Professional Planning Viability Assessments to ensure planning permissions are profitable and deliverable

We assess the development economics of a proposed scheme to identify the level of planning obligations it can realistically sustain while maintaining a reasonable level of profit to ensure deliverability. By appraising the Residual Land Value of your proposed scheme against the Site Value Benchmark, we robustly demonstrate to the council when a scheme is unable to absorb additional unviable planning obligations.

RICS Regulated

Independent Chartered Surveyors

100% Confidential Site Review

Our Development Viability Core Expertise

Planning Viability Assessments (FVA)

Development sites are unique, and unviable planning policies often ignore site-specific development economics. We prepare and submit robust Financial Viability Assessments (FVAs) using the standard Residual Land Value approach. By comparing this to the Benchmark Land Value (using the RICS-compliant Existing Use Value plus a premium model), we provide the local planning authority's assessor with the exact mathematical evidence required to justify a reduction in unviable planning obligations.

Independent Valuation & Viability Defense

Local planning authorities routinely appoint their own independent assessors to test our viability assumptions and review the market evidence informing your scheme’s Gross Development Value (GDV). We lead this negotiation process, vigorously defending our inputs against the council's assessors to protect your profit margins and ensure the final scheme remains commercially viable.

Why Choose Us?

Maximising Land Values

Ensuring that planning permissions are deliverable and that development viability obligations are not overly onerous is the most efficient way to protect and maximise land values.

Risk Mitigation

Small, isolated packages of on-site affordable housing can introduce disproportionate delivery risk. We negotiate your planning viability to ensure a highly deliverable, profitable scheme.

Commercially Focused

Ensuring developers maintain a reasonable level of profit is fundamental to tackling the housing crisis and getting homes built.

The Planning Viability Process Timeline

Appraisal & Site Analysis

We assess your proposed development plans, cost schedules, and local planning requirements. Our team models the scheme's Residual Land Value and compares it to the Benchmark Land Value (BLV) to identify the viability deficit.

FVA Preparation & Modeling

We draft a robust, RICS-compliant Financial Viability Assessment (FVA) utilising industry-standard development appraisal software. This report details the true financial parameters of your scheme to prove it cannot sustain unviable planning obligations.

Council Assessor Negotiations

Once submitted, we lead the discussions with the local planning authority's appointed assessor. We defend our viability inputs, Gross Development Value (GDV), and build costs to negotiate a commercially viable outcome.

Providing specialist planning and development viability consultancy across London, the Home Counties, and the South East.

Westminster Council

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Southwark Council

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Brent Council

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Richmond Council

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Brighton and Hove City Council

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Three Rivers District Council

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Broxbourne Council

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City of London

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Tower Hamlets Council

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Camden Council

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Kingston Council

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Westminster Council ✳︎ Southwark Council ✳︎ Brent Council ✳︎ Richmond Council ✳︎ Brighton and Hove City Council ✳︎ Three Rivers District Council ✳︎ Broxbourne Council ✳︎ City of London ✳︎ Tower Hamlets Council ✳︎ Camden Council ✳︎ Kingston Council ✳︎

Case Studies

Land at Wembley Point, HA9

Council

London Borough of Brent

Planning Reference

25/03385/FUL

Our Proposal

Creation of a separate lower ground floor level flat, removal of existing rood structure above third floor level, creation of new sheer extension to fourth floor level and recreation of roof structure

The Result

Council sought a payment of £850,000 which we negotiated down to £154k.

48 Galsworthy Road

Council

London Borough of Kingston

Planning Reference

23/AP/0741

Our Proposal

Demolition of the existing premises and erection of a new three storey building comprising two residential dwellings

The Result

Planning Permission granted.   Agreed no on-site provision of affordable housing an NIL payment in lieu of affordable housing

Get in touch

What our clients are saying about us.

  • “The Roscoe group provided us with affordable housing and Viability advice ahead of acquiring a site in South East England. Following an arduous planning process with lengthy viability negotiations handled by RG we successfully got consent and RG lined up a buyer of the affordable homes upon the grant of consent which de-risked the scheme for us and delivered much needed affordable housing in an efficient and effective manner.”

    Matthew Ahearn - Director - Canbury Homes

  • “We have used Roscoe Group on several occasions in connection with Valuation and Viability Advice. I have always found them to be thorough and knowledgeable. They are always prepared to take phone calls and respond to emails in a timely manner. Would happily recommend.’’

    Hugo Tobin - Wilton Trust Ltd

  • “Knowles has recently worked with Roscoe Group on multiple Land Acquisition and Viability negotiations, and throughout the partnership their experience and commitment to delivering was always evident, going over and above and ensuring our best interests were central. From the introduction, research, and overall approach, we couldn’t recommend them more highly and we look forward to continuing our relationship between Knowles & The Roscoe Group.”

    Megan Knowles - Director - Knowles Land

  • “Roscoe Group assisted me with my purchase, acting as my sole agent and advisor. They were always quick to respond to my enquires and provided me with very professional and reasoned advice. The Roscoe Group went above and beyond his initial scope of services and I couldn't recommend them highly enough.”

    Catriona Mcleod - Private Buyer