Your end-to-end commercial build solutions.
Hero · Commercial fit-out — full bleed image- Projects delivered
- 30+ Across London
- Spaces designed
- 70+ Office, retail & institutional
- Client satisfaction
- 100% Independently verified
- On-time delivery
- 97% Programme adherence rate
Specialists in commercial design & build, from fit-outs to full conversions.
We deliver architectural and construction solutions across all commercial sectors. Every brief, regardless of scale, runs through the same in-house planning, technical and delivery teams — no subcontracted handoffs, no information loss.
Featured capability — atmospheric build shotSpaces engineered for how your business actually operates.
Strategic spatial analysis, technical detailing and brand-quality finishes — delivered to programme.
Explore services →Optimised Space Planning & Feasibility
Rigorous spatial analysis to unlock the maximum commercial value of your property — tailored structural solutions aligned with long-term asset strategy.
Technical Commercial Conversions
High-performance structural designs engineered for commercial use — from initial feasibility to handover, with full regulatory compliance built in.
Brand-led Fit-out & Refurbishment
Translating brand identity into operational, scalable, high-specification environments — delivered ready for business without compromise.
End-to-end Project Management
Single-point accountability across planning, building control, programme management and stakeholder approvals — fully managed in-house.
Commercial work across every London sector.
From flagship retail to institutional refurbishment, we tailor our delivery model to the operational, regulatory and brand demands of each sector. Choose a sector to see how we approach it.
Workplaces engineered for the way your team actually operates.
From single-floor refurbishment to multi-level HQ relocations, we balance brand expression with operational throughput — and align our build programme to your move-in dates.
- 01 Cat A & Cat B fit-out
- 02 Phased occupied refurbishment
- 03 Acoustic, M&E and AV integration
- 04 Building Control & landlord approvals
Sector · Office HQ — interior wide shotRetail and hospitality interiors that perform on opening day.
Flagships, neighbourhood stores, restaurants and bars — we deliver shopfit packages that translate brand identity into floor performance, with rigorous attention to compliance and trading deadlines.
- 01 Shopfront & signage approvals
- 02 F&B and licensed-premises fit-out
- 03 Multi-site rollout coordination
- 04 Out-of-hours / overnight programmes
Sector · Retail flagship — shopfront detailBrand activations and pop-ups — built to withstand the public.
Pop-ups, takeovers, mobile activations and event builds. We translate brand strategy into physical environments that hit the design intent and survive a real audience.
- 01 Modular and de-mountable systems
- 02 Mobile / vehicle-based activations
- 03 Event-grade compliance & sign-off
- 04 Rapid programme — 4 to 8 weeks
Sector · Brand activation — installation shotEducation and institutional environments, delivered around term-time.
Schools, training centres, public-sector facilities. Our project teams specialise in phased execution and out-of-hours scheduling to ensure zero disruption to operations.
- 01 Safeguarding-aware site protocols
- 02 School-holiday phased programmes
- 03 DfE / public-sector compliance
- 04 Long-life material specification
Sector · Institutional — interior environmentDeveloper-led commercial conversions and asset uplift.
Working alongside developers and asset managers to convert, refurbish and reposition commercial floor area — reliably, profitably, and to the programme your investors expect.
- 01 Commercial-to-commercial conversion
- 02 Speculative Cat A delivery
- 03 Tenant-in-place refurbishment
- 04 Pre-let occupier coordination
Sector · Developer-led conversion — exteriorSocial housing refurbishment, delivered with residents in place.
Estate-wide refurbishment, communal area uplift and void turnaround for housing associations and local authorities. Resident liaison, decant minimisation and section 20 compliance built into our programme from day one.
- 01 Resident liaison & decant management
- 02 Section 20 & leaseholder consultation
- 03 Decent Homes & fire-safety upgrades
- 04 Void turnaround in ≤ 4 weeks
Sector · Social housing — communal refurbishmentHeritage and listed-building work, with the conservation rigour it demands.
Listed buildings, conservation areas and grade-protected interiors. We work alongside conservation officers and heritage consultants to deliver sensitive interventions that respect fabric and pass through Listed Building Consent without surprises.
- 01 Listed Building Consent & LPA liaison
- 02 Like-for-like fabric repair
- 03 Specialist trades & lime work
- 04 Heritage Statements & method statements
Sector · Heritage — listed façade detailUtilities and industrial fit-out for live, regulated environments.
Operations buildings, depots, control rooms and welfare facilities for utilities, transport and industrial operators. CDM, permit-to-work and asset-protection protocols are baked into our delivery model — and we work to your shutdown windows.
- 01 CDM principal contractor
- 02 Permit-to-work & asset protection
- 03 Shutdown / outage-window delivery
- 04 Industrial-grade M&E integration
Sector · Utilities · Industrial — operationsA portfolio built for commercial scale.
A small selection of recent projects — from brand activation in Westfield London to retail flagships in Covent Garden and corporate HQs across Zone 1.
A four-stage delivery model that holds across every project size.
No matter the sector or scale, every In:arch Commercial project moves through the same four-stage delivery framework — designed for transparency, accountability and programme certainty.
Consultation & Scoping
Defining the project roadmap, regulatory constraints and commercial goals for precise delivery — typically a 2 week discovery phase.
~ 1–2 weeksBudget & Programme Optimisation
Engineering a delivery strategy that balances brand requirements with commercial viability and ROI — fixed-price quote at handover.
~ 2–4 weeksExpert Execution
Bringing the design to life with skilled craftsmanship and attention to detail — full-time site management with weekly client reporting.
Programme dependentClose-out & Commissioning
Technical perfection and stakeholder approval through formal handover, snagging and final quality inspection — including 10-year structural guarantee.
~ 1–2 weeksWhat our commercial clients say.
A snapshot of feedback from directors and operators across brand, retail and hospitality. The full set of references is available on request.
The execution of our recent brand activation was outstanding from concept to delivery. Seamless, high-impact, and aligned with our strategic goals — a true partnership that yielded measurable results.
Executing our HQ fit-out alongside our mobile van conversions required exceptional versatility. A new benchmark for our franchise rollout — a truly reliable, strategic partnership.
Launching our first venture in Covent Garden required a truly reliable partner. Expert guidance, seamless project management and superior build quality made our retail debut a complete success.