
How Many Blog Posts Do You Need For Topical Authority
August 11, 2025
Common Local SEO Topical Authority Mistakes
August 21, 2025Local SEO often gets boiled down to a checklist: claim your Google Business Profile, get reviews, build some citations, maybe write a few location pages. Those things matter — but if you want to dominate search results for your area in the long run, you need more than just the basics. You need to become the trusted source on your subject in your local market. In other words, you need topical authority.
Topical authority isn’t only for big national brands or bloggers. In a local context, it can be even more powerful. If Google sees your business as the go-to source for your service or product in your city, you’ll appear more often in both the local map pack and the organic results. That means more clicks, more calls, and more foot traffic — without paying for ads.
We previously covered how to build topical authority, but in this guide, we’ll walk you through exactly how to build topical authority for local SEO, using real-world examples and comparisons so you can see how it works in practice. By the end, you’ll know how to structure your content, spot gaps your competitors are missing, and measure your progress over time.
What Topical Authority Means for Local SEO
In general SEO, topical authority is about covering a subject in depth so Google sees your site as the definitive source. In local SEO, the same principle applies — but with a geographic filter layered over the top.
Think of it like this:
- National topical authority: You want Google to see you as an expert on “wedding photography.”
- Local topical authority: You want Google to see you as the best source for “wedding photography in Manchester.”
That means your content needs to:
- Cover your topic comprehensively — all the services, questions, and subtopics people search for.
- Tie it to your location — so Google knows your expertise applies to a specific area.
If you run a local plumbing company in Bristol, you don’t just want a single “Plumber in Bristol” page. You want a network of pages and posts covering everything from “emergency plumbing services in Bristol” to “how to prevent burst pipes in cold weather in the South West” — each interconnected and signalling that you’re the authority here, not just anywhere.
Why Building Topical Authority Helps You Win in Local Search
Here’s why topical authority is such a game-changer for local SEO:
- It strengthens both map pack and organic rankings – Google often blends map and organic signals. If your site is authoritative for relevant topics, your GBP listing benefits too.
- It makes you harder to dislodge – Competitors can claim citations and even copy basic content, but they can’t easily replicate a deep, well-connected content library.
- It brings in traffic from “discovery” searches – Many local customers search for solutions rather than service names (e.g., “how to fix low water pressure” rather than “plumber near me”). Covering these topics earns you trust before the sale.

Real-Life Example: Boutique Store Wins with Localised Content
Let’s look at a case from a boutique store in San Francisco (featured in a local SEO case study)—not a national brand, but a local business that built topical authority through thoughtful, location-focused content.
Here’s a snapshot of what they did:
- Started a blog focusing on local fashion insights, such as style tips customized to the San Francisco climate and unique local trends.
- Highlighted local events and featured local influencers, weaving those stories into their content.
- Optimised product descriptions with terms rooted in the local context (e.g. “Bay Area fashion staples”, “San Francisco street style”).
Results:
- Their organic traffic surged by 70% in a year.
- Sales also jumped by around 60%, directly attributed to this localised content strategy
As you can see, building local topical authority can be an extremely powerful SEO strategy that will yield results for long time! If you need more convincing, take a look at our post covering the importance of topical authority.
But without further ado, let’s get into building local SEO authority!
Map Your Local Topic Universe
Before you can start writing, you need to know the full scope of your subject in a local context. This is your local topic universe — all the topics, subtopics, and questions that connect your service or product to your location.
Start with your core service keywords and add location modifiers:
- “Wedding photographer Manchester”
- “Manchester wedding venues”
- “Best time of year for outdoor weddings in Manchester”
Then branch out into related subtopics that people in your area might search for:
- “Engagement photoshoot locations in Manchester”
- “How much does wedding photography cost in Manchester?”
- “Best hair and makeup artists in Greater Manchester”
Pro Tip: Use local forums, community Facebook groups, and event listings to find locally relevant angles your competitors might be missing.
Example Table – Expanding a Local Topic Universe for a Bristol Plumber:
Core Topic | Local Angle | Supporting Content Ideas |
Emergency plumbing | “24/7 emergency plumber Bristol” | “What to do while waiting for an emergency plumber in Bristol” |
Leak detection | “Leak detection specialists in Bristol” | “How to spot hidden leaks in Victorian Bristol homes” |
Burst pipes | “Bristol burst pipe repair” | “Preventing burst pipes during cold snaps in the South West” |
Boiler repair | “Boiler repair Bristol” | “Choosing an energy-efficient boiler for Bristol weather” |
As you can see, we’re following the topical content cluster here. First, we create pillar pages around key services with a local angle on them. Then we build out supporting pages targeting long tail keywords that are very relevant to the area covered, both in terms of the topic and location.

Analyse Local Competitors’ Coverage
Just like in national SEO, you can’t set a realistic target without knowing what you’re up against. Search for your local keywords and see which competitors show up consistently in the map pack and the organic results.
Look at:
- How many relevant pages or posts they have.
- Whether they cover only core service pages or also educational content.
- How well they tie each topic to the local area.
Example:
If a rival Bristol plumber has 20 service pages and 15 blog posts all tied to local topics, and you have 5 service pages and no blog, you’ve got work to do.
Also check for gaps. Maybe they’ve covered “boiler repair Bristol” but not “boiler maintenance tips for Bristol landlords.” That’s your opportunity.
Checking your competitor’s local and topical coverage will help you get an idea of how much content you’ll need to write to achieve topical authority in your area.
Structure Your Content into Clusters With Local Pillars Supporting Content
Pillar pages act as your main authority hubs for a broad topic, while cluster pages drill into specifics. In local SEO, each pillar should have a geographic tie.
Make sure the pillar page is quite comprehensive and covers the topic in depth. One way to ensure this is to look at similar pillar pages for your competitors and note down the headings they cover. Make sure your page covers those and any extra sections that would make sense for the page.
Example Structure for a Manchester Wedding Photographer:
- Pillar: Wedding Photography in Manchester – Complete Guide
- Supporting Content: Best Wedding Venues in Manchester
- Supporting Content: Outdoor Wedding Photography Locations in Greater Manchester
- Supporting Content: Tips for Rainy-Day Wedding Photos in Manchester
- Supporting Content: Manchester Wedding Photography Packages Explained
By interlinking all clusters back to the pillar and to each other, you tell Google: we’ve covered this topic in full depth for this location.

Blend Service Content with Local Informational Content
Many local businesses focus only on transactional pages (service + city), but topical authority comes from blending that with high-quality informational content. This is how you can signal to search engines that you truly are an expert in your area and not simply covering the area with your goods and services.
For example, if you’re a Brighton-based landscaper, don’t stop at “Garden Design Brighton” and “Lawn Care Brighton.” Add posts like:
- “Best Low-Maintenance Plants for Brighton’s Coastal Climate”
- “How to Prevent Salt Damage to Coastal Gardens in East Sussex”
This approach not only boosts authority but also captures people earlier in the buying journey — often before they’ve even decided to hire someone.
Add Original and Locally Relevant Supporting Content
Original supporting content helps cement your local expertise. Search engines generally love new data and genuinely new content that is not simply regurgitating what hundreds of other sites are saying. For local topical authority, it’s even better if you can put a local angle on it just like with your other content.
Here are few types of original and local supporting content you may wish to write on:
- Case studies from local projects.
- Interviews with other local businesses or suppliers.
- Guides that combine your expertise with local events or conditions.
Example:
A Cardiff-based personal trainer could publish a case study on “Helping a Cardiff Marathon Runner Improve Their Time,” including references to the local route, weather conditions, and training facilities.
Once again, you’re looking to demonstrate your unique knowledge of the area and show you are the go to source on your niche within your town, city, or state.

Build Local Backlinks to Boost Authority
Even with great topical coverage, you’ll struggle to outrank competitors if they have stronger local backlink profiles. In fact, lack of local backlinks is one of the most common local topical authority mistakes we see when working with our clients. Link building for local businesses should focus on acquisition of niche relevant backlinks, as well as locally relevant backlinks. Mind you, the same link does not need to tick both of the boxes. When building location relevant backlinks you really don’t need to be as strict on niche relevance. Likewise, if you target a niche specific site for your link building campaign, it does not need to be too location relevant. Look for a good mix of both.
Target links from:
- Local news outlets and blogs.
- Community organisations and sponsorships.
- Local event pages (e.g., workshops, charity events).
Example:
If your Manchester wedding photography guide gets featured on a local wedding fair’s website, that backlink not only boosts your authority in Google’s eyes but also sends relevant local traffic directly to your site.
Not sure where to get started with link building? You might find our page on the easiest link building approaches helpful.
Measure and Adjust Over Time
Topical authority builds gradually. As you publish, track:
- How many local subtopics you’ve covered.
- Rankings for both transactional (“plumber Bristol”) and informational (“how to stop a leaking tap Bristol”) keywords.
- Backlinks earned to your local pillar pages.
If you see strong growth in some clusters but weakness in others, adjust your plan. Sometimes you’ll need fewer posts than you thought; other times you’ll discover entirely new clusters to cover. Measuring topical authority can help you understand how close you are to your goal of cornering the local SERPs for your target search intents. You’ll also know where to focus your efforts. For example, if you are already getting high quality traffic from one of your content clusters, but you are not even ranking at the top with most of your pages, this could be your next area of focus.
Conclusion
Building topical authority for local SEO is about more than just adding location names to your pages. It’s about creating a deep, well-connected body of content that answers every relevant question a potential customer might have — while making it clear you’re the expert here, in this specific place.
Map your local topic universe, analyse competitors, build location-specific pillar and cluster content, and support it with local backlinks. Keep measuring and refining your approach as you publish. Over time, you’ll go from “another local business” to the local authority in your niche — and that’s when the map pack, organic rankings, and local word-of-mouth all start working in your favour.