Building a house in DHA & Clifton: what's different by the sea
DHA and Clifton sit on low-lying, salty ground by the Arabian Sea, with their own approval routes and a chronic water shortage. What that means for your approvals, foundations, basement, materials and utility connections.
By Modood Ahmed, Founder & CEO, Zell·Updated 2 October 2026·10 min read
Quick answer
Building in DHA Karachi or Clifton means planning for three things the rest of Karachi worries about less: a shallow, salty water table (Phase 8 is partly reclaimed land), very corrosive sea air, and scarce piped water. In DHA, your plan is checked by DHA and approved by Cantonment Board Clifton, and DHA inspects and issues an NOC at each stage of construction. Clifton Blocks 8 and 9 fall under the Cantonment Board; the rest of Clifton is generally under the Sindh Building Control Authority. Get a soil test, design the foundations and basement for salt and water, and plan your own water storage.
Updated October 2026 · Based on the PDOHA Building Control & Town Planning Regulations 2020 and DHA Karachi's published procedures
DHA and Clifton are Karachi's most sought-after places to build, and in a few ways the hardest. The ground is low-lying and salty, the air off the sea corrodes metal fast, and piped water falls well short of what households need. The approval route is also different from the rest of the city. This guide covers what changes when you build here. For how much you can build on a DHA plot, see our DHA construction bylaws guide.
In DHA Karachi, you submit your building plan at DHA's Central Control Cell. DHA's Town Planning & Building Control wing checks it, and Cantonment Board Clifton (CBC) grants the final approval. During construction, DHA inspects and issues an NOC at five stages: foundation or basement, plinth, ground floor, each upper floor, and the stair tower. Each needs a certificate from a registered structural engineer or architect, and DHA aims to issue each NOC within 15 working days. On plots of 701 sq yd and above, the contractor must also be registered with the Pakistan Engineering Council (or PCATP) and approved by CBC. When the house is finished, DHA surveys it and CBC issues the completion certificate.
Who approves what
DHA Phases 1–8: when you submit the plan, your dues with DHA, CBC and the Military Estates Office (MEO) are checked. DHA's Town Planning & Building Control wing then reviews the plan, the MEO issues a land NOC, and CBC issues the approval letter.
Start within a year. If construction hasn't begun within a year of approval, DHA requires a revised plan, and it won't accept deviations of more than 40% of the approved constructed area.
Clifton Blocks 8 and 9 are inside Clifton Cantonment, so building matters there go through CBC.
The rest of Clifton generally falls under the Sindh Building Control Authority (SBCA) and the Karachi Building & Town Planning Regulations 2002. These require the owner to appoint a qualified professional to supervise construction. Confirm which authority covers your block before you appoint an architect.
One open question: in April 2026 the Sindh High Court asked CBC to prove its jurisdiction over DHA Phases 6, 7 and 8 for municipal taxes. We hadn't seen a ruling when this guide was updated, so check the current position with DHA when you submit.
The ground under DHA and Clifton
Much of Defence was built on tidal flats, creeks and swamps, and about 6 square kilometres of Phase 8 was reclaimed from the sea and Gizri Creek. Studies of DHA soils describe fine sandy silt and silty sand, a shallow water table and salty groundwater. They also flag a liquefaction risk at some sites in a strong earthquake. Seawater is also pushing inland under the city as groundwater is pumped out.
Get a soil investigation before the structural design. We couldn't find a clause in DHA's 2020 regulations that makes one compulsory for a house, but it costs little next to the foundation it informs. It tells your engineer how much load the ground can bear, how high the water sits, and how much sulphate and chloride is in the soil.
Design the foundations for salt: sulphate-resistant or blended cement below ground, a low water–cement ratio (0.40 where groundwater is salty), and at least 75 mm (3 inches) of concrete over any steel cast against soil.
Waterproof everything below ground before backfilling: footings, basement walls and the underground tank.
Set the plinth high enough to keep the ground floor dry. On Karachi's heaviest rain days, such as 27 August 2020 when more than 200 mm fell, low-lying roads in Defence flood.
Basements
Basements are popular in DHA as family lounges, gyms and entertainment rooms. DHA allows one up to the footprint of the ground floor, with a minimum height of 8 feet. They are also where the ground conditions cost the most.
Expect water when you dig. Where the water table is shallow, the excavation may need continuous pumping (dewatering). The walls and floor need a continuous waterproofing system, such as membrane tanking or crystalline waterproofing, not just a coat of bitumen.
Your neighbours are your responsibility. DHA's regulations make the owner responsible for the safety of adjoining buildings: you sign an indemnity bond before approval and must make good any damage. Basement walls next to an existing house must be finished within 45–60 days of starting excavation.
The sump pit must be designed and waterproofed against seepage.
Shore the excavation properly. Cracked walls next door are the most common basement dispute.
Sea air: corrosion everywhere, not just on the seafront
Researchers measuring corrosion around Karachi found mild steel at the city's marine sites corroding at 69–98 micrometres a year. That is 'high' to 'very high' on the international (ISO) corrosivity scale. They also found high levels of airborne salt across the city, barely falling with distance from the sea. In DHA and Clifton, anything metal outdoors is in a very aggressive environment.
Railings, gates and fittings: use stainless steel 316 or powder-coated aluminium. At a minimum, galvanise and paint steel. Avoid bare mild steel.
Steel inside concrete is protected mainly by the concrete itself, so it needs dense, well-cured concrete with full cover.
Air-conditioners: choose outdoor units with corrosion-protected coils and mount them where they can be rinsed. Expect units on sea-facing walls to wear out sooner.
Repaint exteriors and replace sealants more often than you would inland, and rinse salt off glass and stainless steel regularly.
Water: plan to supply your own
DHA receives about 4–5 million gallons of piped water a day against an estimated need of around 9 million, so most houses rely partly on tankers. KWSC's official tanker rates from 1 July 2026 run from Rs 1,560 for 1,000 gallons to Rs 3,900 for 5,000 gallons, and an increase is under review. Relief is coming but isn't here yet: in September 2026, KWSC and FWO signed a Rs 14 billion agreement for a 10-million-gallon-a-day pipeline from Dumlottee to DHA and Clifton, with a 12-month target. Clifton's blocks are supplied through KWSC's network, which suffered major outages in April and May 2026.
Size the underground tank generously, with a reliable pump and an overhead tank. DHA's regulations allow the underground tank to sit in the front open space.
On plots of 401 sq yd and above, DHA's regulations require a separate underground tank for grey water. Design it in from the start and use the water for the garden and for flushing.
Don't count on groundwater for drinking, because seawater has reached the aquifer under coastal Karachi. Fit a whole-house filter and a reverse-osmosis (RO) unit for drinking water.
Collect air-conditioner condensate for plants. A 2-ton unit can produce 18–27 litres a day.
Electricity, gas and solar
Electricity: apply to K-Electric online. For loads up to 15 kW it aims to connect within 30 days, after a site survey, payment of its estimate and a wiring test certificate from the Electric Inspector Karachi.
Gas: SSGC lifted its ban on new domestic connections in September 2025, but new connections are supplied with imported RLNG at a higher price. The application needs approved building plans and an NOC. SSGC's 2025 form listed a Sindh fee of Rs 22,725 for houses up to 300 sq yd and Rs 24,450 above that. Many new houses now plan for electric or LPG cooking instead.
Solar: DHA's regulations permit rooftop solar, as long as the panels don't rise above the stair tower. Since February 2026, new connections are on net billing, where power you export earns far less than power you import costs. Size the system for your own daytime use and consider a battery. Our 2026 home trends guide explains the change.
Clifton: rebuilding on older, denser streets
Clifton's residential blocks are older and denser than most of DHA, so many projects there replace an existing house. Turning a residential plot to commercial use is generally not permitted. The Supreme Court banned such conversions across Karachi in 2019, and in 2025 SBCA withdrew an amendment that would have allowed cafés in residential areas after residents objected. For a rebuild, budget for demolition and debris removal, check any walls you share with neighbours, and confirm the lease and approvals with the relevant authority before you design.
Before you start: a DHA and Clifton checklist
Confirm which authority approves your plan: DHA with CBC, CBC alone, or SBCA.
Check coverage, setbacks and height for your plot size with the bylaws and our plot calculator.
Commission a soil investigation, then the structural design for salt and water.
Plan your water: tank sizes, a grey-water tank (401 sq yd and above), filtration and RO.
Apply early to K-Electric and SSGC, and get NEPRA approval for solar.
Build DHA's stage NOCs into the schedule and tie your contractor's payments to them.
Sources
PDOHA Karachi Building Control & Town Planning Regulations 2020 (dhakarachi.org), and DHA Karachi's published procedures for building plans, construction NOCs and completion plans.
Cantonment Board Clifton (clifton.cantonment.gov.pk). Sindh High Court order on CBC jurisdiction: The News, 16 Apr 2026.
Karachi Building & Town Planning Regulations 2002. SBCA amendment withdrawn: Dawn, 16 May 2025.
DHA soils: Khan et al., International Journal of Economic and Environmental Geology, 2017. Phase 8 reclamation: Dialogue Earth, 5 Aug 2022. Seawater intrusion: Abbas et al., Journal of Hydrology: Regional Studies, 2025.
Atmospheric corrosion in Karachi: Zafar et al., npj Materials Degradation, 2023.
Water supply and the Dumlottee line: Dawn, 9 Jul 2025 and 13 Sep 2026. Tanker rates: ProPakistani, 1 Jul 2026.
K-Electric new connection process, July 2026. SSGC RLNG domestic connection form, September 2025. NEPRA net billing: Dawn, 10 Feb 2026.
Frequently asked questions
Who approves building plans in DHA Karachi?
You submit the plan at DHA's Central Control Cell. DHA's Town Planning & Building Control wing checks it, and Cantonment Board Clifton grants the final approval. DHA then issues an NOC at each construction stage, and CBC issues the completion certificate.
Is a soil test required to build a house in DHA Karachi?
We couldn't find a clause in DHA's 2020 regulations that makes one compulsory for a house, but we strongly recommend one. DHA has a shallow, salty water table, Phase 8 is partly reclaimed land, and the foundation design depends on the bearing capacity and the soil's sulphate and chloride content.
Can I build a basement in DHA Karachi?
Yes. DHA allows a basement up to the ground-floor footprint, with a minimum height of 8 feet. Because the water table is shallow on many plots, plan for dewatering during excavation and a continuous waterproofing system. You are responsible for the safety of neighbouring buildings, and basement walls next to an existing house must be finished within 45–60 days of starting excavation.
Who approves building plans in Clifton?
Clifton Blocks 8 and 9 are inside Clifton Cantonment, so CBC handles building matters there. The rest of Clifton generally falls under the Sindh Building Control Authority (SBCA) and the Karachi Building & Town Planning Regulations 2002. Confirm for your block before you design.
Can I get a gas connection for a new house in DHA?
New domestic connections reopened in September 2025, but only for imported RLNG at a higher price. You need approved building plans and an NOC to apply. Many new houses plan for electric or LPG cooking instead.
Why do houses near the sea in Karachi need different materials?
Salt attacks concrete and steel below ground, and airborne salt corrodes metal across the city. Measurements put Karachi's marine sites in the 'high' to 'very high' international corrosivity classes. Use sulphate-resistant concrete with full cover below ground, and stainless 316 or powder-coated aluminium for metal outdoors.
