Home built by 68 Projects Building Co

Building Contractor in Diep River, Cape Town

Building Contractor in Diep River

68 Projects Building Co handles renovations, extensions, garage conversions, and damp and drainage work in Diep River — from our office in neighbouring Plumstead.

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Bathroom renovation completed in a Southern Suburbs home

Your Local Diep River Builders

Building on Low-Lying Ground Takes Local Knowledge

Diep River is named for the water running through it, and that is not incidental to building here. The ground is low and sandy, the water table sits close to the surface, and stormwater has to go somewhere. Extensions need foundations designed for the conditions, not assumed from a standard detail.

The housing stock is mostly solid single-storey homes from the 1940s to the 1960s on generous plots, with newer townhouse complexes filling former subdivisions and a light industrial edge along the Main Road side. Our office is in Plumstead next door, so we know this ground because we work on it every week.

Why Choose Us

We Price the Ground Conditions Honestly

The cheapest quote on a Diep River extension is often the one that has not looked at the foundations. Sandy, waterlogged ground can need a deeper or wider footing than a standard detail allows, and that cost is far better known before the build than discovered halfway through it.

  • Our office is in neighbouring Plumstead, minutes from any Diep River site
  • Real experience with damp and drainage on low-lying ground
  • One team coordinating structural, roofing, plumbing, and electrical work
  • Clear scope and written quote before any work starts
  • Guidance on plans and approvals for extensions, flatlets, and conversions
  • Clean, considerate work on occupied homes
Fully tiled and waterproofed bathroom completed in the Southern Suburbs

Properties We Work On

Family Homes, Flatlets, and Rental Stock

Diep River mixes long-held family homes with newer complexes and a steady investment market. We work on both, and the approach differs — a family extension runs to your timeline, a rental turnaround runs to a handover date.

Single-storey family homes

1940s to 1960s face-brick houses

Larger erven and subdivided plots

Townhouse and sectional title complexes

Rental and investment properties

Small commercial and light industrial premises

How It Works

How a Diep River Project Runs

A clear process keeps your project on scope, on budget, and free of surprises from the first site visit to handover.

01

Site Visit

We are based in Plumstead next door, so we can get to your Diep River property quickly and assess the work.

02

Design & Plans

We plan the layout — an added room, a converted garage, a reworked kitchen — and handle drawings and approvals.

03

Detailed Quote

You receive a clear quote covering labour, materials, structural work, and finishes.

04

Construction

Our team carries out the build with attention to structure, weatherproofing, and detail.

05

Handover

We complete the finishes, check the work, tidy the site, and hand over your finished space.

Serving Diep River & Beyond

Based Next Door, Building Across the Southern Suburbs

Our office in Plumstead puts our team within easy reach of Diep River, Southfield, Wynberg, Bergvliet, Kirstenhof, Tokai, and Constantia — as well as the wider Cape Town area. Wherever your property is, we bring the same standard of workmanship, clear communication, and reliable project management.

Frequently Asked Questions About Building in Diep River

Common questions from Diep River homeowners — covering extensions, ground conditions and damp, garage conversions, rental maintenance, and quotes.

Do you work throughout Diep River?

Yes, across the whole suburb and the areas around it, including Plumstead, Southfield, Bergvliet, Kirstenhof, and Heathfield. Our office is in Plumstead, so we are only a few minutes away.

Diep River sits low and the water table is high. Does that affect building work?

It does, and it is the single most important local factor. Ground water sits close to the surface across much of the suburb, which affects foundation design for extensions, makes damp more likely in existing walls, and means stormwater has to be planned rather than assumed. We check ground conditions at the site visit and price the foundation and drainage honestly rather than discovering the problem mid-build.

Can you add a bedroom or bathroom to a 1950s Diep River house?

Yes. Most homes here are solid single-storey builds on a decent plot, which usually leaves room to extend at the back or the side. We handle the foundation, structure, roof tie-in, and finishes so the addition reads as part of the original house rather than an afterthought.

What causes the persistent damp in older homes here?

Usually a combination. Many houses predate proper damp-proof courses, the ground holds water, and decades of raised paving and garden beds have often lifted the external ground level above the internal floor. We diagnose the actual source before quoting, because treating the symptom alone means it returns within a season.

Can you convert a garage into a flatlet for rental income?

Yes. It is one of the most cost-effective ways to add income on a Diep River plot. It is a change of use and needs approved plans, and the on-site parking requirement for your zoning has to be checked first — losing a garage can put the property below the required number of bays.

Do you handle ongoing maintenance for landlords and letting agents?

Yes. We take on repairs, between-tenant refurbishments, and ongoing maintenance, working to a fixed handover date where a unit needs to be ready.

How do I get a quote?

Get in touch to arrange a free site visit. We assess the property, discuss your ideas, and provide a written quote covering the full scope of work.

Still have questions? We're here to help!

Contact Us

Planning a Building Project in Diep River?

We are minutes away in Plumstead. Contact 68 Projects Building Co for a free site visit, honest advice, and a clear quote for your Diep River building project.

Areas We Service

Based in Cape Town, we provide renovations, structural repairs, waterproofing and property maintenance across the Southern Suburbs, the Northern Suburbs and surrounding areas. We work on both residential properties and commercial or industrial premises. If your suburb isn't listed below, get in touch — chances are we cover it too.

Residential Suburbs

Not sure if we cover your area? Reach out for a free site visit and quotation.

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