Cohanim ArchitectureCohanim Architecture
Expertise

What we solve

Your project is in safe hands. We spot the opportunities.

Most enquiries begin with a problem rather than a building - a refusal to overturn, a listed building to adapt, a Green Belt site with value to unlock, or a brief that fits no single category. Open any service below to see what it involves.

Largest Development Area (GIA)
60,000 sq/ft
Delivery
RIBA 0–7
Heritage Experience
Grade I · II* · II
RIBA Stage 0
Strategic definition
RIBA Stage 1
Preparation & brief
RIBA Stage 2
Concept design
RIBA Stage 3
Spatial coordination
RIBA Stage 4
Technical design
RIBA Stage 5
Construction
RIBA Stage 6
Handover
RIBA Stage 7
In use
I
Architectural design
RIBA stages 0–7 as lead consultant
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Our core offering covers architectural design from the concept stage through to construction and delivery, across multiple sectors including, private residential, civic, commercial, ecclesiastical and hospitality work. Design is iterative and grounded in context and investment value.

Delivery of over 225 Projects across the United Kingdom
Commercial, infrastructure, civil, government, residential, security sector, masterplanning, restoration and ecclesiastical
International schemes include delivery of bilingual projects
Stages
0–7
Role
Lead consultant
II
Technical design
Building regs and construction packages
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We help to execute both straight forward and complex technical drawing and Building Regulations packages and do not shy away from construction detailing which can be effectively priced by a QS and delivered by a contractor. In some instances our technical drawing suites for complex sites can amount to many hundreds of annotated and buildable construction drawings which are NBS compliance and operate within shared BIM environments.

Construction packages and detail drawing work
Building Regulations submissions
Coordination between disciplines including structural, services, fire engineering teams, security, specialist consultants, surveying teams
III
Concept design
Options appraisal, massing studies, precedent
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Early-stage options tested against the defined brief, the site and the planning position, so the direction is chosen by the team with as much information supporting it as possible. We are able to integrate deep rooted development knowledge to ensure the scheme is deliverable and explores various use cases to achieve attractive GDV and outcomes.

Options appraisal testing use-cases
Precedent and policy review at a local and national level (LP, SPD, NPPF etc.)
Establish stakeholder relationships
IV
Feasibility & Viability Studies
Pre-purchase and land acquisition advice
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We have a track record of testing feasibility work architecturally and through the lens of other disciplines, so that planning sensitivities and opportunities are fully analysed. We combine this with development viability testing - appraising value, cost and return alongside design and planning - so that clients see a single, joined-up picture of what a site can deliver.

Pre-purchase and land acquisition advice
Capacity and constraints testing
Viability and feasibility testing to present a suite of options to the client or developer
Local and national constraints including AONB, Green Belt, Conservation Area, Article 4, SPD, Housing Supply and Case Law
V
Masterplanning
Site-wide plans and multi-unit development
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In conjunction with viability assessment and feasibility work, as part of a wider conceptual brief, we have a track record in adding value to masterplans through intelligent planning strategy, architectural design and viability testing.

Site-wide plans and multi-unit development
Mixed-use and high-density schemes
Phasing and infrastructure strategy
VI
Development
High-density schemes, commercial tenancy, change of use
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Our track record is demonstrable and includes a varied group of projects which have provided developers with genuine returns that go far beyond what they previously envisaged. We achieve this through a variety of means, but ultimately it stems from our creativity, multidisciplinary approach, multi-sector knowledge, entrepreneurial thinking and commercial astuteness.

High-density residential and mixed-use schemes
Commercial tenancy work and Cat A / Cat B fit-out
Change of use and prior approval routes
Optimising unit yield and net saleable area
VII
Restoration, renovation & ecclesiastical
Grade I, II* and II listed buildings
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Extensive experience in historic restoration and renovation, and in ecclesiastical architecture with Grade I, II and II* listed buildings.

Grade I, II and II* listed buildings
Listed Building Consent and Conservation Area work
Ecclesiastical and faculty work
Heritage
I · II* · II
VIII
Contract administration
Contract administrator and lead consultant
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Acting as contract administrator through construction - valuations, instructions and inspections - so the built result matches what was consented.

Contract administrator and lead consultant
Valuations, instructions and site inspections
Practical completion and handover
IX
Multidisciplinary work
Leading consultant teams across practices
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Complex sites rarely call for one discipline. We have extensive experience acting for consortiums, leading teams of 30+ professionals across more than five disciplines - structural and M&E engineers, planning specialists, heritage advisors, quantity surveyors, scientific analysts, party wall surveyors and more - with our practice as the single point of contact throughout. On our largest diplomatic commissions, teams of over thirty consultants working across multiple languages are commonplace, producing bilingual reporting that can run to 3,000 pages at each RIBA stage. Clients get complete accountability for it: the whole consortium remains security-vetted, and background checks, action logs and structured reporting mean the hierarchy can be traced at every stage.

X
Security clearance
Vetted delivery for embassy and diplomatic sites
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Diplomatic and government commissions carry requirements that sit outside ordinary planning and design work - vetted personnel, controlled handling of sensitive drawings and information, and the ability to work within secure, often still-occupied embassy buildings. Our core team holds the security clearances this work demands, and we extend vetting to the wider consultant team as each project requires, so a mission or government client can appoint one practice for both the building and its security obligations. Every individual working on a cleared project is background-checked and logged before they set foot on site, with that record maintained for the life of the commission. Moreover, we ensure from the top down that values are aligned and that the long-term relationships these projects demand are maintained.

XI
Planning strategy & evidence
Promotion, representations and committee advocacy
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Difficult sites can be won or lost long before a decision is issued. We build the planning strategy alongside the design and carry it through each stage of the system - site promotion, pre-application engagement, representations on our client's behalf, and representation at planning committee - supported by financial modelling and viability assessments, market demand assessments, and the specialist reports that give a contentious scheme its footing, from heritage statements to technical evidence prepared for sites others have already been refused on. Where a scheme is likely to be tested, we prepare the evidence base to withstand that scrutiny from the outset, rather than assembling it in response to an objection. Not only do we succeed where others fail, we add value to your site. An exceptional case in point is an increase in site GDV from around £500,000 to a market disposal value north of £20,000,000 post build-cost.

XII
International & cross-border projects
Design and delivery beyond the UK
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Not every client or every site of ours sits inside the UK. We deliver projects for overseas clients and on international sites, coordinating design and construction information across jurisdictions, time zones and, where required, languages - currently including live work in Jeddah alongside our London and Home Counties commissions. We also work with international clients, including governments, on projects in London. The same RIBA 0–7 lead-consultant model applies wherever the site is, adapted to the local planning and regulatory framework rather than exported wholesale, and in some instances worked in tandem with international models.

XIII
BIM services
In-house modelling to ISO 19650 standard
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We deliver in Revit and the wider Autodesk suite, maintaining our own in-house BIM-trained personnel rather than outsourcing the model. Working in a shared federated model to BS EN ISO 19650 allows every discipline - architectural, structural, M&E - to design against the same live information, with clash detection catching conflicts on screen rather than on site. Combined with survey data and the wider software toolset, it means design, coordination and construction information stay accurate and current across every RIBA stage, for one consultant team or thirty.

Where we work
227 project locations
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Sierra Village Compound;51.6236,-0.2474,NW7 4NS;51.537,-0.4716,UB10 0AA;51.6544,-0.3986,WD18 0PN;51.5083,-0.1453,W1J;51.5555,-0.8459,SL7 2HE;51.4185,-0.5341,TW20 8LL;51.6971,-0.6063,HP5 1SE;51.5214,-0.7232,SL6 1EF;52.6701,-0.3795,PE9 4RJ;51.6078,-0.2928,HA8 6QT;51.6492,-0.717,HP15 7PZ;51.7732,-0.4573,HP2 6BJ;51.6664,-0.8074,HP14 4HF;51.6452,-0.8071,HP14 3AP;51.6444,-0.8035,HP14 3AE;51.6613,-0.9024,HP14 3TH;51.7555,-0.4513,HP2 4EW;51.4479,0.2281,DA1 5SD;51.5144,-0.1768,W2 3UN;51.5627,-0.2831,HA9 8JB;51.5141,-0.1754,W2 3UA;51.5348,-0.1168,N1 9UU;51.5773,-0.3244,HA1 3TP;51.5914,-0.104,N22 6BX;51.6475,-0.168,EN4 8RD;51.5709,-0.117,N4 4AP;52.1484,-3.4041,LD2 3AH;50.8557,0.5881,TN34 3EA;52.4985,-2.0059,B69 4PA;51.281,-0.3638,KT23 4BG;52.3134,-0.1651,PE29 2RW;52.1461,-0.4713,MK41 7RN;51.6129,-0.6444,HP9 2PL;51.6789,-0.8275,HP14 4HW;51.5185,-0.1662,W1H 4LG;51.5203,-0.1573,W1U 6AY;51.5281,-0.0917,EC1V 2PH;51.3789,-0.3895,KT12 3PF;51.5108,-0.1416,W1S 3RG;51.4918,-0.2032,W14 8ET;51.7529,-1.2519,OX1 4AN;50.1205,-5.5342,TR18 2LG;51.3162,-0.1662,SM7 3PP;51.5865,-3.0538,NP10 9XJ;51.4835,-0.6256,SL4 5EJ;51.7318,-0.5349,HP1 2RR;51.5599,-0.0555,E5 8BQ;51.5225,-0.141,W1T 6NJ;51.5262,-0.127,WC1H 9EL;51.5809,-0.0332,E17 7PF;51.5247,-0.1847,W9 1EE;51.446,-0.3537,TW2 6NQ;51.6445,-0.7941,Beechwood Road;51.5694,-0.2801,HA9 9NS;51.6404,-0.7006,HP10 8BA;51.4822,-0.098,86C Grosvenor Terrace;51.532,-0.7457,SL6 6SQ;51.5339,-0.7453,Gwendale;51.5298,-0.7378,SL6 6HT;51.4826,-0.2398,SW13 9AA;51.6217,-0.0956,N13 5SY;51.3743,-0.2462,KT4 7AU;53.8628,-3.0364,FY5 1RN;50.9416,-1.4108,SO16 7ET;50.8158,-0.5554,BN17 7EH;51.5242,-0.1399,W1T 5NP;54.5643,-1.318,TS18 1HA;53.6385,-2.1556,OL12 9TW;51.4789,0.087,SE18 2SB;51.8563,0.1053,SG10 6JE;51.6892,0.1027,CM16 4EL;51.6049,-0.8516,RG9 6PR;51.5165,-0.156,W1H 6LL;51.5075,-0.6102,SL1 2NN;51.7947,-0.2207,AL8 6LH;52.1157,0.1345,CB22 4PF;51.4921,-0.1429,SW1V 1PJ;51.6089,-0.2936,HA8 6RH;51.2717,-0.3196,RH5 6EL;51.5199,-0.1445,W1B 1QB;52.7173,1.6928,NR29 4BQ;51.5773,-0.0827,N15 6HR;51.5233,-0.6418,SL1 4NN;51.3595,-0.2163,SM3 8QB;51.539,-0.9018,RG9 2BT
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Henley-on-Thames · London
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Henley-on-Thames
Old Brewery House, 86 New Street
Henley-on-Thames RG9 2BT
London
207 Regent Street, 3rd Floor
London W1B 3HH