobe (depth 58 to 60 cm, sliding doors or curtain): Traditional swing doors require an extra 50 to 60 cm turning radius when opened, easily hitting a double bed frame; in a small bedroom, use sliding doors and build the wardrobe to the ceiling (integrating upper luggage and seasonal quilt storage) so no dust-collecting gap remains on top.
- Appliance tower and sideboard (depth 45 to 50 cm): Steam microwave ovens, rice cookers, and air fryers need heat dissipation space; leave at least 10 to 15 cm of net clearance above pull-out trays, and include ventilation cutouts and dedicated outlets in the back panel.
- Under-bed drawers or lift-up storage bed (height 30 to 40 cm): Use the roughly 1 ping footprint already occupied by a double bed to store suitcases (a 28-inch suitcase is about 30 to 33 cm thick) and seasonal appliances like dehumidifiers and fans, which saves far more budget than raising the entire room's floor and preserves net ceiling height.
Small-home plumbing and electrical priorities: open-kitchen and washer-dryer dedicated circuits
Most small apartments under 15 ping in Taipei and New Taipei lack natural gas piping and must use 220V dual-burner IH induction cooktops or ceramic stoves, while also fitting a dishwasher, microwave oven, and washer-dryer into the under-sink area or small balcony. If a light renovation only does carpentry and painting without pulling new dedicated circuits from the distribution panel, running the IH stove and microwave at the same time after move-in will trip the circuit breaker.
Under the Ministry of Economic Affairs Regulations for Installation of User Electrical Equipment (《用戶用電設備裝置規則》) on branch circuit ratings and conductor ampacity, have a licensed electrical contractor verify and install the following circuits before closing ceilings and installing system cabinets:
| Electrical zone and equipment | Recommended voltage and circuit breaker rating | Recommended copper wire gauge (PVC conduit) | Configuration notes |
|---|
| Dual-burner IH induction cooktop | 220V / 20A or 30A independent dedicated circuit (depending on model rated power of 3,000W to 3,500W) | 5.5mm² (20A to 30A) | Must run as a single dedicated circuit straight to the distribution panel, not daisy-chained with other outlets |
| Kitchen appliance cabinet (microwave oven, steam oven, rice cooker, air fryer) | 110V / 20A dedicated branch circuit (recommended to pull 2 separate circuits for outlets) | 5.5mm² | A single 110V / 15A circuit has a safe continuous load of about 1,320W (at 80%); two heating appliances running together must be on separate circuits |
| Washer-dryer or heat-pump dryer, under-sink dishwasher | 110V or 220V / 20A independent branch circuit (per model specification) | 5.5mm² | Balcony and under-sink outlets are damp environments; install an earth-leakage circuit breaker (ELCB, 漏電斷路器, 30mA sensitivity, tripping within 0.1 seconds) on the branch circuit |
| Inverter split air conditioners (living room and bedroom) | 220V / 20A independent dedicated circuit | 5.5mm² | Confirm condensate drain slope and refrigerant pipe beam-penetration positions; never drill new large holes through structural beams or columns yourself |
If you are unsure how many watts your existing panel's wire gauges can handle, calculate each branch load before speaking with your electrician using the site's wire ampacity and no-fuse breaker calculator.
Light renovation budget allocation and checklist for 10 to 15 ping apartments in Taipei and New Taipei
Assuming existing bathroom tiles and masonry partition walls are kept intact, a small-apartment light renovation budget in Taipei and New Taipei concentrates on three areas: "electrical circuit upgrades", "flooring and wall finishes", and "system storage cabinets and appliances". The table below summarizes the budget share and quote-review checkpoints for each trade; actual unit prices vary by board grade, hardware brand, and floor carrying conditions, and you can itemize and compare quotes beforehand with the renovation quotation generator tool.
| Engineering trade | Reference share of light renovation budget | Specification details that must be written clearly on the quote |
|---|
| 1. Common-area protection, partial demolition, and waste hauling | About 8% to 12% | Scope of elevator and lobby protection boards, whether waste hauling is priced per truckload or lump sum, and whether building cleaning deposit handling is included |
| 2. Dedicated circuit additions, switch/outlet relocation, and network cabling | About 15% to 22% | Number of new dedicated circuits, wire brand and gauge (such as Pacific or Walsin Lihwa 2.0mm / 5.5mm²), and whether switch boxes reserve a neutral wire and Cat.6 network cable |
| 3. Ceilings, curtain boxes, and AC pipe boxing (carpentry or exposed-pipe trim) | About 10% to 15% | Calcium silicate board brand and thickness (such as Nichiha or Nan Ya 6mm / 9mm), framing material (glulam or light steel frame), and whether interior renovation permit sign-off fees are included |
| 4. Flooring installation (SPC click-lock flooring or laminate wood flooring) | About 12% to 18% | Plank thickness, wear-layer rating, acoustic underlayment spec (must meet Building Technical Regulations impact sound reduction standards), transition strips, and door trimming fees |
| 5. System cabinetry and vertical storage (entryway, wardrobe, appliance cabinet) | About 30% to 40% | Board formaldehyde emission grade (such as F1 or E1 V313 moisture-resistant particleboard), hinge and slide brand (with soft-close), and whether pricing is per linear foot or expanded area |
| 6. Whole-unit latex painting and basic lighting fixture installation | About 8% to 12% | Number of putty and sanding coats (spot patching vs full-wall skim coat), paint brand and model, and whether downlight cutout and fixture installation labor are priced separately |
To evaluate how this renovation spending affects future resale or rental yield, also read the site's article on home renovation ROI and property value, avoiding overly complex fixed carpentry in a small unit that cannot be removed and is hard to maintain.
Frequently asked questions
If a 12-ping studio only installs system wardrobes and click-lock flooring, is an interior renovation permit required?
If you only lay glue-free click-lock flooring, paint walls, and assemble cabinets that do not alter partition walls and do not fall under Article 3 of the Building Interior Renovation Management Regulations ("fixed screens over 1.2 meters high or screens doubling as cabinets" and ceilings fixed to the structure), it generally falls outside permit review; however, if you build wooden ceilings in a multi-story building or use floor-to-ceiling cabinets as a fixed partition dividing two rooms, you must still have a licensed professional confirm and file as required.
My small apartment has a 3.4-meter ceiling height; can I build a wooden mezzanine above the bedroom as a sleeping loft?
Adding a mezzanine inside an existing building without approval from the building administration authority is an illegal structure. Furthermore, under Article 32 of the Building Design and Construction Chapter of the Building Technical Regulations, habitable room ceiling net height must not be less than 2.1 meters; any storage platform or loft bed not counted in floor area must strictly comply with Taipei and New Taipei building administration criteria on height, area ratio, and non-habitable use.
Why does the circuit breaker trip frequently after replacing a small apartment's stove with an IH induction cooktop?
A dual-burner IH induction cooktop can draw 3,000W to 3,500W at maximum total power (about 14A to 16A on 220V). If it reuses old wiring from a range hood or a standard 110V outlet, or shares a branch circuit with a microwave or oven, the current will exceed the rating of the no-fuse breaker (NFB, 無熔絲開關) and trip for protection. The proper solution is to pull a dedicated 220V, 5.5mm² copper wire circuit directly from the distribution panel for the IH cooktop.
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