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Site Feasibility & Planning Risk

Know your site
before you
commit.

Fixed-price planning risk reports and site capacity studies for landowners and small developers. 10+ years of architectural experience. Five working days.

Order a report See what's included
Report B — Site Capacity
Site Capacity & Planning Risk
  • Policy context & site designations
  • Planning history analysis
  • Indicative dwelling count range
  • Density benchmarked locally
  • Affordable housing threshold flag
  • Indicative block plan sketch
£1,250
5 working
days
Scroll
✓
RIBA Architect, 10+ Years Experience
⏱
5 Working Day Delivery
£
Fixed Price — No Retainer
📋
PI Insured
The Problem

Most sites fail at planning because the risks weren't understood at acquisition.

01
You're making £100k+ decisions on guesswork
Sites get bought on instinct, vendor assurances, and Google Maps. The planning risk — constraints, policy, designations, precedent — only surfaces after the money is committed.
02
Traditional advice is slow, vague, and expensive
A planning consultant on retainer costs thousands before you've had a single answer. Pre-apps take months. What you need at appraisal stage is a clear, fast, senior view — not a lengthy engagement.
03
"How many units?" is the question no one will answer
The most important number in any site appraisal is how many units you can realistically build. Viable gives you that number — benchmarked against actual local approvals — before you exchange.

Two reports.
One decision
made clearly.

Fixed scope. Fixed price. Delivered in five working days. Choose the report that matches what you need to know.

Report A
Planning Risk
Assessment
For landowners and developers who need to understand their planning position before committing further capital to a site.
  • Local plan allocations and site designations
  • Planning history summary and what it signals
  • Key risk flags: listed buildings, highways, flood, ecology
  • CIL and S106 exposure assessment
  • Recommended application route
  • Three-point planning strategy
£750
fixed fee
5 working days
↗
Report B — Best Value
Site Capacity &
Planning Risk
Everything in Report A, plus an indicative capacity study — how many units your site can realistically support and whether the numbers stack up.
  • Full planning risk assessment (as Report A)
  • Net developable area calculation
  • Density benchmarked against local plan and comparable approvals
  • Indicative dwelling count range (min / max)
  • Parking and amenity space sense-check
  • Affordable housing threshold flag
  • Indicative block plan sketch
£1,250
fixed fee
5 working days
↗
How It Works

From site address
to report in five
working days.

1
Send the site
Address, site area if known, any constraints you're aware of, and which report you need. Takes five minutes.
2
We confirm scope
We'll confirm the brief, issue an invoice for 50% upfront, and lock in your delivery date.
3
We get to work
Policy research, planning history, density analysis. Experienced RIBA architect authorship throughout.
4
Report delivered
PDF report delivered by email. Clear, actionable, ready to share with your funder or solicitor.
What You Receive

A report you can
act on immediately.

Not a generic checklist. Not caveated to the point of uselessness. A clear professional assessment with a strategy attached.

  • ✓
    Policy Context
    Local plan allocation, site designations, national policy position
  • ✓
    Planning History
    What's been applied for, refused, approved — and what it signals for your proposal
  • ✓
    Risk Matrix
    Key constraint flags rated low / medium / high — listed buildings, flood, highways, ecology, S106 exposure
  • ✓
    Application Route & Strategy
    Recommended route, pre-app requirements, and a three-point action plan
  • ✓
    Capacity Study (Report B)
    Indicative unit count range, density benchmarking, block plan sketch, affordable housing threshold
Report B
Site Capacity & Planning Risk Assessment
Land r/o 14–22 High Street, Hertford SG14
Policy Context
Risk Assessment
Listed Buildings — Low
Highways — Medium
Flood Zone — Low
S106 — High
Capacity Study
8–11
units
0.32ha
net area
viable. — RIBA Architect
5 working days
Who We Are

Not a consultancy.
Not a practice.
A specialist product.

Viable is run by a RIBA architect with over a decade of experience across residential, commercial, and secure estate projects. We've negotiated planning permissions, authored fire strategies, managed NEC contracts, and delivered buildings with genuine technical complexity.

That experience is what you're paying for — distilled into a focused, fixed-price report that tells you exactly what you need to know at the right moment in your decision process.

RIBA
Chartered Architect
PI
PI Insured
10+
Years Delivery Experience
"Most sites fail at planning because the risks weren't understood at acquisition. Viable exists to close that gap — before you commit, not after."
Viable — Founding Principle
Get Started

Ready to know
what your site
can do?

Send us the address. We'll handle the rest. Report delivered in five working days — if a site falls outside our scope we'll tell you before anything is agreed.

Order Report A — £750 Order Report B — £1,250
50% upfront · balance on delivery