Our experience

We have achieved success in 500+ projects unlocking value for developers across London using our planning and architectural skills. We have ten years of experience in a broad range of projects for developers whether for individuals developing a single property or larger organisations wishing to build multi unit developments or changing the use of existing buildings, such as offices to flats or HMOs.

New Build Planning

Let us appraise your project

We can make an initial assessment of your site, detailing opportunities, constraints and development potential.

Development experience

Your vision, our expertise

We understand that you, the developer, are the expert at what you do and each project is different. Therefore, we provide a bespoke professional service, designed to achieve your individual requirements and objectives. The primary focus is ensuring that your vision for your development remains central.

Your profit maximised

As a multidisciplinary practice, our planning and architectural teams work together to achieve the best outcome for your project. We aim that, through excellent design and planning, you will achieve the most out of your available floor space; (we are proud that we have often been able to add value by achieving an unexpected extra dwelling or rooms by minimizing space that doesn’t represent profit) and our strategic approach to the planning system also allows us to succeed often in challenging projects.

Property development lounge

3 steps away from starting

We make it simple to turn your project into reality.

Talk to us

Talk to us

Get your project started with a free quote.

Submit your application

Submit your applications

Move through the planning process.

Achieve Success

Start to plan your build.

Property Development With You

Proven success

We have proven success with a large variety of different projects:

  • Upgrading HMOs

  • Change of Use from Shops/Offices/Restaurants

  • Conversions to flats

  • New build houses

  • New build blocks of flats

  • Redevelopment of Listed Buildings

  • Affordable housing provision

Specialist Consultant Partners

GPA has long established relationships with trusted professional partners who we work with to supply specialist expertise to developers. These include:

Affordable housing

Sustainability (COSH and BREEAM)


Structural engineers

Arboricultural consultants

Flood Risk assessment consultant

Daylight and energy assessment consultants

SUD Consultants

Topographical Surveyors

Acoustic consultants

Highway consultants



Party Wall surveyors

Quantity surveyors

Landscape consultants

Water Efficiency consultants


Planning phone consultation
Developers Case Studies