What is pre-purchase advice?

The best time to discover a site's problems is before you own them. We review sites and buildings ahead of acquisition, assessing development potential, identifying planning risks and opportunities and producing high-level assessments that tell you what the asset can realistically become and what stands in the way.

Where Pre-Planning & Feasibility sits in the RIBA process

0. Strategic Definition

1. Preparation & Briefing

2. Concept Design

7. Use

3. Spatial Coordination

6. Handover

5. Manufacturing & Construction

4. Technical Design

0. Strategic Definition

This is the "should we build?" moment. The team clarifies goals, budget, risks and constraints, explores options (including non-build solutions), and forms the business case. The outcome is a confirmed set of client requirements and a go/no-go decision.

1. Preparation & Briefing

All the groundwork happens here: site information, surveys, statutory context and stakeholder needs are gathered, and the Project Brief and outline programme are agreed. Procurement and planning strategies are sketched so everyone knows the road ahead.

Look at the whole process

Who uses acquisition advice?

This input sits alongside legal and financial due diligence in the acquisition process, giving investment decisions an evidenced architectural and planning dimension. It serves developers, occupiers and public bodies buying sites or buildings across Essex, London and the South East.

Why do Pre-Planning & Feasibility with AEC architecture?

Pre-acquisition site reviews

We review sites prior to purchase, identifying constraints and opportunities that may shape future development.

Development potential assessments

High-level assessments give clients a realistic sense of what a site can deliver before they commit to acquisition.

Development potential assessments

We identify planning risks and opportunities and provide strategic input to support investment decisions.

How does this fit into due diligence?

It sits alongside the legal and financial checks as the built-environment strand of the same exercise. Solicitors confirm what you are buying and accountants confirm what it costs; this work confirms what the asset can become, what planning will allow and what physical or contextual constraints the price should reflect.

A project we have worked on

Rooks Heath

Harrow

Education
Replacement / Redevelopment
Secondary school

Funding secured for a two-storey replacement block with eight classrooms, recording studio, IT rooms and amenities. Planning approved and conditions discharged; AEC delivered day-to-day project management throughout construction.

View project

FAQs

What does pre-purchase advice cover?

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Development potential, planning position and risk, physical and contextual constraints and a high-level view of what the site or building could support. The depth is matched to the transaction timescale.

How fast can you review a site under offer?

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Initial views within days, fuller desktop assessments typically within one to two weeks. Acquisition timetables drive the pace and we prioritise the risks that could change the decision.

Do you assess existing buildings as well as land?

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Yes. Conversion, extension and change-of-use potential are assessed alongside condition indicators, with permitted development rights checked where relevant to the intended use.

How does your advice fit alongside other due diligence?

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It complements legal, valuation and technical diligence by answering the development question: what can be done here and how hard will it be. Findings are shared with the wider advisory team.

Can the assessment support negotiations on price?

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Yes. Evidence of constraints, planning risk or hidden potential is directly relevant to what a site is worth to you, and clients use our findings in exactly that way.

What happens after completion?

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The pre-purchase work becomes the starting point for strategy, feasibility and design, so the knowledge gained during diligence carries into delivery without repetition.

What our clients say

From schools to homeowners, we work closely with every client to deliver thoughtful, lasting architecture here’s what they’ve said about working with us.

Sarah Mitchell
Headteacher, Hollowbrook primary

AEC understood exactly what our school needed a space that was calm, practical, and inspiring for students and teachers alike. The whole process felt collaborative from day one, and the end result has had a real impact on daily school life.

James Carter
Private homeowner, Cambridge

Working with AEC was seamless. They listened carefully, challenged our thinking in the right ways, and delivered a design that just works — light, functional, and surprisingly cost-efficient. We couldn’t be happier with the result.

Ravi Patel
Director, Ashore housing development

AEC brought clarity and creativity to a complex residential scheme. Their technical knowledge and attention to detail kept the project on track and their team were genuinely great to work with.

Sarah Mitchell
Headteacher, Hollowbrook primary

AEC understood exactly what our school needed a space that was calm, practical, and inspiring for students and teachers alike. The whole process felt collaborative from day one, and the end result has had a real impact on daily school life.

James Carter
Private homeowner, Cambridge

Working with AEC was seamless. They listened carefully, challenged our thinking in the right ways, and delivered a design that just works — light, functional, and surprisingly cost-efficient. We couldn’t be happier with the result.

Ravi Patel
Director, Ashore housing development

AEC brought clarity and creativity to a complex residential scheme. Their technical knowledge and attention to detail kept the project on track and their team were genuinely great to work with.

Sarah Mitchell
Headteacher, Hollowbrook primary

AEC understood exactly what our school needed a space that was calm, practical, and inspiring for students and teachers alike. The whole process felt collaborative from day one, and the end result has had a real impact on daily school life.

James Carter
Private homeowner, Cambridge

Working with AEC was seamless. They listened carefully, challenged our thinking in the right ways, and delivered a design that just works — light, functional, and surprisingly cost-efficient. We couldn’t be happier with the result.

Ravi Patel
Director, Ashore housing development

AEC brought clarity and creativity to a complex residential scheme. Their technical knowledge and attention to detail kept the project on track and their team were genuinely great to work with.

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