About
A planning studio advancing development while preserving the distinctive essence of each place.
NIIN International Consultant JSC was established in Hanoi in 2024. Many projects led, coordinated and contributed to by the NIIN team have been approved and built.
We see every planning project as a one-of-a-kind work tailored to its place, decoding topographic, infrastructure and social challenges through forward-looking spatial solutions. Success is not measured by completed area, but by the quality of life of the people who live there for decades.
- 102+
- projects involved
- 12+
- years of practice
- 30/34
- provinces & cities (after the 2025 merger)
- 1–15.600
- ha · project scale range
Awards
- Gold Award · VUPA 20251:2,000 Zoning Plan, Southern Coastal Tourism Area, Ninh Thuận – City of Sun and Wind · 529.2 haView project →
- Silver Award · VUPA 20251:500 Detailed Plan adjustment, Pột Nọi Urban Area, Sơn La – Giao Duyên City · 16.04 haView project →
- Silver Award · VUPA 20251:500 Detailed Plan, Coastal Quảng Ngãi Eco-Urban Area · 94 haView project →
- First Prize · 2012Landscape Design Competition for Heritage Value Enhancement (CEO's personal award)
NIIN-DNA method: reading the place in 4 layers
We read the place in four layers to understand the site and the client before drawing begins, so NIIN works as an advisory partner first, not simply a design consultant.
- 01
Physical setting
Topography · hydrology · microclimate · natural-hazard risk
Deliverable: Analysis map and development constraint thresholds
- 02
Culture & people
Communities · livelihoods · festivals · local materials and vernacular architecture
Deliverable: Identity profile and design principles
- 03
Legal framework
Higher-level plans · forest and rice land · corridors · heritage
Deliverable: Legal-constraint map and approval roadmap
- 04
Viability
Operating model · phasing · cash flow · operational capacity
Deliverable: Product-mix and phasing recommendations
Three service packages
Package 1
Concept kick-off
- Place Reading dossier
- Master planning concept
- Urban design illustrations
- Market and financial study
- Investment policy proposal dossier
- 1 revision round
Package 2
Full legal package
- Everything in Package 1
- Planning task
- 1:500 Detailed Planning dossier
- GIS dossier
- 3D visualisations, project film
- 2–3 presentations to authorities
- 2–3 revision rounds depending on the project
Package 3
Full partnership
- Everything in Package 2
- Landscape direction tailored to each sub-area
- Typical architectural prototypes (with 4+1 Studio)
- Project film with voice-over
- Design authorship supervision
- Ongoing management support
Leadership
Meet the team →
ThS. KTS. Trịnh Diệu Ni
Founder & CEO · Urban Planning Architect
Practising since 2014, Trịnh Diệu Ni is an urban planning architect with more than 12 years of experience in spatial planning and landscape-oriented development, focused on human-centred and nature-responsive urban futures. She has led over 100 projects across Vietnam with domestic and international partners.
“Better places are shaped by people who truly care.”
- 102+
- projects led or contributed to
- 12+
- years of practice
- 12+
- international consultants worked with
Career & education
- 2024 – nay
- CEO & Founder, NIIN International Consultant JSC
- 2022 – 2024
- Project Manager, Planning Architect – Hanoi Urban Architecture Development JSC
- 2021 – 2022
- Planning & Landscape Architect – Viet Nam Ego Landscape Architecture JSC
- 2014 – 2021
- Planning Architect, Team Leader – Hanoi Urban Architecture Development JSC
- 2019
- Master of Urban Management – Hanoi University of Civil Engineering
- 2009 – 2014
- Urban Planning Architect – Hanoi Architectural University
- Chứng chỉ
- Class II Construction Planning Practice Certificate
Our team
Project and discipline leads in planning, landscape, infrastructure, 3D and economics & finance.
Built work
Selected approved projects that have been built.
| Project | Location | Scale |
|---|---|---|
| Elite Hill New Urban AreaBuilt | Sơn La | 16.4 ha |
| Thành Trung Cầu New Urban AreaUnder construction | Bắc Giang | 10.6 ha |
| Hồng Hạc Xuân Lâm New Urban AreaUnder construction | Bắc Ninh | 200 ha |
| Eco City Premia Eco-Urban AreaBuilt, on sale | Đắk Lắk | 50 ha |
| Tân Phú Hưng Urban Residential AreaBuilt, on sale | Hải Dương | 80.6 ha |
| Hạ Long Premier VillageBuilt, on sale | Quảng Ninh | 40 ha |
| Solasta Nite Oasis Night-Time Economy DistrictUnder construction, on sale | Bắc Giang | 5 ha |
Consultants and experts we have worked with
- DPA Singapore
- Nippon Koei Vietnam
- BDP
- Golfplan
- ATEK
- SJ
- Philip Kozely
About our project list
NIIN was founded in 2024. Projects before 2024 are the experience of NIIN's team while working at other consultancies (see the career history above). Each project states the team's role and collaborating firms, so you can judge our capability accurately.
Want the full profile before we talk?
Download the 16-page summary now, or get the full 81-page profile by email.