Structural Engineering Calculations, drawings and building control for your project
Looking for a structural engineer in London? Fixed-fee structural calculations, detailed construction drawings and full building control support, all managed in-house by our chartered engineers.
Chartered structural engineers you can rely on
A structural engineer makes sure every load-bearing element of your home. Beams, columns, foundations, lintels and floors, can safely carry the forces placed on it. In London, where Victorian terraces sit alongside modern conversions and every borough has its own planning constraints, getting the structural design right is essential.
A chartered structural engineer produces the calculations and drawings that prove your design is safe. These documents are required by Building Control before any structural work can begin. They guide your builder on exactly what materials, sizes and connections to use on site.
Our Services
Everything you need, managed by one practice
Structural Calculations
Beam, load and foundation calculations to Eurocodes, formatted for Building Control submission.
Structural Drawings
Detailed construction drawings showing beam positions, connection details and reinforcement schedules.
Steel Beam / RSJ Design
Correct beam sizing, padstone specifications and bearing details for load-bearing wall removals.
Wall Removal Engineering
Complete structural design for removing load-bearing walls, RSJ sizing and temporary propping details.
Building Control Support
We submit to Building Control and handle all technical queries until approval.
Builder Clarifications
On-call support for your builders during construction, answering site queries and reviewing photos.
Understanding structural engineering in London
A structural engineer makes sure every load-bearing element of your home. Beams, columns, foundations, lintels and floors, can safely carry the forces placed on it. In London, where Victorian terraces sit alongside modern conversions and every borough has its own planning constraints, getting the structural design right is essential.
A chartered structural engineer produces the calculations and drawings that prove your design is safe. These documents are required by Building Control before any structural work can begin. They guide your builder on exactly what materials, sizes and connections to use on site.
Whether you need a structural engineer in London or surrounding areas, for a house extension, loft conversion, wall removal or new build, Salstan provides both architectural and structural services under one roof. Saving time, reducing errors and keeping your project on track.
Why choose Salstan for structural engineering?
- Over 1,000 projects completed across London
- In-house architects, engineers and builders
- Fixed-fee pricing with no hidden costs
- 130+ five-star Google reviews from clients
How we deliver structural engineering at Salstan
We submit to Building Control and handle all technical queries until approval, included in every package with us.
On-call support for your builders during construction, answering site queries, reviewing photos and issuing clarification sketches.
Our process explained in six easy steps
Building Control & Approved Document A
Any structural alteration to your home including wall removal, extension, loft conversion or new build must comply with Approved Document A (Structure) of the Building Regulations. This is the legal framework that ensures buildings are structurally safe.
Your local Building Control body (either the council or an approved inspector) reviews the structural calculations and drawings before issuing approval. Without this approval, the work is not legally signed off and can cause problems when you sell your property.
At Salstan, your chartered structural engineer in London handles everything. Building Control submission is included in every structural engineering package. We prepare the application, submit the documents and handle all technical queries from the Building Control officer.
Read more about building regulations and the approval process on our dedicated page.
A1 — Loading
The structure must safely carry all dead loads, imposed loads and wind loads without excessive deflection.
A2 — Ground Movement
Foundations must be designed to resist settlement, heave and the effects of nearby trees or drains.
A3 — Disproportionate Collapse
The structure must not be vulnerable to collapse beyond the area of initial damage, critical for extensions and conversions.
How We Work
OUR PROCESS
01
Initial Review
Send us your plans or describe your project. We confirm scope and provide a fixed-fee quote, typically within 24 hours. Get in touch.
02
Site Information
We review existing drawings and, where needed, arrange a site visit to assess the structure and take measurements.
03
Structural Design
Your dedicated structural engineer in London designs the solution; beam sizes, foundations, connections — coordinated with your architectural plans.
04
Calculations & Drawings
We produce the full calculation package and detailed construction drawings, peer-reviewed before issue.
05
Building Control
We submit directly to Building Control and handle all technical queries until full approval is granted.
06
Construction Support
Approved drawings go to your builder. We remain available for site queries and clarifications throughout construction.
Why Choose Salstan?
THE SALSTAN DIFFERENCE
Architecture & Engineering Under One Roof
Architectural plans and structural calculations produced by the same practice; designed to reduce coordination delays and drawing conflicts.
Building Control Managed
We prepare the Building Control submission and handle technical queries on your behalf; included as standard in every structural package.
Construction-Ready Drawings
Detailed drawings with dimensions, material specifications and connection details; giving your builder one clear, complete set of information.
Practical Design Approach
We design for buildability; specifying materials and methods that suit your budget, property type and site conditions.
London Residential Specialists
Victorian terraces, 1930s semis, post-war flats and modern conversions; we work with the housing stock found across every London borough.
Fixed-Fee Pricing
Transparent pricing quoted upfront. No hourly rates, no surprise invoices. See our full pricing guide for details.
Structural Engineer Near Me
Searching for a structural engineer near me in London? Salstan operates from two offices covering the entire Greater London area and Home Counties. Whether you are in Richmond, Wandsworth, Barnet, Fulham, Wimbledon or anywhere else in London or outside of London; we can provide a local structural engineering service.
Our structural engineers regularly work across West London (Ealing, Hounslow, Kingston, Putney), South London (Sutton, Croydon, Bromley, Lewisham), North London (Camden, Islington, Haringey, Enfield), East London (Hackney, Tower Hamlets, Newham) and Central London (Westminster, Kensington, Lambeth).
We also cover the Home Counties including Surrey, Hertfordshire, Essex, Buckinghamshire and Kent. Contact us for a free quote; we typically respond within 24 hours regardless of your location.
Park Royal Office (NW10)
2 Lakeside Dr, Park Royal, London NW10 7FQ — covering North, West and Central London
Teddington Office (TW11)
Causeway House, 13 The Causeway, Teddington TW11 0JR — covering South, South-West London and Surrey
Areas We Cover
With offices in Park Royal (NW10) and Teddington (TW11), our structural engineers cover every London borough and the Home Counties.
East London
- Tower Hamlets
- Hackney
- Newham
- Redbridge
- Barking
Home Counties
- Surrey
- Hertfordshire
- Essex
- Buckinghamshire
- Kent
Also Covering
- Chiswick
- Twickenham
- Haringey
- Enfield
- Southwark
Frequently Asked Questions
Structural engineer fees in London typically start from £350 + VAT for a straightforward wall removal or RSJ beam design. Loft conversions usually start from £800 + VAT, while full extension packages start from £600 + VAT. Prices depend on project complexity and whether you have Architectural Floor Plans or not. Salstan provides fixed-fee quotes; request yours free within 24 hours. See our full pricing guide for details.
Yes, if the wall is load-bearing. A structural engineer calculates the correct steel beam (RSJ) size, specifies padstones and bearing details, and produces drawings for Building Control approval. This is a legal requirement under Building Regulations. Even if you are unsure whether a wall is load-bearing, it is safest to get a professional assessment first. Get in touch!
An RSJ (rolled steel joist) is the steel beam commonly used to support the structure above a removed load-bearing wall. The term is often used interchangeably with “steel beam” or “I-beam” in residential projects. Your structural engineer calculates the correct RSJ size based on the loads it must carry, and specifies the padstones and bearings at each end.
Most residential structural calculations are completed within 5–7 working days. Simpler jobs like a single wall removal typically take 3–5 days. Larger projects such as basement conversions may take 10–15 working days. We confirm the exact timeline when we provide your quote.
Yes. Every loft conversion requires structural engineering — steel beams for the new floor, floor joist strengthening, staircase opening design, and for dormers, the dormer frame and any hip-to-gable steelwork. These are mandatory for Building Regulations approval.
Look for a structural engineer who holds chartered status (CEng) and is a member of a recognised professional body such as the Institution of Structural Engineers (IStructE) or the Institution of Civil Engineers (ICE). These memberships indicate the engineer meets national competence standards. Always check that the practice carries professional indemnity insurance.
When searching for a structural engineer near you, check for IStructE or ICE membership, read Google reviews, and ask whether they have experience with your specific project type and local authority. Salstan has offices in Park Royal (NW10) and Teddington (TW11), covering every London borough and the Home Counties. Contact us for a free quote.
Yes. Building Control submission can be included in all Salstan structural engineering packages. We prepare the full submission, liaise with the Building Control officer, and handle all technical queries until approval is granted.
Yes. As you may know we have our own in-house Architects, Architectural Designers and Technicians. We also work alongside independent architects, architectural designers and directly with homeowners. If you do not have an architect, Salstan provides both architectural and structural services under one roof; saving time and reducing coordination issues between separate practices.
What our clients say about us
Structural Engineering Pricing
In-house chartered structural engineers. Clear pricing with no hidden fees.
- Full structural calculations
- Structural design drawings
- By chartered engineers
- Rear, kitchen, wraparound
- Full structural calculations
- Structural design drawings
- By chartered engineers
- Complex structural solutions
- Full structural calculations
- Structural design drawings
- By chartered engineers
- Steel beam design included
Final pricing depends on architectural design complexity. New builds and basements quoted individually. View full pricing details
Let's Discuss Your Project
Share your project details and our team will review the scope, provide clear guidance, and come back with practical next steps — no obligation, just honest advice.
Tell Us What You're Planning
Extension, loft, new build — share your ideas using the form
We Review Your Project
Our architects assess your property and project requirements
Receive Clear Next Steps
Get a fixed-fee quote and a practical plan to move forward
Fill in what you can — we'll follow up with anything else we need.
Accreditations & Education
Trusted Experience Across Architecture,
Engineering & Construction
Our team’s background combines architectural design, structural engineering and construction delivery.
Civil Engineering
Institution of Civil Engineers
Structural Engineering
The Institution of Structural Engineers
City University London
Academic excellence in the built environment
Loughborough University
Academic excellence in design & innovation
UCL
Academic excellence in architecture & engineering
Civil Engineering
Institution of Civil Engineers
Structural Engineering
The Institution of Structural Engineers
City University London
Academic excellence in the built environment
Loughborough University
Academic excellence in design & innovation
UCL
Academic excellence in architecture & engineering
