Architectural design and planning in Darwen

Covering Darwen

We work in Darwen (BB3) and the places around it, including Blackburn, Accrington and Chorley.

Homes in the North West

The North West has long rows of Victorian terraced houses in its towns and cities, alongside inter-war semis and post-war estates, so rear extensions, dormer lofts and kitchen extensions are common projects.

What is included in architectural design and planning in Darwen?

Architectural design and planning covers everything before building starts: a measured survey of the house, design options, planning or permitted development drawings, the application itself, building regulations drawings and structural calculations. We offer it on its own or as part of a design-and-build project.

Measured survey of the existing house
Building regulations drawings and specification
Structural engineer’s calculations

What will architectural design and planning cost?

Guide prices for architectural design and planning, including VAT where it applies. Your fixed price is confirmed in writing after the survey.

Architectural design and planning	Guide price incl. VAT
Measured survey and existing drawings	£500 to £1,200
Planning drawings and application	£1,200 to £3,000
Building regulations drawings and specification	£1,000 to £2,500
Structural calculations	£500 to £2,000

How is architectural design and planning approved in Darwen?

In England we deal with the council’s planning team for permission or a lawful development certificate, with building control (the council or a registered building control approver) for inspections, and with neighbours under the Party Wall etc. Act 1996 where it applies.

We confirm whether your project is permitted development, needs prior approval or needs a householder application, and prepare the right submission.

What can affect architectural design and planning?

Pre-application advice from the council can help on sensitive sites.
Conservation areas and listed buildings need extra design care and supporting statements.

How does the project run?

Send us the details. Give us a postcode, a rough idea of size and some photos, by phone, form or the guide price tool.
Survey at your house. We look at the existing structure, services and access, and agree what the design needs to achieve.
Design and fixed price. You get drawings and a written price for the agreed specification before anything is ordered.
Build and hand over. Our teams build to the programme, building control inspects, and you get the completion paperwork at the end.

What people ask before starting

How much do extension plans cost?

Typically £3,000 to £7,000 including VAT from measured survey to building regulations drawings, plus council fees.

How long does planning take?

Councils aim to decide householder applications within eight weeks of validation.

Who deals with the council for a project in Darwen?

We do. We prepare the drawings, submit planning or permitted development paperwork if needed, and arrange building control inspections.

Also covering

Learn more about architectural design and planning, or see every project we cover in Darwen.