The first step is to organise drawings for planning permission and for your structural engineer to use to specify the beams and supports required. We are able to offer a drawing service for planning permission via our architectural designer; we are also happy to use drawings that you supply.

From the drawings we prepare a line by line quotation, down to the cost per linear metre of skirting, to ensure everything is clear. Most of our work is quoted per fitting, square or linear metre to ensure transparency throughout the build. We then take you to meet former clients and show you the quality of our work.

Upon acceptance of the quote we ask for a small deposit to secure your slot then provide you with a programme of works outlining the timeline and build stages of your project alongside a payment schedule. The payment schedule will show that you retain 5% of the contract value until we are completely finished when 2.5% is released. The remaining 2.5% is held back until we return a few months later to undertake any snagging issues.

Once on site, we manage all trades, building control, rubbish removal and general site maintenance. We schedule weekly site meetings to discuss any design decisions and progress, with our Fulham Road office on hand to provide administration support. You are allocated a project manager and site foreman to see your project through from inception to final finish and our MD, Andy, personally oversees every job. As our labour is Bashtan only, we are able to start at relatively short notice, usually within about four weeks.

A full set of drawings along with a completed application form is submitted to your local planning department. Drawings need to include a site plan, existing and proposed elevations, sections, floor plans and roof plans. This is generally your first step in the build process. Your local council may provide a pre-planning service to give guidance on what’s permissible in the borough.

We offer a planning service which is entirely separate from our build service. We visit to discuss your plans, advise on planning rules, draw up a full set of plans and complete and manage the application process to your local planning office. From submission, the planning decision takes eight weeks.

Generally, for a London Victorian terrace only a single storey side/rear extension is allowed. The maximum height of the side wall varies by borough; throughout London Borough of Hammersmith & Fulham, it can be no higher than 2 metres (with a pitched roof) unless your neighbour has already built an extension, in which case it’s classed as an infill and can be 3 metres high, which means you may have a flat roof. If your garden is big enough, a typical side return kitchen extension can also wrap-around, which means it includes a rear extension.

A loft conversion is generally with roof windows (such as Velux) at the front and a rear dormer, unless your neighbours have front dormers, in which case you may be allowed to replicate. You are also allowed to build a rear loft/pod. Rules differ for larger, detached houses and our architectural designer can advise on options.

Flats don’t generally have permitted development rights. If you have a house and there’s not an Article 4 preventing permitted development, we can advise if this is the most appropriate route.

You will need calculations and drawings from a structural engineer. These specify the size and type of steels and supports we install and are important for pricing. These will also form part of your party wall award (see below) and building control sign-off. You will also need to inform Building Control, either via your local council or privately. The Building Control Officer will visit throughout the build to ensure everything is being built safely and to fire regulations. You can either submit plans prior or work on a building notice basis, which means plans aren’t submitted and the officer visits site more frequently.

Unless your property is detached on a large plot, you will need to instruct a party wall surveyor. They will issue notices to your neighbours advising them of your intention to build. Often, it’s preferable to build astride the boundary/party wall to maximise space (if you’re in a terrace). Your neighbour is entitled to instruct their own surveyor and a condition survey of their house will be undertaken. Any damage or defects to your neighbour’s property are noted at the end of the build and you are liable to put these right. Your neighbour has two months to respond to the party wall notice, so it’s a good idea to submit these as soon as you can.

  • Architectural drawings
  • Fee to the planning department
  • Structural Engineer’s fees
  • Building control fee and drawings (if plans)
  • Party Wall surveyor fees and possible remedial works