Building services design in Camden

Listed fabric, conservation areas and where plant can go

Camden has 40 conservation areas, 21 Article 4 directions and 1,971 listed building entries, and Historic England counts 35 places in the borough on its Heritage at Risk Register. That density of designation is the first thing we check for any services job.

On a listed house, new services are a consent question, not only a design one. Chasing a duct through a historic floor, drilling through a decorative cornice or fixing a condenser to a Georgian front wall can all need listed building consent. We draw routes that use existing voids and reuse old flues where we can, and we say plainly when a route will need consent before the drawing is issued.

The council's Home Improvements guidance is the document an officer uses for alterations to a house, and its Design guidance covers materials and detailing. Services affect both: a bright steel flue terminal on brick is a design choice, even if nobody calls it that.

Flats raise a different problem. A mansion-block flat may have a shared flue or riser, a communal boiler room or a lease clause about floor coverings and noise. We read the lease terms you send us, mark which parts of a route fall inside your demise, and keep plant away from bedroom walls that share a party wall with a neighbour.

Flats, basements and the figures behind the plant

Only 13.3 per cent of Camden households live in a house, and just 29.7 per cent own their home. A large part of the work is therefore flats, where plant has to sit inside the demise and the routes cross a shared structure.

The borough's Basements guidance applies when a lower floor is added or deepened. A basement brings drainage, ventilation and flood protection into the design, and we draw the pumped drainage, mechanical ventilation and power for those spaces on the same set as the rest of the house.

Some figures drive the design on every job. A heat pump flow temperature is limited to 55 degrees Celsius in the guidance, a bath tap should not deliver hotter than 48 degrees, and a new window is limited to 1.6 W/m²K, which matters when original sashes are being replaced or secondary glazed.

Electric heating and a heat pump change the picture for power as well. A new cylinder, a larger consumer unit and a charge point each take space and cable, and the drawing should show where all three go before the decorator is booked.

Planning pace and what you receive

The council decided 394 householder applications in its latest year and granted 89.1 per cent, but only 77.7 per cent were decided within eight weeks or an agreed extension. A clean set of drawings does not set the pace, but gaps and queries lengthen the process.

Our package is a services strategy note, a heat-loss summary, plant and riser positions in the model, and coordination sheets against the structure. Where full layouts are needed, our M&E drawings in Camden are added, and the whole set is issued beside the building regulations drawings in Camden. For the borough's wider rules, read architectural drawings in Camden.

We design and draw. An installer fits and certifies the systems. Send us the plans and we will give a fixed quote after a free constraints check.