Measured surveys, existing & proposed drawings, and full planning submissions for homeowners and small builders across Hounslow and London — drawn by someone who spent twenty years on the other side of the council's desk.
Every project runs through the same five stages, from a measured site survey to a signed-off submission, so you always know what's happening and what comes next. More about the practice →
Merchant Design Services is a residential architectural drawing practice based in Hounslow, producing existing & proposed drawings, feasibility layouts and planning submissions for extensions, loft conversions and alterations across London.
Sadiq trained in architecture and interior design before spending two decades as a design and traffic engineer inside London councils and consultancies — Camden, Brent, Merton and Croydon among them — taking schemes from site survey through detailed design to sign-off with Building Control, Thames Water and the Planning Portal.
That council-side experience is what shows up on the drawing sheet: dimensions that hold up to scrutiny, notes that answer the planning officer's question before it's asked, and a process built around getting consent without a second round of revisions.
From a first feasibility sketch to the fully dimensioned set your builder and the council both need.
Accurate existing floor plans and elevations, measured on site.
Early layouts testing what an extension or reconfiguration can achieve.
Habitable loft rooms, dormers and garage-to-living conversions.
Garden rooms and outbuildings, designed and drawn for consent.
Drawings for refurbishment projects, from single rooms to whole houses.
Full submission packages prepared to Planning Portal requirements.
Technical drawings and specification notes for Building Control sign-off.
Room layouts and bespoke joinery drawings.
Most enquiries fall into one of four categories — each drawn to the standard the relevant consent needs.
Single and double-storey rear, side and wrap-around extensions.
Habitable loft rooms, dormers and garage-to-living-space conversions.
Converting a single dwelling into flats, or a unit into a new use class.
Garden rooms, outbuildings and new-build dwellings from an empty plot.
The same sequence used on council-side schemes, scaled down to a single house.
Existing building measured and recorded on site.
Options sketched out against Permitted Development limits.
Existing & proposed plans, elevations and sections finalised.
Application lodged via the Planning Portal or Building Control.
Queries answered, drawings amended, consent secured.
A recent single-storey rear extension and loft conversion scheme, drawn for planning submission.
Every sheet carries dimensioned elevations, a materials note matching new work to existing, and the fire & ventilation notes a Building Control officer looks for first.
Site surveys and meetings are usually arranged in person; drawings can be produced for a project anywhere in London.
Note — materials used in any exterior work should match the appearance of the existing dwellinghouse; all sets include interlinked smoke alarms, fire-rated doors to circulation space and window specification notes as standard, in line with current Building Regulations.
A few sample notes below — this panel is built to drop in real client reviews as projects complete.
"Clear from the first meeting — knew exactly what the planning officer would ask for and drew it in from the start."
"Drawings came back on time, properly dimensioned, and the building control queries were minimal as a result."
"Good at explaining the process in plain terms and honest early on about what would and wouldn't get consent."
↳ Placeholder feedback — swap in verified reviews from Google or a past client once available.
A short call or site visit is usually enough to scope a feasibility drawing and a fixed quote.
Drawings are prepared to the scale and paper size your local authority requires — typically 1:100 or 1:50 at A3.
Fill this in and it'll open in your email app, ready to send — or call/email directly using the details on the left.