The NU Projects 12-Stage Design and Build Process
- Aug 31, 2022
- 3 min read
Updated: 4 days ago
A premium residential project is easier to control when every stage has a clear purpose, output and decision point. The NU Projects 12-stage process connects architecture, interiors, cost planning, technical design, construction and aftercare through one accountable team.
The exact programme changes with the property and approvals, but the sequence below shows how a substantial London renovation moves from an initial conversation to a completed home.

Stage 1: Consultation and brief
We establish the property, priorities, lifestyle requirements, desired completion date and investment framework. The aim is to understand the outcome before proposing a route.
Stage 2: Survey and due diligence
The team identifies the measured, structural, drainage, services, heritage and other information required. Constraints such as leases, planning, party walls and access are reviewed.
Stage 3: Feasibility and early cost range
Initial options are tested against planning, buildability, programme and budget. The NU Build Cost Calculator can provide a benchmark, followed by project-specific cost advice.
Stage 4: Concept design
Architecture and interior direction develop around the brief. Layouts, massing, light, circulation, materials and the relationship between old and new are explored.
Stage 5: Planning and statutory strategy
The appropriate planning, listed-building, freeholder, building-control, party-wall and specialist-consultant routes are defined and programmed.
Stage 6: Developed design and cost plan
The chosen scheme is coordinated in greater detail. Structure, MEP, key specifications and cost are reviewed together so design decisions remain commercially informed.
Stage 7: Technical design
The construction information resolves structure, waterproofing, drainage, fire safety, thermal performance, building services, lighting, kitchens, bathrooms, joinery and important interfaces.
Stage 8: Procurement and preconstruction
The scope, programme, contract, logistics and specialist packages are prepared. Long-lead items, samples, responsibilities and decision dates are recorded before mobilisation.
Stage 9: Site setup and enabling works
Protection, welfare, access, temporary services, surveys and safe enabling work establish the site. Existing conditions are checked against the design before irreversible work progresses.
Stage 10: Construction and quality control
The team manages programme, cost, safety, specialist trades, inspections and reporting. Concealed work, samples, setting out, waterproofing, services and finishes are checked through the build.
Stage 11: Commissioning, completion and handover
Mechanical, electrical, lighting, controls, alarms and specialist systems are tested. Snagging, certification, operating information and demonstrations are completed before handover.
Stage 12: Aftercare
The defects process and ongoing support protect the home after occupation. NU Aftercare can coordinate planned maintenance, MEP servicing, reactive repairs and compliance checks.
See the full NU design-and-build process and construction project-management service for more detail.
The decision gates that protect the project
Do not commit to a concept before testing feasibility and cost
Do not start construction with unresolved technical interfaces
Do not procure finishes before dimensions and services are coordinated
Do not allow variations to proceed without written scope, cost and programme approval
Do not treat practical completion as the end of commissioning and aftercare
See the Tite Street Chelsea townhouse project for a completed example of NU Projects’ residential delivery.
Frequently asked questions
Is every project exactly 12 stages?
The framework is consistent, but activities can overlap or require additional approvals depending on the property and scope.
When does the construction price become more certain?
As surveys, technical design, specifications and specialist quotations replace assumptions. Cost certainty develops; it is not created by an early headline number.
Who is the client's main contact?
The reporting structure is agreed for the project, with named responsibility for design, commercial management and site delivery.
Start at Stage 1
Book a private consultation with NU Projects to discuss your home, priorities and the right route forward.

































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