Start your project S & M Solutions Ltd | Design & Build Contractors 
Design & Build Contractors Delivering Considered London Homes
Architecture and Engineering
Design-led planning, technical coordination, and engineering support for residential projects across London.
At S & M Solutions Ltd, we deliver carefully planned residential projects across London through a fully integrated in-house design and build approach.
From early feasibility, planning and structural coordination through to technical design and construction delivery, every stage is managed by one coordinated team under one roof, giving homeowners clarity, continuity and confidence from concept to completion.
Whether undertaking a loft conversion, extension, renovation, or bespoke new build, our design-led process ensures planning, engineering and buildability are aligned from the outset, allowing projects to progress into construction with greater certainty and fewer surprises.
Our Pre-Construction Journey
1. Feasibility & Project Brief
We begin with an early-stage consultation to assess feasibility, understand your objectives, and identify key planning, structural and budget considerations before progressing further.
2. Design Development & Planning Drawings
Concept layouts and planning drawings are prepared to shape the design direction and support local authority submissions, with optional visualisation where required.
3. Planning Submission & Coordination
Preparation and submission of planning applications, including coordination with the relevant local planning authority throughout the approval process.
4. Technical Design, Structural Coordination & Cost Alignment
Intrusive surveys, structural engineering input and construction-ready technical drawings are developed to verify existing conditions and ensure buildable solutions before construction pricing is finalised. At this stage, we also align the technical design with realistic construction costs to help reduce uncertainty before works begin.
5. Building Regulations & Technical Approval
Preparation of technical drawings, details and submissions required for Building Regulations approval, supporting a smooth transition into the construction phase.
6. Build Preparation, Cost Planning & Project Mobilisation
Final build-stage preparation, scope refinement and cost planning are completed to ensure the project is fully ready for construction delivery, helping homeowners move forward with greater clarity on programme and budget.
Why Choose Our Team?
Over 22 Years of Experience
Extensive hands-on experience delivering complex residential projects across London, informed by both design and construction expertise.
Integrated Architectural & Engineering Approach
Design, technical coordination, and delivery aligned from the outset to ensure clarity, buildability, and well-resolved outcomes.
Strong Regulatory & Planning Knowledge
A thorough understanding of local planning policies, building regulations, and approval processes across London boroughs.
London-Based, Design-Led Team
Deep familiarity with London’s housing stock, site constraints, and construction challenges — from period homes to contemporary schemes.
Tailored, Client-Focused Delivery
Every project is carefully structured around the client’s brief, priorities, and long-term objectives, with clear communication at every stage.
Much of our engineering work involves the practical realities of London's period housing stock — removed chimney breasts, shallow foundations, and structural loads that need proper calculation before any wall comes down. We coordinate structural engineering directly with our own build team, covering steelwork specification, party wall matters with neighbouring properties, and Building Regulations Part A structural compliance, so technical decisions are made with buildability in mind from the outset. We work across Central, South East and East London, from conservation area properties — where we have particular depth in areas like Greenwich and Blackheath — through to Grade II listed buildings, so whatever constraints a property carries, they're identified and planned for early, not discovered after planning submission.
Frequently Asked Questions – Architecture and Engineering
Do you provide structural engineering as part of the design process?
Yes. Structural engineering is coordinated directly within our in-house process, alongside architectural design and planning. This means structural calculations, steelwork specification, and buildability are considered from the early design stages, not added on afterwards.
Is architecture and engineering available as a standalone service?
No. Our design and engineering work is delivered as an integrated part of our full design and build service, not as a standalone offering. This keeps design, structural coordination and construction under one team, so the people designing your project are the same people who build it.
Can you handle projects in conservation areas and listed buildings?
Yes — this is core to what we do. A large proportion of our work takes place within conservation areas, particularly across Greenwich and Blackheath, where we routinely manage the additional planning constraints these designations bring. Our experience also extends to Grade II listed properties, including a full back-to-brick renovation and extension of a Grade II listed house in Stepney Green, delivered through listed building consent and the heightened standards that come with it.
Will I need a party wall agreement for my project?
If your project involves work to a shared wall or building close to a neighbouring property, a party wall agreement is often required. We identify whether this applies early and manage the process as part of our pre-construction service.
Do you provide drawings for Building Regulations approval as well as planning?
Yes. We prepare the technical drawings and details required for both planning permission and Building Regulations approval, so the two processes stay aligned rather than being handled separately.
Get in Touch
Work with a team that handles planning, structural engineering and building regulations in-house, and takes your project from first drawings through to completed build under one contract.
Areas We Cover
Fully managed design & build projects, from concept through to completion, across Central and South-East London, including Chelsea, Fulham, Kensington, Westminster, Dulwich, Greenwich, Maze Hill and Blackheath.
