Insights

Turnkey Design Extension Architecture offers end-to-end architectural solutions spanning RIBA stages 0-7 with a turnkey approach, signaling opportunities to upsell project management, planning consultancy, and integrated design services for clients seeking cohesive, efficient project delivery.

Planning Expertise With skilled planning consultants and a focus on planning proposals, there is potential to engage in services around regulatory navigation, planning strategy, and permit optimization for both extensions and new developments.

Aesthetic and Accessibility Focus Emphasizing natural light, warm interiors, and accessible design suggests cross-sell opportunities into interior consultancy, accessibility audits, and post-occupancy evaluations to maximize user experience and satisfaction.

Mid-Sized Firm Advantage A team size of 11-50 positions Extension Architecture as a nimble firm capable of personalized service; targeted outreach to mid-market developers, housing builders, and small to medium-scale projects may yield high win rates and faster cycles.

Tech-Driven Delivery Utilizing tools like AutoCAD, SketchUp, Figma, and analytics platforms indicates readiness for BIM-enabled workflows and client collaboration portals—sales opportunities include offering advanced visualization, BIM support, and data-driven project tracking.

Similar companies to Extension Architecture

Extension Architecture Tech Stack

Extension Architecture uses 8 technology products and services including QuickBooks, Microsoft Clarity, AutoCAD, and more. Explore Extension Architecture's tech stack below.

Extension Architecture's Email Address Formats

Extension Architecture uses at least 1 email format:
Extension Architecture Email FormatsExamplePercentage
First@extensionarchitecture.co.ukJohn@extensionarchitecture.co.uk
100%

Frequently Asked Questions

What is Extension Architecture's phone number?

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You can contact Extension Architecture's main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is Extension Architecture's official website and social media links?

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Extension Architecture's official website is extensionarchitecture.co.uk and has social profiles on LinkedIn.

How much revenue does Extension Architecture generate?

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As of November 2026, Extension Architecture's annual revenue is estimated to be <$1M.

What is Extension Architecture's NAICS code?

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Extension Architecture's NAICS code is 54131 - Architectural Services.

How many employees does Extension Architecture have currently?

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As of November 2026, Extension Architecture has approximately 32 employees across 3 continents, including Europe, Asia and Africa. Key team members include Founder: Y. K., Managing Director: Y. K. and Social Media Manager: A. S. Explore Extension Architecture's employee directory with LeadIQ.

What industry does Extension Architecture belong to?

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Extension Architecture operates in the Architecture and Planning industry.

What technology does Extension Architecture use?

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Extension Architecture's tech stack includes QuickBooks, Microsoft Clarity, AutoCAD, SketchUp, CookieYes, Figma, Vimeo and Piwik PRO Core.

What is Extension Architecture's email format?

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Extension Architecture's email format typically follows the pattern of First@extensionarchitecture.co.uk. Find more Extension Architecture email formats with LeadIQ.

When was Extension Architecture founded?

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Extension Architecture was founded in 2010.
Extension Architecture logo

Extension Architecture

Architecture and PlanningEngland, United Kingdom11-50 Employees

Extension Architecture is a London-based architectural and planning practice located at 231 Roehampton Lane, 1st Floor, London SW15 4LB, United Kingdom. The firm employs a team of planning consultants, architects and engineers and guides clients through the RIBA Stages 0-7 with turnkey, end-to-end solutions. With 16 years of experience, the practice emphasizes transforming spaces through design that prioritizes aesthetics, accessibility, natural light, warm interiors and thoughtful detailing. The company operates with a staff in the 11-50 range and serves clients within its industry. More information is available on its website at https://extensionarchitecture.co.uk, and inquiries can be directed by phone at 0207 801 0566 or by email to info@extensionarchitecture.co.uk.

Section iconCompany Overview

Phone number
NAICS Code
54131 - Architectural Services
Founded
2010
Employees
11-50

Section iconFunding & Financials

  • <$1M

    Extension Architecture's revenue is estimated to be in the range of <$1M

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