Beijing Shengmeng Technology || Set standards, strengthen materials · Different regions respond to the "good house" policy, material quality is the key!

·上海市

Shanghai's 'Ultra-Low Energy Consumption Building Design Standard (Public Buildings)' (DG/TJ08-2466-2025) and 'Ultra-Low Energy Consumption Building Design Standard (Residential Buildings)' (DG/TJ08-2467-2025) will be implemented on October 1, 2025. Based on regional and climatic characteristics, they aim to reduce building energy consumption and promote low-carbon transformation. Core requirements include establishing a rational energy consumption indicator system (e.g., public buildings must meet 'main energy saving rate ≥ 15% + comprehensive energy saving rate ≥ 40%' and residential buildings must meet annual heating heat consumption ≤ 8kWh/(m²・a)'), emphasizing climate-responsive design (controlling window-to-wall ratios and optimizing natural lighting and ventilation), establishing thermal indicators for building envelopes, optimizing building airtightness, and promoting the use of renewable energy (utilization rate ≥ 10% or by height). These standards cover multiple systems, including building design, heating and ventilation, electrical systems, and domestic hot water.

Qinghai Province

Qinghai Province

The 'Qinghai Province Residential Design Code' clarifies the core standards for 'good houses' in Qinghai: residential floor height should not be less than 3.00 meters, and the convenience of lighting, ventilation and installation of fresh air systems should be improved; residential buildings with three floors or above (including shops on the ground floor, etc.) or the highest entrance floor with a height of more than 6 meters must be equipped with elevators, which is stricter than the national standard and adapted to the high altitude characteristics; the sound insulation performance of walls and floors must be strengthened, and the weighted standardized impact sound pressure level of bedroom and living room floors must not exceed 65dB; systematic aging-friendly and barrier-free design should be implemented to meet the needs of groups such as the elderly.

Jiangsu Province

The Jiangsu Province Residential Project Quality Improvement Action Plan focuses on enhancing the physical quality, performance, and living experience of residential projects. Its goal is to build safe, comfortable, green, and intelligent 'good homes,' fostering a new framework for residential project quality governance characterized by 'effective government, efficient market, responsible enterprises, and orderly society.' The plan will be implemented in three phases (mobilization and deployment from June to July 2025, organizational implementation from August 2025 to November 2027, and review and improvement after December 2027). By strengthening four systems (quality responsibility, support, control, and supervision), promoting nine actions (standard guidance, design optimization, etc.), and implementing five governance measures (concrete engineering and quality issues), the plan will comprehensively promote improvements in residential quality.

The key points of the regulations are as follows:

1. Residential building floor heights are raised to 'no less than 3.00 meters.'

4.1.2-1 Floor heights should not be less than 3.00 meters.

2. Clarification of clear height dimensions for new residential buildings.

4.1.2-2 The indoor clear height of bedrooms and living rooms should not be less than 2.60 meters, and the partial clear height should not be less than 2.20 meters. The area with a partial clear height below 2.60 meters should not exceed one-third of the indoor usable area.

3. Each residence is required to have a room that meets the sunlight standards.

4. Elevators must be installed in residential buildings of four floors or more.

4.2.4 Elevator installation in new residential buildings must comply with the following regulations:

1. For residential buildings with the highest entrance floor being four or more floors, or where the highest entrance floor exceeds 9 meters above the outdoor design ground level, each residential unit must be equipped with at least one elevator.

2. For residential buildings with the highest entrance floor being 12 stories or higher, or with the highest entrance floor exceeding 33 meters above the exterior ground, each residential unit shall be equipped with at least two elevators.

5. Raising the height of railings in areas with access to the open air, such as balconies

4.1.15-1 The clear height of balcony railings shall not be less than 1.20 meters.

6. Installation of Bay Window Railings (New Requirements Address Issues with Opening Windows)

4.1.16 When the clear height of the window sill of an exterior window facing the open air is less than 0.90 meters from the indoor floor, a protective device shall be installed. The height of the protective device shall be measured from the indoor floor or step-through surface and shall not be less than 0.90 meters. When the bay window sill height is less than or equal to 0.45 meters, the height of the protective device shall be measured from the window sill surface and shall not be less than 0.90 meters. When the bay window sill height is greater than 0.45 meters, the height of the protective device shall be measured from the window sill surface and shall not be less than 0.60 meters. Protective devices for bay windows shall be installed close to the exterior window.

7. New Requirements for External Window Installation

4.1.17 When the ratio of the clear width to clear depth of a residential building recess is less than 1:3 and the clear width is less than 1.20m, external windows in bedrooms and living rooms should not be located within the recess.

8. Requirement for Air Conditioner Outdoor Units to be Installed on a Dedicated Platform

4.2.12 When a residential building uses split-type air conditioners, the location and installation of the outdoor unit shall comply with the following regulations:

1. A dedicated accessible platform or reserved space shall be provided to facilitate installation and maintenance of the outdoor unit. The connection between the dedicated platform and the main building structure shall be structurally designed and designed to have a service life equal to that of the main structure.

2. The outdoor unit should be located to ensure unobstructed ventilation and should not be located in poorly ventilated areas such as building atriums. It should not adversely affect outdoor personnel or adjacent windows. If a grille or wall is installed around the outdoor unit, it should not impede effective heat dissipation by the air conditioner.

9. Clarification of Bathroom Location

4.1.7 Bathrooms should not be located directly above other residents' bedrooms, living rooms, kitchens, or dining rooms.

10. Clarify Car Dimensions

4.2.4-3 Residential units equipped with elevators must have at least one elevator that meets the following dimensional requirements: The clear width of the car door shall not be less than 0.90m. For wide cars, the long dimension shall not be less than 1.60m, and the short dimension shall not be less than 1.50m. For deep cars, the width shall not be less than 1.10m, and the depth shall not be less than 2.10m.

11. Increased Clear Width for Doors and Bathrooms

4.1.14 The clear width of doors in newly built residential buildings shall not be less than 0.90m, and for renovations of existing residential buildings, the clear width shall not be less than 0.80m. The clear width of bedroom doors shall not be less than 0.80m, and the clear width of kitchen and bathroom doors shall not be less than 0.70m. Provision shall be made for barrier-free accessibility.

12. Improved sound insulation performance of walls and floors

5.0.4 The thickness of reinforced concrete solid floor slabs in new residential buildings shall not be less than 100mm.

6.1.2 The sound insulation performance of walls and floors between bedrooms and living rooms and adjacent rooms in residential buildings shall comply with the following requirements:

13. Improved requirements for home distribution boxes

7.4.3-3 Power cables entering and exiting home distribution boxes shall use copper conductors, and the cross-sectional area of the power cables shall not be less than 10mm².

14. Public mobile communication signal coverage is required to extend to public spaces and elevator cabins.

7.5.2 Public mobile communication signal coverage shall extend to public spaces and elevator cabins in residential buildings.