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From small projects to
ambitious extensions

Choose the level of design, detail and support that fits your project and your needs.

Every package includes survey, design, planning support and vetted builder intros, all managed through our collaborative dashboard.

How we work

Express

From £1.5k

The streamlined, cost-effective route to build-ready for those who know what they want.

Focused concept design with one revision to reach the build stage fast

Standard planning support and building regs package to streamline approvals

Pre-selected builder and engineer for locked in costs

Remote-first collaboration with your Resi designer using the dashboard

Discuss your project

Explore

From £3k

A balanced mix of flexibility and expert guidance for those exploring design options before deciding.

Design exploration with three revisions to refine and compare your options

Standard planning submission support from in-house planners

Advanced building regs drawings integrated with your structural engineering pack

Remote-first collaboration with your Resi designer using the dashboard

Discuss your project

Elevate

Bespoke pricing

Deeper collaboration with creative exploration and support for those seeking the most personal design

5+ design revisions with internal elevations and 3D render package

Multiple in-person site visits and creative workshops with your senior designer

Dedicated application handling and check-ins with senior planner

Advanced building regs drawings integrated with your structural engineering pack plus additional construction details

Enhanced tender coordination between you, your builder and the Resi team

Virtual coordination meetings and site visits to catch issues before they happen

Discuss your project

Compare Resi packages

Express

Explore

Elevate

Extension type
A chat with the Resi team to answer any questions you have on budget, planning, design or anything else. You can then decide if Resi is the right architect for you.
Ground floor rear & loft Most extensions All extensions
Survey to planning submission
The amount of time the survey design process typically takes
~4 weeks ~6 weeks ~8 weeks
Project support
Free initial advice call
Dedicated account manager
Online dashboard access
A one stop shop project management platform. Store files, chart your project's progression, monitor your budget, connect you with third party contractors, message your Resi account manager, and more.
Technical advice call
An opportunity to go through your upcoming project in more detail with a technical expert from Resi, before committing to going ahead.
Measured survey
3D measured survey
Precise measurements and 360° imagery of your home captured using 3D scanning technology. The survey is turned into an accurate digital model of your property, ready for the design phase.
Design
Existing & proposed design drawings
Design concept call
The initial design is presented, either via video or phone call.
Number of design revisions 1 3 5+
Site visits
Option to have site visits during the design phase, and/or the construction phase, depending on location.
Early structural engineering involvement
Early collaboration with a structural engineer, before planning submission, to ensure design feasibility. Recommended for more bespoke designs.
Interior design concepts
Detailed plans, elevations, materials and products to help you visualise your home's interior.
3D rendered images
Realistic images showing how your finished home will look inside and out, created from your final design. Each image captures a different angle or space.
0 2 8
Planning support
Planning submission support
Dedicated planning consultant
You're assigned a personal planning consultant who will oversee your application and provide frequent updates on its progress.
Building regulations
Building regulations drawings
Detailed technical drawings to demonstrate how your design meets building safety and compliance standards. With our enhanced package, engineering drawings are fully integrated into your building regulation set, keeping it all in one place.
Standard Enhanced Enhanced
Structural engineering Flat rate Multiple quotes Multiple quotes
Pre-construction meeting
Before building works start, all stakeholders (including you, Resi, the builder, the engineer and any subcontractors) meet to align on the project.
Choice of structural engineer and CCTV drainage surveyor
Vetted builders
Tender service
Securing detailed quotes from local, Resi-vetted builders and helping you to compare them.
Final tender meeting
Final tender review between you, Resi and your chosen contractor, to make sure everything needed is included.
Fixed builder & cost
For simple, Express extensions, you're pre-allocated a builder with a locked-in project cost, for speed and clarity.

For all other packages, we will facilitate multiple vetted builder introductions for a competitive tender process.
Construction details
These are additional detailed drawings demonstrating how to construct the extension for the builder. Only necessary for more bespoke designs.
Check-in meetings throughout construction
Either via video or phone call.