Architectural design and planning in Horsham

Covering Horsham

Our coverage around Horsham (RH12) also includes Crawley, Horley and Haywards Heath.

Homes in the South East

The South East has a lot of 1930s and post-war semi-detached housing, well suited to rear extensions and hip-to-gable loft conversions, alongside period properties in conservation areas that need a more careful design.

What goes into architectural design and planning?

Designing and building under one roof means the drawings are priced as they are drawn, so there are fewer surprises when the quote arrives. If you only need drawings and a planning application, we can do that and you are free to use any builder.

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

What is the guide price for architectural design and planning in Horsham?

Indicative costs for architectural design and planning. London and the South East usually sit towards the top of each range.

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 Horsham?

Projects in England go through two separate checks. Planning (or confirmation that the work is permitted development) comes from the district, borough or unitary council, and building regulations approval comes from the council’s building control team or a registered building control approver. Where work touches a shared wall or digs near a neighbour’s foundations, the Party Wall etc. Act 1996 applies.

We confirm whether your project is permitted development, needs prior approval or needs a householder application, and prepare the right submission. A lawful development certificate is the best proof that permitted development work is lawful.

What should I think about before starting?

Planning and building regulations are separate approvals; most projects need building regulations even when planning is not needed.
Pre-application advice from the council can help on sensitive sites.

From first call to completion

Send us the details. Give us a postcode, a rough idea of size and some photos, by phone, form or the guide price tool.
We visit and measure. A surveyor checks the house, the boundaries and the ground, and discusses what is realistic.
Drawings, approvals, written quote. We prepare the design, apply for the approvals it needs, and give you a fixed price in writing.
Build and hand over. Our teams build to the programme, building control inspects, and you get the completion paperwork at the end.

Architectural design and planning: common questions

What is a lawful development certificate?

A certificate from the council confirming that work is permitted development, which is useful when you sell.

Do I need a structural engineer?

For steels, new openings, lofts and extensions, yes. We arrange the calculations.

Can you visit a house in Horsham to quote?

Yes. After a short call we arrange a site visit to measure up and agree what the design needs to do, then send a written price.

Also covering

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