Starting a new build project in London is an exciting journey – whether you’re constructing a bespoke home, developing a residential complex, or creating commercial space. However, the process involves far more than hiring a contractor and breaking ground. From planning permission to design, budgeting, sustainability, and regulatory compliance, every stage demands careful preparation.
At BBS Design Build Transform, we’ve guided countless clients through the complexities of new builds in London. This blog highlights the key considerations you must explore before starting your project — so you’re informed, confident, and set up for success.
1. Understand the London Property & Planning Landscape
London’s property market is diverse and dynamic, but it’s also regulated by strict planning and building control frameworks set by local boroughs.
Planning Permission vs. Permitted Development Rights
- Planning Permission is required when your build alters use, scale, appearance, or layout beyond specific limits.
- Permitted Development (PD) Rights allow certain types of development without full planning applications — but these rights vary by location, especially in conservation areas.
Failing to secure the right consent can delay your project and lead to enforcement action. Early consultation with planning officers and architects is crucial.
Local Development Plans
Each London borough has a Local Plan that influences what type of construction is feasible. These documents cover:
- Housing targets
- Design standards
- Environmental priorities
By understanding these plans early on, you can align your project with planning expectations.
2. Site Selection & Due Diligence
Choosing the right site can make or break your new build.
Key Factors to Assess
- Topography – Sloping land may require additional excavation and drainage work.
- Soil Conditions – Poor soil might need specialist foundations.
- Access – Roads, utilities, and connectivity determine logistics and costs.
- Contamination Risks – Old industrial sites may need remediation.
- Heritage Status – Listed buildings or archaeology can restrict design options.
A professional site survey (including geotechnical, ecological, and services surveys) gives you a detailed risk profile and cost implications.
3. Establish a Realistic Budget
Your budget is the backbone of the project — and it should extend well beyond construction costs.
Typical Budget Breakdown
- Land acquisition
- Professional fees
(architects, engineers, planning consultants) - Planning and statutory fees
- Construction cost
- Contingency (5–10% minimum)
Every site has surprises! - Fit-out and finishes
- Landscaping & external works
- Utilities & connections
- Taxes and finance costs
London builds often carry a premium for labour, logistics, and materials compared to regional projects.
Tip: Always build contingency into your budget — ideally 10% or more for new builds.
4. Design – Beyond Aesthetics
Great design marries beauty with function.
Early Architectural Consultation
Investing in design at the outset helps with:
- Planning approval
- Cost control
- Site optimisation
- Futureproofing (e.g., adaptability to changing needs)
Sustainable & Future-Ready Design
London’s carbon targets and building regulations increasingly emphasise sustainability. Consider:
- High-efficiency insulation
- Renewable energy systems
- Water recycling
- Passive heating and cooling
These add value to the property and reduce long-term operating costs.
5. Appoint the Right Team
A successful build requires a cohesive team of experts:
- Architect – Design + planning navigation
- Structural engineer – Safety and integrity
- Project manager – Coordinate deliveries & schedules
- QS (Quantity Surveyor) – Cost forecasting
- Principal Contractor/Main Builder – On-site delivery
- Specialist subcontractors – For electrical, plumbing, roofing, etc.
We offer integrated project delivery that minimises risk and simplifies communication.
6. Regulatory Compliance & Building Control
Construction in London must meet strict building regulations to ensure safety, energy efficiency, and environmental performance.
What Building Control Covers
- Structural stability
- Fire safety
- Thermal performance
- Sound insulation
- Drainage & plumbing
Engage building control early on to reduce redesigns and delays.
7. Sustainability & Net Zero Targets
The UK government and local councils are pushing for net zero carbon buildings.
Considerations for Sustainability
- Energy-efficient materials
- Solar/PV installations
- Heat pumps & eco-friendly heating
- Green roofs and rainwater harvesting
- EV charging infrastructure
Sustainable builds are not only better for the planet — they’re increasingly expected by buyers and tenants in London.
8. Utilities & Infrastructure Coordination
Securing utilities might seem trivial — but without early planning, it can be one of the biggest causes of delay.
- Water & sewer connections
- Gas (if needed)
- Electrical capacity / grid connection
- Broadband & telecoms
- Drainage & attenuation if space is restricted
Work with suppliers and designers so these services are planned in your programme.
9. Health, Safety & Risk Management
Construction sites must follow legal health and safety protocols.
Key Requirements
- Site Health & Safety Plan
- Risk assessments & method statements (RAMS)
- Regular tool-box talks
- PPE for all workers
- Compliance with CDM Regulations
A professional construction partner manages these automatically and protects you from liabilities.
10. Programme & Timeline Planning
Time is money — but London builds often face unique timing challenges:
- Supply chain fluctuations
- Permit and inspection lead times
- Seasonal weather impacts
- Neighbourhood restrictions
A realistic schedule should include:
- Pre-construction planning
- Permitting
- Construction phases
- Inspections
- Handover
Contingency time (typically 10–15%) is essential for unforeseen events.
11. Neighbourhood & Community Considerations
Building in London means working alongside residents, businesses, and officials.
What to Prepare For
- Noise and dust control
- Traffic management (for deliveries)
- Public safety fencing
- Communication with neighbours
A good contractor proactively manages these factors — protecting your reputation and preventing complaints.
12. Quality Assurance & Inspections
Quality control shouldn’t wait until the end of the build.
- Regular site inspections
- Third-party testing (e.g., thermal imaging, air tightness)
- Snagging lists
- Final compliance certificates
This ensures the finished property meets standards and prevents costly defects post-handover.
13. Financing & Cash Flow Management
Whether you’re self-funding or using development finance, managing cash flow matters.
- Payment schedules should align with project milestones to avoid delays
- Ensure finance structures allow flexibility if timelines shift
Speak with your lender early to understand their draw-down process.
14. After-Build Considerations
Your responsibilities don’t end at completion.
What Comes Next
- Building Insurance
- Warranty & guarantees
- Energy performance certification (EPC)
- Property marketing or tenancy setup
- Ongoing facility management
A handover package with manuals and operation documents makes property ownership simpler.
15. Why Partner with a Professional London Builder
New builds are complex — but the right construction partner simplifies the journey.
- Full new builds planning & execution
- Design & architectural coordination
- Budgeting & forecasting
- Regulatory compliance
- Quality workmanship
- Transparent communication
Our experience across London boroughs means fewer delays and predictable outcomes.
Whether you’re a homeowner, investor, or developer, we turn plans into homes that last.
