Britain's leading architectural and planning service provider, fusing cutting-edge technology and human expertise to produce cost-effective planning services, architectural design and building control details.
Planning Permission Made Simple
Expert Planning Services for Extensions, Loft Conversions & Renovations in London.
We specialise in securing planning permission for home extensions, loft conversions, basement builds, and full property renovations. Whether your project is straightforward or complex, we handle every step of the planning process—so you don’t have to.
We provide tailored structural engineering solutions for domestic clients, specialising in rear and side extensions, loft conversions, basement conversions, knock-throughs, chimney breast removals, underground drainage, and Thames Water approvals. We are experts in co-ordinated projects that generally require steelwork for large spans, temporary work design, and complex bridge-over agreements.
Our engineers create a comprehensive structural design package, including technical drawings, specifications, and design calculations, ready for Building Control approval.
We guide you through the entire process, coordinating with planners and other consultants to deliver the most cost-effective, safe, and practical structural solutions for your project.
Structural Survey and Report - GSI and SSI
Structural Inspection and Condition Reports
For homeowners and commercial clients, BLE provides professional reports for concerns such as wall cracks, subsidence, or foundation movement.
Each report includes:
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A detailed record of what was inspected and observed
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An assessment of whether a problem exists
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Recommendations for remedial work or further investigations, if necessary
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Optional budget estimates for repairs or investigations, on request
Our reports give you the clarity and confidence you need to make informed decisions about your property.
Party Wall Services
At BLE, our Party Wall services are designed to ensure your project complies with legal requirements while protecting your property and your neighbour’s.
Our Party Wall Award typically includes a prior Schedule of Condition for the adjoining property. In some cases, additional inspections may be required at the end of the project — for example, to assess any potential damage or to inspect areas that may later be inaccessible, such as from scaffolding.
To obtain a quote for your Party Wall services, simply submit your contact information and site address, or upload your floor plans for our review.
If you are considering a loft conversion in London or the Home Counties, our experienced architects, engineers, and construction team bring years of expertise to deliver high-quality, bespoke results.
We offer a fully inclusive design & build service, managing every stage of the project from planning permission & building regulations approval through to complete construction and finishing, including brickwork, chimney removal, timber floors, steel beam supply and installation, shell construction, timber roofing, waterproofing, electrical & plumbing works, plastering, tiling, flooring, painting & decorating, window & skylight installation, en-suite bathroom fitting, and ongoing maintenance.
Structural Survey and Report - GSI and SSI
If you are considering a rear/side extension or basement conversion in London or the Home Counties, our experienced architects, engineers, and construction team bring years of expertise to deliver high-quality, bespoke home improvements.
We offer a fully inclusive design & build service, managing every stage of your project — from planning permission & building regulations approval to complete construction and finishes. Our services include excavation, foundations, brickwork, structural alterations, steel beam supply & fit, lintels, damp-proofing, shell construction, electrical & plumbing, plastering, tiling, flooring, painting and decorating, window & skylight installation, a fully fitted kitchen, an en-suite bathroom fitting, ensuring a seamless and stress-free rear process.