Architecture, online

See what you can build at your address — then build it.

An instant render, architect-quality concept drawings, and a priced design — generated from your address and your street's real planning approvals.

~180myour street's real approvals
Render + plansexisting · proposed · roof
Priceddesign + free survey

Do you already have drawings?

Choose your route

Yes — I have drawings

Go straight to your project, upload them, get a priced scope and start the build.

Start a project →

No — not yet

Type your address or pick what you want to build — we draw it from your home, based on what your street gets approved.

See what I can build →

Pick what you want to build

Loft · rear dormerstreet favourite

Loft — rear dormer

A full-width rear dormer with rooflights — the most-approved move on most streets. Full set: planning, plans, roof, renders.

See the full loft set →
Loft · hip-to-gable

Loft — hip-to-gable

Square off the side roof for a wider loft, with the extra floor area previewed on your plan.

See the full loft set →
Extension · rear

Rear extension

Open the back of the house for a bigger kitchen/dining, with bi-fold doors to the garden.

See it for my home →
Extension · side-returnoften approved

Side-return extension

Infill the side passage to widen the ground floor, with a glazed roof for light.

See it for my home →
Extension · wraparound

Wraparound extension

Side return plus rear — the full-width open-plan ground floor. Brick, bi-folds, flat roof + rooflights.

See it for my home →
Extension · double-storey

Double-storey extension

Space downstairs and a new bedroom above the back addition, in one concept set.

See it for my home →
Extension · kitchen

Kitchen extension

A bright open kitchen/dining off the back, sized to your home and priced for the build.

See kitchen packages →
Conversion · garage

Garage conversion

Turn an underused garage into a habitable room — office, snug or bedroom.

See it for my home →
Conversion · basement

Basement conversion

Preview a tanked lower-ground space with a priced design and party-wall route.

See it for my home →
Interior · bathroom

Bathroom / en-suite

Fitted bathroom packages — sanitaryware, tiling and M&E, trade-priced and installed.

See bathroom packages →
Renovation · whole-house

Whole-house renovation

Plan a full refresh — layout, finishes, extension and loft together, one priced project.

See it for my home →

Real concepts, drawn from approved schemes

Worked examples
60 Eynham Road, W12 · wraparound

A flat with no drawings → a full concept set

We read the street (a real approved wraparound two doors down), mirrored it to the right handing, and drew existing + proposed + roof — architect-quality, in our own linework.

9 Weiss Road, Putney SW15 · loft + extension

An approved scheme → a concept for a similar home

From a real approved loft + rear extension, we generate a bold, fully-dimensioned concept set — ground, loft and roof plans — for any similar terrace with no planning yet.

How it works

Address → drawings → build
1

Enter your address

We read your street's real planning approvals and refusals within ~180m.

2

See what you can build

A verdict per option with real neighbour evidence — and what tends to get refused.

3

Get your concept set

Render + existing, proposed and roof plans, adapted from approved local precedent.

4

Start your project

A priced design and a free survey — or upload your own drawings and go straight to build.

Every path starts your Suddeco project.

See what you can build, get the drawings, and carry it straight into your build — with our London team or your own.

What can I build? →